High-hardness water-based environment-friendly anti-corrosion coating

Abstract

The invention provides a high-hardness water-based environment-friendly anti-corrosion coating. The coating is prepared from, by weight, 10-40 parts of rutile type titanium dioxide pigment, 5-20 partsof wollastonite in powder, 5-10 parts of modified polyacrylate, 2-5 parts of non-ionic and / or negative ion type wetting agent, 10-15 parts of a mixing solution of meperfluthrin and sodium dodecyl sulfate, 10-20 parts of anti-corrosion mold-proof bactericide and 5-10 parts of nano-silica hardening agent, wherein the preparation method of the modified polyacrylate comprises the following steps of adopting polyacrylate emulsion as a base body, and performing block copolymerization on the base body and a solution of mixed monomers including bipolymer pyrrole, a cross-linking monomer and a polyacrylate monomer to obtain a final modified polyacrylate emulsion, wherein the consumption of bipolymer pyrrole accounts for 25-40% the weight of the mixed monomers, and the consumption of the cross-linking monomer is 10-20% the weight of the mixed monomers. The high-hardness water-based environment-friendly anti-corrosion coating is excellent in water resistance, weather resistance, antibacterial activity, mold-proof performance and antifouling performance.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a high-hardness water-based environmental protection anti-corrosion coating. Background technique [0002] In the prior art, the volume shrinkage of cement during the hydration process and the imbalance of the surface mortar ratio, the difference in expansion coefficient between different building materials, the long-term erosion of the building by rain, carbon dioxide, sulfur dioxide gas and temperature difference during use Thermal expansion and contraction often lead to cracks in the walls of buildings. [0003] The most effective way to solve this disadvantage is to use elastic paint to paint the exterior wall, which can maintain good elasticity in a wide temperature range and can cover fine cracks on the wall surface. In the application of paint, long-term exposure to wind and sun will put a great test on the stability, water resistance and weather resistance of the paint....

AI Technical Summary

Problems solved by technology

In the application of paint, long-term exposure to wind and sun will put a great test on the stability, water resistance and weather resistance of the paint. If the water resistance of the paint is poor, it is easy to cause foaming in the paint and rainwater to penetrate the wall body, causing the inner wall to become black and moldy, and the latex on the inner wall to foam, peel and peel