High-temperature-resistant domestic ceramic product and preparation method thereof

Abstract

The invention relates to the technical field of domestic ceramics, in particular to a high-temperature-resistant domestic ceramic product and a preparation method thereof, and the high-temperature-resistant domestic ceramic product is prepared from the following raw materials in parts by weight: 35-40 parts of potassium feldspar, 15-20 parts of albite, 8-12 parts of porcelain clay, 6-9 parts of boron-doped silicon nitride additive, 4-7 parts of calcined talc, 4-6 parts of modified functional agent and 4-7 parts of nano zinc oxide. According to the domestic ceramic product disclosed by the invention, the potassium feldspar is matched with the albite, the porcelain clay, the calcined talc and the nano-zinc oxide, meanwhile, the boron-doped silicon nitride additive and the modifying functional agent are added, and the high-temperature deformation resistance, the antibacterial property and the skid resistance of the prepared domestic ceramic product are harmoniously improved through blending, matching and joint synergism of the raw materials; meanwhile, the washing stability effect of the product is remarkable.

Description

Technical Field

[0001] The present invention relates to the technical field of daily-use ceramics, and particularly relates to a high-temperature resistant daily-use ceramic product and a preparation method thereof. Background Art

[0002] The emergence of daily-use ceramics can be said to be due to people's needs in daily life. Porcelain that people come into contact with and are most familiar with in daily life, such as tableware, tea sets, coffee sets, wine sets, rice bowls, etc., are classified by porcelain types. Currently, the main types of porcelain in circulation on the market include fine daily-use porcelain, ordinary daily-use porcelain, stoneware for daily use, bone china, delicate daily-use porcelain, underglaze (medium) color daily-use porcelain, fine earthenware for daily use, etc.

[0003] In order to enhance the antibacterial property of existing daily-use ceramic products, nano-inorganic antibacterial particles are added. However, nano materials are prone to agglomeration, which instead affects the performance of the products. In addition, the products are prone to deformation under high-temperature conditions, with poor high-temperature deformation resistance. At the same time, the anti-slip property of the products is poor, and the performance coordination of the products is not ideal. Moreover, the washing stability of the products is poor, which limits the use efficiency of the products. Summary of the Invention

[0004] Aiming at the defects of the existing technology, the purpose of the present invention is to provide a high-temperature resistant daily-use ceramic product and a preparation method thereof to solve the problems raised in the above background art.

[0005] The present invention adopts the following technical solutions to solve the technical problems: The present invention provides a high-temperature resistant daily-use ceramic product, which comprises the following raw materials in parts by weight: 35 - 40 parts of potassium feldspar, 15 - 20 parts of sodium feldspar, 8 - 12 parts of kaolin, 6 - 9 parts of boron-doped silicon nitride additive, 4 - 7 parts of calcined talc, 4 - 6 parts of modified functional agent, 4 - 7 parts of nano-zinc oxide.

[0006] Preferably, the daily-use ceramic product comprises the following raw materials in parts by weight: 37.5 parts of potassium feldspar, 17.5 parts of sodium feldspar, 10 parts of kaolin, 7 parts of boron-doped silicon nitride additive, 5.5 parts of calcined talc, 5 parts of modified functional agent, 5.5 parts of nano-zinc oxide.

[0007] Preferably, the preparation method of the boron-doped silicon nitride additive is as follows: S01: Add 2 - 5 parts of boron oxide and 1 - 3 parts of barium titanate to 5 - 8 parts of lanthanum chloride solution by weight, and stir evenly to obtain a boron-doped blending solution; S02: Blend and sinter 3 - 5 parts of cordierite powder, 2 - 4 parts of bentonite and 2 - 3 parts of zirconia by weight. After sintering, a composite body is obtained; The composite and the boron-doped blending liquid are fully mixed in a weight ratio of (4-5):7 to obtain a boron-containing synergistic liquid; S03: The silicon nitride additive and the boron-containing enhancing liquid are mixed and ball-milled in a weight ratio of (5-7):3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a silicon nitride additive doped with boron.

[0008] Preferably, the mass fraction of the lanthanum chloride solution is 2-5%; the sintering temperature of the blended sintering treatment is 350-370° C., and the sintering is performed for 1 hour.

[0009] Preferably, the preparation method of the silicon nitride additive is: S03a: preheat the silicon nitride at 55-60°C for 15-20 minutes, and then place it in a proton irradiation box for 1 hour at an irradiation power of 350-370W to obtain pretreated silicon nitride; S03b: 3-5 parts of mullite, 1-2 parts of yttrium oxide, and 3-5 parts of sodium dodecylbenzene sulfonate solution are mixed evenly by weight, and then 2-3 parts of aluminum borate whiskers and 1-2 parts of illite are added and mixed thoroughly to obtain a treatment liquid; the pretreated silicon nitride and the treatment liquid are ultrasonically treated at a weight ratio of 3:5. After the treatment is completed, the silicon nitride additive is obtained by filtering and drying.

[0010] Preferably, the ultrasonic power of the ultrasonic treatment is 350-400W, the ultrasonic treatment is for 1 hour, and the mass fraction of the sodium dodecylbenzene sulfonate solution is 5-8%.

[0011] Preferably, the preparation method of the modified functional agent is: S11: adding 3-5 parts of basalt fiber, 1-2 parts of nano-silica sol and 2-3 parts of magnesium oxide to 5-8 parts of sodium lignin sulfonate solution by weight, stirring evenly to obtain a functional liquid; S12: cerium oxide and titanium oxide are mixed and sintered in a weight ratio of 3:2 at a sintering temperature of 210-220°C for 1 hour to obtain a sintered body; the sintered body and the functional liquid are mixed and uniformly mixed in a weight ratio of 5:8, and then filtered and dried to obtain a modified functional agent.

[0012] Preferably, the mass fraction of the sodium lignin sulfonate solution is 5-8%.

[0013] Preferably, the basalt fiber has a diameter of 10-15 μm and a length of 0.5-1 mm.

[0014] The present invention also provides a method for preparing a high temperature resistant daily-use ceramic product, comprising the following steps: Weigh the raw materials for the high-temperature resistant daily-use ceramic products by weight parts, mix the raw materials evenly and grind them fully by wet ball milling, then form them in a mold for 1 h under a forming pressure of 100 MPa, and sinter them at 1250 °C for 1 h after the forming is completed. After the sintering is completed, the daily-use ceramic products are obtained.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The daily-use ceramic products of the present invention use potassium feldspar in combination with sodium feldspar, kaolin, calcined talc and nano-zinc oxide, and at the same time add a silicon nitride additive doped with boron and a modification functional agent. Through the coordination and cooperation of the raw materials, they work together to enhance the effect. The high-temperature deformation resistance, antibacterial property and anti-slip property of the made daily-use ceramic products are coordinately improved, and at the same time, the washing stability effect of the products is remarkable; 2. The silicon nitride additive doped with boron is made into a boron-doped blending solution by using boron oxide, barium titanate and lanthanum chloride solution, and at the same time, it is improved by co-mixing and sintering cordierite powder, bentonite and zirconia. Through the mutual coordination and optimization of the composite body and the boron-doped blending solution, and the mutual cooperation and synergy of the raw materials, the obtained boron-containing synergistic solution optimizes the performance coordination and washing resistance stability of the product in the system. At the same time, the added silicon nitride additive is preheated by silicon nitride, then irradiated to stimulate its active efficiency, and then coordinated with mullite, yttrium oxide and sodium dodecylbenzenesulfonate solution, and then mutually coordinated and synergized by adding aluminum borate whiskers and illite. The whisker structure of the aluminum borate whiskers is used to allocate the raw materials of illite, mullite and yttrium oxide, so as to further optimize the system performance coordination and performance stability in the system; 3. The modification functional agent is optimized by blending basalt fiber, nano-silica sol, magnesium oxide and sodium lignosulfonate solution. Through the acicular structure of basalt fiber and raw materials such as magnesium oxide, through the co-allocation and synergy of the raw materials and the coordinated promotion, the performance effect of the system is further optimized. At the same time, it is improved by co-mixing and sintering cerium oxide and titanium oxide. The coordination effect of the made modification functional agent and the silicon nitride additive doped with boron is better, so that the performance of the product is further improved. Specific Embodiments

[0016] The following combines specific embodiments to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0017] A high-temperature resistant daily-use ceramic product of this embodiment includes the following raw materials by weight parts: 35-40 parts of potassium feldspar, 15-20 parts of sodium feldspar, 8-12 parts of china clay, 6-9 parts of boron-doped silicon nitride additive, 4-7 parts of calcined talc, 4-6 parts of modified functional agent, and 4-7 parts of nano zinc oxide.

[0018] The preparation method of the boron-doped silicon nitride additive of this embodiment is as follows: S01: Add 2-5 parts of boron oxide and 1-3 parts of barium titanate to 5-8 parts of lanthanum chloride solution by weight, stir evenly, and obtain a boron-doped blended solution; S02: 3-5 parts of cordierite powder, 2-4 parts of bentonite and 2-3 parts of zirconium oxide are mixed and sintered according to weight, and the sintering is completed to obtain a composite; The composite and the boron-doped blending liquid are fully mixed in a weight ratio of (4-5):7 to obtain a boron-containing synergistic liquid; S03: The silicon nitride additive and the boron-containing enhancing liquid are mixed and ball-milled in a weight ratio of (5-7):3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a silicon nitride additive doped with boron.

[0019] The mass fraction of the lanthanum chloride solution in this embodiment is 2-5%; the sintering temperature of the blended sintering treatment is 350-370° C., and the sintering is performed for 1 hour.

[0020] The preparation method of the silicon nitride additive of this embodiment is: S03a: preheat the silicon nitride at 55-60°C for 15-20 minutes, and then place it in a proton irradiation box for 1 hour at an irradiation power of 350-370W to obtain pretreated silicon nitride; S03b: 3-5 parts of mullite, 1-2 parts of yttrium oxide, and 3-5 parts of sodium dodecylbenzene sulfonate solution are mixed evenly by weight, and then 2-3 parts of aluminum borate whiskers and 1-2 parts of illite are added and mixed thoroughly to obtain a treatment liquid; the pretreated silicon nitride and the treatment liquid are ultrasonically treated at a weight ratio of 3:5. After the treatment is completed, the silicon nitride additive is obtained by filtering and drying.

[0021] The ultrasonic power of the ultrasonic treatment in this embodiment is 350-400 W, and the ultrasonic treatment is performed for 1 hour; the mass fraction of the sodium dodecylbenzene sulfonate solution is 5-8%.

[0022] The preparation method of the modified functional agent of this embodiment is: S11: adding 3-5 parts of basalt fiber, 1-2 parts of nano-silica sol and 2-3 parts of magnesium oxide to 5-8 parts of sodium lignin sulfonate solution by weight, stirring evenly to obtain a functional liquid; S12: cerium oxide and titanium oxide are mixed and sintered in a weight ratio of 3:2 at a sintering temperature of 210-220°C for 1 hour to obtain a sintered body; the sintered body and the functional liquid are mixed and uniformly mixed in a weight ratio of 5:8, and then filtered and dried to obtain a modified functional agent.

[0023] The mass fraction of the sodium lignin sulfonate solution in this embodiment is 5-8%.

[0024] The basalt fiber of this embodiment has a diameter of 10-15 μm and a length of 0.5-1 mm.

[0025] A method for preparing a high temperature resistant daily-use ceramic product of this embodiment comprises the following steps: The raw materials of high temperature resistant daily-use ceramic products are weighed according to weight proportions, the raw materials are mixed and wet-milled thoroughly, and then formed in a mold for 1 hour with a molding pressure of 100 MPa. After the molding is completed, the raw materials are sintered at 1250°C for 1 hour. After the sintering is completed, the daily-use ceramic products are obtained.

[0026] Example 1: A high temperature resistant daily-use ceramic product, comprising the following raw materials in parts by weight: 35 parts of potassium feldspar, 15 parts of sodium feldspar, 8 parts of china clay, 6 parts of boron-doped silicon nitride additive, 4 parts of calcined talc, 4 parts of modified functional agent, and 4 parts of nano zinc oxide.

[0027] The preparation method of the boron-doped silicon nitride additive of this embodiment is as follows: S01: Add 2 parts of boron oxide and 1 part of barium titanate to 5 parts of lanthanum chloride solution by weight, stir evenly, and obtain a boron-doped blended solution; S02: 3 parts of cordierite powder, 2 parts of bentonite and 2 parts of zirconium oxide are mixed and sintered according to weight, and the sintering is completed to obtain a composite; The composite and the boron-doped blending liquid are fully mixed in a weight ratio of 4:7 to obtain a boron-containing synergistic liquid; S03: The silicon nitride additive and the boron-containing enhancing liquid are mixed and ball-milled in a weight ratio of 5:3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a silicon nitride additive doped with boron.

[0028] The mass fraction of the lanthanum chloride solution in this embodiment is 2%; the sintering temperature of the blended sintering treatment is 350° C., and the sintering is performed for 1 hour.

[0029] The preparation method of the silicon nitride additive of this embodiment is: S03a: preheating silicon nitride at 55°C for 15 minutes, and then irradiating it in a proton irradiation box for 1 hour at an irradiation power of 350W to obtain pretreated silicon nitride; S03b: Blend 3 parts of mullite, 1 part of yttrium oxide, and 3 parts of sodium dodecylbenzenesulfonate solution evenly by weight, then add 2 parts of aluminum borate whiskers and 1 part of illite and blend well to obtain a treatment solution; subject the pretreated silicon nitride and the treatment solution to ultrasonic treatment at a weight ratio of 3:5. After the treatment, filter by suction and dry to obtain a silicon nitride additive.

[0030] In this example, the ultrasonic power of the ultrasonic treatment is 350 W, and the ultrasonic treatment is carried out for 1 h; the mass fraction of the sodium dodecylbenzenesulfonate solution is 5%.

[0031] The preparation method of the modified functional agent in this example is as follows: S11: Add 3 parts of basalt fiber, 1 part of nano-silica sol, and 2 parts of magnesium oxide to 5 parts of sodium lignosulfonate solution by weight, and stir evenly to obtain a functional solution; S12: Blend and sinter cerium oxide and titanium oxide at a weight ratio of 3:2. The sintering temperature is 210 °C, and the sintering is carried out for 1 h to obtain a sintered body; stir the sintered body and the functional solution evenly at a weight ratio of 5:8, then filter by suction and dry to obtain a modified functional agent.

[0032] In this example, the mass fraction of the sodium lignosulfonate solution is 5%.

[0033] In this example, the diameter of the basalt fiber is 10 μm, and the length is 0.5 mm.

[0034] The preparation method of a heat-resistant household ceramic product in this example includes the following steps: Weigh the raw materials of the heat-resistant household ceramic product by weight, mix the raw materials evenly and wet ball mill them sufficiently, then mold them in a mold for 1 h, with a molding pressure of 100 MPa. After the molding, sinter them at 1250 °C for 1 h. After the sintering, a household ceramic product is obtained.

[0035] Example 2: A heat-resistant household ceramic product, including the following raw materials by weight: 40 parts of potassium feldspar, 20 parts of sodium feldspar, 12 parts of kaolin, 9 parts of boron-doped silicon nitride additive, 7 parts of calcined talc, 6 parts of modified functional agent, 7 parts of nano-zinc oxide.

[0036] The preparation method of the boron-doped silicon nitride additive in this example is as follows: S01: Add 5 parts of boron oxide and 3 parts of barium titanate to 8 parts of lanthanum chloride solution by weight, and stir evenly to obtain a boron-doped blending solution; S02: Blend and sinter 5 parts of cordierite powder, 4 parts of bentonite, and 3 parts of zirconia by weight. After the sintering, a composite body is obtained; Blend the composite body and the boron-doped blending solution sufficiently at a weight ratio of 5:7 to obtain a boron-containing synergistic solution; S03: Blend and ball-mill silicon nitride additive and boron-containing synergistic solution at a weight ratio of 7:3. The ball-milling speed is 1500 r / min, and ball-mill for 2 h. After ball-milling, perform suction filtration and drying to obtain boron-doped silicon nitride additive.

[0037] In this example, the mass fraction of the lanthanum chloride solution is 5%; the sintering temperature for the blend sintering treatment is 370 °C, and sinter for 1 h.

[0038] The preparation method of the silicon nitride additive in this example is as follows: S03a: Preheat silicon nitride at 60 °C for 20 min, and then place it in a proton irradiation chamber for irradiation for 1 h. The irradiation power is 370 W to obtain pretreated silicon nitride. S03b: Blend 5 parts of mullite, 2 parts of yttrium oxide, and 5 parts of sodium dodecylbenzenesulfonate solution by weight and mix evenly. Subsequently, add 3 parts of aluminum borate whiskers and 2 parts of illite and mix thoroughly to obtain a treatment solution; ultrasonically treat the pretreated silicon nitride and the treatment solution at a weight ratio of 3:5. After the treatment, perform suction filtration and drying to obtain silicon nitride additive.

[0039] In this example, the ultrasonic power for the ultrasonic treatment is 400 W, and ultrasonic for 1 h; the mass fraction of the sodium dodecylbenzenesulfonate solution is 8%.

[0040] The preparation method of the modified functional agent in this example is as follows: S11: Add 5 parts of basalt fiber, 2 parts of nano-silica sol, and 3 parts of magnesium oxide by weight to 8 parts of sodium lignosulfonate solution and stir evenly to obtain a functional solution. S12: Blend and sinter cerium oxide and titanium oxide at a weight ratio of 3:2. The sintering temperature is 220 °C, and sinter for 1 h to obtain a sintered body; stir the sintered body and the functional solution evenly at a weight ratio of 5:8, and then perform suction filtration and drying to obtain the modified functional agent.

[0041] In this example, the mass fraction of the sodium lignosulfonate solution is 8%.

[0042] In this example, the diameter of the basalt fiber is 15 μm and the length is 1 mm.

[0043] The preparation method of a heat-resistant household ceramic product in this example includes the following steps: Weigh the raw materials of the heat-resistant household ceramic product by weight, mix and wet ball-mill the raw materials thoroughly, then mold in a mold for 1 h, with a molding pressure of 100 MPa. After molding, sinter at 1250 °C for 1 h. After sintering, obtain the household ceramic product.

[0044] Example 3: A heat-resistant household ceramic product, including the following raw materials by weight: 37.5 parts of potassium feldspar, 17.5 parts of sodium feldspar, 10 parts of china clay, 7 parts of boron-doped silicon nitride additive, 5.5 parts of calcined talc, 5 parts of modified functional agent, and 5.5 parts of nano zinc oxide.

[0045] The preparation method of the boron-doped silicon nitride additive of this embodiment is as follows: S01: Add 3.5 parts of boron oxide and 2 parts of barium titanate to 6.5 parts of lanthanum chloride solution by weight, stir evenly, and obtain a boron-doped blended solution; S02: 4 parts of cordierite powder, 3 parts of bentonite and 2.5 parts of zirconium oxide are mixed and sintered according to weight, and the sintering is completed to obtain a composite; The composite and the boron-doped blending solution are fully mixed in a weight ratio of 4.5:7 to obtain a boron-containing synergistic solution; S03: The silicon nitride additive and the boron-containing enhancing liquid are mixed and ball-milled in a weight ratio of 6:3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a silicon nitride additive doped with boron.

[0046] The mass fraction of the lanthanum chloride solution in this embodiment is 3.5%; the sintering temperature of the blended sintering treatment is 360° C., and the sintering is performed for 1 hour.

[0047] The preparation method of the silicon nitride additive of this embodiment is: S03a: preheating silicon nitride at 57.5°C for 17.5 minutes, and then irradiating it in a proton irradiation box for 1 hour at an irradiation power of 360W to obtain pretreated silicon nitride; S03b: 4 parts of mullite, 1.5 parts of yttrium oxide, and 4 parts of sodium dodecylbenzene sulfonate solution are mixed evenly by weight, and then 2.5 parts of aluminum borate whiskers and 1.5 parts of illite are added and mixed thoroughly to obtain a treatment liquid; the pretreated silicon nitride and the treatment liquid are ultrasonically treated at a weight ratio of 3:5. After the treatment is completed, the silicon nitride additive is obtained by filtering and drying.

[0048] The ultrasonic power of the ultrasonic treatment in this embodiment is 375W, and the ultrasonic treatment is performed for 1 hour; the mass fraction of the sodium dodecylbenzene sulfonate solution is 6.5%.

[0049] The preparation method of the modified functional agent of this embodiment is: S11: adding 4 parts of basalt fiber, 1.5 parts of nano-silica sol and 2.5 parts of magnesium oxide to 6.5 parts of sodium lignin sulfonate solution by weight, stirring evenly to obtain a functional liquid; S12: cerium oxide and titanium oxide are mixed and sintered in a weight ratio of 3:2 at a sintering temperature of 215° C. for 1 hour to obtain a sintered body; the sintered body and the functional liquid are mixed and evenly mixed in a weight ratio of 5:8, and then filtered and dried to obtain a modified functional agent.

[0050] The mass fraction of the sodium lignosulfonate solution in this example is 6.5%.

[0051] The diameter of the basalt fiber in this example is 12.5 μm, and the length is 0.75 mm.

[0052] A preparation method of a high-temperature resistant daily-use ceramic product in this example includes the following steps: Weigh the raw materials of the high-temperature resistant daily-use ceramic product according to parts by weight, mix the raw materials evenly and wet ball mill them sufficiently, then mold them in a mold for 1 h at a molding pressure of 100 MPa, and sinter them at 1250 °C for 1 h after molding. After sintering, the daily-use ceramic product is obtained.

[0053] Comparative Example 1: The difference from Example 3 is that the silicon nitride additive doped with boron is not added.

[0054] Comparative Example 2: The difference from Example 3 is that the boron-containing synergistic liquid is not added in the preparation of the silicon nitride additive doped with boron.

[0055] Comparative Example 3: The difference from Example 3 is that the complex is not added in the preparation of the boron-containing synergistic liquid.

[0056] Comparative Example 4: The difference from Example 3 is that bentonite and zirconia are not added to the complex.

[0057] Comparative Example 5: The difference from Example 3 is that the boron-doped blending liquid is not added in the preparation of the boron-containing synergistic liquid.

[0058] Comparative Example 6: The difference from Example 3 is that boron oxide and barium titanate are not added in the preparation of the boron-doped blending liquid.

[0059] Comparative Example 7: The difference from Example 3 is that the silicon nitride additive is not added in the preparation of the silicon nitride additive doped with boron.

[0060] Comparative Example 8: The difference from Example 3 is that the modified functional agent is not added.

[0061] Comparative Example 9: The difference from Example 3 is that the sintered body is not added in the preparation of the modified functional agent.

[0062] Comparative Example 10: The difference from Example 3 is that the functional liquid is not added in the preparation of the modified functional agent.

[0063] Comparative Example 11: Different from Example 3, basalt fibers and magnesium oxide were not added to the functional liquid.

[0064] The products of Examples 1 to 3 and Comparative Examples 1 to 11 were tested for high-temperature deformation resistance (tested according to the standard of GB / T5988-2002, heated at 1450 °C for 24 h), antibacterial property and anti-slip property under normal conditions and washing conditions. Under the washing conditions, the products were washed 100 times with a 5% mass fraction sodium hypochlorite solution. The test results are shown in Table 1.

[0065] Table 1 Test results of the product performance of Examples 1 to 3 and Comparative Examples 1 to 11: It can be seen from Comparative Examples 1-11 and Examples 1-3 that the product of Example 3 has excellent antibacterial and anti-slip properties, and at the same time has excellent high-temperature deformation resistance. The three can be coordinately improved. In addition, the product has excellent washing stability effect; If one of the boron-doped silicon nitride additive and the modified functional agent is not added in the present invention, the performance of the product deteriorates significantly. By using the two in a coordinated manner, the performance effect of the product is the most significant; In the preparation of the boron-doped silicon nitride additive, the boron-containing synergistic liquid was not added. In the preparation of the boron-containing synergistic liquid, the composite body was not added. In the composite body, bentonite and zirconia were not added. In the preparation of the boron-containing synergistic liquid, the boron-doped blending liquid was not added. In the preparation of the boron-doped blending liquid, boron oxide and barium titanate were not added. In the preparation of the boron-doped silicon nitride additive, the silicon nitride additive was not added. The performance of the product shows a deteriorating trend to varying degrees. Especially when the silicon nitride additive is not added, the performance of the product deteriorates significantly; At the same time, the performance effect of the product is the most significant when using the composite body obtained by the specific method of the present invention to cooperate with the boron-doped blending liquid to form a boron-containing synergistic liquid, and blending the silicon nitride additive to form a boron-doped silicon nitride additive; In the preparation of the modified functional agent, the sintered body was not added. In the preparation of the modified functional agent, the functional liquid was not added. In the functional liquid, basalt fibers and magnesium oxide were not added. The performance of the product shows a deteriorating trend. The performance effect of the modified functional agent prepared by using the functional liquid obtained by the specific method of the present invention to cooperate with the sintered body is the most significant.

[0066] The present invention further explores the product performance through the preparation of the silicon nitride additive.

[0067] Experimental Example 1: Same as Example 3, except that the treatment liquid was not added in the preparation of the silicon nitride additive.

[0068] Experimental Example 2: Same as Example 3, except that the pretreated silicon nitride was not added in the preparation of the silicon nitride additive.

[0069] Experimental Example 3: Same as Example 3, except that mullite and yttrium oxide were not added to the treatment liquid.

[0070] Experimental Example 4: Same as Example 3, except that aluminum borate whiskers and illite were not added to the treatment liquid.

[0071] The products of Experimental Examples 1 to 4 were subjected to the same performance tests, and the test results are shown in Table 2.

[0072] Table 2 Performance test results of the products of Experimental Examples 1 to 4: It can be seen from Experimental Examples 1-4 that in the preparation of the silicon nitride additive, the untreated silicon nitride and the treatment liquid were not added, and the performance of the product deteriorated significantly. At the same time, when mullite and yttrium oxide were not added to the treatment liquid, and when aluminum borate whiskers and illite were not added to the treatment liquid, the performance of the product showed a deteriorating trend to varying degrees. The performance effect of the product made of the treatment liquid obtained by the specific method of the present invention in combination with the pretreated silicon nitride was the most significant, and the effect of using other methods instead was not as obvious as that of the present invention.

[0073] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

[0074] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-temperature resistant daily-use ceramic product, characterized in that, It includes the following raw materials in parts by weight: 35-40 parts of potassium feldspar, 15-20 parts of sodium feldspar, 8-12 parts of china clay, 6-9 parts of boron-doped silicon nitride additive, 4-7 parts of calcined talc, 4-6 parts of modified functional agent, 4-7 parts of nano zinc oxide; The preparation method of the boron-doped silicon nitride additive is as follows: S01: Add 2-5 parts of boron oxide and 1-3 parts of barium titanate to 5-8 parts of lanthanum chloride solution by weight, stir evenly, and obtain a boron-doped blended solution; S02: 3-5 parts of cordierite powder, 2-4 parts of bentonite and 2-3 parts of zirconium oxide are mixed and sintered according to weight, and the sintering is completed to obtain a composite; The composite and the boron-doped blending liquid are fully mixed in a weight ratio of (4-5):7 to obtain a boron-containing synergistic liquid; S03: The silicon nitride additive and the boron-containing enhancing liquid are mixed and ball-milled in a weight ratio of (5-7):3, with a ball-milling speed of 1500 r / min for 2 hours. After the ball-milling is completed, the mixture is filtered and dried to obtain a silicon nitride additive doped with boron.

2. A high-temperature resistant household ceramic product according to claim 1, characterized in that, The daily-use ceramic product comprises the following raw materials in parts by weight: 37.5 parts of potassium feldspar, 17.5 parts of sodium feldspar, 10 parts of china clay, 7 parts of boron-doped silicon nitride additive, 5.5 parts of calcined talc, 5 parts of modified functional agent, and 5.5 parts of nano zinc oxide.

3. A high-temperature resistant daily-use ceramic product according to claim 1, characterized in that, The mass fraction of the lanthanum chloride solution is 2-5%.

4. A high-temperature resistant daily-use ceramic product according to claim 1, characterized in that, The sintering temperature of the co-mixed sintering treatment is 350~370℃, and the sintering time is 1h.

5. A high-temperature resistant daily-use ceramic product according to claim 1, characterized in that, The preparation method of the silicon nitride additive is: S03a: preheat the silicon nitride at 55-60°C for 15-20 minutes, and then place it in a proton irradiation box for 1 hour at an irradiation power of 350-370W to obtain pretreated silicon nitride; S03b: 3-5 parts of mullite, 1-2 parts of yttrium oxide, and 3-5 parts of sodium dodecylbenzene sulfonate solution are mixed evenly by weight, and then 2-3 parts of aluminum borate whiskers and 1-2 parts of illite are added and mixed thoroughly to obtain a treatment liquid; the pretreated silicon nitride and the treatment liquid are ultrasonically treated at a weight ratio of 3:

5. After the treatment is completed, the silicon nitride additive is obtained by filtering and drying.

6. A high-temperature resistant daily-use ceramic product according to claim 5, characterized in that, The ultrasonic power of the ultrasonic treatment is 350-400W, and the ultrasonic treatment is performed for 1 hour; the mass fraction of the sodium dodecylbenzene sulfonate solution is 5-8%.

7. A high-temperature resistant daily-use ceramic product according to claim 1, characterized in that, The preparation method of the modified functional agent is: S11: adding 3-5 parts of basalt fiber, 1-2 parts of nano-silica sol and 2-3 parts of magnesium oxide to 5-8 parts of sodium lignin sulfonate solution by weight, stirring evenly to obtain a functional liquid; S12: cerium oxide and titanium oxide are mixed and sintered in a weight ratio of 3:2 at a sintering temperature of 210-220°C for 1 hour to obtain a sintered body; the sintered body and the functional liquid are mixed and uniformly mixed in a weight ratio of 5:8, and then filtered and dried to obtain a modified functional agent.

8. A high-temperature resistant daily-use ceramic product according to claim 7, characterized in that, The mass fraction of the sodium lignin sulfonate solution is 5-8%.

9. A high-temperature resistant daily-use ceramic product according to claim 7, characterized in that, The basalt fiber has a diameter of 10-15 μm and a length of 0.5-1 mm.

10. A preparation method of a high-temperature resistant daily-use ceramic product, which is used to prepare a high-temperature resistant daily-use ceramic product as described in any one of claims 1 to 9, and is characterized in that, The following steps are involved: Weigh the raw materials for high-temperature resistant daily-use ceramic products by weight parts, mix the raw materials evenly and grind them thoroughly by wet ball milling, then form them in a mold for 1 h under a forming pressure of 100 MPa. After the forming is completed, sinter them at 1250 °C for 1 h. After the sintering is completed, daily-use ceramic products are obtained.

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