High-hardness fireproof hydrophobic stone-like ceramic coating as well as preparation process and application thereof

Abstract

The invention discloses a high-hardness fireproof hydrophobic stone-like ceramic coating as well as a preparation process and application thereof, and relates to the technical field of decorative plate coating. The high-hardness fireproof hydrophobic stone-like ceramic coating comprises a first solution, a second solution and a third solution. The first solution comprises a silicon oxide aqueous dispersion, calcined kaolin, an inorganic pigment, deionized water, a defoaming agent and a dispersing agent. The second solution comprises methyltrimethoxysilane, methyltriethoxysilane, a leveling agent and formic acid. The third solution comprises protective rubber powder and deionized water. The coating is prepared from the following components in parts by weight: 20-30 parts of silicon oxide aqueous dispersion, 5-10 parts of calcined kaolin, 10-15 parts of inorganic pigment, 25-30 parts of deionized water, 0.5-1 part of a defoaming agent, 0.5-1 part of a dispersing agent, 20-25 parts of methyltrimethoxysilane, 5-8 parts of methyltriethoxysilane, 0.8-1.5 parts of a leveling agent, 0.5-1.5 parts of formic acid, 3-5 parts of protective rubber powder and 20-30 parts of deionized water. Thestone-like ceramic coating disclosed by the invention is relatively good in hardness and relatively good in fireproof performance, water resistance and weather resistance.

Description

technical field [0001] The invention relates to the technical field of decorative plate coating, in particular to a high-hardness fire-proof hydrophobic stone-imitation ceramic coating, a preparation process and application. Background technique [0002] In the field of architectural decoration, such as the exterior aluminum curtain wall coating of buildings, the interior and exterior facade decoration of buildings, and the interior wall decoration of tunnels, in order to ensure the overall aesthetic feeling, stone-like coatings are generally used as coating layers to cure on the surfaces of curtain walls and walls. The traditional imitation stone paint uses acrylic emulsion as the film-forming substance. Since the acrylic resin is an aliphatic oligomer, the defects of the traditional stone imitation paint are as follows: [0003] 1. The hardness of the traditional acrylic emulsion imitation stone coating is less than 1H, and the hardness level is low. The coating can be pee...

AI Technical Summary

Problems solved by technology

[0003] 1. The hardness of the traditional acrylic emulsion imitation stone coating is less than 1H, and the hardness level is low. The coating can be peeled off with a little external force. After the wall decoration is completed, the coating on the parts that are often in contact with people in daily use is easy to be scratched , it is difficult to achieve the hard and bump-resistant performance of natural stone, and after the wall surface is worn, the surface is rough, easy to adhere to impurities, and difficult to clean;

[0004] 2. The traditional acrylic emulsion imitation stone coating, because it contains acrylic resin, makes this kind of coating have a low fire rating. It is easy to burn, carbonize, and release smoke when exposed to high temperature or open flame. Very suitable for large-scale decoration in indoor closed public places;

[0005] 3. The weather resistance, light resistance and water resistance of traditional acrylic emulsion imitation stone coatings are poor

[0006] In summary, the scope of use of imitation stone coatings is greatly limited, therefore, there is room for improvement

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