Artificial stone composition, preparation method therefor, and use thereof

Abstract

The present invention relates to an artificial stone composition, the composition comprising, in weight percentage, 80-95% silicate filler, 4-15% resin, 0.1-5% stabilizer, 0.05-5% colorant, 0.05-5% initiator, and 0.05-5% coupling agent. The silicate is selected from any one of aluminum silicate and sodium magnesium silicate or a combination thereof, the particle size of the silicate filler is 6 meshes-1000 meshes, the glass transition temperature of the resin is not lower than 80°C, and the stabilizer is composed of any one of antibacterial agent:hydrophobic agent:nanomaterial or fiber material or a combination thereof in a mass ratio of 1:1-10:3-20. The artificial stone composition of the present invention has good resistance to temperature difference damage, water cracking resistance, weather resistance, and bacteria resistance. In addition, said composition 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.

Description

Artificial stone composition, preparation method thereof and application thereof Technical Field

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

[0002] Engineered stone products, often composed primarily of quartz, offer advantages over natural stone products, such as lower porosity, greater durability, and similar aesthetic qualities. They are widely used in countertops, flooring, furniture surfaces, architectural decorative panels, and wall tiles. However, engineered stone products suffer from the following drawbacks: First, their stability is affected by factors such as light, temperature, water, and bacteria. These factors include yellowing due to UV radiation, fracture due to temperature fluctuations, slab cracking due to water penetration or accumulation, and bacterial corrosion. Second, the production of quartz slabs is prone to dust and noise pollution, which impacts operator health and increases environmental remediation costs. Third, the dwindling availability of quartz sand resources limits their use. Therefore, there is an urgent need to develop stable artificial stone slabs to meet market demand.

[0003] Summary of the Invention

[0004] The present invention aims to provide an artificial stone composition, which comprises, by weight percentage, 80-95% of a silicate 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 silicate is selected from any one of aluminum silicate and sodium magnesium silicate, or a combination thereof. The silicate filler has a particle size of 6-1000 mesh. The resin has a glass transition temperature of not less than 80° C. 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 the preferred technical solution of the present invention, the aluminum element: silicon element: oxygen element in the aluminosilicate is composed according to a mass ratio of 1:1-10:1-10, and preferably the aluminum element: silicon element: oxygen element in the aluminosilicate is composed according to a mass ratio of 1:(1.5-5):(3-8).

[0006] In the preferred technical solution of the present invention, the magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is composed according to a mass ratio of 1:1-10:10-20:20-30, and preferably the magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is composed according to a mass ratio of 1:(5-8):(10-15);(25-30).

[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 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.

[0009] In a preferred technical solution of the present invention, the mass ratio of aluminum silicate to sodium magnesium silicate in the composition is 1-5:1, preferably 1-3:1, in weight percentage.

[0010] In a preferred technical solution of the present invention, the quartz sand contained in the composition is ≤4% by weight, preferably ≤3%, more preferably ≤2%, and further preferably ≤1%.

[0011] In a preferred technical solution of the present invention, the composition substantially does not contain quartz sand.

[0012] The term "substantially free of quartz sand" as used in the present invention means that quartz sand is not detected in the composition or the amount of quartz sand in the composition is zero.

[0013] In a preferred technical solution of the present invention, the composition contains 10-15% of resin by weight.

[0014] 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.

[0015] 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.

[0016] In a preferred technical solution of the present invention, the composition contains 0.3-3% of the stabilizer by weight.

[0017] 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.

[0018] In a preferred technical solution of the present invention, the particle size of the nanomaterial is not higher than 500 nm.

[0019] 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.

[0020] In a preferred technical solution of the present invention, the length of the fiber material is not less than 3 mm.

[0021] 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.

[0022] 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.

[0023] 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.

[0024] 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.

[0025] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the colorant by weight.

[0026] 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.

[0027] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the initiator by weight.

[0028] 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.

[0029] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the coupling agent by weight.

[0030] 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.

[0031] In a preferred technical solution of the present invention, the artificial stone composition does not contain cobalt element.

[0032] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 80-90% aluminosilicate, 8-15% resin, 0.1-5% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0033] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 40-65% aluminosilicate, 25-45% sodium magnesium silicate, 8-15% resin, 0.1-5% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0034] In the preferred technical solution of the present invention, the composition contains 87.38% of aluminosilicate, ORCHEM TM 727 unsaturated polyester resin 11.64%, 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%.

[0035] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 60.52% of aluminum silicate, 27.93% of sodium magnesium silicate, 10.24% of SIL93BE-956 resin, 0.09% of phthalocyanine blue, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.1% of ZEOMIC AW10N, 0.2% of paraffin wax and 0.74% of glass fiber.

[0036] In a preferred technical solution of the present invention, the composition contains, by weight percentage, 46.17% aluminosilicate, 41.55% sodium magnesium silicate, 11.08% Brayton polyester resin, 0.09 part red iron oxide, 0.09% silane coupling agent (KH-570), 0.09% azobisisobutyronitrile, 0.09% PHE-SP10, 0.1% Wacker BS4004, and 0.74% carbon fiber.

[0037] In a preferred technical solution of the present invention, the UV resistance test of the artificial stone composition is above level 5, preferably above level 6.

[0038] In a preferred technical solution of the present invention, the artificial 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.

[0039] In a preferred technical solution of the present invention, the artificial 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.

[0040] In a preferred technical solution of the present invention, the preparation of the artificial stone composition comprises the following steps:

[0041] (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 a 100-1000 mesh silicate filler and a 6-100 mesh silicate filler in sequence under stirring to prepare a mixture;

[0042] (2) compressing the obtained mixture under vacuum conditions of -0.1 MPa to obtain a plate precursor;

[0043] (3) The prepared board precursor is heated and solidified to obtain a board product.

[0044] 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.

[0045] In the preferred technical solution of the present invention, the compression in step (2) is vibration compression for 1-60 minutes.

[0046] 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.

[0047] Another object of the present invention is to provide a method for preparing an artificial stone composition. The artificial stone composition comprises, by weight, 80-95% silicate filler, 4-15% resin, 0.1-5% stabilizer, 0.05-5% colorant, 0.05-5% initiator, and 0.05-5% coupling agent. The silicate is selected from any one of aluminum silicate and sodium magnesium silicate, or a combination thereof. The silicate filler has a particle size of 6-1000 mesh. The resin has a glass transition temperature of not less than 80° C. 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 artificial stone composition comprises the following steps:

[0048] (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 a 100-1000 mesh silicate filler and a 6-100 mesh silicate filler in sequence under stirring to prepare a mixture;

[0049] (2) compressing the obtained mixture under vacuum conditions of -0.1 MPa to obtain a plate precursor;

[0050] (3) The prepared board precursor is heated and solidified to obtain a board product.

[0051] 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.

[0052] In the preferred technical solution of the present invention, the compression in step (2) is vibration compression for 1-60 minutes.

[0053] 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.

[0054] In the preferred technical solution of the present invention, the aluminum element: silicon element: oxygen element in the aluminosilicate is composed according to a mass ratio of 1:1-10:1-10, and preferably the aluminum element: silicon element: oxygen element in the aluminosilicate is composed according to a mass ratio of 1:(1.5-5):(3-8).

[0055] In the preferred technical solution of the present invention, the magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is composed according to a mass ratio of 1:1-10:10-20:20-30, and preferably the magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is composed according to a mass ratio of 1:(5-8):(10-15);(25-30).

[0056] In a preferred technical solution of the present invention, the glass transition temperature of the resin is not lower than 100°C.

[0057] 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.

[0058] In a preferred technical solution of the present invention, the mass ratio of aluminum silicate to sodium magnesium silicate in the composition is 1-5:1, preferably 1-3:1, in weight percentage.

[0059] In a preferred technical solution of the present invention, the quartz sand contained in the composition is ≤4% by weight, preferably ≤3%, more preferably ≤2%, and further preferably ≤1%.

[0060] In a preferred technical solution of the present invention, the composition substantially does not contain quartz sand.

[0061] The term "substantially free of quartz sand" as used in the present invention means that quartz sand is not detected in the composition or the amount of quartz sand in the composition is zero.

[0062] In a preferred technical solution of the present invention, the composition contains 10-15% of resin by weight.

[0063] 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.

[0064] 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.

[0065] In a preferred technical solution of the present invention, the composition contains 0.3-3% of the stabilizer by weight.

[0066] 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.

[0067] In a preferred technical solution of the present invention, the particle size of the nanomaterial is not higher than 500 nm.

[0068] 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.

[0069] In a preferred technical solution of the present invention, the length of the fiber material is not less than 3 mm.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the colorant by weight.

[0075] 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.

[0076] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the initiator by weight.

[0077] 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.

[0078] In a preferred technical solution of the present invention, the composition contains 0.05-1% of the coupling agent by weight.

[0079] 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.

[0080] In a preferred technical solution of the present invention, the artificial stone composition does not contain cobalt element.

[0081] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 80-90% aluminosilicate, 8-15% resin, 0.1-5% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0082] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 40-65% aluminosilicate, 25-45% sodium magnesium silicate, 8-15% resin, 0.1-1% stabilizer, 0.05-1% colorant, 0.05-1% initiator and 0.05-1% coupling agent.

[0083] In the preferred technical solution of the present invention, the composition contains 87.38% of aluminosilicate, ORCHEM TM 727 unsaturated polyester resin 11.64%, 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%.

[0084] In the preferred technical solution of the present invention, the composition contains, by weight percentage, 60.52% of aluminum silicate, 27.93% of sodium magnesium silicate, 10.24% of SIL93BE-956 resin, 0.09% of phthalocyanine blue, 0.09% of silane coupling agent (KH-570), 0.09% of azobisisobutyronitrile, 0.1% of ZEOMIC AW10N, 0.2% of paraffin wax and 0.74% of glass fiber.

[0085] In a preferred technical solution of the present invention, the composition contains, by weight percentage, 46.17% aluminosilicate, 41.55% sodium magnesium silicate, 11.08% Brayton polyester resin, 0.09 part red iron oxide, 0.09% silane coupling agent (KH-570), 0.09% azobisisobutyronitrile, 0.09% PHE-SP10, 0.1% Wacker BS4004, and 0.74% carbon fiber.

[0086] In a preferred technical solution of the present invention, the UV resistance test of the artificial stone composition is above level 5, preferably above level 6.

[0087] In a preferred technical solution of the present invention, the artificial 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.

[0088] In a preferred technical solution of the present invention, the artificial 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.

[0089] Another object of the present invention is to provide a use of the artificial stone composition of the present invention in preparing building materials that can be used indoors and outdoors.

[0090] 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.

[0091] Unless otherwise specified, the present invention adopts the following methods to test the properties of the artificial stone composition and its products.

[0092] 1. XRD detection: adopt JY / T 009-1996 detection.

[0093] 2. UV resistance: tested using ASTM D4329-13.

[0094] 3. Antibacterial test: tested using ASTM E2180-18.

[0095] 4. Glass transition temperature of the resin: detected by differential scanning calorimetry (DSC).

[0096] 5. 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.

[0097] 6. Surface water drip test: Dip chopsticks in water and drop it on the board, and observe the changes of the water droplets on the board.

[0098] 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.

[0099] Compared with the prior art, the present invention has the following beneficial effects:

[0100] 1. The artificial stone composition of the present invention is scientifically screened for components and proportions, and a stabilizer composed of antibacterial materials, hydrophobic materials, nanomaterials or fiber materials in a certain mass ratio is added. This significantly improves and enhances the mechanical properties of the composition, and has good resistance to temperature damage, water cracking, weather resistance and bacterial resistance. It effectively avoids the generation of aging waste, significantly reduces material costs and the construction cost of replacing materials, and has the advantages of greening and environmental protection.

[0101] 2. The method for preparing the artificial stone composition of the present invention is simple to operate, reduces construction difficulty, saves production time, and is suitable for industrial production. BRIEF DESCRIPTION OF THE DRAWINGS

[0102] FIG1 is an XRD pattern of the artificial stone plate of Example 1. DETAILED DESCRIPTION

[0103] 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.

[0104] Example 1 Preparation of artificial stone board of the present invention

[0105] Composition of artificial stone slabs:

[0106] The preparation of artificial stone slabs includes the following steps:

[0107] (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, stirring (200 r / min) until uniformly mixed, and then adding 100-1000 mesh aluminosilicate filler and 6-100 mesh aluminosilicate filler in sequence under stirring (200 r / min) until uniformly mixed to prepare a mixture;

[0108] (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;

[0109] (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.

[0110] The XRD pattern of the artificial stone plate prepared in Example 1, obtained by the method of the present invention, is shown in Figure 1. No crystalline silicon dioxide (SiO2) was detected, and no cobalt was present. Testing of the artificial stone plate prepared in Example 1, obtained by the method of the present invention, showed a UV resistance rating of 6, a crack resistance of 1,000 cycles without cracks, a bacteriostasis rate of 72%, and a surface water droplet test result of forming water droplets.

[0111] Example 2: Method for preparing artificial stone slabs of the present invention

[0112] Composition of artificial stone slabs:

[0113] The preparation of artificial stone slabs includes the following steps:

[0114] (1) Weighing the required amount of phthalocyanine blue, silane coupling agent (KH-570), azobisisobutylnitrile, ZEOMIC AW10N, paraffin wax and glass fiber, adding them to the required amount of SIL93BE-956 resin, stirring (200 r / min) until the mixture is uniformly mixed, and then adding 100-1000 mesh aluminum silicate filler and 6-100 mesh sodium magnesium silicate filler in sequence under stirring (200 r / min) until the mixture is uniformly mixed to prepare a mixture;

[0115] (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;

[0116] (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.

[0117] The artificial stone plate prepared in Example 2 was tested using the method of the present invention. The UV resistance level was 6, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 78%, and the surface water drop test result was water droplets.

[0118] Example 3: Preparation of artificial stone board of the present invention

[0119] Composition of artificial stone slabs:

[0120] The preparation of artificial stone slabs includes the following steps:

[0121] (1) Weighing the required amounts of red iron oxide, silane coupling agent (KH-570), azobisisobutyronitrile, 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 uniformly mixed, and then adding 100-1000 mesh aluminum silicate filler and 6-100 mesh sodium magnesium silicate filler in sequence under stirring (200 r / min) until the mixture is uniformly mixed to prepare a mixture;

[0122] (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;

[0123] (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.

[0124] The artificial stone plate prepared in Example 3 was tested using the method of the present invention. The UV resistance level was 6, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 80%, and the surface water drop test result was water droplets.

[0125] Example 4: Preparation of artificial stone board of the present invention

[0126] Composition of artificial stone slabs:

[0127] The preparation of artificial stone slabs includes the following steps:

[0128] (1) Weighing the required amounts of red iron oxide, silane coupling agent (KH-570), azobisisobutyronitrile, 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 uniformly mixed, and then adding 100-1000 mesh aluminum silicate filler and 6-100 mesh sodium magnesium silicate filler in sequence under stirring (200 r / min) until the mixture is uniformly mixed to prepare a mixture;

[0129] (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;

[0130] (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.

[0131] The artificial stone plate prepared in Example 4 was tested using the method of the present invention. The UV resistance level was 6, the crack resistance level was no cracks after 1000 cycles, the antibacterial rate was 76%, and the surface water drop test result was water droplets.

[0132] Comparative Example 1

[0133] The formula of the artificial stone composition is:

[0134] The preparation method of the board is:

[0135] (1) The silicate is crushed to an average particle size of less than 100 mesh, and then added to a non-gravity mixer in proportion with a coupling agent, an initiator, and a colorant, and stirred and mixed at a speed of 200 r / min for 3 minutes. Then, the resin is added and stirred and mixed for another 3 minutes to homogenize the mixture of these dry ingredients;

[0136] (2) passing the homogeneous mixture obtained in step (1) through a vacuum high-frequency vibration plate and vibrating and compressing it under a vacuum of about -0.1 MPa for 10 minutes to obtain a compressed product;

[0137] (3) The compressed product obtained in step (2) is sent to a curing furnace and heated at 100° C. for 40 minutes to be cured.

[0138] The method of the present invention was used to test the artificial stone board prepared in Comparative Example 1. The results showed that the UV resistance level was 4, the crack resistance level was such that cracks appeared after 10 cycles, the antibacterial rate was 8.3%, and the surface drip test result showed that water spread on the board surface.

[0139] Test Example 1: Stability Study of the Artificial Stone Plate of the Present Invention

[0140] The artificial stone slabs prepared in Examples 1-4 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.

[0141] 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. An artificial stone composition, which contains, by weight percentage, 80-95% silicate filler, 4-15% resin, 0.1-5% stabilizer, 0.05-5% colorant, 0.05-5% initiator and 0.05-5% coupling agent, wherein: The silicate is selected from any one of aluminum silicate and sodium magnesium silicate or a combination thereof, the silicate filler has a particle size of 6 mesh to 1000 mesh, 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 nanomaterial or a fiber material in a mass ratio of 1:1-10:3-20.

2. The composition as claimed in claim 1, wherein the aluminum element in the aluminosilicate: the silicon element: the oxygen element is composed according to a mass ratio of 1:1-10:1-10, and preferably the aluminum element in the aluminosilicate: the silicon element: the oxygen element is composed according to a mass ratio of 1:(1.5-5):(3-8).

3. The composition according to any one of claims 1 to 2, wherein the mass ratio of magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is 1:1-10:10-20:20-30, and preferably the mass ratio of magnesium element: sodium element: silicon element: oxygen element in the sodium magnesium silicate is 1:(5-8):(10-15);(25-30).

4. The composition according to any one of claims 1 to 3, 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.

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

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

7. A composition as described in any one of claims 1 to 6, 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.

8. The composition according to any one of claims 1 to 7, 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.

9. The method for preparing an artificial stone composition according to any one of claims 1 to 8, wherein the artificial stone composition contains, by weight percentage, 80-95% silicate filler, 4-15% resin, 0.1-5% stabilizer, 0.05-5% colorant, 0.05-5% initiator and 0.05-5% coupling agent, wherein: The silicate is selected from any one of aluminum silicate and sodium magnesium silicate or a combination thereof, the silicate filler has a particle size of 6-1000 mesh, the resin has a glass transition temperature of 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 artificial stone composition comprises the following steps: (1) Weigh the required amount of stabilizer, colorant, coupling agent, and initiator, add them to the required amount of resin, stir until the mixture is uniform, and then add 100-1000 mesh silicate filler and 6-100 mesh silicate filler in sequence under stirring to prepare a slurry. A mixture is obtained; (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 artificial stone composition according to any one of claims 1 to 8 or the artificial 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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