Waterproof polyurethane building paint

Abstract

The invention discloses waterproof polyurethane building paint, which is prepared from the following ingredients through being mixed in parts by weight: an ingredient A (60 to 80 parts of waterborne cyanoacrylate resin, 2 to 6 parts of dodecanol benzoate, 2 to 5 parts of nanometer silicon dioxide, 15 to 40 parts of color pulp, 2 to 5 parts of silicon carbide whisker, 0.2 to 0.4 part of organic silicon defoaming agents, 0.2 to 0.4 part of wet flatting agents, 0.2 to 0.4 part of 2-hydroxyl-4-methoxybenzophenone and 0.2 to 0.4 part of thickening agents) and an ingredient B (40 to 60 parts of water-dispersible isocyanate). The waterborne cyanoacrylate resin and water-dispersible isocyanate are used as major raw materials; water is used as a dispersion medium; the discharging of the organic solvents or organic contaminants can be reduced to the maximum degree; the nanometer silicon dioxide is properly added, so that the dispersion mass distribution in the paint is more uniform; after the spray coating, the glossiness is higher.

Description

technical field [0001] The invention relates to the field of architectural coatings, in particular to a waterproof polyurethane architectural coating. Background technique [0002] At present, solvent-based two-component polyurethane coatings are mainstream products, and a large amount of organic solvents volatilize during its production and construction, causing serious harm to the environment and human health. In recent years, the research and development of waterborne two-component polyurethane coating technology has become a hot spot. It uses water as the dispersion medium, which minimizes the discharge of organic solvents and organic pollutants, saves energy, has the advantages of non-combustibility, low odor, and convenient operation and processing. At the same time, it has solvent-based two-component polyurethane Therefore, the development of waterborne two-component polyurethane coatings has broad application prospects. Contents of the invention [0003] The obje...

AI Technical Summary

Problems solved by technology

[0002] At present, solvent-based two-component polyurethane coatings are mainstream products, and a large amount of organic solvents volatilize during its production and construction, causing serious harm to the environment and human health.