High-strength stain-resistant ceramic and process for making same

Abstract

The application relates to high-strength anti-fouling ceramics and a preparation process thereof, and belongs to the technical field of ceramic preparation. The ceramics are prepared through raw material preparation, molding, first surface anti-fouling treatment, second surface anti-fouling treatment and quality testing. Carbon fiber balls are added in the reinforced ceramic layer, the strength of the ceramics is effectively improved, the anti-fouling glaze layer is prepared by adopting a double-layer anti-fouling treatment process, in the first treatment, polydopamine and bentonite are used as raw materials of the anti-fouling glaze layer, the anti-fouling modification is realized through good biocompatibility and adhesion, the anti-fouling material can be effectively attached to the ceramic surface to form an anti-fouling material, in the second treatment, the anti-fouling agent is added to further form an anti-fouling protective layer, the combination of the two can effectively guarantee the anti-fouling capacity of the ceramics. The application has high strength, strong anti-fouling capacity, high safety and high application value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ceramic preparation, in particular to high-strength anti-fouling ceramic and its preparation process. BACKGROUND

[0002] Anti-fouling ceramic refers to ceramic materials with excellent anti-fouling performance. Such ceramics usually have low water absorption, high wear resistance and good anti-fouling properties, which can effectively prevent the adhesion and penetration of pollutants such as stains and dirt, and maintain the cleanliness and beauty of the surface. Among them, the selection and formula of glaze are one of the key factors. Some anti-fouling ceramics use special glazes, such as high-wear-resistant glazes, anti-fouling high-glaze, etc. These glazes have excellent wear resistance and anti-fouling properties, which can significantly improve the anti-fouling performance of ceramics. Anti-fouling ceramic has been widely used in household, building, bathroom and other daily use fields.

[0003] However, the existing anti-fouling ceramic has insufficient strength, and the pressure-bearing capacity still has room for improvement. Its anti-fouling capacity usually only depends on the surface anti-fouling layer. After long-term use of the anti-fouling layer or damage caused by scratching, the anti-fouling capacity will be lost. In view of this, the present application is proposed. SUMMARY

[0004] In order to overcome the technical defects existing in the prior art, the present application provides high-strength anti-fouling ceramic and its preparation process.

[0005] The technical solution adopted by the present application is: the preparation process of high-strength anti-fouling ceramic, comprising the following steps:

[0006] S1: raw material preparation: prepare reinforced ceramic layer raw material and anti-fouling glaze water raw material, process each raw material into powder, and prepare anti-fouling glaze water after the anti-fouling glaze water raw material is processed into powder, add water to obtain anti-fouling glaze water, use the reinforced ceramic layer as the base and the anti-fouling glaze layer as the surface anti-fouling structure;

[0007] S2: forming: the prepared reinforced ceramic layer powder is made into ceramic mud, and then the obtained ceramic mud is added to a mold for pressing and forming. After drying, the raw material is prepared into a ceramic body;

[0008] S3: first surface anti-fouling treatment: evenly apply the anti-fouling glaze water on the surface of the ceramic body to form an anti-fouling glaze layer, and then put it into a kiln for sintering. Sintering is carried out at a temperature of 1100-1250℃ for 1.8-2.3h, and then cooled to room temperature to obtain a ceramic product. The anti-fouling glaze water realizes anti-fouling modification through good biocompatibility and adhesion, and can effectively adhere to the surface of the ceramic to form an anti-fouling material;

[0009] S4: secondary surface anti-fouling treatment: an anti-fouling agent is applied to the surface of the ceramic product, the anti-fouling agent penetrates into the pores and micro-cracks on the surface of the product by capillary action, and forms a durable anti-fouling protective layer on the surface of the ceramic through physical and chemical combination with the ceramic under the action of water and oxygen in the air, thereby obtaining a finished ceramic product. In addition to the anti-fouling glaze layer, the ceramic layer also has an anti-fouling protective layer on the surface, so that even if the anti-fouling protective layer on the surface is slightly damaged during actual use, the anti-fouling effect can still be achieved through the underlying anti-fouling glaze layer, achieving sufficient and more durable anti-fouling effect.

[0010] S5: quality testing: the finished ceramic product is subjected to quality testing, including pressure testing, bending testing and anti-fouling testing. The product is qualified and then shipped.

[0011] Preferably, in step S1, the reinforced ceramic layer raw material specifically includes calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls, and the preparation method of the ceramic layer powder is as follows:

[0012] The other raw materials except the carbon fiber balls are first crushed in a super micro crusher, then secondarily ground in a ball mill for 5-8h, and finally sieved through a 150-250 mesh sieve. Finally, the sieved powder is mixed with the carbon fiber balls.

[0013] Preferably, the calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls of the reinforced ceramic layer raw material are specifically in a weight ratio of 7-11:25-32:3-4:6-8:20-22:2-5.

[0014] Preferably, in step S1, the preparation method of the anti-fouling glaze water is as follows: taking silica, silicon carbide, borax, bentonite, polydopamine, talc powder and adhesive as raw materials, mixing all the raw materials, mixing with pure water in a mass ratio of 2:0.6-0.80, and then ball milling for 10-12h to obtain the anti-fouling glaze water.

[0015] Preferably, the silica, silicon carbide, borax, bentonite, polydopamine, talc powder and adhesive of the anti-fouling glaze water raw material are specifically in a weight ratio of 20-24:8-8.5:40-50:8-13:0.5-0.8:0.6-0.8:8-9.

[0016] Preferably, in step S2, the drying conditions of the formed ceramic body are specifically as follows: drying at a temperature of 160-180℃ for 1-2h.

[0017] High-strength anti-fouling ceramic, prepared by the preparation process of high-strength anti-fouling ceramic.

[0018] The anti-fouling ceramic has the advantages that the anti-fouling ceramic has a ceramic layer as a base and an anti-fouling glaze layer as a surface anti-fouling structure, the anti-fouling structure is made by a double-layer anti-fouling treatment process, polydopamine and bentonite are used as raw materials of the anti-fouling glaze layer in one-time treatment, the anti-fouling modification is realized by good biocompatibility and adhesion, the anti-fouling material can be effectively attached to the ceramic surface to form an anti-fouling material, the anti-fouling agent is added in secondary treatment to further form an anti-fouling protective layer, the combination of the two can effectively ensure the anti-fouling ability of the ceramic, even if the surface anti-fouling protective layer is slightly damaged, the anti-fouling glaze layer below can still be used for anti-fouling, and the anti-fouling effect is sufficient and more durable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The figure is a hierarchical structure diagram of the ceramic product in the application.

[0020] Figure 2 The figure is a basic flowchart of the preparation process in the application.

[0021] The figure is a basic flowchart of the preparation process in the application. DETAILED DESCRIPTION

[0022] The application will be further described below with reference to the accompanying drawings:

[0023] As shown in the figure, the embodiment provides a high-strength anti-fouling ceramic and a preparation process thereof, which comprises the following steps: Figures 1-2 S1: raw material preparation: including ceramic layer raw material preparation, the raw material of the reinforced ceramic layer specifically includes calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls, and the preparation method of the ceramic layer powder is as follows:

[0024] The other raw materials except the carbon fiber balls are first crushed in a supermicro pulverizer, and then secondarily ground in a ball mill for 5-8 h, and finally sieved through a 150-250 mesh sieve, and finally the sieved powder is mixed with the carbon fiber balls.

[0025] The calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls of the raw material of the reinforced ceramic layer are specifically 7-11 parts, 25-32 parts, 3-4 parts, 6-8 parts, 20-22 parts and 2-5 parts by weight ratio.

[0026]

[0027] ​The anti-fouling glaze water raw material preparation also includes, and the preparation method of the anti-fouling glaze water is specifically as follows: taking silica, silicon carbide, borax, bentonite, polydopamine, talcum powder and a binder as raw materials, mixing all the raw materials, mixing with pure water according to a mass ratio of 2:0.6-0.80, ball milling and grinding for 10-12 hours, and then obtaining the anti-fouling glaze water; the silica, silicon carbide, borax, bentonite, polydopamine, talcum powder and the binder are specifically in a weight ratio of 20-24:8-8.5:40-50:8-13:0.5-0.8:0.6-0.8:8-9.

[0028] The silica, silicon carbide, borax, talcum powder and the binder are used as conventional glaze layer materials, and the bentonite and the polydopamine are added on this basis; the polydopamine and the bentonite are used as raw materials of the anti-fouling glaze layer 20, the anti-fouling modification is realized through good biocompatibility and adhesion, and the anti-fouling glaze layer 20 can be effectively attached to the ceramic surface to form an anti-fouling material;

[0029] The ceramic layer raw material and the anti-fouling glaze water raw material are respectively used for making the ceramic layer and the anti-fouling glaze layer; the ceramic layer is used as a substrate, and the anti-fouling glaze layer is used as a surface anti-fouling structure; the ceramic layer is internally provided with a reinforcing layer, and the anti-fouling glaze layer effectively guarantees the ceramic anti-fouling capability, so that a sufficient and more durable anti-fouling effect is realized.

[0030] S2: forming: the prepared reinforcing type ceramic layer powder is made into ceramic mud, then the obtained ceramic mud is added to a mold for compression molding, and the formed raw material is dried; the drying condition is specifically that the raw material is dried at a temperature of 160-180 DEG C for 1-2 hours, and then a ceramic body is prepared;

[0031] S3: first surface anti-fouling treatment: the anti-fouling glaze water is uniformly applied to the surface of the ceramic body to form an anti-fouling glaze layer, and then the anti-fouling glaze layer is sintered in a kiln at a temperature of 1100-1250 DEG C for 1.8-2.3 hours, and then cooled to room temperature to obtain a ceramic product; the anti-fouling glaze water realizes anti-fouling modification through good biocompatibility and adhesion, and can be effectively attached to the ceramic surface to form an anti-fouling material;

[0032] S4: second surface anti-fouling treatment: the anti-fouling agent is applied to the surface of the ceramic product, the anti-fouling agent penetrates into the product surface pores and micro-cracks through capillary action, and forms a durable anti-fouling protective layer through physical and chemical combination with the ceramic under the action of water and oxygen in the air, so that the finished product ceramic product is obtained; in addition to the anti-fouling glaze layer on the surface of the ceramic layer, the ceramic layer also has an anti-fouling protective layer; even if the anti-fouling protective layer on the surface is slightly damaged during actual use, the anti-fouling glaze layer below can still realize anti-fouling, so that a sufficient and more durable anti-fouling effect is realized;

[0033] S5: Quality testing: the finished ceramic product is subjected to quality testing, and the test items specifically include pressure test, bending test and stain resistance test, and is shipped after passing the test.

[0034] The high-strength stain-resistant ceramic is prepared by the preparation process of the high-strength stain-resistant ceramic, and carbon fiber balls are added in the reinforced ceramic layer to effectively improve the ceramic strength. The stain-resistant structure is made by a double-layer stain-resistant treatment process. In the first treatment, polydopamine and bentonite are used as the raw materials of the stain-resistant glaze layer to realize stain resistance modification through good biocompatibility and adhesion, which can effectively adhere to the ceramic surface to form a stain-resistant material. In the second treatment, the stain-resistant protective layer is further formed by adding the stain-resistant agent. The combination of the two effectively ensures the stain resistance of the ceramic. Even if the stain-resistant protective layer on the surface is slightly damaged, it can still resist stains through the stain-resistant glaze layer below, achieving sufficient and more durable stain resistance effect. Comparative Example

[0035] The comparative example provides a high-strength stain-resistant ceramic and its preparation process, which includes the following steps:

[0036] S1: Raw material preparation: including ceramic layer raw material preparation, using calcined kaolin, diatomite, feldspar, basalt, and montmorillonite as raw materials, according to the weight ratio of 7-11:25-32:3-4:6-8:20-22, the ceramic layer raw material is first crushed by a super micro pulverizer, then secondly ground by a ball mill for 5-8h, and finally sieved through a 150-250 mesh sieve to obtain ceramic layer powder;

[0037] It also includes stain-resistant glaze water raw material preparation, using silicon dioxide, silicon carbide, borax, talc powder, and adhesive as raw materials, according to the weight ratio of 20-24:8-8.5:40-50:0.6-0.8:8-9, all the raw materials are mixed, then mixed with pure water according to the mass ratio of 2:0.6-0.80, and then ground by a ball mill for 10-12h to obtain stain-resistant glaze water;

[0038] S2: Forming: the prepared ceramic layer powder is added to a mold, then pressed and formed, and the formed ceramic body is dried at a temperature of 160-180℃ for 1-2h to obtain ceramic layer 10;

[0039] S3: Surface stain-resistant treatment: the stain-resistant glaze water is evenly applied to the surface of the ceramic body to form a stain-resistant glaze layer, then sintered in a kiln at a temperature of 1100-1250℃ for 1.8-2.3h, and then cooled to room temperature to obtain a ceramic product.

[0040] S4: Quality testing: the finished ceramic product is subjected to quality testing, and the test items specifically include pressure test, bending test and stain resistance test, and is shipped after passing the test.

[0041] The ceramic products prepared in the above examples were tested, and the data are shown in the following table.

[0042] Example 1

[0043] The present example provides a high-strength anti-fouling ceramic and a preparation process thereof, comprising the following steps:

[0044] S1: raw material preparation: including ceramic layer raw material preparation, the reinforcing ceramic layer raw material specifically includes calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber ball, and the preparation method of the ceramic layer powder:

[0045] The other raw materials except the carbon fiber ball are first crushed in a super micro crusher, and then secondarily ground in a ball mill for 5-8 h, and finally sieved through a 150-250 mesh sieve, and finally the sieved powder is mixed with the carbon fiber ball;

[0046] The calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber ball of the reinforcing ceramic layer raw material are specifically in a weight ratio of 7:25:3:6:20:2.

[0047] It also includes anti-fouling glaze water raw material preparation, and silica, silicon carbide, borax, talc powder and adhesive are used as raw materials in a weight ratio of 20:8:40:0.6:8. After mixing all the raw materials, they are mixed with pure water in a mass ratio of 2:0.6-0.80, and then ground in a ball mill for 10-12 h to obtain the anti-fouling glaze water.

[0048] S2: forming: the prepared ceramic layer powder is added to the mold, and then pressed into shape. The formed ceramic body is dried at a temperature of 160-180°C for 1-2 h to obtain a ceramic layer 10.

[0049] S3: surface anti-fouling treatment: the anti-fouling glaze water is evenly applied to the surface of the ceramic body to form an anti-fouling glaze layer, and then sintered in a kiln at a temperature of 1100-1250°C for 1.8-2.3 h, and then cooled to room temperature to obtain a ceramic product.

[0050] S4: quality test: the finished ceramic product is tested for quality, and the test items specifically include pressure test, bending test and anti-fouling test. After passing the test, it is shipped.

[0051] The ceramic products prepared in the above examples were tested, and the data are shown in the following table. According to the data, the strength of the ceramic product is effectively improved by the addition of the carbon fiber ball.

[0052] Embodiment 2

[0053] The embodiment provides a high-strength anti-fouling ceramic and a preparation process thereof, and comprises the following steps:

[0054] S1: raw material preparation: including ceramic layer raw material preparation, taking calcined kaolin, diatomite, feldspar, basalt and montmorillonite as raw materials, and specifically, the weight ratio is 7:25:3:6:20, the ceramic layer raw material is firstly crushed in a super micro pulverizer, then is secondarily ground in a ball mill for 5-8 hours, and finally, ceramic layer powder is prepared through a 150-250 mesh screen;

[0055] The anti-fouling type glaze water raw material preparation also includes taking silicon dioxide, silicon carbide, borax, bentonite, polydopamine, talcum powder and a binder as raw materials, mixing all the raw materials, mixing with pure water at a mass ratio of 2:0.6-0.80, and then grinding for 10-12 hours through a ball mill to prepare the anti-fouling type glaze water, and the silicon dioxide, silicon carbide, borax, bentonite, polydopamine, talcum powder and the binder in the anti-fouling type glaze water raw material specifically have a weight ratio of 20:8:40:8:0.5:0.6:8;

[0056] S2: forming: the prepared reinforced ceramic layer powder is made into ceramic mud, then the obtained ceramic mud is added to a mold for compression molding, and the raw material after molding is dried, and the drying condition is specifically that the temperature is 160-180 DEG C and the drying time is 1-2 hours, so as to prepare a ceramic body;

[0057] S3: first surface anti-fouling treatment: the anti-fouling type glaze water is uniformly applied to the surface of the ceramic body to form an anti-fouling glaze layer, then the ceramic body is put into a kiln for sintering at a temperature of 1100-1250 DEG C for 1.8-2.3 hours, and then cooled to room temperature to prepare a ceramic product;

[0058] S4: second surface anti-fouling treatment: the anti-fouling agent is applied to the surface of the ceramic product, the anti-fouling agent penetrates into the product surface pores and microcracks by capillary action, and forms a durable anti-fouling protective layer under the action of water and oxygen in the air and the physical and chemical combination with the ceramic, so as to prepare a finished ceramic product;

[0059] S5: quality test: the finished ceramic product is subjected to quality test, and the test items specifically include pressure test, bending test and anti-fouling test, and the product is delivered after passing the test.

[0060] The data of the ceramic product prepared in the above embodiment after test and the data of the comparative example are shown in the following table, and the data shows that the anti-fouling ability of the ceramic product is effectively improved by the twice surface anti-fouling treatment.

[0061] Embodiment 3

[0062] The embodiment provides a high-strength anti-fouling ceramic and a preparation process thereof, and comprises the following steps:

[0063] S1: raw material preparation: including ceramic layer raw material preparation, the reinforcing type ceramic layer raw material specifically includes calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber ball, and the preparation method of the ceramic layer powder is as follows:

[0064] The other raw materials except the carbon fiber ball are first crushed in a super micro pulverizer, then secondarily ground in a ball mill for 5-8 h, finally screened through a 150-250 mesh screen, and finally mixed with the carbon fiber ball.

[0065] The calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber ball of the reinforcing type ceramic layer raw material are specifically in a weight ratio of 7:25:3:6:20:2.

[0066] The anti-fouling type glaze water raw material preparation also includes the following steps: taking silica, silicon carbide, borax, bentonite, polydopamine, talcum powder and a binder as raw materials, mixing all the raw materials, mixing with pure water in a mass ratio of 2:0.6-0.80, ball milling for 10-12 h to obtain the anti-fouling type glaze water, and the silica, silicon carbide, borax, bentonite, polydopamine, talcum powder and binder of the anti-fouling type glaze water raw material are specifically in a weight ratio of 20:8:40:8:0.5:0.6:8.

[0067] S2: forming: the prepared reinforcing type ceramic layer powder is made into ceramic mud, then the obtained ceramic mud is added to a mold for compression molding, and the raw material after molding is dried, the drying condition is specifically that the temperature is 160-180 DEG C and the drying time is 1-2 h, and a ceramic body is prepared;

[0068] S3: first surface anti-fouling treatment: the anti-fouling type glaze water is uniformly applied to the surface of the ceramic body to form an anti-fouling glaze layer, then the ceramic body is put into a kiln for sintering, the sintering temperature is 1100-1250 DEG C, the sintering time is 1.8-2.3 h, and then the ceramic product is cooled to room temperature;

[0069] S4: second surface anti-fouling treatment: the anti-fouling agent is applied to the surface of the ceramic product, the anti-fouling agent penetrates into the product surface pores and microcracks by capillary action, and forms a durable anti-fouling protective layer under the action of water and oxygen in the air and the physical and chemical combination with the ceramic, and finally a finished ceramic product is obtained.

[0070] S5: Quality test: the quality of the finished ceramic product is tested, and the test items include pressure test, bending test and stain resistance test. After passing the test, the product is ready for delivery.

[0071] The data of the ceramic product prepared in the above example after testing are compared with the data of the comparative example as shown in the following table. According to the data, the strength of the ceramic product is greatly improved by adding carbon fiber balls, and the stain resistance of the ceramic product is greatly improved by twice surface stain resistance treatment.

[0072] Example 4

[0073] The present embodiment provides a high-strength stain-resistant ceramic and a preparation process thereof, comprising the following steps:

[0074] S1: Raw material preparation: including ceramic layer raw material preparation, and the reinforcing ceramic layer raw material specifically includes calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls. The preparation method of the ceramic layer powder is:

[0075] The other raw materials except the carbon fiber balls are first crushed in a super micro crusher, and then secondarily ground in a ball mill for 5-8h. Finally, the ground powder is sieved through a 150-250 mesh sieve, and then mixed with the carbon fiber balls.

[0076] The calcined kaolin, diatomite, feldspar, basalt, montmorillonite and carbon fiber balls of the reinforcing ceramic layer raw material are specifically in a weight ratio of 11:32:4:8:22:5;

[0077] It also includes the preparation of stain-resistant glaze water. The preparation method of the stain-resistant glaze water is specifically as follows: taking silica, silicon carbide, borax, bentonite, polydopamine, talc powder and adhesive as raw materials, mixing all the raw materials, mixing with pure water in a mass ratio of 2:0.6-0.80, and then grinding for 10-12h by ball milling to obtain the stain-resistant glaze water. The silica, silicon carbide, borax, bentonite, polydopamine, talc powder and adhesive of the stain-resistant glaze water raw material are specifically in a weight ratio of 24:8.5:50:13:0.8:0.8:9.

[0078] S2: Forming: the prepared reinforcing ceramic layer powder is made into ceramic mud, and then the obtained ceramic mud is added to a mold for pressing and forming. The formed raw material is dried, and the drying conditions are specifically at a temperature of 160-180℃ for 1-2h to obtain a ceramic body;

[0079] S3: once surface anti-fouling treatment: evenly apply the anti-fouling glaze water on the surface of the ceramic body to form an anti-fouling glaze layer, then enter the kiln for sintering, sinter at a temperature of 1100-1250°C for 1.8-2.3h, and then cool to room temperature to obtain a ceramic product;

[0080] S4: twice surface anti-fouling treatment: apply the anti-fouling agent on the surface of the ceramic product, the anti-fouling agent penetrates into the product surface pores and micro-cracks by capillary action, and forms a durable anti-fouling protective layer through physical and chemical combination with the ceramic under the action of air moisture and oxygen, to obtain a finished ceramic product;

[0081] S5: quality testing: the finished ceramic product is subjected to quality testing, and the test items specifically include compression testing, bending testing and anti-fouling testing, and is shipped after passing the test.

[0082] The data of the ceramic product obtained in the above embodiment after testing and the data of the comparative example are compared as shown in the following table. The difference between the present embodiment and example 3 is that the proportioning of the reinforcing ceramic layer and the anti-fouling glaze water raw materials is slightly different, but the data shows that the addition of carbon fiber balls in the reinforcing ceramic layer still greatly improves the strength of the ceramic product, and the twice surface anti-fouling treatment greatly improves the anti-fouling ability of the ceramic product. Therefore, the slight fluctuation of the raw material proportioning has little effect on the strength and anti-fouling ability of the ceramic product, and the high strength and efficient anti-fouling effect can still be maintained.

[0083]

[0084] In the present application, the ceramic compression test specifically adopts the standard specified in GB / T 8488, which is carried out on a dry sample. A universal testing machine is used during the test, the test speed is 0.5mm / min, and the test result is the average value of three tests.

[0085] The specific steps of anti-fouling grade testing are as follows:

[0086] 1. Clean the sample with tap water, dry it, and then apply a methylene blue aqueous solution to the glaze surface that may come into contact with food using a hair brush pen. After drying slightly, remove the dyeing solution, and use the naked eye (ordinary glasses can be worn) to observe whether the sample has cracks, breakage or other defects under the condition of light intensity of about 300LX at a distance of 25-35cm from the sample. All samples should be free of cracks, breakage and other defects.

[0087] 2. Prepare a simulated food penetration solution

[0088] (1) Prepare a methylene blue aqueous solution with a volume concentration of 5g / L using tap water at about 80 degrees.

[0089] (2) Add the solution of 6.2.1 to the acetic acid solution with a concentration of 4% according to a volume ratio of 1:4.

[0090] (3) The solution of 6.2.1 is added to the 20% ethanol solution at a volume ratio of 1:4.

[0091] (4) The solution of 6.2.1 is added to the olive oil at a volume ratio of 1:4.

[0092] The solutions of (1), (2), (3), and (4) above are respectively injected into the white base color dishware, bowl, and other daily-use porcelain without cracks, breakage, and other defects for 24 hours of soaking.

[0093] 3. In the process of removing the staining agent, the staining solution in the porcelain soaked with various staining solutions is poured into a beaker or other sealable glass bottle (which can be reused), the stained porcelain glaze is cleaned with flowing warm water with a temperature of 55℃±5℃ for 1 minute, the stained porcelain glaze is cleaned with a hand-washing detergent (executive standard GB9985) applied on the cotton cloth for 1 minute, if the cleaning is not complete, the stained porcelain glaze is soaked in 20℃±5℃ tap water for 24 hours, then cleaned with flowing warm water with a temperature of 55℃±5℃, after cleaning, the sample is wiped clean with a dry cotton cloth and placed in a drying oven at 110±5℃ for 1 hour.

[0094] 4. The dried sample is observed for changes in the glaze with the naked eye (ordinary glasses can be worn) at a distance of 25cm-35cm from the glaze under the illumination of daylight or artificial light source with an illumination of about 300lx, but direct sunlight is avoided, if no changes in the glaze are observed, the pollution is removed, and the sample is determined to be qualified; if the overall color of the glaze changes significantly, the sample is determined to be unqualified; if the diameter of the stain is ≥1mm or the number of stains is ≥3, the sample is determined to be unqualified.

[0095] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, and those skilled in the art should understand that the present invention is not limited to the above examples, the above examples and descriptions in the specification are only to illustrate the principles of the present invention, and various changes and improvements can be made to the present invention without departing from the spirit and scope of the present invention, and these changes and improvements all fall within the scope of the present invention, the scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A preparation process for high-strength, stain-resistant ceramics, characterized in that, Includes the following steps: S1: Raw material preparation: Prepare the reinforcing ceramic layer raw material and the anti-fouling glaze raw material. Process each raw material into powder. After the anti-fouling glaze raw material is made into powder, add water to obtain the anti-fouling glaze. The raw materials for the reinforced ceramic layer specifically include calcined kaolin, diatomaceous earth, feldspar, basalt, montmorillonite, and carbon fiber spheres. The method for preparing the ceramic layer powder is as follows: The raw materials, except for the carbon fiber balls, are first pulverized in an ultra-fine pulverizer, then ground again in a ball mill for 5-8 hours, and finally passed through a 150-250 mesh sieve. The sieved powder is then mixed with the carbon fiber balls. The calcined kaolin, diatomite, feldspar, basalt, montmorillonite, and carbon fiber balls in the reinforced ceramic layer raw materials are specifically in the following weight ratios: 7-11 parts: 25-32 parts: 3-4 parts: 6-8 parts: 20-22 parts: 2-5 parts; The specific preparation method of the anti-fouling glaze is as follows: using silicon dioxide, silicon carbide, borax, bentonite, polydopamine, talc powder and binder as raw materials, in the following weight ratio: 20-24 parts: 8-8.5 parts: 40-50 parts: 8-13 parts: 0.5-0.8 parts: 0.6-0.8 parts: 8-9 parts, after mixing all raw materials, they are mixed with pure water in a mass ratio of 2:0.6-0.80, and then ball-milled for 10-12 hours to obtain the anti-fouling glaze. S2: Molding: The prepared reinforced ceramic layer (10) powder is made into ceramic clay, and then the obtained ceramic clay is added into the mold and pressed into shape. After the raw material is dried, a ceramic blank is obtained. S3: First-time surface anti-fouling treatment: Apply anti-fouling glaze evenly to the surface of the ceramic body to form an anti-fouling glaze layer (20), then sinter in a kiln at a temperature of 1100-1250℃ for 1.8-2.3h, and then cool to room temperature to obtain ceramic products; S4: Secondary surface anti-fouling treatment: Apply an anti-fouling agent to the surface of ceramic products. The anti-fouling agent penetrates into the pores and micro-cracks on the product surface through capillary action. Under the action of moisture and oxygen in the air, it undergoes physical and chemical bonding with the ceramic to form a durable anti-fouling protective layer, thus producing finished ceramic products. S5: Quality Testing: Conduct quality testing on finished ceramic products. The specific test items include pressure test, flexural strength test and stain resistance test. Only products that pass the test are released from the factory.

2. The preparation process of the high-strength anti-fouling ceramic according to claim 1, characterized in that: In step S2, the drying conditions for the shaped ceramic blank are as follows: drying at a temperature of 160-180℃ for 1-2 hours.

3. High-strength anti-fouling ceramic, prepared by the preparation process of high-strength anti-fouling ceramic as described in any one of claims 1-2.

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