Quartz stone composition, and preparation method therefor and use thereof

Abstract

The present invention relates to a quartz stone composition. The composition comprises, in percentage by weight, 80-95% of a quartz filler, 4-15% of a resin, 0.1-5% of a stabilizer, 0.05-5% of a coloring agent, 0.05-5% of an initiator, and 0.05-5% of a coupling agent, wherein the granularity of the quartz filler is 6-1000 meshes, the glass transition temperature of the resin is not lower than 80°C, and the stabilizer consists of an antibacterial agent, a water repellent agent and a nanomaterial or a fiber material at a mass ratio of 1:(1-10):(3-20). The quartz stone composition of the present invention has good temperature difference damage resistance, water swelling and cracking resistance, weather resistance, and bacterial resistance.

Description

A quartz stone composition and its preparation method and application Technical Field

[0001] The present invention relates to the field of materials, and in particular to a quartz stone composition, a preparation method thereof and applications thereof. Background Art

[0002] Quartz slabs are composed of over 90% natural quartz and approximately 10% pigments, resins, and other additives for bonding and curing. Processed using a vacuum process, high-frequency vibration molding, and thermal curing, these slabs are hard and dense, offering unmatched resistance to wear, pressure, heat, corrosion, and penetration, making them increasingly popular. However, existing quartz slabs suffer from poor weather resistance and are susceptible to factors such as light, temperature, water, and bacteria. These factors can cause yellowing due to UV radiation, fracture due to temperature fluctuations, expansion and cracking due to water penetration or accumulation, and bacterial corrosion. Consequently, they are generally used indoors and are unsuitable for outdoor infrastructure, significantly limiting their application. Therefore, there is an urgent need to develop a more stable quartz slab to meet market demand.

[0003] Summary of the Invention

[0004] The present invention aims to provide a quartz stone composition, which contains, by weight percentage, 80-95% of a quartz filler, 4-15% of a resin, 0.1-5% of a stabilizer, 0.05-5% of a colorant, 0.05-5% of an initiator, and 0.05-5% of a coupling agent. The quartz filler has a particle size of 6-1000 mesh, the resin has a glass transition temperature of not less than 80°C, and the stabilizer comprises an antibacterial agent, a hydrophobic agent, and a nanomaterial or a fiber material in a mass ratio of 1:1-10:3-20.

[0005] In a preferred technical solution of the present invention, the silicon dioxide content in the quartz filler is greater than 99%, preferably greater than 99.5%.

[0006] In the preferred technical solution of the present invention, the weight ratio of 100-1000 mesh quartz filler to 6-100 mesh quartz filler is 0.5-5:1.

[0007] In a preferred technical solution of the present invention, the glass transition temperature of the resin is not lower than 100°C.

[0008] In a preferred technical solution of the present invention, the composition contains 10-15% of resin by weight.

[0009] In a preferred technical solution of the present invention, the resin is selected from resins without benzene rings and / or conjugated double bonds, preferably any one of petroleum resins, alkyd resins, acrylic resins, unsaturated polyester resins, polyether resins, polyester resins, or a combination thereof.

[0010] In the preferred technical solution of the present invention, the resin is ORCHEM TM Any one of 727 unsaturated polyester resin, SIL93BE-956 resin, and Brayton polyester resin, or a combination thereof.

[0011] In a preferred technical solution of the present invention, the stabilizer is composed of an antibacterial agent: a hydrophobic agent: a nanomaterial or a fiber material in a mass ratio of 1:1-2:5-10.

[0012] In a preferred technical solution of the present invention, the composition contains 0.3-3% of the stabilizer by weight.

[0013] In a preferred technical solution of the present invention, the nanomaterial is selected from any one of nano oxides, nano carbides, nano borides, and nano nitrides, or a combination thereof.

[0014] In a preferred technical solution of the present invention, the particle size of the nanomaterial is not higher than 500 nm.

[0015] In a preferred technical solution of the present invention, the fiber material is selected from any one of carbon fiber, glass fiber, and aramid fiber, or a combination thereof.

[0016] In a preferred technical solution of the present invention, the length of the fiber material is not less than 3 mm.

[0017] In the preferred technical solution of the present invention, the antibacterial agent is selected from any one of alcohol antibacterial agents, silver antibacterial agents, imidazole antibacterial agents, copper antibacterial agents, zinc antibacterial agents, aldehyde antibacterial agents, acylanilide antibacterial agents, thiazole antibacterial agents, ketone antibacterial agents, biguanide antibacterial agents, and phenolic antibacterial agents, or a combination thereof.

[0018] In the preferred technical solution of the present invention, the antibacterial agent is selected from phenoxyethanol

[0019] (PHE-SP10), Germall IS45, ZEOMIC AWION, or any combination thereof.

[0020] In a preferred technical solution of the present invention, the hydrophobic agent is selected from any one of an organosilicon hydrophobic agent, paraffin, a fluorocarbon polymer hydrophobic agent, and a fatty acid soap, or a combination thereof.

[0021] In a preferred technical solution of the present invention, the hydrophobic agent is selected from any one of Wacker BS4004, TEGO Phobe 1500N, paraffin, or a combination thereof.

[0022] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the colorant by weight.

[0023] In the preferred technical solution of the present invention, the colorant is selected from any one or a combination of iron oxide colorants, titanium oxide colorants, phthalocyanine colorants, azo colorants, and methylcalcein complexes, and is preferably selected from any one or a combination of titanium dioxide, phthalocyanine blue, and iron oxide red.

[0024] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the initiator by weight.

[0025] In a preferred technical solution of the present invention, the initiator is selected from any one of an azo initiator and a peroxide initiator, or a combination thereof.

[0026] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the coupling agent by weight.

[0027] In a preferred technical solution of the present invention, the coupling agent is selected from any one of a silane coupling agent, a titanate coupling agent, and an aluminate compound, or a combination thereof.

[0028] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 80-90% quartz filler, 8-15% resin, 0.1-5% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0029] In the preferred technical solution of the present invention, the composition contains 87.37% of quartz filler, ORCHEM TM 727 unsaturated polyester resin 11.65%, titanium dioxide 0.29%, silane coupling agent (KH-570) 0.1%, azobisisobutyronitrile 0.1%, Germall IS45 0.1%, TEGO Phobe 1500N 0.1% and nano-alumina 0.29%.

[0030] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 88.46% of quartz filler, 10.24% of SIL93BE-956 resin, 0.09% of phthalocyanine blue, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.09% of ZEOMIC AW10N, 0.2% of paraffin wax and 0.74% of glass fiber.

[0031] In a preferred technical solution of the present invention, the composition contains, by weight percentage, 87.72% of quartz filler, 11.08% of Brayton polyester resin, 0.09 parts of red iron oxide, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.09% of PHE-SP10, 0.1% of Wacker BS4004, and 0.74% of carbon fiber.

[0032] In a preferred technical solution of the present invention, the UV resistance test of the quartz stone composition is above level 4, preferably above level 5.

[0033] In a preferred technical solution of the present invention, the quartz stone composition does not turn yellow when placed outdoors for more than 2 years, preferably does not turn yellow when placed outdoors for more than 5 years.

[0034] In a preferred technical solution of the present invention, the quartz stone composition does not crack when placed outdoors for more than 2 years, preferably does not crack when placed outdoors for more than 5 years.

[0035] In the preferred technical solution of the present invention, the preparation of the quartz stone composition comprises the following steps:

[0036] (1) Weighing the required amount of stabilizer, colorant, coupling agent, and initiator, adding them to the required amount of resin, stirring until the mixture is uniform, and then adding 100-1000 mesh quartz filler and 6-100 mesh quartz filler in sequence under stirring to prepare a mixture;

[0037] (2) compressing the obtained mixture under vacuum conditions of -0.1 MPa to obtain a plate precursor;

[0038] (3) The prepared board precursor is heated and solidified to obtain a board product.

[0039] In the preferred technical solution of the present invention, the stirring conditions in step (1) are 100-300 r / min*1-30 min, preferably 150-250 r / min*5-25 min.

[0040] In the preferred technical solution of the present invention, the compression in step (2) is vibration compression for 1-60 minutes.

[0041] In the preferred technical solution of the present invention, the curing conditions in step (3) are 70°C-150°C*10-300min, preferably 85°C-110°C*20-200min, and more preferably 90-100°C*30-100min.

[0042] Another object of the present invention is to provide a method for preparing a quartz stone composition, wherein the quartz stone composition comprises, by weight, 80-95% of a quartz filler, 4-15% of a resin, 0.1-5% of a stabilizer, 0.05-5% of a colorant, 0.05-5% of an initiator, and 0.05-5% of a coupling agent, wherein the quartz filler has a particle size of 6-1000 mesh, the resin has a glass transition temperature of not less than 80°C, and the stabilizer comprises an antibacterial agent, a hydrophobic agent, and a nanomaterial or fiber material in a mass ratio of 1:1-10:3-20. The preparation of the quartz stone composition comprises the following steps:

[0043] (1) Weighing the required amount of stabilizer, colorant, coupling agent, and initiator, adding them to the required amount of resin, stirring until the mixture is uniform, and then adding 100-1000 mesh quartz filler and 6-100 mesh quartz filler in sequence under stirring to prepare a mixture;

[0044] (2) compressing the obtained mixture under vacuum conditions of -0.1 MPa to obtain a plate precursor;

[0045] (3) The prepared board precursor is heated and solidified to obtain a board product.

[0046] In the preferred technical solution of the present invention, the stirring conditions in step (1) are 100-300 r / min*1-30 min, preferably 150-250 r / min*5-25 min.

[0047] In the preferred technical solution of the present invention, the compression in step (2) is vibration compression for 1-60 minutes.

[0048] In the preferred technical solution of the present invention, the curing conditions in step (3) are 70°C-150°C*10-300min, preferably 85°C-110°C*20-200min, and more preferably 90-100°C*30-100min.

[0049] In a preferred technical solution of the present invention, the silicon dioxide content in the quartz filler is greater than 99%, preferably greater than 99.5%.

[0050] In the preferred technical solution of the present invention, the weight ratio of 100-1000 mesh quartz filler to 6-100 mesh quartz filler is 0.5-5:1.

[0051] In a preferred technical solution of the present invention, the glass transition temperature of the resin is not lower than 100°C.

[0052] In a preferred technical solution of the present invention, the composition contains 10-15% of resin by weight.

[0053] In a preferred technical solution of the present invention, the resin is selected from resins without benzene rings and / or conjugated double bonds, preferably any one of petroleum resins, alkyd resins, acrylic resins, unsaturated polyester resins, polyether resins, polyester resins, or a combination thereof.

[0054] In the preferred technical solution of the present invention, the resin is ORCHEM TM Any one of 727 unsaturated polyester resin, SIL93BE-956 resin, and Brayton polyester resin, or a combination thereof.

[0055] In a preferred technical solution of the present invention, the stabilizer is composed of an antibacterial agent: a hydrophobic agent: a nanomaterial or a fiber material in a mass ratio of 1:1-2:5-10.

[0056] In a preferred technical solution of the present invention, the composition contains 0.3-3% of the stabilizer by weight.

[0057] In a preferred technical solution of the present invention, the nanomaterial is selected from any one of nano oxides, nano carbides, nano borides, and nano nitrides, or a combination thereof.

[0058] In a preferred technical solution of the present invention, the particle size of the nanomaterial is not higher than 500 nm.

[0059] In a preferred technical solution of the present invention, the fiber material is selected from any one of carbon fiber, glass fiber, and aramid fiber, or a combination thereof.

[0060] In a preferred technical solution of the present invention, the length of the fiber material is not less than 3 mm.

[0061] In the preferred technical solution of the present invention, the antibacterial agent is selected from any one of alcohol antibacterial agents, silver antibacterial agents, imidazole antibacterial agents, copper antibacterial agents, zinc antibacterial agents, aldehyde antibacterial agents, acylanilide antibacterial agents, thiazole antibacterial agents, ketone antibacterial agents, biguanide antibacterial agents, and phenolic antibacterial agents, or a combination thereof.

[0062] In a preferred technical solution of the present invention, the antibacterial agent is selected from any one of phenoxyethanol (PHE-SP10), Germall IS45, and ZEOMIC AWION, or a combination thereof.

[0063] In a preferred technical solution of the present invention, the hydrophobic agent is selected from any one of an organosilicon hydrophobic agent, paraffin, a fluorocarbon polymer hydrophobic agent, and a fatty acid soap, or a combination thereof.

[0064] In a preferred technical solution of the present invention, the hydrophobic agent is selected from any one of Wacker BS4004, TEGO Phobe 1500N, paraffin, or a combination thereof.

[0065] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the colorant by weight.

[0066] In the preferred technical solution of the present invention, the colorant is selected from any one or a combination of iron oxide colorants, titanium oxide colorants, phthalocyanine colorants, azo colorants, and methylcalcein complexes, and is preferably selected from any one or a combination of titanium dioxide, phthalocyanine blue, and iron oxide red.

[0067] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the initiator by weight.

[0068] In a preferred technical solution of the present invention, the initiator is selected from any one of an azo initiator and a peroxide initiator, or a combination thereof.

[0069] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the coupling agent by weight.

[0070] In a preferred technical solution of the present invention, the coupling agent is selected from any one of a silane coupling agent, a titanate coupling agent, and an aluminate compound, or a combination thereof.

[0071] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 80-90% quartz filler, 8-15% resin, 0.1-5% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0072] In the preferred technical solution of the present invention, the composition contains 87.37% of quartz filler, ORCHEM TM 727 unsaturated polyester resin 11.65%, titanium dioxide 0.29%, silane coupling agent (KH-570) 0.1%, azobisisobutyronitrile 0.1%, Germall IS45 0.1%, TEGO Phobe 1500N 0.1% and nano-alumina 0.29%.

[0073] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 88.46% of quartz filler, 10.24% of SIL93BE-956 resin, 0.09% of phthalocyanine blue, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.09% of ZEOMIC AW10N, 0.2% of paraffin wax and 0.74% of glass fiber.

[0074] In a preferred technical solution of the present invention, the composition contains, by weight percentage, 87.72% of quartz filler, 11.08% of Brayton polyester resin, 0.09 parts of red iron oxide, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.09% of PHE-SP10, 0.1% of Wacker BS4004, and 0.74% of carbon fiber.

[0075] In a preferred technical solution of the present invention, the UV resistance test of the quartz stone composition is above level 4, preferably above level 5.

[0076] In a preferred technical solution of the present invention, the quartz stone composition does not turn yellow when placed outdoors for more than 2 years, preferably does not turn yellow when placed outdoors for more than 5 years.

[0077] In a preferred technical solution of the present invention, the quartz stone composition does not crack when placed outdoors for more than 2 years, preferably does not crack when placed outdoors for more than 5 years.

[0078] Another object of the present invention is to provide use of the quartz stone composition of the present invention in preparing building materials that can be used indoors and outdoors.

[0079] In a preferred technical solution of the present invention, the building material is selected from any one of a countertop, a floor, a furniture surface, a building decorative panel, and a wall tile.

[0080] Unless otherwise specified, the present invention adopts the following methods to test the properties of the quartz stone composition and its products.

[0081] 1. UV resistance: tested using ASTM D4329-13.

[0082] 2. Antibacterial test: tested using ASTM E2180-18.

[0083] 3. Glass transition temperature of the resin: detected by differential scanning calorimetry (DSC).

[0084] 4. Crack Resistance Test: Boil the test plate in 100°C boiling water for 30 minutes. Remove the plate from the boiling water and freeze it at -20°C for 30 minutes. Observe the plate for cracks. If no cracks are observed, repeat the boiling and freezing steps described above until cracks are observed.

[0085] 5. Surface water drip test: Dip chopsticks in water, drop it on the board, and observe the changes of the water droplets on the board.

[0086] Unless otherwise specified, when the present invention relates to the percentage between liquids, the percentages are volume / volume percentages; when the present invention relates to the percentage between liquids and solids, the percentages are volume / weight percentages; when the present invention relates to the percentage between solids and liquids, the percentages are weight / volume percentages; and the rest are weight / weight percentages.

[0087] Compared with the prior art, the present invention has the following beneficial effects:

[0088] 1. The quartz stone composition of the present invention significantly improves and enhances the mechanical properties of the composition by adding a stabilizer composed of an antibacterial agent, a hydrophobic agent, a nanomaterial or a fiber material in a certain mass ratio. It has good resistance to temperature difference damage, water cracking resistance, weather resistance and bacteria resistance, effectively avoids the generation of aging waste, significantly reduces material costs and construction costs of replacing materials, and has the advantages of greening and environmental protection.

[0089] 2. The preparation method of the quartz stone composition of the present invention is simple to operate, reduces construction difficulty, saves production time, and is suitable for industrial production. DETAILED DESCRIPTION

[0090] The details of the present invention are further explained and described below in conjunction with specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0091] Example 1 Preparation of the Quartz Stone Plate of the Present Invention

[0092] The composition of quartz stone slabs:

[0093] The preparation of quartz stone slabs includes the following steps:

[0094] (1) Weigh the required amount of titanium dioxide, silane coupling agent (KH-570), azobisisobutylnitrile, Germall IS45, TEGO Phobe 1500N and nano-alumina, and add them to the required amount of ORCHEM TM 727 unsaturated polyester resin was stirred (200 r / min) until uniformly mixed. Under stirring (200 r / min), 100-1000 mesh quartz filler and 6-100 mesh quartz filler were sequentially added until uniformly mixed to prepare a mixture;

[0095] (2) passing the mixture obtained in step (1) through a vacuum high-frequency vibration plate and vibrating and compressing it for 10 minutes at a vacuum degree of -0.1 MPa to obtain a compressed product;

[0096] (3) The compressed product obtained in step (2) is sent to a curing furnace and heated and cured at 100° C. for 40 minutes to obtain the product.

[0097] The quartz stone plate prepared in Example 1 was tested by the method of the present invention. The UV resistance level was 5, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 75%, and the surface water drop test result was water droplets.

[0098] Example 2: Preparation method of quartz stone plate of the present invention

[0099] The composition of quartz stone slabs:

[0100] The preparation of quartz stone slabs includes the following steps:

[0101] (1) Weigh the required amount of phthalocyanine blue, silane coupling agent (KH-570), azobisisobutylnitrile, ZEOMIC AW10N, paraffin wax and glass fiber, add them to the required amount of SIL93BE-956 resin, stir (200 r / min) until the mixture is uniformly mixed, and then add 100-1000 mesh quartz filler and 6-100 mesh quartz filler in sequence under stirring (200 r / min) until the mixture is uniformly mixed to prepare a mixture;

[0102] (2) passing the mixture obtained in step (1) through a vacuum high-frequency vibration plate and vibrating and compressing it for 10 minutes at a vacuum degree of -0.1 MPa to obtain a compressed product;

[0103] (3) The compressed product obtained in step (2) is sent to a curing furnace and heated and cured at 120° C. for 30 minutes to obtain the product.

[0104] The quartz stone plate prepared in Example 2 was tested by the method of the present invention. The UV resistance level was 5, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 73%, and the surface water drop test result was water droplets.

[0105] Example 3: Preparation of the quartz stone plate of the present invention

[0106] The composition of quartz stone slabs:

[0107] The preparation of quartz stone slabs includes the following steps:

[0108] (1) Weighing the required amount of iron oxide red, silane coupling agent (KH-570), azobisisobutylnitrile, PHE-SP10, Wacker BS4004 and carbon fiber, adding them to the required amount of Brayton polyester resin, stirring (200 r / min) until the mixture is uniform, and then adding 100 mesh to 1000 mesh quartz filler and 6 mesh to 100 mesh quartz filler in sequence under stirring (200 r / min) until the mixture is uniform, to prepare a mixture;

[0109] (2) passing the mixture obtained in step (1) through a vacuum high-frequency vibration plate and vibrating and compressing it for 10 minutes at a vacuum degree of -0.1 MPa to obtain a compressed product;

[0110] (3) The compressed product obtained in step (2) is sent to a curing furnace and heated and cured at 150° C. for 30 minutes to obtain the product.

[0111] The quartz stone plate prepared in Example 3 was tested by the method of the present invention. The UV resistance level was 5, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 82%, and the surface water drop test result was water droplets.

[0112] Comparative Example 1:

[0113] The composition of quartz stone slabs:

[0114] The preparation of quartz stone slabs includes the following steps:

[0115] (1) Weigh the required amount of titanium dioxide, silane coupling agent (KH-570), and azobisisobutylnitrile, and add them to the required amount of ORCHEM TM 727 unsaturated polyester resin was stirred (200 r / min) until uniformly mixed, and then 100-1000 mesh quartz filler and 6-100 mesh quartz filler were added in sequence under stirring (200 r / min) until uniformly mixed to prepare a mixture;

[0116] (2) passing the mixture obtained in step (1) through a vacuum high-frequency vibration plate and vibrating and compressing it for 10 minutes at a vacuum degree of -0.1 MPa to obtain a compressed product;

[0117] (3) The compressed product obtained in step (2) is sent to a curing furnace and heated and cured at 100° C. for 40 minutes to obtain the product.

[0118] The quartz stone plate prepared in Comparative Example 1 was tested using the method of the present invention. The UV resistance level was 1, the crack resistance level was such that cracks appeared after 10 cycles, the antibacterial rate was 7.4%, and the surface drip test result showed that the water spread on the surface of the plate.

[0119] Test Example 1: Stability Study of the Quartz Stone Plate of the Present Invention

[0120] The quartz stone slabs prepared in Examples 1-3 were placed outdoors, and their color changes and cracks were observed and recorded every day. The colors were normal and there were no cracks within 5 years.

[0121] The above description of the specific embodiments of the present invention does not limit the present invention. Those skilled in the art can make various changes or modifications based on the present invention. As long as they do not depart from the spirit of the present invention, they should fall within the scope of protection of the claims of the present invention.

Claims

1. A quartz stone composition, which contains, by weight percentage, 80-95% of quartz filler, 4-15% of resin, 0.1-5% of stabilizer, 0.05-5% of colorant, 0.05-5% of initiator and 0.05-5% of coupling agent, wherein: The quartz filler has a particle size of 6-1000 meshes, the resin has a glass transition temperature of not less than 80° C., and the stabilizer is composed of an antibacterial agent: a hydrophobic agent: a nano material or a fiber material in a mass ratio of 1:1-10:3-20.

2. The composition as claimed in claim 1, wherein the weight ratio of the quartz filler of 100-1000 mesh to the quartz filler of 6-100 mesh is 0.5-5:

1.

3. The composition according to any one of claims 1 to 2, wherein the resin is selected from resins not containing benzene rings and / or conjugated double bonds, preferably any one of petroleum resins, alkyd resins, acrylic resins, unsaturated polyester resins, polyether resins, polyester resins, or a combination thereof.

4. The composition according to any one of claims 1 to 3, wherein the nanomaterial is selected from any one of nano oxides, nano carbides, nano borides, nano nitrides or a combination thereof.

5. The composition according to any one of claims 1 to 4, wherein the fiber material is selected from any one of carbon fiber, glass fiber, aramid fiber or a combination thereof.

6. A composition as described in any one of claims 1 to 5, wherein the antibacterial agent is selected from any one of alcohol antibacterial agents, silver antibacterial agents, imidazole antibacterial agents, copper antibacterial agents, zinc antibacterial agents, aldehyde antibacterial agents, acylanilide antibacterial agents, thiazole antibacterial agents, ketone antibacterial agents, biguanide antibacterial agents, and phenolic antibacterial agents, or a combination thereof.

7. The composition according to any one of claims 1 to 6, wherein the hydrophobic agent is selected from any one of an organosilicon hydrophobic agent, paraffin, a fluorocarbon polymer hydrophobic agent, and a fatty acid soap, or a combination thereof.

8. The composition according to any one of claims 1 to 7, wherein the composition comprises, by weight percentage, 80-90% of quartz filler, 8-15% of resin, 0.1-5% of stabilizer, 0.05-1% of colorant, 0.05-1% of initiator and 0.05-1% of coupling agent.

9. The method for preparing a quartz composition according to any one of claims 1 to 8, wherein the quartz composition contains, by weight percentage, 80-95% of quartz filler, 4-15% of resin, 0.1-5% of stabilizer, 0.05-5% of colorant, 0.05-5% of initiator and 0.05-5% of coupling agent, wherein: The quartz filler has a particle size of 6-1000 mesh, the glass transition temperature of the resin is not less than 80° C., the stabilizer is composed of an antibacterial agent: a hydrophobic agent: a nano material or a fiber material in a mass ratio of 1:1-10:3-20, and the preparation of the quartz stone composition includes the following steps: (1) Weighing the required amount of stabilizer, colorant, coupling agent, and initiator, adding them to the required amount of resin, stirring until the mixture is uniform, and then adding quartz filler of 100-1000 mesh and quartz filler of 6-100 mesh in sequence under stirring to prepare a mixture; (2) Under a vacuum degree of -0.1 MPa, the obtained mixture is vacuum-compressed to obtain a sheet precursor; (3) The prepared board precursor is heated and solidified to obtain a board product.

10. Use of the quartz stone composition according to any one of claims 1 to 8 or the quartz stone composition prepared by the method according to claim 9 in preparing building materials that can be used indoors or outdoors.

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