Blue-and-white glaze as well as preparation method and application thereof

Abstract

The invention discloses a blue-and-white glaze and a preparation method and application thereof, and belongs to the technical field of inorganic non-metallic materials (ceramics), the blue-and-white glaze comprises quartz, feldspar, limestone, plant ash and other basic raw materials, zinc oxide, aluminum oxide, lanthanum oxide, cerium oxide and other rare earth elements, and a modified organic additive is introduced. Compared with the prior art, the blue-and-white glaze shows excellent stability in the drying and firing process, the phenomena of cracking and glaze stripping are effectively reduced, the friction coefficient after firing is low, the breaking strength and the breaking modulus are high, the glossiness and transparency of a glaze surface are remarkably improved, and the blue-and-white glaze has important application value.

Description

Technical Field

[0001] The present invention relates to the technical field of inorganic non-metallic materials (ceramics), and in particular to a blue and white glaze and a preparation method and application thereof. Background Art

[0002] Blue and white glaze is an indispensable material in ceramic manufacturing and is widely used in the surface decoration of various ceramic products. Traditional blue and white glaze is mainly composed of basic raw materials such as quartz, feldspar, limestone, and wood ash, with small amounts of zinc oxide and aluminum oxide added. After mixing, calcining, and ball milling, these raw materials are formed into a glaze slurry with a certain degree of fluidity and adhesion. This slurry is applied to the surface of the ceramic body and fired at high temperature to form the blue and white pattern.

[0003] However, existing blue and white glazes lack adhesion, mechanical properties, and stability. For example, during the drying and firing processes, the glazes are prone to cracking and deglazing, resulting in a decrease in the gloss and transparency of the glaze surface. Furthermore, traditional blue and white glazes have a high coefficient of friction and low breaking strength and modulus of rupture, which affect the overall quality and service life of ceramic products. These issues limit the application of blue and white glazes in high-end ceramic products, especially in applications requiring high wear resistance, high gloss, and a low coefficient of friction.

[0004] In recent years, with the development of ceramic technology, researchers have begun to explore ways to improve the performance of blue and white glazes by adding modified organic additives. For example, Chinese Patent Publication No. CN103980005A discloses a method for preparing a blue and white material that exhibits the coloring effect of Kangxi blue and white porcelain. The method uses a SiO2-Al2O3-Co2O3-Fe2O3-MnO integrated system to synthesize blue and white colorants through high-temperature calcination. Although it can achieve a good coloring effect, it still needs to be improved in terms of adhesion and mechanical properties. Chinese Patent Publication No. CN107352799A discloses a microcrystalline jadeite exquisite glaze and its application method. By adding a variety of natural mineral raw materials, it restores the decorative effect of traditional exquisite porcelain, but its main focus is on the decorative effect of the glaze surface, and the improvement of adhesion and mechanical properties is limited.

[0005] Therefore, developing a blue and white glaze with excellent adhesion, mechanical properties and stability is of great significance to improving the quality and market competitiveness of ceramic products. Summary of the Invention

[0006] In order to address the deficiencies in the prior art, the present invention aims to provide a blue and white glaze and a preparation method and application thereof.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] A blue and white glaze comprises the following raw materials in parts by weight:

[0009] 25-35 parts of quartz, 30-40 parts of feldspar, 15-25 parts of limestone, 8-12 parts of wood ash, 1-3 parts of zinc oxide, 4-6 parts of aluminum oxide, 1-3 parts of silicon micropowder, 1-2 parts of bentonite, 0.5-2 parts of montmorillonite, 0.05-0.2 parts of lanthanum oxide, 0.1-0.3 parts of cerium oxide, and 0.5-1 parts of modified organic additives.

[0010] The preparation method of the blue and white glaze is as follows:

[0011] The quartz, feldspar, limestone and wood ash are washed separately to remove impurities, the limestone is pre-calcined into quicklime, all the raw materials are crushed into fine powder, sieved, and each raw material is weighed according to weight. The quartz, feldspar, quicklime and wood ash are mixed, and zinc oxide, aluminum oxide, silica powder, bentonite, montmorillonite, lanthanum oxide, cerium oxide are added. Water is added to make a glaze slurry, and then modified organic additives are added and stirred evenly to obtain a blue and white glaze.

[0012] The limestone is calcined at 900-1000° C. in advance to become quicklime.

[0013] The sieving is through a 100-300 mesh sieve.

[0014] The water content of the glaze slurry is 40-45wt%.

[0015] The preparation method of the modified organic additive is as follows:

[0016] Sodium carboxymethyl cellulose is added to water, and functional monomers are added, and a first electron beam irradiation treatment is performed; a polyol compound is added, and a second electron beam irradiation is performed; N-aminoethyl-3-aminopropyltriethoxysilane and glutaraldehyde are added, mixed and stirred; and the mixture is filtered through a reverse osmosis membrane and dried to obtain a modified organic additive.

[0017] Preferably, the preparation method of the modified organic additive is as follows, in parts by weight:

[0018] 20-40 parts of sodium carboxymethyl cellulose are added to 150-250 parts of water, and 2-4 parts of functional monomers are added, and a first electron beam irradiation treatment is performed for 20-40 minutes with a radiation dose of 10-30 kGy. Then, 4-8 parts of polyol compounds are added, and a second electron beam irradiation is performed for 10-30 minutes with a dose of 10-30 kGy. 5-10 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 1-3 parts of glutaraldehyde are added to the system, mixed and stirred, filtered through a reverse osmosis membrane, and dried to obtain a modified organic additive.

[0019] The functional monomer is at least one of acrylamide, acryl glycinamide and maleic acid diamine.

[0020] The polyol compound is at least one of polyethylene glycol, polypropylene glycol, sorbitol and polyvinyl alcohol.

[0021] The pore size of the reverse osmosis membrane is 0.15-0.25 μm.

[0022] The application of the blue and white glaze is as follows:

[0023] The green body is immersed in the blue and white glaze and quickly lifted up to ensure uniform coverage of the glaze layer; the blue and white glaze is applied to the surface of the green body by pouring glaze; the blue and white glaze is applied to the surface of the green body by brushing glaze or blowing glaze; or the blue and white glaze is applied to the surface of the green body by spraying glaze; the glazed green body is placed in a kiln for firing, and the firing temperature is controlled at 1280°C-1350°C.

[0024] The blue and white glaze in the prior art is insufficient in adhesion, mechanical properties and stability. For example, cracking and deglazing are prone to occur during drying and firing, resulting in a decrease in glaze gloss and transparency. At the same time, the friction coefficient is high, and the breaking strength and modulus of rupture are low, affecting the overall quality and service life of ceramic products. In order to solve these problems, the present invention provides a blue and white glaze and a preparation method thereof, which is prepared by introducing a modified organic additive, wherein the additive is cross-linked by electron beam radiation with sodium carboxymethyl cellulose and a functional monomer, and then a polyol compound is added for secondary radiation treatment, and finally the additive is blended and stirred with a silane coupling agent and glutaraldehyde, and filtered and dried with a reverse osmosis membrane. This modified organic additive significantly enhances the adhesion and mechanical properties of the blue and white glaze, reduces the friction coefficient, improves the breaking strength and modulus of rupture, and significantly improves the gloss and transparency of the glaze. It is superior to the prior art in all aspects and has important application value.

[0025] In the present invention, the functions of each substance are as follows:

[0026] Quartz acts as the main glass former, providing hardness and stability, reducing the coefficient of expansion of the glaze and preventing the glaze from cracking.

[0027] Feldspar acts as a flux, lowering the melting point of the glaze and improving the gloss and transparency of the glaze.

[0028] After calcining, limestone produces calcium oxide, which acts as a flux, lowering the melting point of the glaze and enhancing the chemical stability of the glaze.

[0029] Wood ash contains a variety of oxides, such as K2O, Na2O, etc., which act as natural flux to improve the fluidity of glaze and increase the gloss of glaze surface.

[0030] Zinc oxide improves the chemical stability and mechanical strength of the glaze, and enhances the hardness and wear resistance of the glaze surface.

[0031] Alumina improves the chemical stability and mechanical strength of the glaze, enhances the hardness and wear resistance of the glaze surface, and improves the suspension of the glaze.

[0032] Silica powder provides additional silicon dioxide, which enhances the chemical stability and mechanical strength of the glaze and improves the gloss of the glaze.

[0033] Bentonite acts as a suspending agent to enhance the suspension and stability of the glaze slurry and prevent precipitation.

[0034] Montmorillonite acts as a suspending agent to enhance the suspension and stability of the glaze slurry, prevent precipitation, and improve the adhesion of the glaze slurry.

[0035] Lanthanum oxide improves the chemical stability and mechanical strength of the glaze, and improves the gloss and transparency of the glaze.

[0036] Cerium oxide improves the chemical stability and mechanical strength of the glaze, improves the gloss and transparency of the glaze, and also has certain UV resistance.

[0037] Sodium carboxymethyl cellulose, as a basic polymer material, provides good water solubility and film-forming properties, enhancing the suspension and adhesion of the glaze slurry.

[0038] The functional monomer undergoes a cross-linking reaction with sodium carboxymethyl cellulose to enhance the cross-linking density of the molecular chain and improve the mechanical properties and adhesion of the glaze slurry.

[0039] Polyol compounds improve the flexibility and fluidity of sodium carboxymethyl cellulose and reduce cracking during drying and firing.

[0040] N-aminoethyl-3-aminopropyltriethoxysilane is used as a coupling agent to enhance the bonding strength between sodium carboxymethyl cellulose and inorganic fillers, thereby improving the mechanical properties and heat resistance of the composite material.

[0041] Glutaraldehyde acts as a cross-linking agent to further enhance the cross-linking density of the molecular chain and improve the mechanical properties and adhesion of the glaze slurry.

[0042] These substances work together to form a blue and white glaze with excellent properties. The introduction of modified organic additives significantly enhances the glaze's adhesion, suspension, and mechanical properties, effectively reducing cracking during drying and firing, improving the glaze's gloss and transparency, while also reducing the coefficient of friction and increasing its breaking strength and modulus of rupture.

[0043] Compared with the existing technology, it has the following beneficial effects:

[0044] 1) The modified organic additive of the present invention significantly enhances the bonding force between the blue and white glaze and the body by forming a three-dimensional network structure, effectively reduces the cracking of the glaze layer during drying and the deglazing after firing, thereby significantly reducing the friction coefficient.

[0045] 2) The functional monomers and polyol compounds in the modified organic additives of the present invention significantly improve the mechanical properties of the blue and white glaze by strengthening the cross-linked network and filling the micropores, thereby achieving higher breaking strength and rupture modulus.

[0046] 3) The silane coupling agent and glutaraldehyde in the modified organic additive of the present invention further enhance the bonding force between the glaze and the body through chemical bonding, while improving the suspension stability and drying performance of the glaze slurry, effectively reducing the cracking and deglazing of the glaze layer. DETAILED DESCRIPTION

[0047] Main sources of substances:

[0048] Sodium carboxymethyl cellulose, product number: 101, Shandong Changxiao Bioengineering Co., Ltd.

[0049] Polyvinyl alcohol, cold water soluble, 120 mesh, model: 1788, Shenzhen Boshun Chemical Co., Ltd.

[0050] Polypropylene glycol, model: PPG200, Jiangsu Maoheng Chemical Co., Ltd.

[0051] Polyethylene glycol, model: PEG200, Nantong Jienuo Chemical Co., Ltd.

[0052] Silica micropowder, mesh size: 325 mesh, item number: 1236, Lingshou County Fengyue Mineral Processing Plant.

[0053] The remaining raw materials in the examples and comparative examples of the present invention are all commercially available products.

[0054] Example 1

[0055] A preparation method of a blue and white glaze is as follows, in parts by weight:

[0056] Quartz, feldspar, limestone and wood ash are washed separately to remove impurities. 20 parts of limestone are pre-calcined at 950℃ to become quicklime. All raw materials are crushed to fine powder and passed through a 200-mesh sieve. 30 parts of quartz, 35 parts of feldspar, quicklime and 10 parts of wood ash are mixed. 2 parts of zinc oxide, 5 parts of aluminum oxide, 2 parts of silicon micropowder and 1.5 parts of bentonite, 1 part of montmorillonite, 0.1 part of lanthanum oxide and 0.2 part of cerium oxide are added. Water is added to make a glaze slurry with a water content of 42wt%. Then 0.8 parts of modified organic additives are added and stirred evenly to obtain a blue and white glaze.

[0057] The preparation method of the modified organic additive is as follows, in parts by weight:

[0058] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of acryloyl glycinamide are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polyvinyl alcohol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm and dried to obtain a modified organic additive.

[0059] Example 2

[0060] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0061] The preparation method of the modified organic additive is as follows, in parts by weight:

[0062] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of acrylamide are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polyvinyl alcohol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm and dried to obtain a modified organic additive.

[0063] Example 3

[0064] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0065] The preparation method of the modified organic additive is as follows, in parts by weight:

[0066] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of acryloyl glycinamide are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of sorbitol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm, and dried to obtain a modified organic additive.

[0067] Example 4

[0068] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0069] The preparation method of the modified organic additive is as follows, in parts by weight:

[0070] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of acryloylglycinamide are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polypropylene glycol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm and dried to obtain a modified organic additive.

[0071] Example 5

[0072] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0073] The preparation method of the modified organic additive is as follows, in parts by weight:

[0074] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of maleic acid diamine are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polyvinyl alcohol are added, and a second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm, and dried to obtain a modified organic additive.

[0075] Comparative Example 1

[0076] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0077] The preparation method of the modified organic additive is as follows, in parts by weight:

[0078] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of allylamine are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polyvinyl alcohol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm, and dried to obtain a modified organic additive.

[0079] Comparative Example 2

[0080] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being the preparation method of the modified organic additive.

[0081] The preparation method of the modified organic additive is as follows, in parts by weight:

[0082] 30 parts of sodium carboxymethyl cellulose are added to 200 parts of water, and 3 parts of acryloylglycinamide are added, and the first electron beam irradiation treatment is performed for 30 minutes with a radiation dose of 20 kGy. Then, 6 parts of polyethylene glycol are added, and the second electron beam irradiation is performed for 20 minutes with a dose of 20 kGy. 7 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 2 parts of glutaraldehyde are added to the system and blended and stirred. The mixture is filtered through a reverse osmosis membrane with a pore size of 0.2 μm, and dried to obtain a modified organic additive.

[0083] Comparative Example 3

[0084] The preparation method of a blue and white glaze is basically the same as that of Example 1, the only difference being that the modified organic additive is replaced by an equal amount of sodium carboxymethyl cellulose.

[0085] Application Example 1

[0086] The applications of the blue and white glazes prepared in the embodiments and comparative examples are as follows:

[0087] The blue and white glaze was applied to the surface of the blank by spraying glaze, with a dosage of 300g / m 2 The glaze density is 1.50, and the glaze flow rate is 25s; the glazed body is placed in the kiln for firing, and the final firing temperature is controlled at 1300℃. A strong reducing flame (CO environment) is maintained during the firing process. The firing time is 12 hours, the cooling time is 12 hours, and the body is taken out when the temperature drops below 60℃.

[0088] Test Example 1

[0089] Determination of friction coefficient:

[0090] The friction coefficient determination method used in this test is based on the relevant provisions of Appendix M of the national standard GB / T4100-2015 "Ceramic Tiles." Specifically, the friction coefficient is the ratio of the tangential force to the perpendicular force acting on an object when it is sliding or has a tendency to slide. To accurately measure this parameter, this test used a CJ-Y static friction coefficient tester produced by the Ningxia Machinery Research Institute. The test results are shown in Table 1.

[0091] Table 1

[0092] Experimental plan Static friction coefficient Example 1 0.29 Example 2 0.33 Example 3 0.35 Example 4 0.32 Example 5 0.26 Comparative Example 1 0.35 Comparative Example 2 0.34 Comparative Example 3 0.41

[0093] Test Example 2

[0094] Destructive strength and rupture modulus test:

[0095] This experiment tested the destructive strength and rupture modulus of the finished products fired by spraying the blue and white glaze in Application Example 1 using the blue and white glaze of various embodiments and comparative examples. The specific operation is: select 5 pieces of ceramic products as samples, place them in a drying oven with a temperature controlled at 110±5°C for drying, until the sample reaches a constant weight state, that is, the difference between two consecutive weighings (24 hours apart) does not exceed 0.1%. Subsequently, the dried sample is moved to a sealed drying oven or desiccator and cooled to room temperature for 3 hours. After cooling, the sample is tested for destructive strength and rupture modulus in accordance with the relevant provisions of the national standard GB / T 3810.4-2016 "Test methods for ceramic tiles Part 4: Determination of modulus of rupture and destructive strength". The test results are shown in Table 2.

[0096] Table 2

[0097] Experimental plan Destructive strength / N Modulus of rupture / MPa Example 1 1284 49.6 Example 2 1196 47.8 Example 3 1139 46.9 Example 4 1180 47.3 Example 5 1351 50.5 Comparative Example 1 1152 47.0 Comparative Example 2 1140 47.1 Comparative Example 3 1076 45.8

[0098] It can be seen from the data of Test Examples 1 and 2 that the blue and white glaze prepared in Example 1 has a lower static friction coefficient and higher breaking strength and rupture modulus than those of Examples 2-4 and the comparative example.

[0099] Compared to acrylamide and allylamine, acryloylglycinamide significantly improves the performance of modified organic additives, primarily due to its unique bisamide structure. The bisamide groups form hydrogen bonds with the hydroxyl groups of sodium carboxymethylcellulose, enhancing crosslink density, improving glaze slurry suspension stability, reducing drying shrinkage stress, and improving adhesion. Furthermore, its hydrogen bond network evenly disperses rare earth elements and inhibits grain boundary segregation, resulting in a lower friction coefficient and higher breaking strength and modulus of rupture. However, acrylamide suffers from a lack of hydrogen bond density in its monoamide groups, while allylamine lacks amide groups, resulting in poor crosslinking network stability and ultimately reduced mechanical properties of the glaze layer.

[0100] Polyvinyl alcohol significantly improves the performance of blue and white glaze through its unique molecular structure: its alcohol hydroxyl group forms a three-dimensional hydrogen bond network with sodium carboxymethyl cellulose and silane coupling agent, enhancing the suspension stability of the glaze slurry and buffering drying stress, thereby reducing the friction coefficient; during the reduction firing at 1300°C, the amorphous carbon generated by the thermal decomposition of polyvinyl alcohol fills the micropores of the glaze layer, increasing the destructive strength and rupture modulus; in comparison, sorbitol (low molecular weight) and polyethylene glycol (linear chain decomposition at high temperature) cannot build a stable network.

[0101] Maleic acid diamine significantly enhances the performance of modified organic additives through its diamine structure. The two amine groups in its molecule can form multiple hydrogen bonds with the hydroxyl groups of sodium carboxymethyl cellulose, constructing a more complex three-dimensional network than acryloyl glycinamide. This improves the suspension stability of the glaze slurry, reduces drying shrinkage stress, enhances adhesion, and inhibits the grain boundary segregation of rare earth elements in the glaze layer, resulting in a lower friction coefficient and higher breaking strength and rupture modulus.

Claims

1. A blue and white glaze, characterized in that: The invention comprises the following raw materials in parts by weight: 25-35 parts of quartz, 30-40 parts of feldspar, 15-25 parts of limestone, 8-12 parts of wood ash, 1-3 parts of zinc oxide, 4-6 parts of aluminum oxide, 1-3 parts of silica powder, 1-2 parts of bentonite, 0.5-2 parts of montmorillonite, 0.05-0.2 parts of lanthanum oxide, 0.1-0.3 parts of cerium oxide, and 0.5-1 parts of modified organic additives; The preparation method of the modified organic additive is as follows: Sodium carboxymethyl cellulose is added to water, and a functional monomer is added, and the mixture is subjected to a first electron beam irradiation treatment; a polyol compound is added, and the mixture is subjected to a second electron beam irradiation treatment; N-aminoethyl-3-aminopropyltriethoxysilane and glutaraldehyde are added, and the mixture is blended and stirred; The modified organic additive is obtained by filtering through a reverse osmosis membrane and drying.

2. A method for preparing the blue and white glaze according to claim 1, characterized in that: Here’s how: The quartz, feldspar, limestone and wood ash are washed separately to remove impurities, the limestone is pre-calcined into quicklime, all the raw materials are crushed into fine powder, sieved, and each raw material is weighed according to weight. The quartz, feldspar, quicklime and wood ash are mixed, and zinc oxide, aluminum oxide, silica powder, bentonite, montmorillonite, lanthanum oxide, cerium oxide are added. Water is added to make a glaze slurry, and then modified organic additives are added and stirred evenly to obtain a blue and white glaze.

3. The method according to claim 2, wherein The limestone is calcined at 900-1000° C. in advance to become quicklime.

4. The method according to claim 2, wherein The sieving is through a 100-300 mesh sieve.

5. The method according to claim 2, wherein The water content of the glaze slurry is 40-45wt%.

6. The method according to claim 2, wherein The preparation method of the modified organic additive is as follows, in parts by weight: 20-40 parts of sodium carboxymethyl cellulose are added to 150-250 parts of water, and 2-4 parts of functional monomers are added, and a first electron beam irradiation treatment is performed for 20-40 minutes with a radiation dose of 10-30 kGy. Then, 4-8 parts of polyol compounds are added, and a second electron beam irradiation is performed for 10-30 minutes with a dose of 10-30 kGy. 5-10 parts of N-aminoethyl-3-aminopropyltriethoxysilane and 1-3 parts of glutaraldehyde are added to the system, mixed and stirred, filtered through a reverse osmosis membrane, and dried to obtain a modified organic additive.

7. The method according to claim 6, wherein The functional monomer is at least one of acrylamide, acryl glycinamide and maleic acid diamine.

8. The method according to claim 6, wherein The polyol compound is at least one of polyethylene glycol, polypropylene glycol, sorbitol and polyvinyl alcohol.

9. The method according to claim 6, wherein The pore size of the reverse osmosis membrane is 0.15-0.25 μm.

10. The use of the blue and white glaze according to claim 1, characterized in that: The applications are as follows: The green body is immersed in the blue and white glaze and quickly lifted up to ensure uniform coverage of the glaze layer; the blue and white glaze is applied to the surface of the green body by pouring glaze; the blue and white glaze is applied to the surface of the green body by brushing glaze or blowing glaze; or the blue and white glaze is applied to the surface of the green body by spraying glaze; the glazed green body is placed in a kiln for firing, and the firing temperature is controlled at 1280°C-1350°C.