High-toughness quartz stone

Abstract

The high-toughness quartz stone is prepared from the following raw materials: inorganic powder, quartz sand, modified rubber powder, modified metakaolin, unsaturated polyester resin, a curing agent coupling agent and a gel material, the modified rubber powder is obtained by taking recycled rubber powder as a raw material, adding styrene resin, hydroxyl silicone oil and 3-aminopropyltriethoxysilane, mixing and modifying; according to the quartz stone, the inorganic powder and the quartz sand are taken as main raw materials, and the modified rubber powder and the modified metakaolin are introduced to be matched with other raw materials, so that the performance of the prepared quartz stone can be effectively improved, the toughness of the quartz stone is improved, and the quartz stone is prevented from cracking and deforming in subsequent use.

Description

Technical Field

[0001] This invention belongs to the field of artificial stone preparation technology, specifically relating to a high-toughness quartz stone. Background Technology

[0002] Artificial quartz stone is made by using unsaturated resin as a binder, combined with various natural stone powder, silica sand, glass powder and other inorganic materials, as well as appropriate additives and colorants. With its bright appearance and excellent scratch resistance and stain resistance, it is widely used in various decoration and renovation projects such as cabinets, bathrooms, and office floors.

[0003] Current formulations and technologies for producing artificial quartz stone still have some shortcomings, particularly poor toughness. When the material is subjected to internal stress due to thermal expansion and contraction, or external impact, it is prone to cracking and deformation. Therefore, it is necessary to provide an artificial quartz stone slab with high toughness. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a high-toughness quartz stone.

[0005] The present invention adopts the following technical solution: A high-toughness quartz stone, comprising the following raw materials in parts by weight: 70-80 parts of inorganic powder 20-30 parts of quartz sand 18-22 parts modified rubber powder 6-10 parts of modified metakaolin 8-10 parts of unsaturated polyester resin 2-3 parts of curing agent 3-4 parts of coupling agent 3-5 parts of gel material; The modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil and 3-aminopropyltriethoxysilane. The mass ratio of the recycled rubber powder to styrene resin, hydroxyl silicone oil and 3-aminopropyltriethoxysilane is 1:0.18-0.25:0.06-0.08:0.06-0.08.

[0006] Furthermore, the modification steps of the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at a temperature of 108-116℃ for 10-15 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above-mentioned internal mixer, keep the temperature constant, continue mixing and mixing for 15-20 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

[0007] Furthermore, its preparation method specifically includes the following steps: Step 1: Add the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin to a mixer and mix thoroughly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to the mixer and mix them evenly with the pre-mixed materials. Then add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into a molding mold, send it into a pressing device, and vibrate and press it to form a molded sheet. Step 4: Place the obtained molded sheet into an oven and cure it at 80-90℃. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone.

[0008] Furthermore, in step 3, during vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min.

[0009] Furthermore, in step 1, the stirring speed is 600 r / min and the stirring time is 12 min; in step 2, the stirring speed is 400 r / min and the stirring time is 30 min.

[0010] Furthermore, the modification steps of the modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

[0011] Furthermore, the amount of the modified liquid added is 60% of the amount of metakaolin added. The modified liquid is obtained by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol is 75%, the mass fraction of vinyltriethoxysilane is 1.2%, and the mass fraction of sulfonated castor oil is 0.8%.

[0012] Furthermore, the gel material is composed of fly ash and volcanic ash in a mass ratio of 2:1.

[0013] Furthermore, the coupling agent is a titanate coupling agent.

[0014] Furthermore, the curing agent is benzoyl peroxide.

[0015] As can be seen from the above description of the present invention, compared with the prior art, the beneficial effects of the present invention are as follows: The quartz stone material of this application uses inorganic powder and quartz sand as the main raw materials, and introduces modified rubber powder and modified metakaolin in combination with other raw materials, which can effectively improve the performance of the prepared quartz stone material, increase its toughness, and prevent it from cracking and deforming in subsequent use; wherein, the introduced modified rubber powder is based on recycled rubber powder, and styrene resin, hydroxyl silicone oil, 3-aminopropyltriethoxysilane and other modifying additives are added, so that the obtained modified rubber powder has good compatibility, so that the raw materials are effectively mixed to form a stable blend, thereby improving the toughness of the prepared quartz stone material; the introduced metakaolin can reduce the porosity between quartz sand and surrounding inorganic powder, thereby reducing the mechanically weak interface around quartz sand, so as to improve the toughness of quartz stone material and prevent quartz stone material from cracking and deforming. Detailed Implementation

[0016] The present invention will be further described below through specific embodiments.

[0017] A high-toughness quartz stone, comprising the following raw materials in parts by weight: 70-80 parts of inorganic powder 20-30 parts of quartz sand 18-22 parts modified rubber powder 6-10 parts of modified metakaolin 8-10 parts of unsaturated polyester resin 2-3 parts benzoyl peroxide 3-4 parts of titanate coupling agent 3-5 parts of gel material.

[0018] The inorganic powder is formed by mixing quartz powder and bentonite in a mass ratio of 6:1; the gel material is composed of fly ash and volcanic ash in a mass ratio of 2:1.

[0019] Modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane. Specifically, the mass ratio of recycled rubber powder to styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane is 1:0.18-0.25:0.06-0.08:0.06-0.08. Further, the modification steps for the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at a temperature of 108-116℃ for 10-15 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above-mentioned internal mixer, keep the temperature constant, continue mixing and mixing for 15-20 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

[0020] The modification steps for modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

[0021] The modified liquid was added at 60% of the amount of metakaolin. The modified liquid was prepared by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol was 75%, the mass fraction of vinyltriethoxysilane was 1.2%, and the mass fraction of sulfonated castor oil was 0.8%.

[0022] The preparation method of high-toughness quartz stone specifically includes the following steps: Step 1: Feed the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin into a mixer and stir for 12 minutes at a speed of 600 r / min to ensure that the materials are mixed evenly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to a mixer and stir at 400 r / min for 30 min. After mixing evenly with the pre-stirred materials, add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into the molding mold and send it into the pressing equipment for vibration pressing to obtain the molded sheet. During vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min. Step 4: Place the obtained molded sheet into an oven and cure it at 80-90℃. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone. Example

[0023] A high-toughness quartz stone, comprising the following raw materials in parts by weight: 70 parts of inorganic powder 20 parts of quartz sand 22 parts modified rubber powder 6 parts of modified metakaolin 8 parts of unsaturated polyester resin 2 parts benzoyl peroxide 4 parts titanate coupling agent Three portions of gel material.

[0024] The inorganic powder is formed by mixing quartz powder and bentonite in a mass ratio of 6:1; the gel material is composed of fly ash and volcanic ash in a mass ratio of 2:1.

[0025] Modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane. Specifically, the mass ratio of recycled rubber powder to styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane is 1:0.18:0.08:0.06. Further, the modification steps for the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at 108°C for 15 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above-mentioned internal mixer, keep the temperature constant, continue mixing and mixing for 15 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

[0026] The modification steps for modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

[0027] The modified liquid was added at 60% of the amount of metakaolin. The modified liquid was prepared by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol was 75%, the mass fraction of vinyltriethoxysilane was 1.2%, and the mass fraction of sulfonated castor oil was 0.8%.

[0028] The preparation method of high-toughness quartz stone specifically includes the following steps: Step 1: Feed the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin into a mixer and stir for 12 minutes at a speed of 600 r / min to ensure that the materials are mixed evenly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to a mixer and stir at 400 r / min for 30 min. After mixing evenly with the pre-stirred materials, add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into the molding mold and send it into the pressing equipment for vibration pressing to obtain the molded sheet. During vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min. Step 4: Place the obtained molded sheet into an oven and cure it at 80°C. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone. Example

[0029] A high-toughness quartz stone, comprising the following raw materials in parts by weight: 80 parts of inorganic powder 30 parts of quartz sand 18 parts modified rubber powder 10 parts of modified metakaolin 10 parts of unsaturated polyester resin 3 parts benzoyl peroxide 3 parts titanate coupling agent Five portions of gel material.

[0030] The inorganic powder is formed by mixing quartz powder and bentonite in a mass ratio of 6:1; the gel material is composed of fly ash and volcanic ash in a mass ratio of 2:1.

[0031] Modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane. Specifically, the mass ratio of recycled rubber powder to styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane is 1:0.25:0.06:0.08. Further, the modification steps for the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at 116°C for 10 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above internal mixer, keep the temperature constant, continue mixing and mixing for 20 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

[0032] The modification steps for modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

[0033] The modified liquid was added at 60% of the amount of metakaolin. The modified liquid was prepared by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol was 75%, the mass fraction of vinyltriethoxysilane was 1.2%, and the mass fraction of sulfonated castor oil was 0.8%.

[0034] The preparation method of high-toughness quartz stone specifically includes the following steps: Step 1: Feed the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin into a mixer and stir for 12 minutes at a speed of 600 r / min to ensure that the materials are mixed evenly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to a mixer and stir at 400 r / min for 30 min. After mixing evenly with the pre-stirred materials, add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into the molding mold and send it into the pressing equipment for vibration pressing to obtain the molded sheet. During vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min. Step 4: Place the obtained molded sheet into an oven and cure it at 90°C. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone. Example

[0035] A high-toughness quartz stone, comprising the following raw materials in parts by weight: 75 parts of inorganic powder 25 parts of quartz sand 20 parts modified rubber powder 8 parts of modified metakaolin 9 parts unsaturated polyester resin Benzoyl peroxide 2.5 parts 3.5 parts titanate coupling agent Four portions of gel material.

[0036] The inorganic powder is formed by mixing quartz powder and bentonite in a mass ratio of 6:1; the gel material is composed of fly ash and volcanic ash in a mass ratio of 2:1.

[0037] Modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane. Specifically, the mass ratio of recycled rubber powder to styrene resin, hydroxyl silicone oil, and 3-aminopropyltriethoxysilane is 1:0.22:0.07:0.07. Further, the modification steps for the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at 112°C for 12 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above internal mixer, keep the temperature constant, continue mixing and mixing for 18 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

[0038] The modification steps for modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

[0039] The modified liquid was added at 60% of the amount of metakaolin. The modified liquid was prepared by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol was 75%, the mass fraction of vinyltriethoxysilane was 1.2%, and the mass fraction of sulfonated castor oil was 0.8%.

[0040] The preparation method of high-toughness quartz stone specifically includes the following steps: Step 1: Feed the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin into a mixer and stir for 12 minutes at a speed of 600 r / min to ensure that the materials are mixed evenly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to a mixer and stir at 400 r / min for 30 min. After mixing evenly with the pre-stirred materials, add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into the molding mold and send it into the pressing equipment for vibration pressing to obtain the molded sheet. During vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min. Step 4: Place the obtained molded sheet into an oven and cure it at 85°C. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone.

[0041] Comparative Example 1 Its raw material composition and preparation method are basically the same, the difference being that the modified rubber powder in the raw material composition is replaced with unmodified recycled rubber powder.

[0042] Comparative Example 2 The raw material composition and preparation method are basically the same, the difference being that the modified metakaolin in the raw material composition is replaced with unmodified metakaolin.

[0043] Comparative Example 3 Its raw material composition and preparation method are basically the same, the difference being that the raw material composition does not include modified rubber powder.

[0044] Comparative Example 4 Its raw material composition and preparation method are basically the same, the difference being that the raw material composition does not include modified metakaolin.

[0045] The quartz stone materials prepared in Examples 1-3 and Comparative Examples 1-4 were subjected to performance tests. The specific results are shown in the table below.

[0046] Table 1 Performance Test Table

[0047] As can be seen from the table above, the quartz stone of this application is mainly made of inorganic powder and quartz sand. The introduction of modified rubber powder and modified metakaolin in combination with other raw materials can effectively improve the performance of the prepared quartz stone, increase its toughness, and prevent it from cracking and deforming in subsequent use.

[0048] The modified rubber powder introduced in this application uses recycled rubber powder as the base material and adds styrene resin, hydroxyl silicone oil, 3-aminopropyltriethoxysilane and other modifying agents to obtain modified rubber powder with good compatibility, so that the raw materials can be effectively mixed to form a stable blend, thereby improving the toughness of the prepared quartz stone. The introduced metakaolin can reduce the porosity between quartz sand and surrounding inorganic powder, thereby reducing the mechanically weak interface around quartz sand, so as to improve the toughness of quartz stone and prevent cracking and deformation of quartz stone.

[0049] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification should still fall within the scope of the present invention.

Claims

1. A high-toughness quartz stone, characterized in that: Including the following parts by weight of raw materials: 70-80 parts of inorganic powder 20-30 parts of quartz sand 18-22 parts modified rubber powder 6-10 parts of modified metakaolin 8-10 parts of unsaturated polyester resin 2-3 parts of curing agent 3-4 parts of coupling agent 3-5 parts of gel material; The modified rubber powder is obtained by mixing and modifying recycled rubber powder with styrene resin, hydroxyl silicone oil and 3-aminopropyltriethoxysilane. The mass ratio of the recycled rubber powder to styrene resin, hydroxyl silicone oil and 3-aminopropyltriethoxysilane is 1:0.18-0.25:0.06-0.08:0.06-0.

08.

2. The high-toughness quartz stone according to claim 1, characterized in that: The modification steps of the modified rubber powder are as follows: A. Add the recycled rubber powder and 3-aminopropyltriethoxysilane into a mixer and mix and knead at a temperature of 108-116℃ for 10-15 minutes. B. Continue to add styrene resin and hydroxyl silicone oil to the above-mentioned internal mixer, keep the temperature constant, continue mixing and mixing for 15-20 minutes, discharge the material, and let it stand at room temperature for more than 24 hours. C. The mixed material after internal mixing is fed into an extruder for extrusion, and the extruded granules are then fed into a pulverizer for crushing to obtain the modified rubber powder.

3. The high-toughness quartz stone according to claim 1, characterized in that: Its preparation method specifically includes the following steps: Step 1: Add the required weight of inorganic powder, quartz sand, modified rubber powder, and modified metakaolin to a mixer and mix thoroughly. Step 2: Mix the unsaturated polyester resin, coupling agent, and gel material evenly, then add them to the mixer and mix them evenly with the pre-mixed materials. Then add the curing agent and mix evenly to obtain the mixture. Step 3: Pour the obtained mixture into a molding mold, send it into a pressing device, and vibrate and press it to form a molded sheet. Step 4: Place the obtained molded sheet into an oven and cure it at 80-90℃. After it is completely cured, remove the molded sheet and cool it to room temperature. Step 5: The molded slab cooled to room temperature is fed into a thickness calibrating machine for thickness calibrating, and then the calibrated slab is fed into a polishing machine for polishing to obtain the high-toughness quartz stone.

4. The high-toughness quartz stone according to claim 3, characterized in that: In step 3, during vibration pressing, the vacuum negative pressure is -1MPa, the mechanical pressure is 100T, the vibration frequency is 35Hz, and the pressing time is 5min.

5. A high-toughness quartz stone according to claim 3, characterized in that: In step 1, the stirring speed is 600 r / min and the stirring time is 12 min; in step 2, the stirring speed is 400 r / min and the stirring time is 30 min.

6. The high-toughness quartz stone according to claim 1, characterized in that: The modification steps of the modified metakaolin are as follows: S1, place metakaolin in a kiln and calcine it at 650℃ for 3 hours, then cool it to room temperature; S2, the calcined metakaolin is fed into a solid mixer, and the modification liquid is sprayed directly onto the metakaolin. After mixing and stirring at 800 r / min for 30 min, it is taken out and placed at 120℃ for 20 min to obtain the modified metakaolin.

7. The high-toughness quartz stone according to claim 1, characterized in that: The modified liquid is added at 60% of the amount of metakaolin. The modified liquid is obtained by mixing vinyltriethoxysilane and sulfonated castor oil with ethanol as solvent. The mass fraction of ethanol is 75%, the mass fraction of vinyltriethoxysilane is 1.2%, and the mass fraction of sulfonated castor oil is 0.8%.

8. The high-toughness quartz stone according to claim 1, characterized in that: The gel material is composed of fly ash and volcanic ash in a mass ratio of 2:

1.

9. A high-toughness quartz stone according to claim 1, characterized in that: The coupling agent is a titanate coupling agent.

10. A high-toughness quartz stone according to claim 1, characterized in that: The curing agent is benzoyl peroxide.

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