Water-based antirust paint and preparation method thereof

Abstract

The invention relates to water-based antirust paint and a preparation method thereof and belongs to the technical field of high polymer materials. The water-based antirust paint comprises the following raw materials in parts by weight: 10-20 parts of acrylic based emulsion, 20-30 parts of waterborne polyurethane resin, 5-10 parts of polyisocyanates, 2-10 parts of tetrabasic zinc chromate, 2-9 parts of alcohol soluble phenolic resin, 5-15 parts of mica iron oxide, 0.5-1.5 parts of defoaming agent, 0.5-1.0 part of antifoaming agent, 1.0-2.0 parts of dispersing agent, 1.0-2.0 parts of thickening agent, 21-29 parts of pigment, 30-50 parts of filler and 100-180 parts of water. The waterborne polyurethane resin and polyisocyanate curing agent are taken as raw materials, the water-based double-component polyurethane antirust paint is prepared, and the antirust paint has the advantages of low film-forming temperature, high gloss, high adhesive force and the like, is energy-saving, environment-friendly, safe and reliable and is widely applied to coating in the fields of automobiles and steel structures.

Description

technical field [0001] The invention relates to an antirust paint and a preparation method thereof. More specifically, the invention relates to a water-based antirust paint and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Steel has the properties of a metal with high strength and good ductility. However, metals such as steel are in an unstable state and are susceptible to corrosion. Corrosion causes huge economic losses. The annual corrosion loss in my country is as high as 500 billion yuan, accounting for 5.3% of the gross national product. Therefore, it is an important task of anti-corrosion work to protect metals such as iron and steel, make them play their role, retard corrosion, and prolong their service life. Traditional solvent-based antirust paint emits a large amount of VOC (volatile organic compounds) into the air during the process of manufacturing, construction, drying, curing, and film forma...

AI Technical Summary

Problems solved by technology

[0006] The present invention aims to solve the problems of poor bonding between the coating and the bottom layer of the above-mentioned water-based antirust paint and the poor adhesion of the paint film, and provides a water-based antirust paint. Good adhesion, paint film brittleness can also be improved