Component-type colored water-based polyurethane copolymer paint for metal

Abstract

The invention relates to component-type colored water-based polyurethane copolymer paint for metal and belongs to the technical field of polyurethane paint and synthetic resin paint. The paint comprises priming paint and finishing paint and is characterized in that the priming paint as well as the finishing paint is prepared by mixing a component A, a component B and component C according to the weight ratio of 3.7:5.8:0.5, wherein the component A and the component C of the priming paint are the same as those of the finishing paint; the component A is a home-made internally-emulsified polyurethane tripolymer; and the components B comprise home-made internally-emulsified epoxy resin and are prepared from polyurethane, epoxy resin and other raw materials in percentage by weight respectively by corresponding production technologies. The paint has the advantages of beautiful color and luster, simple technologies, flexibility and convenience in preparation, high adhesive force, high hardness, long service life, acid / alkali / biochemical substance corrosion resistance and environment friendliness, and solves the problems in the prior art that the volatilization of organic solution steam can easily cause air environment pollution and the requirements for zero pollution, good color and luster and strong anti-corrosion performance are hard to meet.

Description

Technical field [0001] The invention relates to a component type polyurethane copolymer colored water-based paint for metal, belonging to the technical field of polyurethane synthetic resin paint. Background technique [0002] The internal and external coating paint of metal products such as automobiles, trains, ships, and iron towers can effectively prevent metal rust, chemical corrosion, and beautify the appearance. Traditional water-based paints generally use organic solvents to produce paints. A large amount of organic solvent vapor volatilizes into the air, which is one of the main causes of haze pollution. In addition, traditional water-based paints generally have no color, whether it is a primer or a topcoat, and cannot meet the market's multiple needs for pollution-free, beautiful color, and strong protection. Summary of the invention [0003] The purpose of the present invention is to provide a polymer network that can quickly form a cross-penetrating polymer network und...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of internal emulsification type polyurethane trimer, internal emulsification type epoxy resin and other raw materials mixed by weight percentage, under the action of a catalyst, a polymer network that can penetrate each other can be quickly formed, and the bottom layer The paint is flexible, wear-resistant and rust-proof, the surface paint has beautiful color, strong anti-corrosion acid and alkali resistance, long service life, strong adhesion, fast drying, environmental protection and non-polluting component type polyurethane copolymer for metal. Water-based paint; solves the problem that the volatilization of organic solution vapor into the air in the prior art can easily cause environmental pollution, and it is difficult to meet the market demand of no pollution, beautiful color and strong protection