阅读说明：本技术 一种融有陨石的定窑瓷器的制作工艺 (Manufacturing process of fixed kiln porcelain fused with meteorite ) 是由 张鸿烨 徐澎 于 2021-08-30 设计创作，主要内容包括：本发明涉及瓷器制作技术领域,尤其涉及一种融有陨石的定窑瓷器的制作工艺,包括以下步骤：S1、按量称取原料；S2、制泥：将胚料中的瓷石和高岭土经水碓舂细,淘洗,除去杂质,沉淀后制成砖状的泥块,然后再用水调和泥块,去掉渣质,并把泥团中的空气挤压出来,并使泥中的水分均匀,得瓷泥；S3、制坯：将瓷泥摔掷在辘轱车上的转盘中心,随手法的屈伸收放拉制出坯体的外形,得初坯,再将初坯放在辘轳车的利桶上,转动车盘,用刀旋削后得坯体；S4、一次烧窑：将坯体后放入710-760℃的窑炉中烧制3.5-4小时,停火冷却至室温,将烧成的素坯取出,备用。本发明不仅能够进一步地提高定窑瓷器的阻水性能,而且还能有效地改善其对于大肠杆菌的抗菌效果。(The invention relates to the technical field of porcelain manufacturing, in particular to a manufacturing process of a fixed kiln porcelain fused with meteorites, which comprises the following steps: s1, weighing the raw materials according to the weight; s2, preparing mud: grinding the porcelain stone and kaolin in the blank with water, washing, removing impurities, precipitating, making into brick-shaped mud blocks, blending the mud blocks with water, removing residues, extruding air out of the mud blocks, and making the water content in the mud uniform to obtain porcelain mud; s3, blank making: throwing the porcelain clay at the center of a rotary disc on a windlass vehicle, drawing the porcelain clay into the shape of a green body according to the bending and stretching of a manipulation to obtain a primary blank, then placing the primary blank on a barrel of the windlass vehicle, rotating the vehicle disc, and rotationally cutting the primary blank by a knife to obtain the green body; s4, primary kiln burning: and putting the green body into a kiln at 710-760 ℃ for firing for 3.5-4 hours, stopping firing, cooling to room temperature, and taking out the fired green body for later use. The invention not only can further improve the water resistance of the fixed kiln porcelain, but also can effectively improve the antibacterial effect of the fixed kiln porcelain on escherichia coli.)

1. The fixed kiln porcelain fused with meteorites is characterized by comprising the following raw materials in parts by mass:

blank material: 40-50 parts of porcelain stone, 60-70 parts of kaolin and 35-42 parts of potassium feldspar;

and (3) external glazing: 14-36 parts of feldspar, 16-34 parts of mullite, 18-32 parts of kaolin, 20-30 parts of silicon dioxide, 22-28 parts of aluminum oxide, 8-14 parts of albite and 24-32 parts of an inorganic antibacterial agent;

inner glaze: 7-18 parts of feldspar, 8-17 parts of mullite, 9-16 parts of kaolin, 56-78 parts of meteorite powder, 10-15 parts of silicon dioxide, 11-14 parts of aluminum oxide, 4-7 parts of albite and 12-16 parts of an inorganic antibacterial agent;

42-66 parts of sodium methylsilicate and 14-22 parts of 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution with the concentration of 3.4-3.7 mol/L.

2. The meteorite-fused fixed kiln porcelain according to claim 1, wherein the mass ratio of the same raw materials in the outer glaze to the inner glaze is 2: 1.

3. The merle-fused fixed kiln porcelain according to claim 1, wherein the mass ratio of the sodium methyl silicate to the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is 3: 1.

4. The meteorite-fused fixed kiln porcelain according to claim 1, wherein the inorganic antibacterial agent is formed by mixing nano montmorillonite and tetraethylammonium chloride aqueous solution according to a mass ratio of 3:2, wherein the concentration of the tetraethylammonium chloride aqueous solution is 7% -12%.

5. A manufacturing process of a fixed kiln porcelain fused with meteorites is characterized by comprising the following steps:

s1, weighing the raw materials according to the weight;

s2, preparing mud: grinding the porcelain stone and kaolin in the blank with water, washing, removing impurities, precipitating, making into brick-shaped mud blocks, blending the mud blocks with water, removing residues, extruding air out of the mud blocks, and making the water content in the mud uniform to obtain porcelain mud;

s3, blank making: throwing the porcelain clay at the center of a rotary disc on a windlass vehicle, drawing the porcelain clay into the shape of a green body according to the bending and stretching of a manipulation to obtain a primary blank, then placing the primary blank on a barrel of the windlass vehicle, rotating the vehicle disc, and rotationally cutting the primary blank by a knife to obtain the green body;

s4, primary kiln burning: placing the green body into a kiln at 710-760 ℃ for firing for 3.5-4 hours, stopping firing, cooling to room temperature, and taking out the fired green body for later use;

s5, applying outer glaze: uniformly mixing the outer glaze raw materials, putting the mixture into a ball mill for grinding, adding water accounting for 21-23% of the total amount of the outer glaze raw materials into the ground raw materials to prepare outer glaze slurry, immersing the outer surface of the biscuit in the outer glaze slurry in a glaze dipping mode, and taking out and finishing the biscuit for later use after the glaze dipping is finished;

s6, inner glazing: uniformly mixing the inner glaze raw materials, putting the mixture into a ball mill for grinding, adding water accounting for 13-17% of the total amount of the inner glaze raw materials into the ground raw materials to prepare inner glaze slurry, glazing the inner surface of the blank obtained in S5 in a glaze spraying mode, and finishing and perfecting the glaze spraying mode for later use;

s7, secondary kiln burning: putting the glazed blank in the S6 into the kiln again, ventilating in the kiln, firing the blank in an oxidizing atmosphere, controlling the firing temperature in the kiln, raising the temperature in the kiln to 1100 ℃ within 3.5-6 hours, then continuing to raise the temperature to 1200 ℃, reducing the ventilation volume of the kiln, firing the blank at the temperature of 1200 ℃ for 45-50 minutes, then continuing to raise the temperature, firing the blank at the high temperature of 1280-1400 ℃ for 0.3-0.4 hours, stopping firing, naturally cooling to room temperature, and taking out of the kiln to obtain the fixed kiln with meteorites;

s8, post-processing: pouring sodium methyl silicate into the 1-ethanol-based-3-methylimidazole bis (trifluoromethyl) sulfonic acid imine solution, mixing uniformly, dipping and uniformly smearing on the inner and outer surfaces of the fixed kiln porcelain by using a brush, smearing for 2-3 times back and forth, and airing at room temperature.

6. The process for making fixed kiln porcelain fused with meteorites as claimed in claim 5, wherein the grinding time in S5 and S6 is 15-17 hours.

7. The process for making fixed kiln porcelain fused with meteorites as claimed in claim 5, wherein the thickness of the outer glaze applied in S5 is 0.52-0.57mm, and the thickness of the inner glaze applied in S6 is 0.43-0.48 mm.

8. The process for manufacturing the fixed kiln porcelain fused with merle as claimed in claim 5, wherein in the step S7, the process of heating to 1100 ℃ is specifically as follows: heating to 400 ℃, uniformly heating to 1000 ℃, and then continuously heating to 1100 ℃, wherein the temperature is increased at the speed of 5-7 ℃ per minute in the uniform heating process.

9. The process of claim 5, wherein in the step S7, the temperature is raised at a rate of 1-3 ℃ per minute in the process of raising the temperature from 1200 ℃ to the final temperature range.

Technical Field

The invention relates to the technical field of porcelain manufacturing, in particular to a manufacturing process of a fixed kiln porcelain fused with meteorites.

Background

The manufacturing of the porcelain comprises the following processes of pugging, blank making, glazing, and setting the porcelain into three different types of underglaze color, glazed color and in-glaze color according to the glazing time, and finally, firing the porcelain in a kiln, wherein the porcelain is placed in a sagger and is fired in the kiln for a day and a night at the temperature of about 1300 ℃.

The meteorite is composed of iron, nickel, silicate and other minerals, a large number of ammonia, nucleic acid, fatty acid, pigment, 11 amino acids and other organic matters are found in the meteorite with high carbon content, the meteorite has strong permeability and micro-electrolysis effect, and has excellent light, electricity, magnetism, force, heat absorption and catalytic sensitivity, and the energy of the meteorite is thousands times higher than that of common rare earth materials.

How to combine the meteorites and the fixed kiln together, the fixed kiln bowl is difficult to manufacture by adopting a related technology process, and the manufactured porcelain is in exposed air for a long time and is easy to breed bacteria (such as escherichia coli, aspergillus flavus, staphylococcus aureus and the like) on the surface, so that the manufacturing process of the fixed kiln porcelain fused with the meteorites is provided for solving the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a manufacturing process of a fixed kiln porcelain fused with meteorites.

A fixed kiln porcelain fused with meteorites comprises the following raw materials in parts by mass:

blank material: 40-50 parts of porcelain stone, 60-70 parts of kaolin and 35-42 parts of potassium feldspar;

and (3) external glazing: 14-36 parts of feldspar, 16-34 parts of mullite, 18-32 parts of kaolin, 20-30 parts of silicon dioxide, 22-28 parts of aluminum oxide, 8-14 parts of albite and 24-32 parts of an inorganic antibacterial agent;

inner glaze: 7-18 parts of feldspar, 8-17 parts of mullite, 9-16 parts of kaolin, 56-78 parts of meteorite powder, 10-15 parts of silicon dioxide, 11-14 parts of aluminum oxide, 4-7 parts of albite and 12-16 parts of an inorganic antibacterial agent;

42-66 parts of sodium methylsilicate and 14-22 parts of 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution with the concentration of 3.4-3.7 mol/L.

Preferably, the mass ratio of the same raw materials in the outer glaze and the inner glaze is 2: 1.

Preferably, the mass ratio of the sodium methyl silicate to the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is 3: 1.

Preferably, the inorganic antibacterial agent is prepared by mixing nano montmorillonite and tetraethyl ammonium chloride aqueous solution according to the mass ratio of 3:2, wherein the concentration of the tetraethyl ammonium chloride aqueous solution is 7-12%.

A manufacturing process of a fixed kiln porcelain fused with meteorites comprises the following steps:

s1, weighing the raw materials according to the weight;

s2, preparing mud: grinding the porcelain stone and kaolin in the blank with water, washing, removing impurities, precipitating, making into brick-shaped mud blocks, blending the mud blocks with water, removing residues, extruding air out of the mud blocks, and making the water content in the mud uniform to obtain porcelain mud;

s3, blank making: throwing the porcelain clay at the center of a rotary disc on a windlass vehicle, drawing the porcelain clay into the shape of a green body according to the bending and stretching of a manipulation to obtain a primary blank, then placing the primary blank on a barrel of the windlass vehicle, rotating the vehicle disc, and rotationally cutting the primary blank by a knife to obtain the green body;

s4, primary kiln burning: placing the green body into a kiln at 710-760 ℃ for firing for 3.5-4 hours, stopping firing, cooling to room temperature, and taking out the fired green body for later use;

s5, applying outer glaze: uniformly mixing the outer glaze raw materials, putting the mixture into a ball mill for grinding, adding water accounting for 21-23% of the total amount of the outer glaze raw materials into the ground raw materials to prepare outer glaze slurry, immersing the outer surface of the biscuit in the outer glaze slurry in a glaze dipping mode, and taking out and finishing the biscuit for later use after the glaze dipping is finished;

s6, inner glazing: uniformly mixing the inner glaze raw materials, putting the mixture into a ball mill for grinding, adding water accounting for 13-17% of the total amount of the inner glaze raw materials into the ground raw materials to prepare inner glaze slurry, glazing the inner surface of the blank obtained in S5 in a glaze spraying mode, and finishing and perfecting the glaze spraying mode for later use;

s7, secondary kiln burning: putting the glazed blank in the S6 into the kiln again, ventilating in the kiln, firing the blank in an oxidizing atmosphere, controlling the firing temperature in the kiln, raising the temperature in the kiln to 1100 ℃ within 3.5-6 hours, then continuing to raise the temperature to 1200 ℃, reducing the ventilation volume of the kiln, firing the blank at the temperature of 1200 ℃ for 45-50 minutes, then continuing to raise the temperature, firing the blank at the high temperature of 1280-1400 ℃ for 0.3-0.4 hours, stopping firing, naturally cooling to room temperature, and taking out of the kiln to obtain the fixed kiln with meteorites;

s8, post-processing: pouring sodium methyl silicate into the 1-ethanol-based-3-methylimidazole bis (trifluoromethyl) sulfonic acid imine solution, mixing uniformly, dipping and uniformly smearing on the inner and outer surfaces of the fixed kiln porcelain by using a brush, smearing for 2-3 times back and forth, and airing at room temperature.

Preferably, the grinding time in S5 and S6 is 15-17 hours.

Preferably, the thickness of the external glaze applied in S5 is between 0.52 and 0.57mm, and the thickness of the internal glaze applied in S6 is between 0.43 and 0.48.

Preferably, in S7, the process of raising the temperature to 1100 ℃ specifically includes: heating to 400 ℃, uniformly heating to 1000 ℃, and then continuously heating to 1100 ℃, wherein the temperature is increased at the speed of 5-7 ℃ per minute in the uniform heating process.

Preferably, in S7, the temperature is increased at a rate of 1-3 ℃ per minute during the period from 1200 ℃ to the final temperature.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution are added, wherein the sodium methyl silicate has certain water-blocking capability, but the water-blocking capability of the sodium methyl silicate can be further improved after the sodium methyl silicate and the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution are mixed and prepared according to the proportion of 3: 1.

2. According to the invention, the nano montmorillonite and tetraethylammonium chloride aqueous solution are added, the quaternary ammonium salt aqueous solution is acidic, and after acid treatment, the strong cation exchange capacity of the nano montmorillonite is matched, so that cations such as K, Na, Ca, Mg and the like among montmorillonite layers are converted into acid soluble salts to be dissolved out, and the quaternary ammonium salt is favorable for the antibacterial components in the dissolved cations to pass through a lipid bilayer cell membrane outside the hydrophobic end of bacteria, thereby acting on the cells and killing the cells, and greatly improving the antibacterial capacity on escherichia coli.

Detailed Description

The present invention will be further illustrated with reference to the following specific examples.

Example 1:

weighing the following raw materials in parts by mass:

blank material: 40 parts of porcelain stone, 60 parts of kaolin and 35 parts of potassium feldspar;

and (3) external glazing: 14 parts of feldspar, 16 parts of mullite, 18 parts of kaolin, 20 parts of silicon dioxide, 22 parts of aluminum oxide, 8 parts of albite and 24 parts of an inorganic antibacterial agent;

inner glaze: 7 parts of feldspar, 8 parts of mullite, 9 parts of kaolin, 56 parts of meteorite powder, 10 parts of silicon dioxide, 11 parts of aluminum oxide, 4 parts of albite and 12 parts of an inorganic antibacterial agent;

42 parts of sodium methylsilicate and 14 parts of 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution.

Example 2:

weighing the following raw materials in parts by mass:

blank material: 45 parts of porcelain stone, 65 parts of kaolin and 38 parts of potassium feldspar;

and (3) external glazing: 24 parts of feldspar, 26 parts of mullite, 24 parts of kaolin, 26 parts of silicon dioxide, 24 parts of aluminum oxide, 12 parts of albite and 28 parts of an inorganic antibacterial agent;

inner glaze: 12 parts of feldspar, 13 parts of mullite, 12 parts of kaolin, 67 parts of meteorite powder, 13 parts of silicon dioxide, 12 parts of aluminum oxide, 6 parts of albite and 14 parts of an inorganic antibacterial agent;

54 parts of sodium methylsilicate and 18 parts of 1-ethanol-group-3-methylimidazole bistrifluoromethylsulfonic acid imine solution.

Example 3:

weighing the following raw materials in parts by mass:

blank material: 50 parts of porcelain stone, 70 parts of kaolin and 42 parts of potassium feldspar;

and (3) external glazing: 36 parts of feldspar, 34 parts of mullite, 32 parts of kaolin, 30 parts of silicon dioxide, 28 parts of aluminum oxide, 14 parts of albite and 32 parts of an inorganic antibacterial agent;

inner glaze: 18 parts of feldspar, 17 parts of mullite, 16 parts of kaolin, 78 parts of meteorite powder, 15 parts of silicon dioxide, 14 parts of aluminum oxide, 7 parts of albite and 16 parts of an inorganic antibacterial agent;

and 66 parts of sodium methylsilicate and 22 parts of 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution.

In examples 1 to 3 above, the concentration of the 1-ethanol-based-3-methylimidazolium bistrifluoromethylsulfonate solution is 3.4 to 3.7mol/L, preferably 3.4 mol/L; the mass ratio of the same raw materials in the outer glaze to the inner glaze is 2: 1; the mass ratio of the sodium methyl silicate to the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is 3: 1; the inorganic antibacterial agent is formed by mixing nano montmorillonite and tetraethyl ammonium chloride aqueous solution according to the mass ratio of 3:2, wherein the concentration of the tetraethyl ammonium chloride aqueous solution is 7-12%, and the preference is 9%;

the preparation method of the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution comprises the following steps:

adding 75mol of N-methylimidazole into a mixed solvent (volume ratio is 1:1) of ethyl acetate and acetonitrile, heating to 85 ℃, after temperature is balanced, dropwise adding 1.1-time molar ratio of 2-chloroethanol into the mixed solvent, after dropwise adding, continuing heating for 8 hours, after reaction is completed, recrystallizing and purifying the product, dissolving the product with acetonitrile, adding 30mL of acetonitrile into the product until the product is just dissolved, dropwise adding the solution into cold ethyl acetate under continuous stirring until white solid is separated out, and filtering to obtain 1-ethanol-based-3-methylimidazole chloride salt;

dissolving the precipitated 1-ethanol-based-3-methylimidazole chloride salt in distilled water (the volume ratio is 1:1.3), adding bis (trifluoromethyl) sulfonic acid imine lithium with equal molar mass into the distilled water, stirring the solution at room temperature for 3 hours, standing the solution, layering the solution to obtain a lower colorless transparent liquid, namely the 1-ethanol-based-3-methylimidazole bis (trifluoromethyl) sulfonic acid imine solution, and separating the liquid by using a separating funnel to obtain the product.

The above examples 1 to 3 all produced the fixed kiln porcelain by the following process:

s1, preparing mud: grinding the porcelain stone and kaolin in the blank with water, washing, removing impurities, precipitating, making into brick-shaped mud blocks, blending the mud blocks with water, removing residues, extruding air out of the mud blocks, and making the water content in the mud uniform to obtain porcelain mud;

s2, blank making: throwing the porcelain clay at the center of a rotary disc on a windlass vehicle, drawing the porcelain clay into the shape of a green body according to the bending and stretching of a manipulation to obtain a primary blank, then placing the primary blank on a barrel of the windlass vehicle, rotating the vehicle disc, and rotationally cutting the primary blank by a knife to obtain the green body;

s3, primary kiln burning: placing the green body into a kiln at 760 ℃ for firing for 4 hours, stopping firing, cooling to room temperature, and taking out the fired biscuit for later use;

s4, applying outer glaze: uniformly mixing the outer glaze raw materials, putting the mixture into a ball mill, grinding the mixture for 15 hours, adding water accounting for 21 percent of the total amount of the outer glaze raw materials into the ground raw materials to prepare outer glaze slurry, immersing the outer surface of the biscuit in the outer glaze slurry in a glaze dipping mode, taking out the biscuit after the glaze dipping is finished, and finishing the biscuit for later use, wherein the thickness of the outer glaze is 0.52-0.57 mm;

s5, inner glazing: uniformly mixing the inner glaze raw materials, putting the mixture into a ball mill, grinding the mixture for 15 hours, adding water accounting for 13 percent of the total amount of the inner glaze raw materials into the ground raw materials to prepare inner glaze slurry, glazing the inner surface of the blank obtained in S4 in a glaze spraying mode, finishing the blank after the glaze spraying is finished, and keeping the inner glaze thickness between 0.43 and 0.48 for later use;

s6, secondary kiln burning: putting the blank body after the glazing of the S5 into the kiln again, ventilating in the kiln, firing the blank body in an oxidizing atmosphere, controlling the firing temperature in the kiln, raising the temperature to 400 ℃ within 5 hours, uniformly raising the temperature to 1000 ℃, then continuing to raise the temperature to 1100 ℃, wherein the temperature is raised at the speed of 5 ℃ per minute in the uniform temperature raising process, then continuing to raise the temperature to 1200 ℃, reducing the ventilation amount of the kiln, firing the blank body at the temperature of 1200 ℃ for 45 minutes, then raising the temperature at the speed of 3 ℃ per minute, firing the blank body at the high temperature of 1400 ℃ in the final temperature interval of 1280 and 1400 ℃ for 0.3 hours, stopping firing, naturally cooling to room temperature, and taking out of the kiln to obtain the fixed kiln with meteorites;

s7, post-processing: pouring sodium methyl silicate into the 1-ethanol-based-3-methylimidazole bis (trifluoromethyl) sulfonic acid imine solution, mixing uniformly, dipping and uniformly smearing on the inner and outer surfaces of the fixed kiln porcelain by using a brush, smearing for 2-3 times back and forth, and airing at room temperature.

Test one: measurement of Water-blocking Property of fixed kiln porcelain

Comparative example 1: compared with the example 1, except that the 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is not added, the rest is the same;

comparative example 2: compared with the example 2, the difference is that 1-ethanol-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is not added, and the rest is the same;

comparative example 3: compared with the example 3, except that the 1-ethanol-3-methylimidazole bistrifluoromethylsulfonic acid imine solution is not added, the rest is the same;

the above comparative examples 1 to 3 were prepared by the following procedure: compared with the preparation process of the example, the post-treatment process at S7 is simply replaced by: dipping the sodium methyl silicate in water by a brush, uniformly coating the water on the inner surface and the outer surface of the fixed-kiln porcelain, coating the water for 2 to 3 times back and forth, and drying the water at room temperature; the rest of the processes S1-S6 are consistent.

Reference example 1: compared with the example 1, the difference is that sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution are not added, and the rest is the same;

reference example 2: compared with the example 2, except that sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution are not added, the rest is the same;

reference example 3: compared with the example 3, except that sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imine solution are not added, the rest is the same;

the preparation process of the reference examples 1 to 3 is as follows: compared with the preparation process of the embodiment, the process is stopped just after the S6 process is finished, the S7 process is not performed any more, and the rest steps are consistent.

The following tests were carried out on the fixed kiln porcelain produced in the above examples 1 to 3, comparative examples 1 to 3 and reference examples 1 to 3:

a water tank was filled with 2/3 of water, the porcelain was placed in the water tank and immersed, the weight of the porcelain was weighed before immersion and recorded as M1, and placed in the test chamber, and after one week the porcelain was removed and the weight was measured again and recorded as M2, the water absorption (%) was [ (M2-M1)/M1] x 100%, and the test results were recorded in the following table:

in each of the above test groups, the raw materials added in the examples included sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imide solution, the raw materials added in the comparative examples did not include 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imide solution, and the raw materials added in the reference examples did not include sodium methyl silicate and 1-ethanol-based-3-methylimidazole bistrifluoromethylsulfonic acid imide solution;

as is clear from the above test data, in each test group, the water absorption rates were as follows, that is, the porcelain produced in the example was the most water resistant porcelain, and the porcelain produced in the reference example was the weakest porcelain.

Therefore, although the addition of the sodium methyl silicate can enable the porcelain to have certain water-blocking capability and prevent water from permeating into the porcelain, the water-blocking capability can be further improved when the sodium methyl silicate is matched with the 1-ethanol-based-3-methylimidazolium bistrifluoromethylsulfonic acid imine solution for use.

And (2) test II: measurement of antibacterial Properties against constant-temperature porcelain (Escherichia coli as an example)

Comparative example 4: compared with the example 1, the difference is that the inorganic antibacterial agent does not contain the tetraethyl ammonium chloride aqueous solution, and the rest is the same;

comparative example 5: compared with the example 2, the difference is that the inorganic antibacterial agent does not contain the tetraethyl ammonium chloride aqueous solution, and the rest is the same;

comparative example 6: compared with the example 3, the difference is that the inorganic antibacterial agent does not contain the tetraethyl ammonium chloride aqueous solution, and the rest is the same;

the above-mentioned production processes of comparative examples 4 to 6 were all in accordance with those of examples 1 to 3.

Reference example 4: compared with the example 1, the difference is that no inorganic antibacterial agent is added, and the rest is the same;

reference example 5: compared with the example 2, except that the inorganic antibacterial agent is not added, the rest is the same;

reference example 6: compared with the example 3, except that the inorganic antibacterial agent is not added, the rest is the same;

the above-mentioned production processes of reference examples 4 to 6 were all in accordance with the production processes of examples 1 to 3.

The porcelain for stationary kiln prepared in the above examples 1 to 3, comparative examples 4 to 6 and reference examples 4 to 6 was subjected to the bacteriostatic test by the following method:

preparation of bacterial suspension: inoculating strains (taking Escherichia coli as an example) on a potato glucose agar culture medium, culturing at 28 ℃ for 48h, picking a small amount of bacteria from an inoculating loop into a test tube filled with sterile water, shaking uniformly to prepare a bacterial suspension, and measuring the bacterial concentration by using a plate bacterial colony counting method;

secondly, placing the porcelain in the bacterial suspension, taking out the porcelain after one week, sampling, calculating the bacterial concentration in the bacterial suspension again by using a flat plate bacterial colony calculation method, and recording the bacterial concentration in the following table:

in each of the above test groups, the raw materials added in the examples include nano montmorillonite and tetraethyl ammonium chloride aqueous solutions, the raw materials added in the comparative examples do not include tetraethyl ammonium chloride aqueous solutions, and the raw materials added in the reference examples do not include nano montmorillonite and tetraethyl ammonium chloride aqueous solutions;

as can be seen from the test data in the table above, in each test group, the porcelain in the example has the highest bacteriostatic rate, and the porcelain in the comparative example has the second highest bacteriostatic rate, and the porcelain with the lowest bacteriostatic rate belongs to the reference example without any antibacterial agent, so that it can be seen that a certain bacteriostatic effect can be achieved by adding a proper amount of nano-montmorillonite, and the bacteriostatic effect can be further improved by matching with a tetraethylammonium chloride aqueous solution.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.