PU (polyurethane) resin paint

Abstract

The invention relates to PU (polyurethane) resin paint which comprises components as follows: 50 parts of a waterborne PU emulsion, 15 parts of diisocyanate, 10 parts of polyether polyol, 12 parts of calcium carbonate, 4 parts of dibutyltin dilaurate, 5 parts of triethylamine, 8 parts of kaolin, 5 parts of xylene, 2 parts of diacetone alcohol, 4 parts of aluminum triphosphate, 5 parts of polycarbonate diol, 2 parts of polyether polyol and 2 parts of diisocyanate. A paint film of the PU resin paint has excellent mechanical performance and water resistance, the paint is free of NCO residues, non-toxic and environment-friendly, construction can be performed on wet foundational planes, and a single-component waterborne polyaniline anticorrosive paint system has the good anticorrosive effect.

Description

technical field [0001] The invention relates to a decorative material, in particular to a polyurethane resin coating. Background technique [0002] Water-based wood coatings mainly include two systems: water-based acrylate and polyurethane. Waterborne acrylic wood coatings have excellent light resistance, outdoor exposure durability, good acid, alkali and salt corrosion resistance, excellent flexibility and lowest pigment reactivity, and their cost is low, but their paint film is wear-resistant and The defects of poor chemical resistance, low hardness and poor fullness. Most of the coatings in machinery, light industry, chemical industry, metallurgy and other industries use acrylic coatings, but the adhesion and flexibility of acrylic coatings are poor, while the polyurethane coatings in my country are mainly two-component alkyd polyurethane coatings, which have good adhesion And wear resistance, but its hardness and high temperature resistance are worse than acrylic co...

AI Technical Summary

Problems solved by technology

Waterborne acrylic wood coatings have excellent light resistance, outdoor exposure durability, good acid, alkali and salt corrosion resistance, excellent flexibility and lowest pigment reactivity, and their cost is low, but their paint film is wear-resistant and Defects of poor chemical resistance, low hardness and poor fullness

Most of the coatings in machinery, light industry, chemical industry, metallurgy and other industries use acrylic coatings, but the adhesion and flexibility of acrylic coatings are poor, while the polyurethane coatings in my country are mainly two-component alkyd polyurethane coatings, which have good adhesion and abrasion resistance, but its hardness and high temperature resistance are worse than acrylic coatings