Easy-to-clean high-hardness antibacterial water-based ceramic coating and preparation process thereof

Abstract

The invention discloses an easy-to-clean high-hardness antibacterial water-based ceramic coating and a preparation process thereof, and relates to the technical field of fiber cement board coating. The ceramic coating comprises a first solution and a second solution, the first solution is prepared from whisker silicon, modified organic silicon resin, silver dispersion liquid, an aluminum oxide aqueous dispersion liquid, inorganic pigment, deionized water, a defoaming agent and a dispersing agent, the second solution comprises methyltrimethoxysilane, a leveling agent, a wetting agent and formicacid, and the weight parts of the components are as follows: 10-15 parts of the whisker silicon, 5-7 parts of the modified organic silicon resin, 0.4-0.6 parts of the silver dispersion liquid, 6-10 part of the aluminum oxide aqueous dispersion liquid, 18-22 parts of the inorganic pigment, 25-30 parts of the deionized water, 1 part of the defoaming agent, 1 part of the dispersing agent, 20-25 parts of the methyltrimethoxysilane, 1-1.5 parts of the leveling agent, 1-1.5 parts of the wetting agent and 1-1.5 parts of the formic acid. The water-based ceramic coating is high in hardness, self-cleaning property, antibacterial property and weather resistance and high in fireproof grade.

Description

technical field [0001] The invention relates to the technical field of fiber cement board coating, in particular to an easy-to-clean high-hardness antibacterial water-based ceramic coating and a preparation process. Background technique [0002] The surface coating process of traditional clean boards, purification boards and other fiber cement board products generally adopts solvent-based UV coating roller coating. The film-forming substances of UV coatings are mainly divided into: UV unsaturated polyester, UV epoxy acrylate, UV Epoxy resin, UV urethane acrylate and other organic resins; the advantage of this kind of product is that it is cured by ultraviolet light, and the production efficiency is high, but the defects are more prominent. Because this kind of coating needs to meet the requirements of light curing and rapid prototyping, there are large Most of them are photosensitive resins, which lead to poor light resistance and water resistance of such coatings. The film-...

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Problems solved by technology

[0002] The surface coating process of traditional clean boards, purification boards and other fiber cement board products generally adopts solvent-based UV coating roller coating. The film-forming substances of UV coatings are mainly divided into: UV unsaturated polyester, UV epoxy acrylate, UV Epoxy resin, UV urethane acrylate and other organic resins; the advantage of this kind of product is that it is cured by ultraviolet light, and the production efficiency is high, but the defect is more prominent. Because this kind of coating needs to meet the requirements of light curing and rapid prototyping, there are a large number of film-forming materials. Most of them are photosensitive resins, which lead to poor light resistance and water resistance of such coatings. The film-forming material contains acrylic resin, which makes this type of coatings have a low fire rating and is flammable when exposed to open flames. It is not suitable for large indoor airtight public places. Large-scale decoration, and the film-forming substances in such coatings are fatty oligomers, resulting in generally low hardness and poor adhesion of such coatings

In addition, clean boards and purification boards are generally used in precision instrument manufacturing, scientific research and other clean engineering fields that require harsh indoor environments. The surfaces of clean boards and purification boards need to be kept clean and dust-proof, and sometimes it is necessary to ensure a sterile state. Clean boards and purification boards using UV coatings are not weather-resistant, and the surface smoothness is poor, requiring regular cleaning and disinfection operations. In summary, the use environment and field of use of fiber cement board products are greatly limited. Therefore, there is room for improvement. place

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