Inorganic fiber toughened inorganic composite artificial stone panel and preparation method thereof

Abstract

An inorganic fiber toughened inorganic composite artificial stone panel and a preparation method thereof are disclosed. The panel includes a surface layer and a toughened base layer. The surface layer includes the the following components in parts by weight: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of inorganic active powder, 0.5-4 parts of pigment, 0.3-1 parts of water reducing agent and 3-10 parts of water. The toughened base layer includes the following components in parts by weight: 40-60 parts of inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of water reducing agent, 6-14 parts of water, 0.4-2 parts of inorganic fiber and 0.8-2.5 parts of toughener.

Claims

1. An inorganic fiber toughened inorganic composite artificial stone panel, comprising a surface layer and a toughened base layer, wherein the surface layer includes materials having the following components in parts by weight: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of an inorganic active powder, 0.5-4 parts of a pigment, 0.3-1 parts of a water reducing agent and 3-10 parts of water, wherein the toughened base layer includes materials having the following components in parts by weight: 40-60 parts of the inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of the water reducing agent, 6-14 parts of water, 0.4-2 parts of an inorganic fiber and 0.8-2.5 parts of a toughener, and wherein the inorganic active powder is mainly composed of pure white Portland cement doped with an active powder, the pure white Portland cement has a strength grade of more than 42.5, and the active powder is at least one selected from the group consisting of white silicon powder, mineral powder, nano calcium oxide, nano silicon oxide, and sintered high white kaolin powder.

2. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, the quartz sand has a fineness modulus of 2.0-3.0, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

3. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, the quartz powder has a fineness of 600 mesh or more, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

4. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, wherein the sand is selected from one or more of river sand, manufactured sand and the quartz sand.

5. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, wherein the inorganic fiber is selected from one or more of glass fiber, carbon fiber, basalt fiber, boron fiber, ceramic fiber and alumina fiber which have a diameter of 0.02-0.08 mm, a length of 6-12 mm and a tensile strength of more than 1,000 MPa.

6. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, wherein the toughener is selected from one or more of polyvinyl alcohol glue and acrylamide glue.

7. The inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, wherein a total thickness of the panel is 15-50 mm, and a thickness of the surface layer is 4-6 mm.

8. A preparation method of the inorganic fiber toughened inorganic composite artificial stone panel according to claim 1, comprising the steps of: S1) uniformly stirring and mixing first raw materials and second raw materials, respectively, according to the predetermined ratio to obtain a first mixed material and a second mixed material, wherein the first raw materials are used for the surface layer and second raw materials are used for the toughened base layer; S2) preparing a panel mold, calculating and weighing the first mixed material prepared in step S1 according to a thickness of the surface layer and uniformly arranging the first mixed material in the panel mold, then calculating and weighing the second mixed material prepared in step S1 according to a thickness of the toughened base layer and uniformly arranging the second mixed material on the first mixed material in the panel mold; S3) covering an isolated moisturizing film on the second mixed material in the panel mold of step S2, and then putting the panel mold into a vacuum compressor to concurrently perform a vacuum exhaust and a vibrating compression to obtain a compressed plate; S4) curing the compressed plate obtained in step S3 at a temperature of 40° C. for 6 to 8 hours, then heating the compressed plate to 80-90° C. and curing the compressed plate at 80-90° C. for 12-16 hours, and obtaining a rough plate; and S5) performing a bottom scraping, a thickening and a polishing on the rough plate obtained in step S4 after removing the isolation moisturizing film to obtain the inorganic fiber toughened inorganic composite artificial stone panel.

9. The preparation method according to claim 8, wherein in step S1, time for stirring and mixing the first raw materials and second raw materials is not less than 10 minutes, respectively; Vebe consistency testing time of the first mixed material and the second mixed material is 5-30 seconds, respectively; and the initial setting time of the first mixed material and the second mixed material after the stirring and mixing is not less than 60 minutes.

10. The preparation method according to claim 8, wherein in step S3, time for the vacuum exhaust is not less than 60 seconds, time for the vibrating compression is not less than 120 seconds; and a vacuum pressure for the vacuum exhaust is −0.07-0.1 MPa, a pressure load of the vacuum compressor is not less than 1 MPa, and a pressure of the vacuum compressor is not less than 5000 kN.

11. The preparation method according to claim 8, wherein in step S4, a humidity is kept above 75% during the curing at 80-90° C.

12. The preparation method according to claim 8, the quartz sand has a fineness modulus of 2.0-3.0, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

13. The preparation method according to claim 8, the quartz powder has a fineness of 600 mesh or more, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

14. The preparation method according to claim 8, wherein the sand is selected from one or more of river sand, manufactured sand and the quartz sand.

15. The preparation method of the inorganic fiber toughened according to claim 8, the inorganic fiber is selected from one or more of glass fiber, carbon fiber, basalt fiber, boron fiber, ceramic fiber and alumina fiber which have a diameter of 0.02-0.08 mm, a length of 6-12 mm and a tensile strength of more than 1,000 MPa.

16. The preparation method of the inorganic fiber toughened according to claim 8, wherein the toughener is selected from one or more of polyvinyl alcohol glue and acrylamide glue.

17. The preparation method of the inorganic fiber toughened according to claim 8, wherein a total thickness of the panel is 15-50 mm, and a thickness of the surface layer is 4-6 mm.

18. An inorganic fiber toughened inorganic composite artificial stone panel, comprising a surface layer and a toughened base layer, wherein the surface layer includes materials having the following components in parts by weight: 40-70 parts of quartz sand, 10-30 parts of quartz powder, 20-45 parts of an inorganic active powder, 0.5-4 parts of a pigment, 0.3-1 parts of water reducing agent and 3-10 parts of water, wherein the toughened base layer includes materials having the following components in parts by weight: 40-60 parts of the inorganic active powder, 45-65 parts of sand, 0.8-1.5 parts of the water reducing agent, 6-14 parts of water, 0.4-2 parts of an inorganic fiber and 0.8-2.5 parts of a toughener, and wherein the quartz powder has a fineness of 600 mesh or more, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

19. The inorganic fiber toughened according to claim 18, the quartz sand has a fineness modulus of 2.0-3.0, a content of silicon dioxide above 93%, and a hardness of a raw stone above 7.

20. The inorganic fiber toughened according to claim 18, wherein a total thickness of the panel is 15-50 mm, and a thickness of the surface layer is 4-6 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The Sole FIGURE is a schematic diagram showing a structure of an inorganic fiber toughened inorganic composite artificial stone panel.

(2) Illustration of reference signs: surface layer 100 and toughened base layer 200.

EMBODIMENTS

(3) The drawings are for illustration purpose only and are not intended to limit the present invention. Some components in the drawings are omitted, enlarged or reduced for better illustrating the embodiments, and sizes of these components do not represent that of actual products. For those skilled in the art, it will be understood that some known structures in the drawings and descriptions thereof may be omitted. The description of positional relationship in the drawings is for illustration purpose only and is not intended to limit the present invention. The present invention will be further illustrated below with reference to specific embodiments.

Embodiment 1

(4) As shown in the sole FIGURE, the overall thickness (t1+t2) of an inorganic fiber toughened inorganic composite artificial stone panel is 15 to 50 mm, including a surface layer with a thickness t1 of 4 to 6 mm and a toughened base layer with a thickness t2, in which the surface layer includes materials having the following components in parts by weight: quartz sand of 40 parts by weight, quartz powder of 10 parts by weight, inorganic active powder of 20 parts by weight, pigment of 0.5 part by weight, water reducing agent of 0.3 part by weight and water of 3 parts by weight; and the toughened base layer includes materials having the following components in parts by weight: inorganic active powder of 40 parts by weight, sand of 45 parts by weight, water reducing agent of 0.8 part by weight, water of 6 parts by weight, inorganic fiber of 0.4 part by weight and toughener of 0.8 part by weight.

(5) The fineness modulus of the quartz sand is 2.3 (the fineness modulus of the quartz sand can be 2.0 to 3.0, and Embodiment 1 chooses 2.3), the silicon dioxide content is more than 93%, no impurity and weathering is contained, and the hardness of the raw stone is above 7.

(6) The fineness of the quartz powder is more than 600 meshes, the silicon dioxide content is more than 93%, and the hardness of the raw stone is above 7.

(7) The inorganic active powder takes white cement of P.O 42.5 as the main body mixed with white silicon powder (one or more active powders among white silicon powder, mineral powder, nano calcium oxide, nano silicon dioxide and sintered high white kaolin clay powder can be added herein).

(8) The pigment is inorganic pigment in all colors.

(9) The water reducing agent is free of metal ion color and has a concentration of no more than 20%, the water reducing rate is more than 20%, and the retarding time is 0.5 to 1 hour.

(10) The sand is river sand (can be selected from one or more of river sand, manufactured sand and quartz sand), and requires that no mud, mud block and organic shellfish is contained. The solid mass loss of material is no more than 8%, the maximum particle diameter is no more than 2.5 mm, and the fineness modulus is 2.6.

(11) The inorganic fiber is basalt fiber having a diameter of 0.02 mm, a length of 6 mm and a tensile strength of more than 1,000 MPa (the inorganic fiber is selected from one or more of glass fiber, carbon fiber, basalt fiber, boron fiber, ceramic fiber and alumina fiber which have a diameter of 0.02 to 0.08 mm, a length of 6 to 12 mm and a tensile strength of more than 1,000 MPa).

(12) The toughener is polyvinyl alcohol glue and acrylamide glue.

(13) The preparation method of the inorganic fiber toughened inorganic composite artificial stone panel includes the following steps:

(14) S1, uniformly stirring and mixing the raw materials used for the surface layer and the toughened base layer respectively for no less than 10 minutes, the Vebe consistency testing time of the working performance of the stirring material is 5 to 30 seconds, and the initial setting time after stirring and mixing is no less than 60 minutes to obtain a mixture of all layers for later use;

(15) S2, preparing a panel mold, calculating according to thickness and measuring the surface layer mixture prepared in step S1 and uniformly distributing the mixture in the panel mold, calculating according to the thickness and measuring the toughened base layer mixture prepared in step S1 and uniformly distributing the mixture on the surface layer mixture in the panel mold;

(16) S3, covering an isolated moisturizing film on the toughened base layer mixture in the panel mold of step S2, then putting the panel mold into a vacuum compressor to concurrently perform a vacuum exhaust and a vibrating compression to obtain a compressed plate. time for the vacuum exhaust is not less than 60 seconds, time for the vibrating compression is not less than 120 seconds; and the vacuum pressure is −0.07 to −0.1 MPa, the pressure load of the compressor is no less than 1 MPa, and the pressure is no less than 5,000 kN;

(17) S4, curing compressed plate obtained in step S3 at 40° C. for 6 to 8 hours, then heating compressed plate to 80 to 90° C. and curing the compressed plate at 80-90° C. for 12-16 hours, and obtaining a rough plate, and the humidity is kept above 75% during the curing; and

(18) S5, performing a bottom scraping, a thickening and a polishing on the rough plate obtained in step S4 after removing the isolation moisturizing film to obtain the inorganic fiber toughened inorganic composite artificial stone panel.

Embodiment 2

(19) Other conditions are the same as in Embodiment 1 except that the formula of the inorganic fiber toughened inorganic composite artificial stone panel is different.

(20) The inorganic fiber toughened inorganic composite artificial stone panel includes the following materials in parts by weight. The surface layer includes materials having the following components in parts by weight: quartz sand of 70 parts by weight, quartz powder of 30 parts by weight, inorganic active powder of 45 parts by weight, pigment of 4 parts by weight, water reducing agent of 1 part by weight and water of 10 parts by weight; and the toughened base layer includes materials having the following components in parts by weight: inorganic active powder of 60 parts by weight, sand of 65 parts by weight, water reducing agent of 1.5 parts by weight, water of 14 parts by weight, inorganic fiber of 2 parts by weight and toughener of 2.5 parts by weight.

Embodiment 3

(21) Other conditions are the same as in Embodiment 1 except that the formula of the inorganic fiber toughened inorganic composite artificial stone panel is different.

(22) The inorganic fiber toughened inorganic composite artificial stone panel includes the following materials in parts by weight. The surface layer includes materials having the following components in parts by weight: quartz sand of 50 parts by weight, quartz powder of 15 parts by weight, inorganic active powder of 26 parts by weight, pigment of 1.5 parts by weight, water reducing agent of 0.5 part by weight and water of 5 parts by weight; and the toughened base layer includes materials having the following components in parts by weight: inorganic active powder of 45 parts by weight, sand of 50 parts by weight, water reducing agent of 1 part by weight, water of 8 parts by weight, inorganic fiber of 0.8 part by weight and toughener of 1.2 parts by weight.

Embodiment 4

(23) Other conditions are the same as in Embodiment 1 except that the formula of the inorganic fiber toughened inorganic composite artificial stone panel is different.

(24) The inorganic fiber toughened inorganic composite artificial stone panel includes the following materials in parts by weight. The surface layer includes materials having the following components in parts by weight: quartz sand of 60 parts by weight, quartz powder of 25 parts by weight, inorganic active powder of 39 parts by weight, pigment of 3 parts by weight, water reducing agent of 0.8 part by weight and water of 8 parts by weight; and the toughened base layer includes materials having the following components in parts by weight: inorganic active powder of 55 parts by weight, sand of 60 parts by weight, water reducing agent of 1.3 parts by weight, water of 12 parts by weight, inorganic fiber of 1.6 parts by weight and toughener of 2.1 parts by weight.

Embodiment 5

(25) Other conditions are the same as in Embodiment 1 except that the formula of the inorganic fiber toughened inorganic composite artificial stone panel is different.

(26) The inorganic fiber toughened inorganic composite artificial stone panel includes the following materials in parts by weight. The surface layer includes materials having the following components in parts by weight: quartz sand of 55 parts by weight, quartz powder of 20 parts by weight, inorganic active powder of 32.5 parts by weight, pigment of 2.25 parts by weight, water reducing agent of 0.65 part by weight and water of 6.5 parts by weight; and the toughened base layer includes materials having the following components in parts by weight: inorganic active powder of 50 parts by weight, sand of 55 parts by weight, water reducing agent of 1.15 parts by weight, water of 10 parts by weight, inorganic fiber of 1.2 parts by weight and toughener of 1.65 parts by weight.

Comparative Example 1

(27) Other conditions are the same as in Embodiment 1 except that the toughened base layer does not contain toughener. Comparative Example 2

(28) Other conditions are the same as in Embodiment 1 except that the toughened base layer does not contain inorganic fiber.

Comparative Example 3

(29) Common resin artificial stone.

(30) The inorganic fiber toughened inorganic composite artificial stone panels prepared by the above Embodiments 1 to 5 and Comparative Examples 1 to 3 are manufactured into standard test pieces for performance testing, and the test results are shown in Table 1.

(31) TABLE-US-00001 TABLE 1 Performance detection results for inorganic decorative panels Stain Resistance Performance (16 hours after Abrasion dripping red Compressive Bending Impact Resistance wine, coffee, Strength Strength Resistance Mohs Performance rice vinegar and Items (MPa) (MPa) Performance Hardness (mm.sup.3) soy sauce) Embodiment 1 152.5 26.2 No 7 139 Scrubbable damage surface with small amount of residue Embodiment 2 156.1 27.5 No 8 116 Scrubbable damage surface with small amount of residue Embodiment 3 157.9 28.3 No 7 123 Scrubbable damage surface with small amount of residue Embodiment 4 159.5 29.1 No 8 116 Scrubbable damage surface with small amount of residue Embodiment 5 165.7 30.8 No 8 102 Scrubbable damage surface with no residue Comparative 135.1 17.9 Damage 7 139 Scrubbable Example 1 surface with small amount of residue Comparative 130.6 15.2 Damage 7 139 Scrubbable Example 2 surface with small amount of residue Comparative  80.9 16.5 Damage 4 462 Non-Scrubbable Example 3 Surface

(32) As seen from Table 1, the toughened base layer in Comparative Example 1 does not contain toughener, and, compared to Embodiment 1, all of the compressive strength, the bending strength and the impact resistance performance decreased while the mohs hardness, the abrasion resistance performance and the stain resistance performance were basically the same; the toughened base layer in Comparative Example 2 does not contain inorganic fiber, and, compared to Embodiment 1, all of the compressive strength, the bending strength and the impact resistance performance decreased while the mohs hardness, the abrasion resistance performance and the stain resistance performance were basically the same; and, compared to Embodiment 1, all of the compressive strength, the bending strength, the impact resistance performance, the mohs hardness, the abrasion resistance performance and the stain resistance performance of the common resin artificial stone in Comparative Example 3 decreased.

(33) Obviously, the above embodiments of the present invention are merely examples for clear illustration of the present invention, and are not intended to limit the implementations of the present invention. For those skilled in the art, modifications or changes in other forms can also be made on the basis of the above description. It is unnecessary and impossible to exhaust all implementations herein. Any modification, equivalent substitution, improvement or the like within the spirit and principle of the invention should be included in the scope of the claims of the present invention.