Waterborne anti-doodling and self-cleaning coating and preparation method thereof

Abstract

The invention belongs to the technical field of coating and in particular relates to waterborne anti-doodling and self-cleaning coating and a preparation method thereof. The coating is prepared from the following components: 35 to 70 percent of waterborne inorganic nano-ceramic modified emulsion, 1 to 20 percent of a pigment, 1 to 30 percent of filling, 0.1 to 0.5 percent of a wetting dispersant,0.1 to 0.5 percent of a de-foaming agent, 1 to 5 percent of a rheological agent and the balance of water, wherein the waterborne inorganic nano-ceramic modified emulsion is prepared from 10 to 70 percent of hydroxyl acrylic emulsion, 20 to 70 percent of silica sol, 10 to 70 percent of silane, 0.1 to 10 percent of an organic silicon modifying agent and the balance of water. According to the waterborne anti-doodling and self-cleaning coating, a sol-gel technology is adopted, and inorganic nano modification and organic silicon modification are carried out at the same time, so that the rigidity and wear resistance of the coating can be remarkably improved; a final coating product has good weather resistance and hydrophobic property and is obviously better than that of traditional self-cleaningcoating.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based anti-graffiti self-cleaning coating and a preparation method thereof. Background technique [0002] The aluminum curtain wall is made of high-strength aluminum alloy sheet, which is fixed on the outer surface of the building through reinforcing ribs and corners, so that it forms a solid whole with the outer wall of the building and can protect the outer wall of the building from the wind. Exposure to the sun can prolong the service life of the building, beautify the exterior wall, improve the flatness of the exterior wall, resist wind and earthquake, etc. Usually, the aluminum curtain wall is treated with chrome treatment and fluorocarbon spraying treatment. It has excellent corrosion resistance and weather resistance, can resist acid rain, salt spray and various pollutants, and can withstand ultraviolet radiation for a long time without fading, and has a long serv...

AI Technical Summary

Problems solved by technology

[0007] The problem to be solved by the present invention is that existing self-cleaning coatings often have poor weather resistance and self-cleaning ability, and technical problems such as complicated manufacturing process

Images