MOLECULAR SIEVE/FIBER COMPOSITE MATERIAL AND PREPARATION METHOD THEREOF

Abstract

The disclosure provides a molecular sieve/fiber composite material comprising molecular sieves and a fiber, the molecular sieves are distributed on the fiber surface and directly contact the fiber surface; the particle diameter D90 of the molecular sieves is 0.01 to 50 m, the particle size D50 of the molecular sieves is 0.005 to 25 m; the molecular sieves are distributed uniformly on the fiber surface of the fiber. The disclosure also provides a preparation method for the molecular sieve/fiber composite material and various applications. The molecular sieve/fiber composite material has high strength, elastic recovery ability, and dimensional stability, making the composite material strong and durable. The molecular sieve/fiber composite material has a simple structure, low cost, strong stability, high repeatability of performance, and high practical efficiency, and provides the application in the fields of hemostasis, beauty, deodorization, sterilization, water purification, air purification, and radiation resistance.

Claims

1. A molecular sieve/fiber composite material comprising molecular sieves and a fiber, the molecular sieves are distributed on the fiber surface and directly contact the fiber surface; a first particle diameter D90 of the molecular sieves is 0.01 to 50 m, second particle size D50 of the molecular sieves is 0.005 to 30 m; the molecular sieves are distributed uniformly on a fiber surface of the fiber; the uniform distribution of the molecular sieves on the fiber surface is detected by the method of: randomly taking n samples of the molecular sieve/fiber composite material at different locations, and analyzing a content of the molecular sieve on the fiber surface, where n is a positive integer greater than or equal to 8, a coefficient of variation of the content of the molecular sieves in the n samples is 15%.

2. The molecular sieve/fiber composite material of claim 1, wherein a first surface of the molecular sieve contacted with the fiber is defined as an inner surface, and the inner surface is a planar surface matched with the fiber surface; a growth-matched coupling is formed between the molecular sieve and the fiber on the inner surface of the molecular sieve; a second surface of molecular sieve uncontacted with the fiber is defined as an outer surface, and the outer surface is a non-planar surface.

3. The molecular sieve/fiber composite material of claim 2, wherein a detection method for forming a growth-matched coupling is performed in conditions as follows: the retention rate of the molecular sieve on the fiber is greater than or equal to 90% under ultrasonic condition for 20 minutes or more.

4. The molecular sieve/fiber composite material of claim 2, wherein the inner surface and the outer surface are composed of molecular sieve nanoparticles.

5. The molecular sieve/fiber composite material of claim 4, wherein the average size of the molecular sieve nanoparticles of outer surface is larger than the average size of the molecular sieve nanoparticles of inner surface.

6. The molecular sieve/fiber composite material of claim 1, wherein the molecular sieves are independently dispersed on the fiber surface.

7. The molecular sieve/fiber composite material of claim 6, wherein the independent dispersion refers that the minimum distance between the molecular sieve microparticle and the nearest molecular sieve microparticle is greater than or equal to one half of the sum of the particle sizes of the two molecular sieve microparticles.

8. The molecular sieve/fiber composite material of claim 4, wherein the average size of the molecular sieve nanoparticles of the inner surface is 2 to 100 nm.

9. The molecular sieve/fiber composite material of claim 4, wherein the average size of the molecular sieve nanoparticles of the outer surface is 50 to 500 nm.

10. The molecular sieve/fiber composite material of claim 1, wherein the molecular sieve is selected from the group consisting of aluminosilicate molecular sieve, phosphate molecular sieve, borate molecular sieve, heteroatom molecular sieve, and combination thereof.

11. The molecular sieve/fiber composite material of claim 1, wherein the molecular sieve is a molecular sieve after metal ion exchange.

12. The molecular sieve/fiber composite material of claim 11, wherein the metal ion is selected from the group consisting of strontium ion, calcium ion, magnesium ion, silver ion, zinc ion, barium ion, potassium ion, ammonium ion, copper ion, and combination thereof.

13. The molecular sieve/fiber composite material of claim 1, wherein the fiber is a polymer containing hydroxyl groups in a repeating unit.

14. The molecular sieve/fiber composite material of claim 1, wherein the fiber is selected from the group consisting of silk fiber, chitin fiber, rayon fiber, acetate fiber, carboxymethyl cellulose, bamboo fiber, cotton fiber, linen fiber, wool, wood fiber, lactide polymer fiber, glycolide polymer fiber, polyester fiber, polyamide fiber, polypropylene fiber, polyethylene fiber, polyvinyl chloride fiber, polyacrylonitrile fiber, viscose fiber, and combination thereof.

15. A preparation method for a molecular sieve/fiber composite material of claim 1, wherein the preparation method is an in-situ growth method, and the in-situ growth method comprises the following steps: (i) preparing a molecular sieve precursor solution and mixing the molecular sieve precursor solution with a fiber to obtain a mixture of the fiber and the molecular sieve precursor solution; (ii) processing the mixture of the fiber and the molecular sieve precursor solution obtained in step (i) with heat treatment to obtain the molecular sieve/fiber composite material.

16. The preparation method of claim 15, wherein the fiber is not subjected to pretreatment and/or no adhesives have been added; the pretreatment refers to a treatment method that destroys fiber structure of the fiber.

17. The preparation method of claim 15, wherein the molecular sieve precursor solution does not include a templating agent.

18. The preparation method of claim 15, wherein in the step (ii), a temperature of the heat treatment is 60 to 220 C., and a time of heat treatment is 4 to 240 h.

19. The preparation method of claim 15, wherein the molecular sieve is a mesoporous molecular sieve.

20. A compound, wherein the compound comprises the molecular sieve/fiber composite material according to any one of claim 1.

21. The compound of claim 20, wherein the compound is a hemostatic material.

22. The compound of claim 20, wherein the compound comprises an additive.

23. The compound of claim 22 wherein the additive is selected from the group consisting of metal, metal ion-containing compound, synthetic polymer compound, poorly soluble polysaccharide, protein, nucleic acid, pigment, antioxidant, mold inhibitor, detergent, surfactant, antibiotic, antibacterial agent, antimicrobial agent, anti-inflammatory agent, analgesic agent, antihistamine, and combination thereof.

24-82. (canceled)

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0145] FIG. 1 is a schematic diagram showing the destruction of a fiber structure caused by pretreatment of fiber in the prior art;

[0146] FIG. 2 is a scanning electron microscope image of a molecular sieve/fiber composite material after pretreatment of fiber in the prior art, in which the molecular sieve is wrapped on the fiber surface in an agglomerated form (Journal of Porous Materials, 1996, 3 (3): 143-150);

[0147] FIG. 3 is a scanning electron microscope image of a molecular sieve/fiber composite material after pretreatment of fiber in the prior art, in which the molecular sieve is wrapped on the fiber surface in an agglomerated or lumpy form (Cellulose, 2015, 22 (3): 1813-1827);

[0148] FIG. 4 is a scanning electron microscope image of a molecular sieve/fiber composite material after pretreatment of fiber in the prior art, in which the molecular sieve is partially agglomerated and unevenly distributed on the fiber surface (Journal of Porous Materials, 1996, 3 (3): 143-150);

[0149] FIG. 5 is a scanning electron microscope image of a molecular sieve/fiber composite material after pretreatment of fiber the prior art, in which a gap exists between the fiber and the molecular sieve (Journal of Porous Materials, 1996, 3 (3): 143-150);

[0150] FIG. 6 is a scanning electron microscope image of a Na-LTA molecular sieve/nanocellulose fiber composite material bonded by polydiallyl dimethyl ammonium chloride in the prior art (ACS Appl. Mater. Interfaces 2016, 8, 3032-3040);

[0151] FIG. 7 is a scanning electron microscope image of a NaY molecular sieve/fiber composite material bonded by a cationic and anionic polymer adhesive in the prior art (Microporous & Mesoporous Materials, 2011, 145 (1-3): 51-58);

[0152] FIG. 8 is a schematic diagram of a molecular sieve/fiber composite material prepared by blend spinning in the prior art;

[0153] FIG. 9 is a schematic diagram of molecular sieve/fiber composite material prepared by electrospun in the prior art (U.S. Pat. No. 7,739,452B2);

[0154] FIG. 10A is a scanning electron microscope image of a molecular sieve/fiber composite material according to the present disclosure (Bar=10 m) (test parameter SU80100 3.0 kV; 9.9 mm).

[0155] FIG. 10B is a scanning electron microscope image of the molecular sieve/fiber composite material according to the present disclosure (Bar=2 m) of the present disclosure (test parameter SU80100 3.0 kV; 9.9 mm).

[0156] FIG. 11 is a graph showing the content of molecular sieves on the fiber surface at 10 different locations of molecular sieve/fiber composite material according to the present disclosure;

[0157] FIG. 12A is a scanning electron microscope image of fibers in the molecular sieve/fiber composite material before the fibers are bonded with the molecular sieve (test parameter SU80100 3.0 kV; 9.9 mm).

[0158] FIG. 12B is a scanning electron microscope image of molecular sieves in the molecular sieve/fiber composite material after the fibers are removed from the molecular sieve/fiber composite material according to the present disclosure (test parameter SU80100 3.0 kV; 9.9 mm).

[0159] FIG. 13 shows a scanning electron microscope images of the inner surface (the contact surface between the molecular sieve and the fiber) (Bar=300 nm) and the outer surface (Bar=500 nm) of the molecular sieve of the molecular sieve/fiber composite material according to the present disclosure (test parameter SU80100 5.0 kV; 9.9 mm);

[0160] FIG. 14 shows a statistical distribution diagram of particle sizes of nanoparticles on the inner surface and the outer surface of the molecular sieves of the molecular sieve/fiber composite material according to the present disclosure;

[0161] FIG. 15 is a nitrogen adsorption and desorption isotherm diagram of a molecular sieve/fiber composite material according to the present disclosure, and the molecular sieve in the molecular sieve/fiber composite material is a mesoporous molecular sieve;

[0162] FIG. 16 is a scanning electron microscope image of a molecular sieve of Comparative Example 1 (test parameter SU80100 5.0 kV; 9.9 mm);

[0163] FIG. 17 is a schematic diagram showing the different binding strength of the molecular sieves and fibers of the molecular sieve/fiber composite material between the present disclosure and Comparative Example 2, with the influence of the growth-matched coupling between molecular sieves and fibers.

[0164] FIG. 18 is a schematic diagram of a molecular sieve/fiber complex material bonded by an adhesive in the prior art. The fiber, the adhesive, and the molecular sieve form a sandwich-like structure, and the intermediate layer is an adhesive;

[0165] FIG. 19A is a scanning electron microscope image of Combat Gauze commercialized by Z-Medica Co., Ltd. in Comparative Example 11 (Bar=50 m);

[0166] FIG. 19B is a scanning electron microscope image of Combat Gauze commercialized by Z-Medica Co., Ltd. in Comparative Example 11 (Bar=5 m);

[0167] FIG. 20 is a picture of a clay/fiber complex material in an aqueous solution in the prior art;

[0168] FIG. 21 is a graph of clay retention rate of clay/fiber complex material of a prior art in an aqueous solution under ultrasonic condition for different times;

[0169] FIGS. 22A-22B are schematic diagram of the positional relationship between two adjacent molecular sieve microparticles on the fiber surface of the molecular sieve/fiber composite materials; wherein, FIG. 22A is the aggregation of molecular sieve on the fiber surface in the composite material in the prior art, and FIG. 22B is the molecular sieve is independently dispersed on the fiber surface in the composite material in the present disclosure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0170] The present disclosure is further described below with reference to the drawings and embodiments.

[0171] The degree of ion exchange is the ion exchange capacity of the compensation cations outside the molecular sieve framework and cations in the solution. The method for detecting the ion exchange capacity is: immersing a molecular sieve/fiber composite material in a 5M concentration strontium chloride, calcium chloride or magnesium chloride solution at room temperature for 12 hours to obtain a molecular sieve/fiber composite material after ion exchange, and measuring the degree of strontium ion, calcium ion or magnesium ion exchange of the molecular sieves of molecular sieve/fiber composite material after ion exchange.

[0172] Effective specific surface area of molecular sieve shows the specific surface area of the molecular sieve on the fiber surface in the molecular sieve/fiber composite material. The detection method of the effective specific surface area of the molecular sieve: the specific surface area of the molecular sieve/fiber composite material is analyzed by nitrogen isothermal adsorption and desorption, and the effective specific surface area of the molecular sieve=the specific surface area of the molecular sieve/fiber composite materialthe specific surface area of the fiber.

[0173] Detection method of content of molecular sieve on fiber surface: the mass fraction of molecular sieve on the fiber is analyzed using a thermogravimetric analyzer.

[0174] The detection method of uniform distribution of molecular sieves on the fiber surface is: randomly taking n samples of the molecular sieve/fiber composite material at different locations and analyzing the content of the molecular sieve on the fiber surface, where n is a positive integer greater than or equal to 8. The coefficient of variation is also called the standard deviation rate, which is the ratio of the standard deviation to the mean multiplied by 100%. The coefficient of variation is an absolute value that reflects the degree of dispersion of the data. The smaller the value of the coefficient of variation, the smaller the degree of dispersion of the data, indicating that the smaller the difference in the content of molecular sieves on the fiber surface, the more uniform the distribution of molecular sieves on the fiber surface. The coefficient of variation of the content of the molecular sieves in the n samples is 15%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 10%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 5%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 2%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 1%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 0.5%, indicating that the molecular sieves are uniformly distributed on the fiber surface. Preferably, the coefficient of variation of the content of the molecular sieves is 0.2%, indicating that the molecular sieves are uniformly distributed on the fiber surface.

[0175] The detection method of the binding strength between the molecular sieve and the fiber is: putting the molecular sieve/fiber composite material in deionized water under ultrasonic condition for 20 min or more, and analyzing the content of the molecular sieve on the fiber surface by using a thermogravimetric analyzer. The retention rate on the fiber, the retention rate=content of the molecular sieve on the fiber surface after the ultrasound100%/content of the molecular sieve on the fiber surface before the ultrasound. If the retention rate is greater than or equal to 90%, it indicates that molecular sieve and fiber form a growth-matched coupling, and the molecular sieve is firmly bonded to the fiber.

[0176] The detection methods of D50 and D90 are: using scanning electron microscope to observe the molecular sieve microparticles on the surface of the molecular sieve/fiber composite material, and carrying out statistical analysis of particle size. D50 refers to the particle size corresponding to the cumulative particle size distribution percentage of the molecular sieve microparticles reaching 50%. D90 refers to the particle size corresponding to the cumulative particle size distribution percentage of the molecular sieve microparticles reaching 90%.

[0177] Detection method of hemostatic function: The hemostatic function of molecular sieve/fiber composite material is evaluated by using a rabbit femoral artery lethal model. The specific steps are as follows: (1) before the experiment, white rabbits were anesthetized with sodium pentobarbital intravenously (45 mg/kg); their limbs and head were fixed, and supine on the experimental table; part of the hair was removed to expose the right groin of the hind limb. (2) Then, the femoral skin and muscle were cut longitudinally to expose the femoral artery, and the femoral artery was partially cut off (about half of the circumference). After the femoral artery was allowed to squirt freely for 30 seconds, the blood at the wound was cleaned with cotton gauze, and then the hemostatic material was quickly pressed to the wound. After pressing for 60 seconds, the hemostatic material is lifted up slightly every 10 seconds to observe the coagulation of the injured part and the coagulation time is recorded. Infrared thermometers are used to detect changes in wound temperature (before and after using hemostatic material). (3) After hemostasis, observe the wound and suture the wound. The survival of the animals is observed for 2 hours after hemostasis. The survival rate=(total number of experimental white rabbits-number of deaths of white rabbits observed for 2 hours after hemostasis)100%/total number of experimental white rabbits, wherein the number of experimental white rabbits in each group is n, n is a positive integer greater than or equal to 6. (4) The difference in weight of the hemostatic material before and after use was recorded as the amount of blood loss during wound hemostasis.

Example 1

[0178] The preparation method of the Y-type molecular sieve/cotton fiber composite material of the present disclosure includes the following steps:

[0179] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1:20.

[0180] (ii) The cotton fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve/cotton fiber composite material.

[0181] Ten samples of the prepared Y-type molecular sieve/cotton fiber composite material were randomly taken at different locations, and the content of the Y-type molecular sieve on the fiber surface was analyzed by a thermogravimetric analyzer. The content of molecular sieve on the fiber in the ten samples was 25 wt %, 24.9 wt %, 25.1 wt %, 25.2 wt %, 25 wt %, 25 wt %, 24.9 wt %, 25 wt %, 25.1 wt %, 24.9 wt %. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 0.1 wt %, and the coefficient of variation is 0.4%, which indicates that the Y-type molecular sieve is uniformly distributed on the fiber surface.

[0182] The prepared Y-type molecular sieve/cotton fiber composite material was observed with a scanning electron microscope. Hemispherical molecular sieves with an average particle size of 5 m are independently dispersed on the fiber surface, as shown in FIGS. 10A-10B. The molecular sieves microparticles of the molecular sieve/fiber composite material are observed with a scanning electron microscope, and are performed statistical analysis of particle size to obtain a particle diameter D90 value of 25 m and a particle diameter D50 value of 5 m. The molecular sieves are obtained after removing the fibers by calcination. The inner surface of the molecular sieves in contact with the fiber is planar surface (caused by tight binding with the fiber), and the outer surface is spherical surface. The planar surface of the inner surface of the molecular sieves is a rough surface (FIG. 12B). The outer surface of the molecular sieve is composed of nanoparticles with corner angles, and the inner surface (the contact surface with the fiber) is composed of nanoparticles without corner angles (FIG. 13). The nanoparticles without corner angles make the inner surface of the molecular sieve match the fiber surface better, which is beneficial to the combination of the molecular sieve and the fiber. The average size of nanoparticles of the inner surface 61 nm is significantly smaller than that of the outer surface 148 nm, and small-sized particles are more conducive to binding with fibers tightly (FIG. 14). The detection method of the binding strength between the molecular sieve and the fiber: the molecular sieve/fiber composite material is under ultrasonic condition in deionized water for 20 min, and the content of the Y-type molecular sieves on the fiber surface is analyzed by using a thermogravimetric analyzer. It is found that the content of the molecular sieve on the fiber surface is the same before and after ultrasonic condition. It shows that the retention rate of molecular sieve on the fiber is 100%, which indicates that the growth-matched coupling is formed between the molecular sieve and the fiber, and the molecular sieve is firmly bonded to the fiber. The molecular sieve in the Y-type molecular sieve/cotton fiber composite material was analyzed by nitrogen isothermal adsorption and desorption, and a hysteresis loop was found in the isothermal adsorption curve, indicating that the molecular sieve has a mesoporous structure (FIG. 15). Using the method for detecting the effective specific surface area of the molecular sieve as described above, the effective specific surface area of the molecular sieve in the Y-type molecular sieve/cotton fiber composite material prepared in this embodiment was measured to be 490 m.sup.2 g.sup.1. Using the method for detecting the ion exchange capacity of the molecular sieve in the Y-type molecular sieve/cotton fiber composite material, the degree of calcium ion exchange is 99.9%, the degree of magnesium ion exchange is 97%, and the degree of strontium ion exchange is 90%.

Comparative Example 1

[0183] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0184] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0185] The effective specific surface area of the Y-type molecular sieve was 490 m.sup.2 g.sup.1, the degree of calcium ion exchange was 99.9%, the degree of magnesium ion exchange was 97%, and the degree of strontium ion exchange was 90%.

[0186] The effective specific surface area and ion exchange capacity of the above Y-type molecular sieve are used as reference values to evaluate the performance of the molecular sieve to the fiber surface in the Comparative Examples described below. The difference between this Comparative Example 1 and Example 1 is that only the Y-type molecular sieve is synthesized without adding fibers (the traditional solution growth method). Using a scanning electron microscope (FIG. 16), the synthesized molecular sieve is a complete microsphere composed of nanoparticles, and there is no rough planar surface (inner surface) in contact with the fibers compared with Example 1.

Comparative Example 2

[0187] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0188] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0189] (3) The above Y-type molecular sieve was added with deionized water to uniformly disperse the Y-type molecular sieve in an aqueous solution.

[0190] (4) Immerse the cotton fiber in the solution prepared in step (3) and soak for 30 min.

[0191] (5) Dry at 65 C. to obtain a Y-type molecular sieve/cotton fiber complex material (impregnation method).

[0192] The difference between this Comparative Example and Example 1 is that only the Y-type molecular sieve is synthesized without adding fibers (the traditional solution growth method). Using a scanning electron microscope, the synthesized molecular sieve is a complete microsphere composed of nanoparticles, and there is no rough planar surface (inner surface) in contact with the fibers compared with Example 1. Therefore, there is no growth-matched coupling between the molecular sieve and the fiber surface. The binding strength between the molecular sieve and the fiber was measured. The Y-type molecular sieve/cotton fiber complex material (impregnation method) was under the ultrasonic condition for 20 min, the retention rate of the molecular sieve on the fiber was 5%, indicating that the molecular sieve of Y-type molecular sieve/cotton fiber complex material (impregnation method) has a weak binding effect with the fiber, and the molecular sieve easily falls off (FIG. 17).

Comparative Example 3

[0193] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0194] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0195] (3) The above Y-type molecular sieve was added with deionized water to uniformly disperse the Y-type molecular sieve in an aqueous solution.

[0196] (4) Spray the solution prepared in step (3) on cotton fibers

[0197] (5) Dry at 65 C. to obtain a Y-type molecular sieve/cotton fiber complex material (spray method).

[0198] The difference between this Comparative Example and Example 1 is that the synthesized molecular sieve is sprayed onto cotton fibers. Using a scanning electron microscope, there is no rough planar surface (inner surface) in contact with the fibers compared with Example 1. Therefore, there is no growth-matched coupling between the molecular sieve and the fiber surface. The binding strength between the molecular sieve and the fiber was measured. The molecular sieve/fiber complex material was under the ultrasonic condition for 20 min, the retention rate of the molecular sieve on the fiber was 2%, indicating that the molecular sieve of Y-type molecular sieve/cotton fiber complex material (spray method) has a weak binding effect with the fiber, and the molecular sieve easily falls off.

Comparative Example 4

[0199] Refer to references for experimental steps (ACS Appl Mater Interfaces, 2016, 8(5):3032-3040).

[0200] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0201] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0202] (3) The above Y-type molecular sieve was added with deionized water to uniformly disperse the Y-type molecular sieve in an aqueous solution.

[0203] (4) Cotton fibers were immersed in a 0.5 wt % polydiallyl dimethyl ammonium chloride (polyDADMAC) aqueous solution at 60 C. for 30 minutes to achieve adsorption of Y-type molecular sieves (polyDADMAC is an adhesive 1).

[0204] (5) Dry at 65 C. to obtain a Y-type molecular sieve/cotton fiber complex material (including adhesive 1).

[0205] The difference between this Comparative Example and Example 1 is that the synthesized molecular sieve is bonded to cotton fibers through an adhesive. After detection of scanning electron microscope, there is no rough planar surface (inner surface) in contact with the fiber, so there is no growth-matched coupling. The binding strength between the molecular sieve and the fiber was measured. The retention rate of the molecular sieve on the fiber was 50% under ultrasonic condition for 20 min, indicating that the molecular sieve has a weak binding strength with the fiber, and the molecular sieve in the Y-type molecular sieve/cotton fiber complex material (including adhesive 1) easily falls off. After detection of scanning electron microscope, the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve. After testing, with the addition of adhesive, the effective specific surface area of the molecular sieve became 320 m.sup.2 g.sup.1, the degree of calcium ion exchange became 75.9%, the degree of magnesium ion exchange became 57%, and the degree of strontium ion exchange became 50%. The complex material with added adhesive reduces the effective contact area between the molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.

[0206] Ten samples of the prepared Y-type molecular sieve/cotton fiber complex material (including adhesive 1) were randomly taken at different locations, and the content of the Y-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 10 wt %, and the coefficient of variation is 40%, which indicates that the Y-type molecular sieve is unevenly distributed on the fiber surface.

Comparative Example 5

[0207] Refer to references for experimental steps (Colloids & Surfaces B Biointerfaces, 2018, 165:199).

[0208] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0209] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0210] (3) The above Y-type molecular sieve was dispersed in a polymeric N-halamine precursor water/ethanol solution (polymeric N-halamine precursor is an adhesive 2).

[0211] (4) The solution prepared in the step (3) was sprayed on cotton fibers

[0212] (5) Dry at 65 C. to obtain a Y-type molecular sieve/cotton fiber complex material (including adhesive 2).

[0213] The difference between this Comparative Example and Example 1 is that the molecular sieves with an adhesive were sprayed onto cotton fibers. After detection of scanning electron microscope, there is no rough planar surface (inner surface) in contact with the fiber, so there is no growth-matched coupling. The binding strength between the molecular sieve and the fiber was measured. The retention rate of the molecular sieve on the fiber was 41% under ultrasonic condition for 20 min, indicating that the molecular sieve has a weak binding strength with the fiber, and the molecular sieve in the Y-type molecular sieve/cotton fiber complex material (including adhesive 2) easily falls off. After detection of scanning electron microscope, the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve. After testing, with the addition of adhesive, the effective specific surface area of the molecular sieve became 256 m.sup.2 g.sup.1, the degree of calcium ion exchange became 65.9%, the degree of magnesium ion exchange became 47%, and the degree of strontium ion exchange became 42%. The complex material with added adhesive reduces the effective contact area between the molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.

[0214] Ten samples of the prepared Y-type molecular sieve/cotton fiber complex material (including adhesive 2) were randomly taken at different locations, and the content of the Y-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 4 wt %, and the coefficient of variation is 16%, which indicates that the Y-type molecular sieve is unevenly distributed on the fiber surface.

Comparative Example 6

[0215] Refer to references for experimental steps (Key Engineering Materials, 2006, 317-318:777-780).

[0216] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0217] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0218] (3) The Y-type molecular sieve sample was dispersed in a silica sol-based inorganic adhesive (adhesive 3) solution to obtain a slurry of a molecular sieve and adhesive mixture.

[0219] (4) The prepared slurry in the step (3) was coated on cotton fibers, and then kept at room temperature for 1 h, and then kept at 100 C. for 1 h. The fibers were completely dried to obtain a Y-type molecular sieve/cotton fiber complex material (including adhesive 3).

[0220] The difference between this Comparative Example and Example 1 is that the molecular sieves with a silica sol-based adhesive were coated on the cotton fibers. After detection of scanning electron microscope, there is no rough planar surface (inner surface) in contact with the fiber, so there is no growth-matched coupling. The binding strength between the molecular sieve and the fiber was measured. The retention rate of the molecular sieve on the fiber was 46% under ultrasonic condition for 20 min, indicating that the molecular sieve has a weak binding strength with the fiber, and the molecular sieve in the Y-type molecular sieve/cotton fiber complex material (including adhesive 3) easily falls off. After detection of scanning electron microscope, the molecular sieve was unevenly distributed on the fiber surface, and there was agglomeration of the molecular sieve. After testing, with the addition of adhesive, the effective specific surface area of the molecular sieve became 246 m.sup.2 g.sup.1, the degree of calcium ion exchange became 55.9%, the degree of magnesium ion exchange became 57%, and the degree of strontium ion exchange became 40%. The complex material with added adhesive reduces the effective contact area between the molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.

[0221] Ten samples of the prepared Y-type molecular sieve/cotton fiber complex material (including adhesive 3) were randomly taken at different locations, and the content of the Y-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 8.5 wt %, and the coefficient of variation is 34%, which indicates that the Y-type molecular sieve is unevenly distributed on the fiber surface.

Comparative Example 7

[0222] Refer to references for experimental steps (Journal of Porous Materials, 1996, 3(3):143-150).

[0223] (1) The fibers were chemically pretreated. The fibers were first treated with ether for 20 minutes and sonicated in distilled water for 10 minutes.

[0224] (2) A molecular sieve precursor solution was prepared, and a starting material was composed of 7.5Na.sub.2O:Al.sub.2O.sub.3:10SiO.sub.2:230H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution, followed by magnetic stirring for 1 h and standing at room temperature for 24 h. The molecular sieve precursor solution was mixed with pretreated cotton fibers.

[0225] (3) The pretreated cotton fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 100 C. for 6 h to obtain a Y-type molecular sieve/cotton fiber complex material (pretreatment of fiber).

[0226] The difference between this Comparative Example and Example 1 is that the fiber is pretreated, but the structure of the fiber itself is seriously damaged, which affects the characteristics such as the flexibility and elasticity of the fiber, and the fiber becomes brittle and hard. Therefore, the advantages of fiber as a carrier cannot be fully utilized. After detection by a scanning electron microscope, the molecular sieve was wrapped in the outer layer of the fiber, and there was still a gap between the fiber and the molecular sieve, indicating that this technology cannot tightly combine molecular sieve and fiber. Compared with Example 1, there is no rough planar surface (inner surface) in contact with the fiber, so there is no growth-matched coupling. The binding strength between the molecular sieve and the fiber was measured. The retention rate of the molecular sieve on the fiber was 63% under ultrasonic condition for 20 min, indicating that the molecular sieve has a weak binding strength with the fiber, and the molecular sieve in the Y-type molecular sieve/cotton fiber complex material (pretreatment of fiber) easily falls off. After testing, the agglomeration of molecular sieve makes the effective specific surface area of the molecular sieve to become 346 m.sup.2 g.sup.1, the degree of calcium ion exchange become 53%, the degree of magnesium ion exchange become 52%, and the degree of strontium ion exchange become 42%, which greatly reduces the effective contact area between the effective molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.

[0227] Ten samples of the prepared Y-type molecular sieve/cotton fiber complex material (pretreatment of fiber) were randomly taken at different locations, and the content of the Y-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 9 wt %, and the coefficient of variation is 36%, which indicates that the Y-type molecular sieve is unevenly distributed on the fiber surface.

Comparative Example 8

[0228] Refer to Chinese patent CN104888267A for experimental steps.

[0229] (1) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution.

[0230] (2) The molecular sieve precursor solution was heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve.

[0231] (3) Prepare polyurethane urea stock solution.

[0232] (4) The Y-type molecular sieve is ground in a dimethylacetamide solvent to obtain a Y-type molecular sieve solution.

[0233] (5) The polyurethane urea stock solution and the Y-type molecular sieve solution are simultaneously placed in a reaction container, and spandex fibers are prepared through a dry spinning process, and finally woven into a Y-type molecular sieve/spandex fiber complex material (blend spinning).

[0234] The difference between this Comparative Example and Example 1 is that the Y-type molecular sieve is blended and spun into the fiber. After detection by a scanning electron microscope, molecular sieve and fiber were simply physically mixed, and there was no growth-matched coupling. After testing, this method makes the effective specific surface area of the molecular sieve become 126 m.sup.2 g.sup.1, the degree of calcium ion exchange become 45.9%, the degree of magnesium ion exchange become 27%, and the degree of strontium ion exchange become 12%. The blend spinning method is used to prepare molecular sieve/fiber complex material, which greatly reduces the effective contact area between the effective molecular sieve and the reaction system, and reduces the ion exchange and pore substance exchange capacity of the molecular sieve.

Comparative Example 9

[0235] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution is mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1:0.3.

[0236] (ii) The cotton fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 100 C. for 24 h to obtain a Y-type molecular sieve/cotton fiber complex material. The content of Y-type molecular sieve was 90 wt %.

[0237] The difference between this Comparative Example and Example 1 is that the content of the Y-type molecular sieves is different. The content of the Y-type molecular sieves of this Comparative Example is greater than 80 wt %. After detection by a scanning electron microscope, the molecular sieves are clumped and wrapped on the fiber surface. The molecular sieves are not independently dispersed on the fiber surface, resulting in fiber stiffening. After testing, the agglomeration of molecular sieves makes the effective specific surface area of the molecular sieve become 346 m.sup.2 g.sup.1, the degree of calcium ion exchange become 53%, the degree of magnesium ion exchange become 52%, and the degree of strontium ion exchange become 42%. Both the effective specific surface area and ion exchange capacity are significantly reduced.

Example 2

[0238] The preparation method of the chabazite/cotton fiber composite material of the present disclosure includes the following steps:

[0239] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with cotton fiber, and the mass ratio of the cotton fiber and the molecular sieve precursor solution is 1:0.5.

[0240] (ii) The cotton fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 80 C. for 36 h to obtain a chabazite/cotton fiber composite material.

[0241] Ten samples of the prepared chabazite/cotton fiber composite material were randomly taken at different locations, and the content of the chabazite on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 25 wt %, the standard deviation of the samples is 2.5 wt %, and the coefficient of variation is 10%, which indicates that the chabazite is uniformly distributed on the fiber surface.

Example 3

[0242] The preparation method of the X-type molecular sieve/silk fiber composite material of the present disclosure includes the following steps:

[0243] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 5.5Na.sub.2O:1.65K.sub.2O:Al.sub.2O.sub.3:2.2SiO.sub.2:122H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with silk fiber, and the mass ratio of the silk fiber and the molecular sieve precursor solution is 1:10.

[0244] (ii) The silk fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 100 C. for 12 h to obtain a X-type molecular sieve/silk fiber composite material.

[0245] Eight samples of the prepared X-type molecular sieve/silk fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the eight samples was 15 wt %, the standard deviation of the samples is 1.5 wt %, and the coefficient of variation is 10%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 4

[0246] The preparation method of the A-type molecular sieve/polyester fiber composite material of the present disclosure includes the following steps:

[0247] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 3Na.sub.2O:Al.sub.2O.sub.3:2SiO.sub.2:120H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polyester fiber, and the mass ratio of the polyester fiber and the molecular sieve precursor solution is 1:50.

[0248] (ii) The polyester fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 100 C. for 4 h to obtain a A-type molecular sieve/polyester fiber composite material.

[0249] Ten samples of the prepared A-type molecular sieve/polyester fiber composite material were randomly taken at different locations, and the content of the A-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 50 wt %, the standard deviation of the samples is 7.5 wt %, and the coefficient of variation is 15%, which indicates that the A-type molecular sieve is uniformly distributed on the fiber surface.

Example 5

[0250] The preparation method of the ZSM-5 molecular sieve/polypropylene fiber composite material of the present disclosure includes the following steps:

[0251] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 3.5Na.sub.2O:Al.sub.2O.sub.3:28SiO.sub.2:900H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polypropylene fiber, and the mass ratio of the polypropylene fiber and the molecular sieve precursor solution is 1:200.

[0252] (ii) The polypropylene fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 180 C. for 42 h to obtain a ZSM-5 molecular sieve/polypropylene fiber composite material.

[0253] Ten samples of the prepared ZSM-5 molecular sieve/polypropylene fiber composite material were randomly taken at different locations, and the content of the ZSM-5 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 30 wt %, the standard deviation of the samples is 1.5 wt %, and the coefficient of variation is 5%, which indicates that the ZSM-5 molecular sieve is uniformly distributed on the fiber surface.

Example 6

[0254] The preparation method of the -molecular sieve/rayon fiber composite material of the present disclosure includes the following steps:

[0255] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 2Na.sub.2O:1.1K.sub.2O Al.sub.2O.sub.3:50SiO.sub.2:750H.sub.2O:3HCl in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with rayon fiber, and the mass ratio of the rayon fiber and the molecular sieve precursor solution is 1:100.

[0256] (ii) The rayon fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 135 C. for 25 h to obtain a -molecular sieve/rayon fiber composite material.

[0257] Eight samples of the prepared -molecular sieve/rayon fiber composite material were randomly taken at different locations, and the content of the -molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the eight samples was 25 wt %, the standard deviation of the samples is 2 wt %, and the coefficient of variation is 8%, which indicates that the -molecular sieve is uniformly distributed on the fiber surface.

Example 7

[0258] The preparation method of the mordenite/acetate fiber composite material of the present disclosure includes the following steps:

[0259] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 5.5Na.sub.2O:Al.sub.2O.sub.3:30SiO.sub.2:810H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with acetate fiber, and the mass ratio of the acetate fiber and the molecular sieve precursor solution is 1:300.

[0260] (ii) The acetate fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 170 C. for 24 h to obtain a mordenite/acetate fiber composite material.

[0261] Ten samples of the prepared mordenite/acetate fiber composite material were randomly taken at different locations, and the content of the mordenite on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 35 wt %, the standard deviation of the samples is 5.25 wt %, and the coefficient of variation is 15%, which indicates that the mordenite is uniformly distributed on the fiber surface.

Example 8

[0262] The preparation method of the L-type molecular sieve/carboxymethyl cellulose composite material of the present disclosure includes the following steps:

[0263] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 2.5K.sub.2O:Al.sub.2O.sub.3:12SiO.sub.2:155H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with carboxymethyl cellulose, and the mass ratio of the carboxymethyl cellulose and the molecular sieve precursor solution is 1:1.

[0264] (ii) The carboxymethyl cellulose and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 220 C. for 50 h to obtain a L-type molecular sieve/carboxymethyl cellulose composite material.

[0265] Ten samples of the prepared L-type molecular sieve/carboxymethyl cellulose composite material were randomly taken at different locations, and the content of the L-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the ten samples was 10 wt %, the standard deviation of the samples is 0.2 wt %, and the coefficient of variation is 2%, which indicates that the L-type molecular sieve is uniformly distributed on the fiber surface.

Example 9

[0266] The preparation method of the P-type molecular sieve/bamboo fiber composite material of the present disclosure includes the following steps:

[0267] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:400H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with bamboo fiber, and the mass ratio of the bamboo fiber and the molecular sieve precursor solution is 1:2.

[0268] (ii) The bamboo fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 150 C. for 96 h to obtain a P-type molecular sieve/bamboo fiber composite material.

[0269] Twenty samples of the prepared P-type molecular sieve/bamboo fiber composite material were randomly taken at different locations, and the content of the P-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the twenty samples was 80 wt %, the standard deviation of the samples is 4 wt %, and the coefficient of variation is 5%, which indicates that the P-type molecular sieve is uniformly distributed on the fiber surface.

Example 10

[0270] The preparation method of the merlinoite/linen fiber composite material of the present disclosure includes the following steps:

[0271] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:320H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with linen fiber, and the mass ratio of the linen fiber and the molecular sieve precursor solution is 1:1000.

[0272] (ii) The linen fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 120 C. for 24 h to obtain a merlinoite/linen fiber composite material.

[0273] Fifteen samples of the prepared merlinoite/linen fiber composite material were randomly taken at different locations, and the content of the merlinoite on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 30 wt %, the standard deviation of the samples is 0.3 wt %, and the coefficient of variation is 1%, which indicates that the merlinoite is uniformly distributed on the fiber surface.

Example 11

[0274] The preparation method of the X-type molecular sieve/wool composite material of the present disclosure includes the following steps:

[0275] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with wool, and the mass ratio of the wool and the molecular sieve precursor solution is 1:20.

[0276] (ii) The wool and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 60 C. for 16 h to obtain a X-type molecular sieve/wool composite material.

[0277] Fifteen samples of the prepared X-type molecular sieve/wool composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 27 wt %, the standard deviation of the samples is 2.1 wt %, and the coefficient of variation is 7.8%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 12

[0278] The preparation method of the X-type molecular sieve/wood fiber composite material of the present disclosure includes the following steps:

[0279] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with wood fiber, and the mass ratio of the wood fiber and the molecular sieve precursor solution is 1:5. The content of X-type molecular sieve was 42 wt %.

[0280] (ii) The wood fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 90 C. for 24 h to obtain a X-type molecular sieve/wood fiber composite material.

[0281] Fifteen samples of the prepared X-type molecular sieve/wood fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 42 wt %, the standard deviation of the samples is 2.1 wt %, and the coefficient of variation is 5%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 13

[0282] The preparation method of the X-type molecular sieve/lactide polymer fiber composite material of the present disclosure includes the following steps:

[0283] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with lactide polymer fiber, and the mass ratio of the lactide polymer fiber and the molecular sieve precursor solution is 1:50.

[0284] (ii) The lactide polymer fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 90 C. for 30 h to obtain a X-type molecular sieve/lactide polymer fiber composite material. The content of X-type molecular sieve was 26 wt %.

[0285] Fifteen samples of the prepared X-type molecular sieve/lactide polymer fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 26 wt %, the standard deviation of the samples is 1.1 wt %, and the coefficient of variation is 4.2%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 14

[0286] The preparation method of the X-type molecular sieve/glycolide polymer fiber composite material of the present disclosure includes the following steps:

[0287] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with glycolide polymer fiber, and the mass ratio of the glycolide polymer fiber and the molecular sieve precursor solution is 1:200.

[0288] (ii) The glycolide polymer fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 120 C. for 24 h to obtain a X-type molecular sieve/glycolide polymer fiber composite material. The content of X-type molecular sieve was 37 wt %.

[0289] Fifteen samples of the prepared X-type molecular sieve/glycolide polymer fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 37 wt %, the standard deviation of the samples is 0.2 wt %, and the coefficient of variation is 0.5%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 15

[0290] The preparation method of the X-type molecular sieve/polylactide-glycolide polymer fiber composite material of the present disclosure includes the following steps:

[0291] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polylactide-glycolide polymer fiber, and the mass ratio of the polylactide-glycolide polymer fiber and the molecular sieve precursor solution is 1:20.

[0292] (ii) The polylactide-glycolide polymer fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 90 C. for 24 h to obtain a X-type molecular sieve/polylactide-glycolide polymer fiber composite material. The content of X-type molecular sieve was 20 wt %.

[0293] Fifteen samples of the prepared X-type molecular sieve/polylactide-glycolide polymer fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 20 wt %, the standard deviation of the samples is 0.04 wt %, and the coefficient of variation is 0.2%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 16

[0294] The preparation method of the X-type molecular sieve/polyamide fiber composite material of the present disclosure includes the following steps:

[0295] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polyamide fiber, and the mass ratio of the polyamide fiber and the molecular sieve precursor solution is 1:0.8.

[0296] (ii) The polyamide fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 90 C. for 24 h to obtain a X-type molecular sieve/polyamide fiber composite material. The content of X-type molecular sieve was 50 wt %.

[0297] Fifteen samples of the prepared X-type molecular sieve/polyamide fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 50 wt %, the standard deviation of the samples is 2 wt %, and the coefficient of variation is 4%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 17

[0298] The preparation method of the X-type molecular sieve/rayon-polyester fiber composite material of the present disclosure includes the following steps:

[0299] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with rayon-polyester fiber, and the mass ratio of the rayon-polyester fiber and the molecular sieve precursor solution is 1:50.

[0300] (ii) The rayon-polyester fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 110 C. for 28 h to obtain a X-type molecular sieve/rayon-polyester fiber composite material. The content of X-type molecular sieve was 5 wt %.

[0301] Eight samples of the prepared X-type molecular sieve/rayon-polyester fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the eight samples was 5 wt %, the standard deviation of the samples is 0.05 wt %, and the coefficient of variation is 1%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 18

[0302] The preparation method of the X-type molecular sieve/chitin fiber composite material of the present disclosure includes the following steps:

[0303] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 10Na.sub.2O:Al.sub.2O.sub.3:9SiO.sub.2:300H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with chitin fiber, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:1.5.

[0304] (ii) The chitin fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 90 C. for 24 h to obtain a X-type molecular sieve/chitin fiber composite material. The content of X-type molecular sieve was 20 wt %.

[0305] Fifteen samples of the prepared X-type molecular sieve/chitin fiber composite material were randomly taken at different locations, and the content of the X-type molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 20 wt %, the standard deviation of the samples is 2.5 wt %, and the coefficient of variation is 12.5%, which indicates that the X-type molecular sieve is uniformly distributed on the fiber surface.

Example 19

[0306] The preparation method of the AlPO.sub.4-5 molecular sieve/polyethylene fiber composite material of the present disclosure includes the following steps:

[0307] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of Al.sub.2O.sub.3:1.3P.sub.2O.sub.5:1.3HF:425H.sub.2O:6C3H.sub.7OH in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polyethylene fiber, and the mass ratio of the polyethylene fiber and the molecular sieve precursor solution is 1:20.

[0308] (ii) The polyethylene fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 180 C. for 6 h to obtain the AlPO.sub.4-5 molecular sieve/polyethylene fiber composite material. The content of AlPO.sub.4-5 molecular sieve was 18 wt %.

[0309] Fifteen samples of the prepared AlPO.sub.4-5 molecular sieve/polyethylene fiber composite material were randomly taken at different locations, and the content of the AlPO.sub.4-5 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 18 wt %, the standard deviation of the samples is 2.5 wt %, and the coefficient of variation is 13.9%, which indicates that the AlPO.sub.4-5 molecular sieve is uniformly distributed on the fiber surface.

Example 20

[0310] The preparation method of the AlPO.sub.4-11 molecular sieve/polyvinyl chloride fiber composite material of the present disclosure includes the following steps:

[0311] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of Al.sub.2O.sub.3:1.25P.sub.2O.sub.5:1.8HF:156H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polyvinyl chloride fiber, and the mass ratio of the polyvinyl chloride fiber and the molecular sieve precursor solution is 1:0.5.

[0312] (ii) The polyvinyl chloride fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 145 C. for 18 h to obtain the AlPO.sub.4-11 molecular sieve/polyvinyl chloride fiber composite material. The content of AlPO.sub.4-11 molecular sieve was 28 wt %.

[0313] Fifteen samples of the prepared AlPO.sub.4-11 molecular sieve/polyvinyl chloride fiber composite material were randomly taken at different locations, and the content of the AlPO.sub.4-11 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 28 wt %, the standard deviation of the samples is 2 wt %, and the coefficient of variation is 7.1%, which indicates that the AlPO.sub.4-11 molecular sieve is uniformly distributed on the fiber surface.

Example 21

[0314] The preparation method of the SAPO-31 molecular sieve/polyacrylonitrile fiber composite material of the present disclosure includes the following steps:

[0315] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of Al.sub.2O.sub.3:P.sub.2O.sub.5:0.5SiO.sub.2:60H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with polyacrylonitrile fiber, and the mass ratio of the polyacrylonitrile fiber and the molecular sieve precursor solution is 1:1000.

[0316] (ii) The polyacrylonitrile fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 175 C. for 14.5 h to obtain a SAPO-31 molecular sieve/polyacrylonitrile fiber composite material. The content of SAPO-31 molecular sieve was 34 wt %.

[0317] Fifteen samples of the prepared SAPO-31 molecular sieve/polyacrylonitrile fiber composite material were randomly taken at different locations, and the content of the SAPO-31 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 34 wt %, the standard deviation of the samples is 5 wt %, and the coefficient of variation is 14.7%, which indicates that the SAPO-31 molecular sieve is uniformly distributed on the fiber surface.

Example 22

[0318] The preparation method of the SAPO-34 molecular sieve/viscose fiber composite material of the present disclosure includes the following steps:

[0319] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of Al.sub.2O.sub.3:1.06P.sub.2O.sub.5:1.08SiO.sub.2:2.09morpholine:60H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with viscose fiber, and the mass ratio of the viscose fiber and the molecular sieve precursor solution is 1:20.

[0320] (ii) The viscose fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 175 C. for 14.5 h to obtain a SAPO-34 molecular sieve/viscose fiber composite material. The content of SAPO-34 molecular sieve was 1 wt %.

[0321] Fifteen samples of the prepared SAPO-34 molecular sieve/viscose fiber composite material were randomly taken at different locations, and the content of the SAPO-34 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 1 wt %, the standard deviation of the samples is 0.01 wt %, and the coefficient of variation is 1%, which indicates that the SAPO-34 molecular sieve is uniformly distributed on the fiber surface.

Example 23

[0322] The preparation method of the SAPO-11 molecular sieve/chitin fiber composite material of the present disclosure includes the following steps:

[0323] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of Al.sub.2O.sub.3:P.sub.2O.sub.5:0.5SiO.sub.2:60H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with chitin fiber, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:1.5.

[0324] (ii) The chitin fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 175 C. for 48 h to obtain a SAPO-11 molecular sieve/chitin fiber composite material. The content of SAPO-11 molecular sieve was 35 wt %.

[0325] Fifteen samples of the prepared SAPO-11 molecular sieve/chitin fiber composite material were randomly taken at different locations, and the content of the SAPO-11 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 35 wt %, the standard deviation of the samples is 1.5 wt %, and the coefficient of variation is 5%, which indicates that the SAPO-11 molecular sieve is uniformly distributed on the fiber surface.

Example 24

[0326] The preparation method of the BAC-1 molecular sieve/chitin fiber composite material of the present disclosure includes the following steps:

[0327] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 1.5B.sub.2O.sub.3:2.25Al.sub.2O.sub.3:2.5CaO:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with chitin fiber, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:100.

[0328] (ii) The chitin fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 200 C. for 72 h to obtain a BAC-1 molecular sieve/chitin fiber composite material. The content of BAC-1 molecular sieve was 0.5 wt %.

[0329] Fifteen samples of the prepared BAC-1 molecular sieve/chitin fiber composite material were randomly taken at different locations, and the content of the BAC-1 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 0.5 wt %, the standard deviation of the samples is 0.04 wt %, and the coefficient of variation is 8%, which indicates that the BAC-1 molecular sieve is uniformly distributed on the fiber surface.

Example 25

[0330] The preparation method of the BAC-3 molecular sieve/chitin fiber composite material of the present disclosure includes the following steps:

[0331] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 3B.sub.2O.sub.3:Al.sub.2O.sub.3:0.7Na.sub.2O:100H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with chitin fiber, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:2.

[0332] (ii) The chitin fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 200 C. for 240 h to obtain a BAC-3 molecular sieve/chitin fiber composite material. The content of BAC-3 molecular sieve was 27 wt %.

[0333] Fifteen samples of the prepared BAC-3 molecular sieve/chitin fiber composite material were randomly taken at different locations, and the content of the BAC-3 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 27 wt %, the standard deviation of the samples is 0.08 wt %, and the coefficient of variation is 0.3%, which indicates that the BAC-3 molecular sieve is uniformly distributed on the fiber surface.

Example 26

[0334] The preparation method of the BAC-10 molecular sieve/chitin fiber composite material of the present disclosure includes the following steps:

[0335] (i) A molecular sieve precursor solution was prepared, and a starting material was composed of 2.5B.sub.2O.sub.3:2Al.sub.2O.sub.3:CaO:200H.sub.2O in a molar ratio to synthesize a molecular sieve precursor solution. The molecular sieve precursor solution was mixed with chitin fiber, and the mass ratio of the chitin fiber and the molecular sieve precursor solution is 1:20.

[0336] (ii) The chitin fiber and the homogeneously-mixed molecular sieve precursor solution were heat-treated at 160 C. for 72 h to obtain a BAC-10 molecular sieve/chitin fiber composite material. The content of BAC-10 molecular sieve was 21 wt %.

[0337] Fifteen samples of the prepared BAC-10 molecular sieve/chitin fiber composite material were randomly taken at different locations, and the content of the BAC-10 molecular sieve on the fiber surface was analyzed. The average content of molecular sieves on the fibers in the fifteen samples was 21 wt %, the standard deviation of the samples is 0.9 wt %, and the coefficient of variation is 4.2%, which indicates that the BAC-10 molecular sieve is uniformly distributed on the fiber surface.

Comparative Examples 10 and 11

[0338] Commercially available granular molecular sieve materials (Quikclot) and Combat Gauze from Z-Medica Co., Ltd., were taken as Comparative Examples 10 and 11, respectively. The hemostatic function of the materials was evaluated using a rabbit femoral artery lethal model.

[0339] Among them, the commercial Combat Gauze is an inorganic hemostatic material (clay, kaolin) attached to the fiber surface. Observed from the scanning electron microscope, the inorganic hemostatic material is unevenly distributed on the fiber surface, as shown in FIGS. 19A-19B, and the material is not bonded to the fiber surface, and it is easy to fall off from the fiber surface (FIG. 20). Clay retention rate on the gauze fiber is 10% or less under ultrasonic condition for 1 min; clay retention rate on the gauze fiber is 5% or less under ultrasonic condition for 5 min (FIG. 21); clay retention rate on the gauze fiber is 5% or less under ultrasonic condition for 20 min. This defective structural form limits the hemostatic properties of the hemostatic product and risks causing sequelae or other side effects.

[0340] The certain size of the molecular sieve in the molecular sieve/fiber composite material can promote the uniform distribution of the molecular sieve on the fiber surface. The size of the molecular sieve and the average particle diameters of the inner and outer surface nanoparticles in the synthetic composite materials of Examples 1-26 are shown in Table 1, according to the observation of the scanning electron microscope. In order to evaluate the binding strength between the molecular sieve and the fiber, the synthetic molecular sieve/fiber composite materials of Examples 1-26 were ultrasonicated in deionized water for 20, 40, 60, and 80 minutes, respectively. After ultrasonic testing, the retention rates of the molecular sieve on the fibers are shown in Table 2. In order to show that the molecular sieve in the molecular sieve/fiber composite material of the present disclosure maintains a good structure and performance on the fiber, after testing, the effective specific surface area and ion exchange capacity of the molecular sieve of Example 1-26 are shown in Table 3. In order to illustrate the superior hemostatic properties of composite material, a rabbit femoral artery lethal model was used to evaluate the hemostatic function of molecular sieve/fiber composite materials of Examples 1-26 and hemostatic materials of Comparative Examples. After observing and testing, statistical data of hemostatic performance are shown in Table 4.

TABLE-US-00001 TABLE 1 The particle size of molecular sieve of the molecular sieve/fiber composite materials and the average particle size of the nanoparticles on the inner and outer surfaces Average particle size Average particle size Molecular Molecular of the nanoparticles of the nanoparticles Serial sieve D90/ sieve D50/ on the outer surfaces/ on the inner surfaces/ number Material m m nm nm Example 1 Y-type molecular sieve/cotton 25 5 148 61 fiber composite material Example 2 Chabazite/cotton fiber composite 4 2 200 31 material Example 3 X-type molecular sieve/silk fiber 20 10 256 51 composite material Example 4 A-type molecular sieve/polyester 50 30 141 12 fiber composite material Example 5 ZSM-5 molecular 30 15 190 11 sieve/polypropylene fiber composite material Example 6 -molecular sieve/rayon fiber 6 4 110 33 composite material Example 7 Mordenite/acetate fiber composite 7 3 109 23 material Example 8 L-type molecular sieve/ 8 5.5 300 22 carboxymethyl cellulose composite material Example 9 P-type molecular sieve/bamboo 10 8 240 60 fiber composite material Example 10 Merlinoite/linen fiber composite 5 1 200 12 material Example 11 X-type molecular sieve/wool 10 5 240 4 composite material Example 12 X-type molecular sieve/wood fiber 0.1 0.05 3 2 composite material Example 13 X-type molecular sieve/lactide 0.01 0.005 3 2 polymer fiber composite material Example 14 X-type molecular sieve/glycolide 0.5 0.25 10 4 polymer fiber composite material Example 15 X-type molecular 1 0.5 30 20 sieve/polylactide-glycolide polymer fiber composite material Example 16 X-type molecular sieve/polyamide 5 2.5 30 20 fiber composite material Example 17 X-type molecular sieve/rayon- 20 13 195 68 polyester fiber composite material Example 18 X-type molecular sieve/chitin fiber 20 10 150 100 composite material Example 19 AlPO.sub.4-5 molecular 7.5 5.5 500 22 sieve/polyethylene fiber composite material Example 20 AlPO.sub.4-11 molecular 5 4 200 2 sieve/polyvinyl chloride fiber composite material Example 21 SAPO-31 molecular 3 3 109 25 sieve/polyacrylonitrile fiber composite material Example 22 SAPO-34 molecular sieve/viscose 5 4 110 33 fiber composite material Example 23 SAPO-11 molecular sieve/chitin 8 5 211 10 fiber composite material Example 24 BAC-1 molecular sieve/chitin 12 10 256 51 fiber composite material Example 25 BAC-3 molecular sieve/chitin 15 8 500 32 fiber composite material Example 26 BAC-10 molecular sieve/chitin 10 8 50 4 fiber composite material

TABLE-US-00002 TABLE 2 The binding strength of molecular sieve and fiber of molecular sieve/fiber composite materials Retention rate of Retention rate of Retention rate of Retention rate of molecular sieves molecular sieves molecular sieves molecular sieves on fibers under on fibers under on fibers under on fibers under Serial ultrasonic condition ultrasonic condition ultrasonic condition ultrasonic condition number Material for 20 min for 40 min for 60 min for 80 min Example 1 Y-type molecular sieve/cotton 100% 100% 100% 100% fiber composite material Example 2 Chabazite/cotton fiber 100% 100% 100% 100% composite material Example 3 X-type molecular sieve/silk 95% 95% 95% 95% fiber composite material Example 4 A-type molecular 100% 100% 100% 100% sieve/polyester fiber composite material Example 5 ZSM-5 molecular 98% 98% 98% 98% sieve/polypropylene fiber composite material Example 6 -molecular sieve/rayon fiber 100% 100% 100% 100% composite material Example 7 Mordenite/acetate fiber 91% 91% 91% 91% composite material Example 8 L-type molecular 99% 99% 99% 99% sieve/carboxymethyl cellulose composite material Example 9 P-type molecular sieve/bamboo 100% 100% 100% 100% fiber composite material Example 10 Merlinoite/linen fiber 100% 100% 100% 100% composite material Example 11 X-type molecular sieve/wool 90% 90% 90% 90% composite material Example 12 X-type molecular sieve/wood 100% 100% 100% 100% fiber composite material Example 13 X-type molecular sieve/lactide 100% 100% 100% 100% polymer fiber composite material Example 14 X-type molecular 100% 100% 100% 100% sieve/glycolide polymer fiber composite material Example 15 X-type molecular 100% 100% 100% 100% sieve/polylactide-glycolide polymer fiber composite material Example 16 X-type molecular 94% 94% 94% 94% sieve/polyamide fiber composite material Example 17 X-type molecular sieve/rayon- 96% 96% 96% 96% polyester fiber composite material Example 18 X-type molecular sieve/chitin 91% 91% 91% 91% fiber composite material Example 19 AlPO.sub.4-5 molecular 100% 100% 100% 100% sieve/polyethylene fiber composite material Example 20 AlPO.sub.4-11 molecular 100% 100% 100% 100% sieve/polyvinyl chloride fiber composite material Example 21 SAPO-31 molecular 90% 90% 90% 90% sieve/polyacrylonitrile fiber composite material Example 22 SAPO-34 molecular 100% 100% 100% 100% sieve/viscose fiber composite material Example 23 SAPO-11 molecular sieve/chitin 100% 100% 100% 100% fiber composite material Example 24 BAC-1 molecular sieve/chitin 100% 100% 100% 100% fiber composite material Example 25 BAC-3 molecular sieve/chitin 100% 100% 100% 100% fiber composite material Example 26 BAC-10 molecular sieve/chitin 99% 99% 99% 99% fiber composite material

TABLE-US-00003 TABLE 3 Effective specific surface area and ion exchange capacity of molecular sieves of different molecular sieve/fiber composite materials Effective specific Degree of Degree of Degree of Serial surface area of calcium magnesium Strontium number Material molecular sieves/(m.sup.2g.sup.1) ion exchange ion exchange ion exchange Example 1 Y-type molecular sieve/cotton fiber 490 99.9%.sup. 97% 90% composite material Example 2 Chabazite/cotton fiber composite 853 90.2%.sup. 92% 80% material Example 3 X-type molecular sieve/silk fiber 741 91% 81% 80% composite material Example 4 A-type molecular sieve/polyester 502 85% 77% 70% fiber composite material Example 5 ZSM-5 molecular 426 80% 77% 70% sieve/polypropylene fiber composite material Example 6 -molecular sieve/rayon fiber 763 95% 87% 85% composite material Example 7 Mordenite/acetate fiber composite 412 95% 87% 85% material Example 8 L-type molecular 858 85% 81% 80% sieve/carboxymethyl cellulose composite material Example 9 P-type molecular sieve/bamboo 751 91% 90% 85% fiber composite material Example 10 Merlinoite/linen fiber composite 510 98.5%.sup. 97% 90% material compound Example 11 X-type molecular sieve/wool 494 98% 97% 91% composite material Example 12 X-type molecular sieve/wood fiber 492 99% 97% 93% composite material Example 13 X-type molecular sieve/lactide 496 98.9%.sup. 97% 90% polymer fiber composite material Example 14 X-type molecular sieve/glycolide 480 97% 97% 91% polymer fiber composite material Example 15 X-type molecular sieve/polylactide- 499 99.7%.sup. 95% 87% glycolide polymer fiber composite material Example 16 X-type molecular sieve/polyamide 495 95% 94% 90% fiber composite material Example 17 X-type molecular sieve/rayon- 846 91.2%.sup. 90% 83% polyester fiber composite material Example 18 X-type molecular sieve/chitin fiber 751 91% 90% 85% composite material Example 19 AlPO.sub.4-5 molecular 426 sieve/polyethylene fiber composite material Example 20 AlPO.sub.4-11 molecular 763 sieve/polyvinyl chloride fiber composite material Example 21 SAPO-31 molecular 412 sieve/polyacrylonitrile fiber composite material Example 22 SAPO-34 molecular sieve/viscose 858 fiber composite material Example 23 SAPO-11 molecular sieve/chitin 510 fiber composite material Example 24 BAC-1 molecular sieve/chitin fiber 494 composite material Example 25 BAC-3 molecular sieve/chitin fiber 492 composite material Example 26 BAC-10 molecular sieve/chitin 496 fiber composite material

TABLE-US-00004 TABLE 4 Hemostatic function of different hemostatic materials Rising Serial Hemostatic Hemostatic temperature of Blood loss Debridement Wound Survival number material time wound ( C.) (g) Ease of use effect condition rate Example 1 Y-type 2 min No .sup.4 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/cotton and practical other healed fiber needs removal composite required material Example 2 Chabazite/cotton 1.8 min No .sup.3 0.5 Tailored for Easy to Dry 100% fiber wound size remove, no and well composite and practical other healed material needs removal required Example 3 X-type 1.8 min No .sup.3 0.4 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/silk fiber and practical other healed composite needs removal material required Example 4 A-type 2 min No .sup.3 0.8 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polyester and practical other healed fiber needs removal composite required material Example 5 ZSM-5 2.5 min No .sup.4 0.8 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polypropylene and practical other healed fiber needs removal composite required material Example 6 -molecular 2 min No .sup.3 0.8 Tailored for Easy to Dry 100% sieve/rayon wound size remove, no and well fiber and practical other healed composite needs removal material required Example 7 Mordenite/acetate 2.1 min No 3.5 0.4 Tailored for Easy to Dry 100% fiber wound size remove, no and well composite and practical other healed material needs removal required Example 8 L-type 2.7 min No 4.2 0.4 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/carboxy and practical other healed methyl needs removal cellulose required composite material Example 9 P-type 2.4 min No 4.3 0.7 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/bamboo and practical other healed fiber needs removal composite required material Example 10 Merlinoite/linen 2.4 min No 4.3 0.7 Tailored for Easy to Dry 100% fiber wound size remove, no and well composite and practical other healed material needs removal required Example 11 X-type 2 min No .sup.4 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/wool and practical other healed composite needs removal material required Example 12 X-type 2.1 min No .sup.4 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/wood and practical other healed fiber needs removal composite required material Example 13 X-type 2.4 min No 4.3 0.3 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/lactide and practical other healed polymer fiber needs removal composite required material Example 14 X-type 2.1 min No 3.5 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/glycolide and practical other healed polymer fiber needs removal composite required material Example 15 X-type 2.3 min No 3.8 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polylactide- and practical other healed glycolide needs removal polymer fiber required composite material Example 16 X-type 2.5 min No 4.2 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polyamide and practical other healed fiber needs removal composite required material Example 17 X-type 2.4 min No 4.4 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/rayon- and practical other healed poly ester fiber needs removal composite required material Example 18 X-type 2 min No .sup.3 0.8 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/chitin and practical other healed fiber needs removal composite required material Example 19 AlPO.sub.4-5 2 min No .sup.3 0.8 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polyethylene and practical other healed fiber needs removal composite required material Example 20 AlPO.sub.4-11 2.1 min No 3.5 0.4 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/polyvinyl and practical other healed chloride fiber needs removal composite required material Example 21 SAPO-31 2.1 min No 3.2 0.4 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/ and practical other healed polyacrylonitrile needs removal fiber composite required material Example 22 SAPO-34 2.4 min No .sup.4 0.7 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/viscose and practical other healed fiber needs removal composite required material Example 23 SAPO-11 2.5 min No 4.2 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/chitin and practical other healed fiber needs removal composite required material Example 24 BAC-1 2.4 min No 4.4 0.5 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/chitin and practical other healed fiber needs removal composite required material Example 25 BAC-3 2 min No .sup.3 0.8 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/chitin and practical other healed fiber needs removal composite required material Example 26 BAC-10 2.4 min No 3.4 0.1 Tailored for Easy to Dry 100% molecular wound size remove, no and well sieve/chitin and practical other healed fiber needs removal composite required material Comparative Y-type 5.4 min 2 1 7.4 0.1 Tailored for Part of the A large 60% Example 2 molecular wound size molecular blood clot sieve/cotton and practical sieves fall forms on the fiber complex needs from the surface of material fiber and the wound, (impregnation stick to the which is method) wound, making generally them difficult healed to remove Comparative Y-type 5.2 min 3 1 7.6 0.1 Tailored for Part of the A large 55% Example 3 molecular wound size molecular blood clot sieve/cotton and practical sieves fall forms on the fiber complex needs from the surface of material (spray fiber and the wound, method) stick to the which is wound, making generally them difficult healed to remove Comparative Y-type 6.2 min 7 1 5.5 0.2 Tailored for Part of the A large 65% Example 4 molecular wound size molecular blood clot sieve/cotton and practical sieves fall forms on the fiber complex needs from the surface of material fiber and the wound, (including stick to the which is adhesive 1) wound, making generally them difficult healed to remove Comparative Y-type 5.4 min 4 1 8.5 0.2 Tailored for Part of the A large 45% Example 5 molecular wound size molecular blood clot sieve/cotton and practical sieves fall forms on the fiber complex needs from the surface of material fiber and the wound, (including stick to the which is adhesive 2) wound, making generally them difficult healed to remove Comparative Y-type 6 min 2 1 7.5 0.1 Tailored for Part of the A large 40% Example 6 molecular wound size molecular blood clot sieve/cotton and practical sieves fall forms on the fiber complex needs from the surface of material fiber and the wound, (including stick to the which is adhesive 3) wound, making generally them difficult healed to remove Comparative Y-type 6.5 min 2 1 7.1 0.1 hard and Part of the A large 45% Example 7 molecular brittle, molecular blood clot sieve/cotton and does sieves fall forms on the fiber complex not make from the surface of material good fiber and the wound, (pretreatment contact stick to the which is of fiber) with the wound, making generally wound them difficult healed to remove Comparative Y-type 5.4 min No 9.1 0.1 Tailored for Easy to A large 40% Example 8 molecular wound size remove, no blood clot sieve/spandex and practical other forms on the fiber complex needs removal surface of material (blend required the wound, spinning) which is generally healed Comparative Quikclot 3 min 10 2 6.5 0.9 Difficult The The 50% Example 10 molecular to granules wound with sieve granule adjust need to be slight bums dosage washed was washed by several physiological times with saline, and physiological it was easy saline, to rebleed. and can plug in blood vessels Comparative Combat Gauze 7.5 min No 12.7 0.8 Tailored for Part of the A large 40% Example 11 (Clay/fiber wound size clay falls off blood clot complex and practical the fibers. forms on the material) needs Due to the wound surface, large making it amount of difficult bleeding, a to observe large area of the actual blood clot is blood vessel formed on the healing wound surface, which adheres to the wound surface and is easy to rebleed when cleared.

[0341] The above results show that: Examples 1-26 list the synthesis of molecular sieves/fiber composite material with different molecular sieves and different fibers, and the molecular sieves of synthesized molecular sieves/fiber composite materials are uniformly distributed on the fiber surface of the fibers in a suitable size, so that the overall performance of the composite material remains consistent. And the inner surface of the molecular sieves of the molecular sieve/fiber composite materials of Examples 1-26 in contact with the fibers is a rough planar surface. Ultrasound the molecular sieve/fiber composite materials in deionized water for 20 min, and use a thermogravimetric analyzer to analyze the content of molecular sieves on the fiber surface. The retention rate of molecular sieves is 90%, indicating that a growth-matched coupling is formed between the molecular sieve and the fiber. The molecular sieve is firmly bonded to the fiber. The adhesive content of the contact surface between the molecular sieve and the fiber is zero in Examples 1-26 of the present disclosure, and the degree of calcium ion exchange of the molecular sieve is 90%, the degree of magnesium ion exchange is 75%, and the degree of strontium ion exchange is 70%. It overcomes the defects of high synthetic cost, low effective surface area of molecular sieve, and clogging of molecular sieve channels, which exist on the composite materials through the adhesive. In addition, the molecular sieves are independently dispersed on the fiber surface to promote the uniform distribution of the molecular sieves on the fiber surface. The inner surface of the molecular sieves is composed of nanoparticles without corner angles. The nanoparticles without corner angles make the inner surface of the molecular sieves match the fiber surface better, which is beneficial to the combination of the molecular sieve and the fiber. The method for synthesizing molecular sieve/fiber composite materials does not include a templating agent, and the molecular sieve is a mesoporous molecular sieve. The method has the characteristics of low cost, simple process, and environmental friendliness.

[0342] The present disclosure also provides a hemostatic material of molecular sieve/fiber composite material. Although the hemostatic material of molecular sieve/fiber composite material has a reduced amount of molecular sieve compared with the molecular sieve granules, the hemostatic effect of the molecular sieve/fiber composite material is better than the commercial molecular sieve granules (Quikclot), which further solves the problem of water absorption and heat release. The molecular sieves of the present disclosure are uniformly distributed on the fiber surface with a certain size, and a growth-matched coupling is formed between the molecular sieve and the fiber. The molecular sieve has a strong binding strength with the fiber. The molecular sieve has a high effective specific surface area and substance exchange capacity on the fiber surface. The hemostatic effect of hemostatic materials of the present disclosure is superior to that of composite materials with weak binding strength between molecular sieves and fiber or low effective specific surface area or low material exchange capacity in the prior art. The molecular sieve/fiber composite materials have a short hemostatic time, low blood loss, and high survival rate in the rabbit femoral artery lethal model, and the molecular sieve/fiber composite materials are safe during hemostatic process. In addition, the molecular sieve/fiber composite materials also have the following advantages: (i) the wound surface after hemostasis is easy to clean up and convenient for post-processing by professionals; (ii) the molecular sieve/fiber composite materials can be tailored for wound size and practical needs; (iii) the wound after hemostasis is dry and heals well after treated with the molecular sieve/fiber composite materials.

[0343] The above embodiments are only used to illustrate the present disclosure and are not used to limit the scope of the present disclosure. In addition, it should be understood that after reading the teaching of the present disclosure, those skilled in the art can make various changes or modifications to the present disclosure, and these equivalent also fall within the scope defined by the appended claims of the present application.