A kind of water-based anti-graffiti paint

Abstract

The invention relates to a water-based anti-doodling paint which is a double-component paint composed of a component A and a component B. The component A comprises the following components in percentage by weight: 15-35 wt% of water-based hydroxy polyacrylate dispersion, 15-35 wt% of organosiloxane-modified water-based hydroxy polyacrylic resin, 5-15 wt% of ultraviolet-resistant filler, 0.1-0.6 wt% of defoaming agent, 0.5-1.5 wt% of leveling agent, 0.5-2 wt% of anti-aging agent, 0.5-1 wt% of wetting and dispersing agent and the balance of water, totaling 100 wt%. The component B comprises the following components in percentage by weight: 60-80 wt% of hydrophilic modified aliphatic polyisocyanate curing agent and the balance of solvent, totaling 100 wt%. The ultraviolet-resistant filler is selected from nano rutile titanium white. The water-based anti-doodling paint provided by the invention has the advantages of favorable water resistance, excellent aging resistance, high medium and pollution resistance and obvious self-cleaning action.

Description

technical field [0001] The invention belongs to the technical field of environmental protection coatings and relates to a water-based anti-graffiti coating. Background technique [0002] Small street advertisements have become an incurable disease hated by the government and citizens, especially in public places or tourist attractions with a large number of people. It not only seriously affects the image of a city, but also brings great troubles to advertising management. [0003] Water-based anti-graffiti coating is a coating with special surface functions. The surface has low surface tension. The lotus leaf-shaped surface has a self-cleaning effect, and the dirt will roll off naturally, and the self-adhesive paper will easily fall off after being pasted. Most of the existing water-based anti-graffiti coatings are solvent-based water-based anti-graffiti coatings, which have the following problems: [0004] (1) Use a large amount of solvents, high VOC, pollute the air, and ...

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