Self-cleaning flame-retardant exterior wall coating and preparation method thereof

Abstract

The invention discloses a self-cleaning flame-retardant exterior wall coating. The self-cleaning flame-retardant exterior wall coating is characterized by being prepared from the following raw materials in parts by weight: 36-42 parts of an acrylic resin emulsion, 30-35 parts of a vinyl epoxy resin emulsion, 3-4 parts of aluminum silver powder, 2-3 parts of polyisobutylene, 3-4 parts of rutile-type nanometer titanium dioxide powder, 2-4 parts of propylene glycol monomethyl ether, 0.3-0.5 part of sodium polycarboxylate, 2-3 parts of silica sol, 0.3-0.6 part of triethanolamine oleate, 2-3 parts of titanium phosphate, 2-3 parts of tin antimony phosphate, 1-2 parts of lithopone, 1-2 parts of kaolin, 0.4-0.8 part of an acrylic alkali-swellable thickener, 1-2 parts of tris(2-chloropropyl) phosphate, 1-2 parts of aminoethyl aminopropyl triethoxysilane, 6-9 parts of a self-cleaning slurry and 14-20 parts of deionized water. The exterior wall coating has the characteristics of high adhesion, good adhesive force, good weather resistance and high aging resistance and chalking resistance; due to addition of the silica sol, the hardness and abrasion resistance of the coating film are enhanced; the added aluminum silver powder has a bactericidal effect, the added self-cleaning slurry has an excellent self-cleaning effect; tin antimony phosphate has self-cleaning enhancing effect and thus the staining property of the exterior wall is reduced and the cost of manual cleaning is reduced; and the added tris(2-chloropropyl) phosphate has a flame-retardant effect and reduces risk factors causing the fire disaster.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a self-cleaning flame-retardant exterior wall coating and a preparation method thereof. Background technique [0002] According to the statistics of China Chemical Industry Network, in the first two months of 2009, my country's paint production increased by 13.3%, and the annual output reached 5 million tons. Mainly due to insufficient research and development efforts. At present, the research and development of some functional coatings is relatively mature, including: wear-resistant coatings, fire-resistant coatings, waterproof coatings, weather-resistant coatings, decorative coatings, etc. However, with the complexity of the social environment, the demand for functional coatings is becoming more and more extensive, and some new needs are constantly emerging. Exterior wall coatings are rich in colors, flexible and diverse in finishes, can express rich and colorful ar...

AI Technical Summary

Problems solved by technology

However, the lack of stain resistance of exterior wall coatings is an outstanding technical problem that restricts the promotion and application of exterior wall coatings in my country

The exterior wall coating is polluted, which greatly affects the aesthetics and durability of the building