Super-hydrophobic fabric and preparation method thereof

Abstract

The present invention provides super-hydrophobic fabrics and a preparation method thereof, and belong to the field of textiles. The super-hydrophobic fabrics are obtained by finishing Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. Via a one-step finishing method using Pickering emulsion technology, facile preparation of durable super-hydrophobic fabrics is realized. The static contact angle between the finished fabric surfaces and water droplets is greater than 150 degrees, and the water droplets can roll off easily; and after being subjected to 30 times of standard washing tests, the finished fabrics still maintains excellent water repellency. In addition, the Pickering emulsion preparation and finishing process of the present invention are environmentally friendly, pollution-free, facile to operate and widely applicable.

Claims

1. A method for preparing durable super-hydrophobic fabrics through a facile method by using Pickering emulsion technology, comprising: amphiphilic particles stabilizing low-surface-energy substances in water to form Pickering emulsion, finishing a textile through the facile method by using the Pickering emulsion, and drying the textile to obtain a super-hydrophobic fabric, wherein the step of drying comprises pre-curing the fabric for 1-3 min at the temperature of 60-80° C. and curing the fabric for 1-3 min at the temperature of 120-160° C., or drying the fabric for 30-60 min at the temperature of 120-150° C., wherein the low-surface-energy substances are at least one of silicone oil, long-chain alkane compounds with carbon atom number n≥16 and perfluoroalkyl compounds with carbon atom number n≤6, wherein the total concentration of amphiphilic particles and low-surface-energy substances in the Pickering emulsion is 0-300 mg/mL, but not 0; wherein the mass ratio of amphiphilic particles to low-surface-energy substances in the Pickering emulsion is 1:0-30; but not 0, wherein when the low-surface-energy substances is the silicone oil, the total concentration of the amphiphilic particles and the low-surface-energy substances is 80-120 mg/ml, and the mass ratio of the amphiphilic nanoparticles to the low-surface-energy substances is 1:0.5-5.

2. The method for preparing the durable super-hydrophobic fabric through the facile method by using the Pickering emulsion technology according to claim 1, wherein the Pickering emulsion is oil-in-water type emulsion.

3. The method for preparing the durable super-hydrophobic fabric through the facile method by using the Pickering emulsion technology according to claim 1, wherein the amphiphilic particles are at least one of amphiphilic silicon dioxide, amphiphilic graphene oxide, amphiphilic graphene, amphiphilic carbon nanotubes, amphiphilic calcium carbonate, amphiphilic ferroferric oxide, microcrystalline celluloses, microcrystalline lignin and starch nanocrystals.

4. The method for preparing the durable super-hydrophobic fabric through the facile method by using the Pickering emulsion technology according to claim 1, wherein the textile is cellulosic fiber fabrics, polyester fiber fabrics, nylon, acrylic fiber fabrics, acetate fiber fabrics, wool fiber fabrics or blended fabrics from at least two kinds of the above-mentioned fabrics.

5. The method for preparing the durable super-hydrophobic fabric through the facile method by using the Pickering emulsion technology according to claim 1, wherein the finishing method is a padding method, a dipping method, a coating method or a spraying method.

6. The method for preparing the durable super-hydrophobic fabric through the facile method by using the Pickering emulsion technology according to claim 1, wherein the emulsifying method comprises homogenizing dispersion, cell smashing or ultrasonic dispersion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is a schematic diagram of preparing a durable super-hydrophobic fabric through a one-step method utilizing Pickering emulsion technology.

(2) FIGS. 2A and 2B are respectively a diagram of hydrophobicity of a finished fabric in an embodiment 1 and an embodiment 2 of the present invention exposed to different liquids before standard washing.

(3) FIGS. 3A and 3B are respectively a diagram of hydrophobicity of the finished fabric in the embodiment 1 and the embodiment 2 of the present invention exposed to different liquids after 30 times standard washing cycles.

DESCRIPTION OF THE EMBODIMENTS

(4) The present invention is further described below with reference to specific embodiments. It should be understood that these embodiments are used for construing the present invention only, but not limiting its scope. In addition, it should be understood that after reading contents described in the present invention, those skilled in the art can make various modifications or variations based on the present invention, and these equivalents are also within the scope defined by the appended claims of the present application.

(5) In the present invention, the static contact angle testing is carried out by a pendant-drop method with a KRUSS GmbH DSA30 drop shape analyzer (German). The volume of water droplets is 5 μL.

Embodiment 1

(6) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(7) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(8) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:1, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(9) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(10) curing: the above finished bleached cotton woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(11) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 155 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 153 degrees.

(12) In the embodiment, the lyophobic effect of the cotton fabric subjected to conventional padding finishing is as shown in FIG. 2A, the finished cotton fabric exhibits excellent hydrophobicity towards deionized water, red dye liquor, fruit juice, coca-cola, tea, coffee and milk liquid droplets, and the liquid droplets sit spherically on the finished fabric, and can roll off easily.

(13) The durable and lyophobic effect of the cotton fabric subjected to conventional padding finishing in the embodiment is as shown in FIG. 3A, after being washed for 30 times according to the ISO 105-C10: 2007 testing method, the finished cotton fabric still exhibits excellent hydrophobicity on deionized water, red dye liquor, fruit juice, coca-cola, tea, coffee and milk liquid droplets, and the liquid droplets sit spherically on the finished fabric, and can roll off easily.

Embodiment 2

(14) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(15) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(16) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 120 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:1, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(17) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(18) curing: the above polyester fiber woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(19) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 152 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle is 150 degrees.

(20) In the embodiment, the lyophobic effect of the polyester fiber woven fabric subjected to conventional padding finishing is as shown in FIG. 2B, the finished polyester fiber woven fabric exhibits excellent hydrophobicity towards deionized water, red dye liquor, fruit juice, coca-cola, tea, coffee and milk liquid droplets, and the liquid droplets sit spherically on the finished fabric, and can roll off easily.

(21) The durable and lyophobic properties of the polyester fiber woven fabric subjected to conventional padding finishing in the embodiment is as shown in FIG. 3B, after being washed for 30 times according to the ISO 105-C10: 2007 testing method, the finished polyester fiber woven fabric still exhibits excellent hydrophobicity on deionized water, red dye liquor, fruit juice, coca-cola, tea, coffee and milk liquid drops, and the liquid droplets sit spherically on the finished fabric, and can roll off easily.

Embodiment 3

(22) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(23) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(24) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through a ultrasonic homogenizer. The total concentration of amphiphilic nanoparticles and low-surface-energy substance in the prepared Pickering emulsion is 120 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:2, the ultrasonication power is 540 W, and the emulsifying time is 3 min.

(25) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(26) curing: the bleached cotton woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(27) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 155 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 154 degrees.

Embodiment 4

(28) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(29) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(30) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through a ultrasonic homogenizer. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 120 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:2, the ultrasonication power is 540 W, and the emulsifying time is 3 min.

(31) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is subjected to conventional two-dipping and two-rolling finishing by the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(32) curing: the above polyester fiber woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(33) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 150 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 148 degrees.

Embodiment 5

(34) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(35) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(36) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:2, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(37) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is dipped in the stable oil-in-water type Pickering emulsion for 10 min at room temperature, and then is taken out; and

(38) drying: the bleached cotton woven fabric is dried for 30 min at the temperature of 135° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(39) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 156 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 153 degrees.

Embodiment 6

(40) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(41) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(42) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the emulsion is 120 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:2, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(43) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is dipped in the stable oil-in-water type Pickering emulsion for 10 min at room temperature, and then is taken out; and

(44) drying: the polyester fiber woven fabric is dried for 30 min at the temperature of 135° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(45) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 154 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 150 degrees.

Embodiment 7

(46) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances and water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(47) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(48) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through a ultrasonic homogenizer. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:2, the ultrasonication power is 540 W, and the emulsifying time is 3 min.

(49) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is dipped in the stable oil-in-water type Pickering emulsion for 10 min at room temperature, and then is taken out; and

(50) drying: the bleached cotton woven fabric is dried for 30 min at the temperature of 135° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(51) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 154 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 151 degrees.

Embodiment 8

(52) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(53) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(54) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through a ultrasonic homogenizer. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 120 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:5, the ultrasonication power is 540 W, and the emulsifying time is 3 min.

(55) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is dipped in the stable oil-in-water type Pickering emulsion for 10 min at room temperature, and then is taken out; and

(56) drying: the polyester fiber woven fabric is dried for 30 min at the temperature of 135° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(57) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 154 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 150 degrees.

Embodiment 9

(58) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(59) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(60) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), a low-surface-energy substance perfluoroalkyl compound (1H, 1H, 2H, 2H-perfluorooctyl trimethoxysilane, China Hangzhou Hete Chemical Technology Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:30, the rotating speed of a homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(61) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(62) curing: the bleached cotton woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(63) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 160 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 158 degrees.

Embodiment 10

(64) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(65) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(66) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic silicon dioxide particles (Bindzil CC40, Sweden Eka chemicals company), a low-surface-energy substance long-chain alkane compound (n-hexadecane, China Shanghai Sinopharm Chemical Reagent Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 300 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:10, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(67) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(68) curing: the polyester fiber woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 120° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(69) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 150 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 148 degrees.

Embodiment 11

(70) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(71) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(72) the low-surface-energy substance are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic ferroferric oxide particles (PuriMag200 Si-Epoxy, China Xiamen PuriMag Bead Biotechnology Co., Ltd.), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:1, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(73) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(74) curing: the bleached cotton woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(75) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 153 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 150 degrees.

Embodiment 12

(76) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(77) A method for preparing the durable super-hydrophobic fabric through a one-step method by a Pickering emulsion technology includes:

(78) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic microcrystalline celluloses (CNC-C, China Guangxi Guilin Qihong Keji Co., Ltd.), a low-surface-energy substance perfluoroalkyl compound (1H, 1H, 2H, 2H-perfluorooctyl trimethoxysilane, China Hangzhou Hete Chemical Technology Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 300 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:0.5, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(79) A textile is finished by the Pickering emulsion through the one-step method: a bleached cotton woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(80) curing: the bleached cotton woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 160° C. to obtain a durable super-hydrophobic bleached cotton woven fabric.

(81) A static contact angle between the durable super-hydrophobic bleached cotton woven fabric and water droplets is 152 degrees, and after the durable super-hydrophobic bleached cotton woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 149 degrees.

Embodiment 13

(82) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(83) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(84) the low-surface-energy substance are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic graphene oxide water-based dispersion liquid (XF020, China Nanjing Xianfeng Nano-Material Technology Co., Ltd.), low-surface-energy substance silicone oil (PDMS 4000, China Shanghai Momentive Organosilicon Material Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through homogenizing dispersion. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:0.5, the rotating speed of the homogenizer is 15,000 rpm, and the emulsifying time is 5 min.

(85) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is dipped in the stable oil-in-water type Pickering emulsion for 10 min at room temperature, and then is taken out; and

(86) drying: the polyester fiber woven fabric is dried for 30 min at the temperature of 135° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(87) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 150 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 144 degrees.

Embodiment 14

(88) A super-hydrophobic fabric is obtained by finishing through Pickering emulsion formed by amphiphilic particles stabilizing low-surface-energy substances in water. As shown in FIG. 1, the Pickering emulsion includes a water phase 1 and an oil phase, the oil phase is a low-surface-energy substance 2, and the amphiphilic particles 3 encapsulate the low-surface-energy substance 2.

(89) A method for preparing the durable super-hydrophobic fabric through a one-step method by Pickering emulsion technology includes:

(90) the low-surface-energy substances are emulsified in water by amphiphilic particles to form stable oil-in-water type Pickering emulsions: amphiphilic calcium carbonate particles (VK-CaC112-1, China Hangzhou Weking New Material Co., Ltd.), a low-surface-energy substance long-chain alkane compound (n-hexadecane, China Shanghai Sinopharm Chemical Reagent Co., Ltd.) and water are mixed, and are emulsified to form oil-in-water type Pickering emulsion through a ultrasonic homogenizer. The total concentration of amphiphilic particles and low-surface-energy substance in the prepared Pickering emulsion is 80 mg/mL, the mass ratio of amphiphilic particles to low-surface-energy substance is 1:5, the ultrasonication power is 540 W, and the emulsifying time is 3 min.

(91) A textile is finished by the Pickering emulsion through the one-step method: a polyester fiber woven fabric is subjected to conventional two-dipping and two-rolling finishing by using the stable oil-in-water type Pickering emulsion, and the pick-up ratio is 70%; and

(92) curing: the polyester fiber woven fabric is pre-cured for 3 min at the temperature of 80° C., and is cured for 3 min at the temperature of 120° C. to obtain a durable super-hydrophobic polyester fiber woven fabric.

(93) A static contact angle between the durable super-hydrophobic polyester fiber woven fabric and water droplets is 150 degrees, and after the durable super-hydrophobic polyester fiber woven fabric is washed for 30 times according to the ISO 105-C10: 2007 testing method, the static contact angle still reaches up to 147 degrees.