Super-wear-resistant self-cleaning coating and preparing method thereof

Abstract

The invention discloses a super-wear-resistant self-cleaning coating which comprises first elastic finish coat and second self-cleaning finish coat. The first elastic finish coat comprises, by mass, 10-60 parts of two-functionality-degree polyurethane acrylic resin A, 2-7 parts of an initiator A, 10-60 parts of an acrylate monomer A and 3-40 parts of an additive A. The second self-cleaning finishcoat comprises, by mass, 2-30 parts of acrylic acid-modified organic silicon resin with inorganic powder affinity, 0.3-3 parts of high-hardness powder particles, 2-20 parts of two-functionality-degreepolyurethane acrylic resin B, 10-40 parts of multi-functionality-degree polyurethane acrylic resin B, 15-45 parts of an acrylate monomer B, 2-7 parts of an initiator B, 3-40 parts of an additive B. The invention further discloses a preparing method of the super-wear-resistant self-cleaning coating. The super-wear-resistant self-cleaning coating has the performance of super wear resistance, scratching resistance and surface abrasion resistance and has the advantage of long-acting self-cleaning.

Description

technical field [0001] The invention relates to the technical field of building decoration materials, in particular to a super wear-resistant self-cleaning coating and a preparation method thereof. Background technique [0002] Floor materials (including plastic flooring, bamboo wood flooring, composite flooring, etc.) are susceptible to surface damage due to repeated scratches by external forces during use, such as reduced aesthetics, reduced moisture-proof and waterproof functions, reduced dirt resistance, and difficult to clean etc., resulting in a great waste of material energy and human resources. Therefore, it is of great significance to develop a coating with super wear resistance and long-term self-cleaning function. At present, the wear resistance of coatings on the market is mostly made by adding high-hardness inorganic materials (silicon powder, ceramic powder, alumina, etc.) to organic coatings, and using the high hardness of inorganic materials to achieve the p...

AI Technical Summary

Problems solved by technology

At present, the wear resistance of coatings on the market is mostly made by adding high-hardness inorganic materials (silicon powder, ceramic powder, alumina, etc.) to organic coatings, and using the high hardness of inorganic materials to achieve the purpose of wear resistance and surface scratch resistance. It is just a simple physical mixing, the combination of inorganic materials and organic coatings has limited fastness, and the hardness of ordinary inorganic materials used in coatings is limited (Mohs hardness is less than 9), which leads to wear resistance, scratch resistance and durability of coatings. limited resistance; the stain resistance of coatings on the market is mostly added with low surface energy substances (organic silicon resin, fluorocarbon resin, etc.), and the low surface energy substances are used to migrate to the surface of the coating to form a hydrophobic layer with low surface tension, so that pollution The substance is not easy to wet the surface to achieve the purpose of easy cleaning. This kind of coating does not have the durability of stain resistance. After repeated washing, the content of low surface energy substances gradually decreases until it completely loses the antifouling ability