Multi-effect anti-fouling coating and construction method thereof

Abstract

The invention discloses multi-effect anti-fouling coating. The multi-effect anti-fouling coating is prepared from a component A and a component B; the component A is prepared from the following components in parts by weight: 40-45 parts of fluorine-silicon modified polyester resin, 0.5-2 parts of an anti-static agent, 0.5-2 parts of a hydrophobic restorer, 0.5-2 parts of an anti-mold and anti-algae agent, 0.5-2 parts of a leveling agent, 0.5-2 parts of a wetting dispersant and 2-5 parts of a defoaming agent; the component B is prepared from 30-50 parts of a polyisocyanate pre-polymer; the massratio of the component A to the component B is (4 to 10):1; and the fluorine-silicon modified polyester resin contains hydroxyls. Through the synergistic effect of the fluorine-silicon modified polyester resin, the polyisocyanate pre-polymer and the multiple functional additives, the multi-effect anti-fouling coating has the functions of corrosion prevention, fouling prevention, self-cleaning, scrawling prevention and pasting prevention, and has excellent overall performance. The invention further discloses a construction method of the multi-effect anti-fouling coating.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a multi-effect antifouling coating and a construction method thereof. Background technique [0002] Small street advertisements and graffiti have become an incurable disease that the government and citizens hate, especially in public places or tourist attractions with a large number of people. It also consumes a lot of human and financial resources. [0003] Multi-effect antifouling coatings with anti-fouling self-cleaning, anti-graffiti and anti-sticking properties have been applied in municipal engineering and achieved good results. Existing antifouling coatings such as anti-fouling self-cleaning, anti-graffiti, and anti-sticking are mostly low surface energy materials. From the perspective of coating matrix resin, low surface energy antifouling coatings can be mainly divided into: silicone, Organic fluorine and fluorine silicon. Silicone usually refers to polys...

AI Technical Summary

Problems solved by technology

Although the current low surface energy antifouling coatings have good antifouling effects, most of the existing low surface energy antifouling coatings can only target a certain kind or a certain type of pollution, and cannot be antifouling at the same time. "Four prevention" functions of self-cleaning, anti-graffiti, anti-sticking and anti-corrosion

In addition, the existing low surface energy antifouling coatings have good initial graffiti imitation and anti-sticking properties, but after high-temperature treatment, repeated pasting or several times of graffiti cleaning, their functions are greatly lost, which is manifested in the loss of gloss of the coating, The surface adhesion is increased, the graffiti is not easy to be removed, the coating film falls off, the weather resistance is poor, and the actual outdoor service life is very short

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