Wear-resistant ceramic clay and preparation method thereof

Abstract

The invention relates to the technical field of ceramic clay, in particular to wear-resistant ceramic clay and a preparation method thereof.The wear-resistant ceramic clay is prepared from, by weight, 35-40 parts of kieselguhr, 15-20 parts of silicon carbide, 8-12 parts of modifier based on mullite modification, 5-8 parts of modified cordierite agent, 4-7 parts of aluminum oxide, 4-7 parts of calcined talc, 3-5 parts of potassium feldspar and 30-35 parts of water. According to the wear-resistant ceramic clay disclosed by the invention, the diatomite and the silicon carbide are matched with the aluminum oxide, the calcined talc and the potassium feldspar, and the modifier based on mullite modification and the modified cordierite agent are added, so that the wear resistance, the stain resistance and the heat-conducting property of the obtained ceramic clay are coordinated and improved through co-blending and matching of the raw materials and mutual enhancement and improvement of the raw materials; meanwhile, the product is remarkable in anti-damage stability effect.

Description

Technical Field

[0001] The invention relates to the technical field of ceramic clay, and in particular to wear-resistant ceramic clay and a preparation method thereof. Background Art

[0002] Ceramic materials are a type of inorganic non-metallic material made from natural or synthetic compounds through forming and high-temperature sintering. They have a high melting point and excellent chemical stability at high temperatures. Ceramics also have good dimensional stability.

[0003] Existing ceramic clay materials have poor wear resistance. In order to improve the wear resistance of the product, it is easy to cause the ceramic clay materials to have poor stain resistance and thermal conductivity. At the same time, the product has poor anti-destruction stability, which limits the use efficiency of the product. Summary of the invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a wear-resistant ceramic clay and a preparation method thereof to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solution: The present invention provides a wear-resistant ceramic clay, comprising the following raw materials in parts by weight: 35-40 parts of diatomaceous earth, 15-20 parts of silicon carbide, 8-12 parts of a modifier based on mullite modification, 5-8 parts of a modified cordierite agent, 4-7 parts of alumina, 4-7 parts of calcined talc, 3-5 parts of potassium feldspar and 30-35 parts of water.

[0006] Preferably, the wear-resistant ceramic clay comprises the following raw materials in parts by weight: 37.5 parts of diatomaceous earth, 17.5 parts of silicon carbide, 10 parts of a modifier based on modification of mullite, 6.5 parts of a modified cordierite agent, 5.5 parts of alumina, 5.5 parts of calcined talc, 4 parts of potassium feldspar and 32.5 parts of water.

[0007] Preferably, the preparation method of the conditioning agent based on mullite body modification is: S01: preheating mullite at 65-70°C for 1h, then mixing and sintering 4-7 parts of preheated mullite, 3-5 parts of lanthanum oxide and 2-5 parts of nano-titanium dioxide by weight for 1h, the sintering temperature is 550-570°C, and cooling to room temperature after sintering to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 2-5 parts of metakaolin and 1-3 parts of yttrium nitrate solution to 5-8 parts of sodium lignin sulfonate solution by weight, then add 3-4 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modified liquid are stirred and modified at a weight ratio of 2:5, the stirring speed is 550-750 r / min, the stirring is performed for 20-30 min, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and fixing agent are mixed and ball-milled in a weight ratio of 5:3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite modification.

[0008] Preferably, in S021, the acid solution is a sulfuric acid solution with a mass fraction of 5-8%.

[0009] Preferably, in S022, the mass fraction of the yttrium nitrate solution is 5-8%; the mass fraction of the sodium lignin sulfonate solution is 2-5%.

[0010] Preferably, in S04, the ball milling speed of the mixing ball milling treatment is 1150-1250 r / min, and the ball milling is for 1 hour.

[0011] Preferably, the preparation method of the regulating effect-fixing agent is: A 5-8% mass fraction dopamine hydrochloride solution is prepared, and then 2-4 parts of aluminum borate whiskers and 1-3 parts of cerium oxide are added to 5-8 parts of dopamine hydrochloride solution by weight, followed by adding 2-3 parts of carbon nanotubes and 0.5-0.8 parts of barium nitrate solution and mixing thoroughly, and finally filtering and drying to obtain a regulating and fixing agent.

[0012] Preferably, the mass fraction of the barium nitrate solution is 4-6%.

[0013] Preferably, the preparation method of the modified cordierite agent is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: adding 1-3 parts of silane coupling agent KH550 and 2-4 parts of sodium stearate to 5-8 parts of 5% chitosan solution by weight, and then adding 2-4 parts of boron nitride, and mixing them thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

[0014] Preferably, in S11, the mass fraction of the hydrogen peroxide solution is 2-5%; the mass fraction of the potassium permanganate solution is 5-7%.

[0015] The present invention also provides a method for preparing wear-resistant ceramic clay, comprising the following steps: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill, and ball-mill at a speed of 1500-1800r / min for 35-40min. After the ball milling is completed, wash and dry the mixture, and then put it into a pressing machine for molding. Press for 1h at a pressing pressure of 30MPa. After the pressing is completed, sinter it at 1150-1200℃ for 1h. After the sintering is completed, wear-resistant ceramic clay is obtained.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The wear-resistant ceramic clay of the present invention adopts diatomite, silicon carbide, aluminum oxide, calcined talc and potassium feldspar, and adds a regulator based on mullite body modification and a modified cordierite agent. Through the co-adjustment and coordination between the raw materials and the mutual improvement between the raw materials, the wear resistance, stain resistance and thermal conductivity of the ceramic clay are coordinated and improved, and the product has a significant anti-destruction stability effect; the regulator based on mullite body modification adopts mullite after preheating treatment, and then cooperates with lanthanum oxide and nano-titanium dioxide for sintering improvement, and after coordinated optimization and synergy of the modified liquid, the basalt fiber in the modified liquid is irradiated and acid-activated to enhance the coordination between the fiber and kaolin, yttrium nitrate solution and sodium lignin sulfonate solution. Through the co-adjustment and co-assistance between the raw materials, the coordination effect between the modified mullite sintered body and the regulator is enhanced, thereby optimizing the performance effect of the product. The regulator adopts aluminum borate whiskers, cerium oxide, The dopamine hydrochloride solution, carbon nanotubes and barium nitrate solution are co-formulated and improved, with a whisker-like structure combined with a tubular structure, to enhance the interface and load-bearing capacity between the raw materials, thereby carrying the modified mullite sintered body, and then the regulator based on mullite body modification is better dispersed and formulated into the system, further enhancing the performance of the product; the modified cordierite agent uses cordierite to be continuously treated with a hydrogen peroxide solution and a potassium permanganate solution to optimize the activity of the cordierite, and at the same time, a silane coupling agent KH550, sodium stearate, a chitosan solution with a mass fraction of 5% and boron nitride are used for coordination and coordination, and the cordierite liquid obtained through the co-combination and synergy between the raw materials is further formulated to improve the pretreated cordierite, thereby further improving the performance of the product, and then the coordination effect of the modified cordierite agent and the regulator based on mullite body modification is more excellent, thereby further improving the performance of the product. DETAILED DESCRIPTION

[0017] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The wear-resistant ceramic clay of this embodiment includes the following raw materials in parts by weight: 35-40 parts of diatomaceous earth, 15-20 parts of silicon carbide, 8-12 parts of a modifier based on mullite modification, 5-8 parts of a modified cordierite agent, 4-7 parts of alumina, 4-7 parts of calcined talc, 3-5 parts of potassium feldspar and 30-35 parts of water.

[0019] The preparation method of the conditioning agent based on mullite body modification of this embodiment is: S01: preheating mullite at 65-70°C for 1h, then mixing and sintering 4-7 parts of preheated mullite, 3-5 parts of lanthanum oxide and 2-5 parts of nano-titanium dioxide by weight for 1h, the sintering temperature is 550-570°C, and cooling to room temperature after sintering to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 2-5 parts of metakaolin and 1-3 parts of yttrium nitrate solution to 5-8 parts of sodium lignin sulfonate solution by weight, then add 3-4 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modified liquid are stirred and modified at a weight ratio of 2:5, the stirring speed is 550-750 r / min, the stirring is performed for 20-30 min, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and fixing agent are mixed and ball-milled in a weight ratio of 5:3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite modification.

[0020] The acid solution in S021 of this embodiment is a sulfuric acid solution with a mass fraction of 5-8%.

[0021] The mass fraction of the yttrium nitrate solution in S022 of this embodiment is 5-8%; the mass fraction of the sodium lignin sulfonate solution is 2-5%.

[0022] The ball milling speed of the mixing ball milling treatment in S04 of this embodiment is 1150~1250r / min, and the ball milling is 1h.

[0023] The preparation method of the regulating effect-fixing agent of this embodiment is: A 5-8% mass fraction dopamine hydrochloride solution is prepared, and then 2-4 parts of aluminum borate whiskers and 1-3 parts of cerium oxide are added to 5-8 parts of dopamine hydrochloride solution by weight, followed by adding 2-3 parts of carbon nanotubes and 0.5-0.8 parts of barium nitrate solution and mixing thoroughly, and finally filtering and drying to obtain a regulating and fixing agent.

[0024] The mass fraction of the barium nitrate solution in this embodiment is 4-6%.

[0025] The preparation method of the modified cordierite agent of this embodiment is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: adding 1-3 parts of silane coupling agent KH550 and 2-4 parts of sodium stearate to 5-8 parts of 5% chitosan solution by weight, and then adding 2-4 parts of boron nitride, and mixing them thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

[0026] The mass fraction of the hydrogen peroxide solution in S11 of this embodiment is 2-5%; the mass fraction of the potassium permanganate solution is 5-7%.

[0027] A method for preparing wear-resistant ceramic clay in this embodiment comprises the following steps: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill, and ball-mill at a speed of 1500-1800r / min for 35-40min. After the ball milling is completed, wash and dry the mixture, and then put it into a pressing machine for molding. Press for 1h at a pressing pressure of 30MPa. After the pressing is completed, sinter it at 1150-1200℃ for 1h. After the sintering is completed, wear-resistant ceramic clay is obtained.

[0028] Embodiment 1: A wear-resistant ceramic clay, comprising the following raw materials in parts by weight: 35 parts of diatomaceous earth, 15 parts of silicon carbide, 8 parts of a modifier based on modification of mullite, 5 parts of a modified cordierite agent, 4 parts of alumina, 4 parts of calcined talc, 3 parts of potassium feldspar and 30 parts of water.

[0029] The preparation method of the conditioning agent based on mullite body modification of this embodiment is: S01: preheating mullite at 65°C for 1 hour, then mixing and sintering 4 parts of preheated mullite, 3 parts of lanthanum oxide and 2 parts of nano-titanium dioxide by weight for 1 hour at a sintering temperature of 550°C. After sintering, cooling to room temperature was performed to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at an irradiation power of 350W. After the irradiation is completed, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 2 parts of metakaolin and 1 part of yttrium nitrate solution to 5 parts of sodium lignin sulfonate solution by weight, then add 3 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modifying liquid are stirred and modified in a weight ratio of 2:5, the stirring speed is 550r / min, the stirring is performed for 20min, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and fixing agent are mixed and ball-milled in a weight ratio of 5:3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite modification.

[0030] The acid solution in this embodiment is a 5% by mass sulphuric acid solution.

[0031] The mass fraction of the yttrium nitrate solution in this embodiment is 5%; the mass fraction of the sodium lignin sulfonate solution is 2%.

[0032] The ball milling speed of the mixing ball milling treatment in this embodiment is 1150r / min, and the ball milling is 1h.

[0033] The preparation method of the regulating effect-fixing agent of this embodiment is: A 5% mass fraction dopamine hydrochloride solution was prepared, and then 2 parts of aluminum borate whiskers and 1 part of cerium oxide were added to 5 parts of the dopamine hydrochloride solution by weight, followed by adding 2 parts of carbon nanotubes and 0.5 parts of barium nitrate solution and mixing thoroughly, and finally filtered and dried to obtain a regulating and fixing agent.

[0034] The mass fraction of the barium nitrate solution in this embodiment is 4%.

[0035] The preparation method of the modified cordierite agent of this embodiment is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: adding 1 part of silane coupling agent KH550 and 2 parts of sodium stearate to 5 parts of 5% chitosan solution by weight, and then adding 2 parts of boron nitride, and mixing them thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

[0036] The mass fraction of the hydrogen peroxide solution in this embodiment is 2%; the mass fraction of the potassium permanganate solution is 5%.

[0037] A method for preparing wear-resistant ceramic clay in this embodiment comprises the following steps: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill, and ball-mill at a speed of 1500r / min for 35 minutes. After the ball milling is completed, wash and dry the mixture, and then put it into a pressing machine for molding. Press for 1 hour at a pressing pressure of 30MPa. After the pressing is completed, sinter it at 1150°C for 1 hour. After the sintering is completed, wear-resistant ceramic clay is obtained.

[0038] Embodiment 2: A wear-resistant ceramic clay, comprising the following raw materials in parts by weight: 40 parts of diatomaceous earth, 20 parts of silicon carbide, 12 parts of a modifier based on modification of mullite, 8 parts of a modified cordierite agent, 7 parts of alumina, 7 parts of calcined talc, 5 parts of potassium feldspar and 35 parts of water.

[0039] The preparation method of the conditioning agent based on mullite body modification of this embodiment is: S01: preheating mullite at 70°C for 1 hour, then mixing and sintering 7 parts of preheated mullite, 5 parts of lanthanum oxide and 5 parts of nano-titanium dioxide by weight for 1 hour, the sintering temperature is 570°C, and after sintering, cooling to room temperature to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at a power of 400W. After the irradiation is completed, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 5 parts of metakaolin and 3 parts of yttrium nitrate solution to 8 parts of sodium lignin sulfonate solution by weight, then add 4 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modifying liquid are stirred and modified in a weight ratio of 2:5, the stirring speed is 750r / min, the stirring is performed for 30min, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and fixing agent are mixed and ball-milled in a weight ratio of 5:3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite modification.

[0040] The acid solution in this embodiment is a sulfuric acid solution with a mass fraction of 8%.

[0041] The mass fraction of the yttrium nitrate solution in this embodiment is 8%; the mass fraction of the sodium lignin sulfonate solution is 5%.

[0042] The mixing ball milling process in this embodiment has a ball milling speed of 1250 r / min and the ball milling is performed for 1 hour.

[0043] The preparation method of the regulating effect-fixing agent of this embodiment is: A dopamine hydrochloride solution with a mass fraction of 8% was prepared, and then 4 parts of aluminum borate whiskers and 3 parts of cerium oxide were added to 8 parts of the dopamine hydrochloride solution by weight, followed by adding 3 parts of carbon nanotubes and 0.8 parts of barium nitrate solution and mixing thoroughly, and finally filtered and dried to obtain a regulating and fixing agent.

[0044] The mass fraction of the barium nitrate solution in this embodiment is 6%.

[0045] The preparation method of the modified cordierite agent of this embodiment is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: 3 parts by weight of silane coupling agent KH550 and 4 parts of sodium stearate are added to 8 parts of 5% chitosan solution, and then 4 parts of boron nitride are added and mixed thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

[0046] The mass fraction of the hydrogen peroxide solution in this embodiment is 5%; the mass fraction of the potassium permanganate solution is 7%.

[0047] A method for preparing wear-resistant ceramic clay in this embodiment comprises the following steps: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill, and ball-mill at a speed of 1800r / min for 40 minutes. After the ball milling is completed, wash and dry the mixture, and then put it into a pressing machine for molding. Press for 1 hour at a pressing pressure of 30MPa. After the pressing is completed, sinter it at 1200℃ for 1 hour. After sintering, wear-resistant ceramic clay is obtained.

[0048] Embodiment 3: A wear-resistant ceramic clay, comprising the following raw materials in parts by weight: 37.5 parts of diatomaceous earth, 17.5 parts of silicon carbide, 10 parts of a modifier based on modification of mullite, 6.5 parts of a modified cordierite agent, 5.5 parts of alumina, 5.5 parts of calcined talc, 4 parts of potassium feldspar and 32.5 parts of water.

[0049] The preparation method of the conditioning agent based on mullite body modification of this embodiment is: S01: preheating mullite at 67.5°C for 1 hour, then mixing and sintering 5.5 parts of preheated mullite, 4 parts of lanthanum oxide and 3.5 parts of nano-titanium dioxide by weight for 1 hour, the sintering temperature is 560°C, and after sintering, cooling to room temperature to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at an irradiation power of 375W. After the irradiation is completed, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 3.5 parts of metakaolin and 2 parts of yttrium nitrate solution to 6.5 parts of sodium lignin sulfonate solution by weight, then add 3.5 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modifying liquid are stirred and modified at a weight ratio of 2:5, the stirring speed is 600 r / min, the stirring is performed for 25 minutes, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and fixing agent are mixed and ball-milled in a weight ratio of 5:3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite modification.

[0050] The acid solution in this embodiment is a sulfuric acid solution with a mass fraction of 6.5%.

[0051] The mass fraction of the yttrium nitrate solution in this embodiment is 6.5%; the mass fraction of the sodium lignin sulfonate solution is 3.5%.

[0052] The ball milling speed of the mixing ball milling treatment in this embodiment is 1200 r / min, and the ball milling is 1 hour.

[0053] The preparation method of the regulating effect-fixing agent of this embodiment is: A 6.5% mass fraction dopamine hydrochloride solution was prepared, and then 3 parts of aluminum borate whiskers and 2 parts of cerium oxide were added to 6.5 parts of dopamine hydrochloride solution by weight, followed by adding 2.5 parts of carbon nanotubes and 0.65 parts of barium nitrate solution and mixing thoroughly, and finally filtered and dried to obtain a regulating and fixing agent.

[0054] The mass fraction of the barium nitrate solution in this embodiment is 5%.

[0055] The preparation method of the modified cordierite agent of this embodiment is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: adding 2 parts of silane coupling agent KH550 and 3 parts of sodium stearate to 6.5 parts of 5% chitosan solution by weight, and then adding 3 parts of boron nitride, and mixing them thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

[0056] The mass fraction of the hydrogen peroxide solution in this embodiment is 3.5%; the mass fraction of the potassium permanganate solution is 6%.

[0057] A method for preparing wear-resistant ceramic clay in this embodiment comprises the following steps: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill and mill at a speed of 1650r / min for 37.5min. After the ball milling is completed, wash and dry the mixture and put it into a pressing machine for molding. Press for 1h at a pressing pressure of 30MPa. After the pressing is completed, sinter the mixture at 1175°C for 1h. After the sintering is completed, wear-resistant ceramic clay is obtained.

[0058] Comparative Example 1: The difference from Example 3 is that no modifier based on mullite modification is added.

[0059] Comparative Example 2: The difference from Example 3 is that no modified mullite sintered body is added in the preparation of the regulator based on the modification of the mullite body.

[0060] Comparative Example 3: The difference from Example 3 is that no modifying liquid treatment is used in the preparation of the modified mullite sintered body.

[0061] Comparative Example 4: The difference from Example 3 is that the basalt fiber treated with S021 is not added to the modified solution.

[0062] Comparative Example 5: The difference from Example 3 is that no metakaolin or yttrium nitrate solution is added to the modified solution.

[0063] Comparative Example 6: The difference from Example 3 is that no mullite sintered body is added in the preparation of the modified mullite sintered body.

[0064] Comparative Example 7: The difference from Example 3 is that lanthanum oxide and nano-titanium dioxide are not added in the preparation of the mullite sintered body.

[0065] Comparative Example 8: The difference from Example 3 is that no regulating and stabilizing agent is added in the preparation of the regulating agent based on mullite modification.

[0066] Comparative Example 9: The difference from Example 3 is that no modified cordierite agent is added.

[0067] Comparative Example 10: The difference from Example 3 is that no cordierite liquid is added in the preparation of the modified cordierite agent.

[0068] Comparative Example 11: The difference from Example 3 is that boron nitride and silane coupling agent KH550 are not added to the cordierite liquid.

[0069] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were subjected to performance tests under conventional conditions to test wear resistance, stain resistance and thermal conductivity. At the same time, the products were treated with a destructive strength of 500N for 12 hours and subjected to performance tests under anti-destructive conditions. The test results are shown in Table 1.

[0070] Table 1 Product performance test results of Examples 1 to 3 and Comparative Examples 1 to 11; It can be seen from Comparative Examples 1 to 11 and Examples 1 to 3 that the product of Example 3 has excellent thermal conductivity, wear resistance and anti-fouling level, and the thermal conductivity, wear resistance and anti-fouling performance of the product are improved in a coordinated manner, and the anti-destruction stability of the product is remarkable; From Comparative Examples 1 to 11 and Example 3, it can be seen that the performance of the products without adding a mullite-based modifier or a modified cordierite agent is obviously deteriorating. The performance of the products is most significant when the two are coordinated and work together. The performance of the products of the mullite-modified regulator based on the preparation of which the modified mullite sintered body is not added, the modified mullite sintered body is not treated with the modifying liquid, the basalt fiber treated with S021 is not added to the modifying liquid, the modified mullite sintered body is not added with the kaolin and yttrium nitrate solution, the mullite sintered body is not added to the modified mullite sintered body, the mullite sintered body is not added with lanthanum oxide and nano-titanium dioxide, and the mullite-modified regulator is not added with the regulator. The performance of the products has a tendency to deteriorate to varying degrees. The modified mullite sintered body prepared by the modifying liquid obtained by the specific method of the present invention and the mullite sintered body, and the mullite-modified regulator obtained by the modifying agent of the present invention have the most significant performance effect. At the same time, no cordierite liquid is added in the preparation of the modified cordierite agent, and no boron nitride and silane coupling agent KH550 are added to the cordierite liquid. The performance of the products tends to deteriorate to varying degrees. The modified cordierite agent made from the cordierite liquid obtained by the specific method of the present invention has obvious performance effects. The modified cordierite agent obtained by the specific method and the regulator based on mullite body modification work together to enhance the synergy, and the performance effect of the product is the most significant.

[0071] Based on the above tests, continue to test the effect of adjusting the fixative on the performance of the product.

[0072] Experimental Example 1: The same as Example 3, except that no aluminum borate whiskers were added in the preparation of the regulating effect agent.

[0073] Experimental Example 2: The same as Example 3, except that carbon nanotubes are not added in the preparation of the regulating effect agent.

[0074] Experimental Example 3: The same as Example 3, except that cerium oxide is not added in the preparation of the regulating effect agent.

[0075] Experimental Example 4: The same as Example 3, except that no barium nitrate solution was added in the preparation of the regulating effect agent.

[0076] Experimental Example 5: The same as Example 3, the only difference is that the dopamine hydrochloride solution is replaced by water in the preparation of the regulating effect agent.

[0077] The products of Experimental Examples 1 to 5 were subjected to performance tests under conventional conditions to test wear resistance, stain resistance and thermal conductivity. At the same time, the products were treated with a destructive strength of 500N for 12 hours and tested for performance under anti-destructive conditions. The test results are shown in Table 2.

[0078] Table 2 Product performance test results of Experimental Examples 1 to 5; It can be seen from Experimental Examples 1-5 that aluminum borate whiskers were not added in the preparation of the regulating and stabilizing agent, and the performance of the product deteriorated significantly. At the same time, no carbon nanotubes were added, no barium nitrate solution was added, the dopamine hydrochloride solution was replaced by water, and no cerium oxide was added, and the performance of the product was poor. Therefore, the use of aluminum borate whiskers in combination with the specific raw materials of the present invention has the most significant performance effect of the product. The use of other raw materials is not as obvious as that of the present invention. The whisker-like structure of aluminum borate whiskers is combined with the tubular structure of carbon nanotubes to enhance the interface and load-bearing capacity between the raw materials, thereby supporting the harmonized modified mullite sintered body, and then the regulator based on mullite body modification is better dispersed and formulated into the system, further enhancing the performance effect of the product.

[0079] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0080] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wear-resistant ceramic clay, characterized in that: It includes the following raw materials in parts by weight: 35-40 parts of diatomaceous earth, 15-20 parts of silicon carbide, 8-12 parts of a modifier based on mullite modification, 5-8 parts of a modified cordierite agent, 4-7 parts of alumina, 4-7 parts of calcined talc, 3-5 parts of potassium feldspar and 30-35 parts of water; The preparation method of the conditioning agent based on mullite body modification is: S01: preheating mullite at 65-70°C for 1h, then mixing and sintering 4-7 parts of preheated mullite, 3-5 parts of lanthanum oxide and 2-5 parts of nano-titanium dioxide by weight for 1h, the sintering temperature is 550-570°C, and cooling to room temperature after sintering to obtain a mullite sintered body; S02: Prepare the modified solution as follows: S021: irradiate the basalt fiber in a proton irradiation box for 1 hour at an irradiation power of 350-400W. After the irradiation, add the irradiated basalt fiber into a sufficient amount of acid solution and mix well, then wash, filter and dry; S022: Add 2-5 parts of metakaolin and 1-3 parts of yttrium nitrate solution to 5-8 parts of sodium lignin sulfonate solution by weight, then add 3-4 parts of basalt fiber treated with S021, stir well, and obtain a modified solution; S03: The mullite sintered body and the modified liquid are stirred and modified in a weight ratio of 2:5, the stirring speed is 550-750 r / min, the stirring is performed for 20-30 min, and the stirring is completed to obtain a modified mullite sintered body; S04: The modified mullite sintered body and the regulating and stabilizing agent are mixed and ball-milled in a weight ratio of 5:

3. After the ball-milling is completed, the mixture is filtered and dried to obtain a regulating agent based on mullite body modification.

2. The wear-resistant ceramic clay according to claim 1, characterized in that: The wear-resistant ceramic clay comprises the following raw materials in parts by weight: 37.5 parts of diatomaceous earth, 17.5 parts of silicon carbide, 10 parts of a modifier based on mullite modification, 6.5 parts of a modified cordierite agent, 5.5 parts of alumina, 5.5 parts of calcined talc, 4 parts of potassium feldspar and 30-35 parts of water.

3. The wear-resistant ceramic clay according to claim 1, characterized in that: In S021, the acid solution is a sulfuric acid solution with a mass fraction of 5-8%.

4. The wear-resistant ceramic clay according to claim 1, characterized in that: In S022, the mass fraction of the yttrium nitrate solution is 5-8%; the mass fraction of the sodium lignin sulfonate solution is 2-5%.

5. The wear-resistant ceramic clay according to claim 1, characterized in that: In S04, the ball milling speed of the mixing ball milling treatment is 1150-1250 r / min, and the ball milling is performed for 1 hour.

6. The wear-resistant ceramic clay according to claim 1, characterized in that: The preparation method of the regulating effect-fixing agent is as follows: A 5-8% mass fraction dopamine hydrochloride solution is prepared, and then 2-4 parts of aluminum borate whiskers and 1-3 parts of cerium oxide are added to 5-8 parts of dopamine hydrochloride solution by weight, followed by adding 2-3 parts of carbon nanotubes and 0.5-0.8 parts of barium nitrate solution and mixing thoroughly, and finally filtering and drying to obtain a regulating and fixing agent.

7. The wear-resistant ceramic clay according to claim 6, characterized in that: The mass fraction of the barium nitrate solution is 4-6%.

8. The wear-resistant ceramic clay according to claim 1, characterized in that: The preparation method of the modified cordierite agent is: S11: placing the cordierite in a sufficient amount of hydrogen peroxide solution for treatment at a temperature of 50° C. for 1 hour, washing with water after the treatment is completed, and then treating it in a potassium permanganate solution for 2 hours at a temperature of 52° C. After the treatment is completed, washing with water and drying to obtain pretreated cordierite; S12: adding 1-3 parts of silane coupling agent KH550 and 2-4 parts of sodium stearate to 5-8 parts of 5% chitosan solution by weight, and then adding 2-4 parts of boron nitride, and mixing them thoroughly to obtain cordierite liquid; The pretreated cordierite and cordierite liquid are fully stirred in a weight ratio of 3:5, and finally filtered and dried to obtain a modified cordierite agent.

9. The wear-resistant ceramic clay according to claim 8, characterized in that: In S11, the mass fraction of the hydrogen peroxide solution is 2-5%; the mass fraction of the potassium permanganate solution is 5-7%.

10. A method for preparing wear-resistant ceramic clay, for preparing the wear-resistant ceramic clay as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Add diatomaceous earth, silicon carbide, a regulator based on mullite modification, a modified cordierite agent, alumina, calcined talc, potassium feldspar and water into a ball mill, and ball-mill at a speed of 1500-1800r / min for 35-40min. After the ball milling is completed, wash and dry the mixture, and then put it into a pressing machine for molding. Press for 1h at a pressing pressure of 30MPa. After the pressing is completed, sinter it at 1150-1200℃ for 1h. After the sintering is completed, wear-resistant ceramic clay is obtained.

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