Heatproof corrosion-resistant waterborne polyurethane paint

Abstract

The invention discloses a heatproof corrosion-resistant waterborne polyurethane paint. The paint comprises the following raw materials by weight: 100 to 120 parts of waterborne polyurethane resin, 22 to 25 parts of bisphenol F type epoxy resin, 20 to 40 parts of novolac epoxy resin, 2 to 4 parts of bentonite, 1 to 3 parts of fumed silica, 12 to 15 parts of mica powder, 17 to 20 parts of calcined kaolin, 8 to 12 parts of heavy calcium carbonate, 22 to 25 parts of expanded perlite, 1 to 2 parts of magnesium oxide, 1 to 3 parts of aluminum triphosphate, 5 to 10 parts of zinc borate, 15 to 20 parts of magnesium hydroxide, 3 to 5 parts of a leveling agent, 5 to 8 parts of a dispersant, 2.5 to 4 parts of an antiseptic, 1 to 2 parts of an antifoaming agent, 1 to 2 parts of a wetting agent and 30 to 50 parts of water. The waterborne polyurethane paint has excellent heat resistance and corrosion resistance, good resistance to wear and water, superior flame resistance, strong adhesion and good curing performance.

Description

technical field [0001] The invention relates to the technical field of water-based polyurethane coatings, in particular to a heat-resistant and corrosion-resistant water-based polyurethane coating. Background technique [0002] With the current rapid economic development, the heating and corrosion of outdoor metal materials have attracted more and more attention. Due to the long-term harsh working environment, especially in some working environments in areas exposed to the sun for a long time, the heat-resistant and anti-corrosion of metal materials Measures are inevitable. The general practice is to paint the surface of metal materials, but the tolerable temperature of conventional high-temperature and corrosion-resistant coatings is relatively low, and some are only about 220°C. [0003] Water-based polyurethane uses water as the dispersion medium, which has the advantages of being environmentally friendly, non-toxic, and difficult to burn, and can adjust the comprehensive...

AI Technical Summary

Problems solved by technology

[0002] With the current rapid economic development, the heating and corrosion of outdoor metal materials have attracted more and more attention. Due to the long-term harsh working environment, especially in some working environments in areas exposed to the sun for a long time, the heat-resistant and anti-corrosion of metal materials Measures are inevitable. The general practice is to paint the surface of the metal material, but the tolerable temperature of conventional high-temperature and corrosion-resistant coatings is relatively low, and some are only about 220°C