Inorganic zinc-rich anticorrosive paint

Abstract

The invention discloses an inorganic zinc-rich anticorrosive paint. The zinc-rich paint is an anticorrosive powder paint which is high in content of zinc powder, thin in film and excellent in performance and is an excellent environment-friendly paint. The paint disclosed by the invention is mainly prepared from the following raw materials in parts by weight: 18-25 parts of solid sodium water glass, 10-15 parts of superfine slag powder, 15-25 parts of metakaolin, 2-5 parts of nano titanium dioxide, 1-5 parts of nano zinc oxide, 1-5 parts of nanosilicon dioxide, 0.5-1 part of a dispersant, 1.1-2.0 parts of a defoamer and 30-40 parts of zinc powder. By using an alkali-based geopolymer as a main film forming matter and the zinc powder as a sacrificial anode, the paint prepared by the invention is a dried paint which is packaged in dry powder. During use of the paint, water is just added in proportion to uniformly stir. The paint disclosed by the invention is abundant in source of raw materials, green and environment-friendly and advanced and pollution-free in preparation process. The prepared paint has the advantages of good water resistance and corrosion resistance, zero VOCs, zero hazardous air pollutants (HAPs), high solid content, low requirement on bottom treatment of metals, simple and convenient construction and the like.

Description

technical field [0001] The invention relates to an inorganic zinc-rich anti-corrosion paint, in particular to an alkali-based polymer-based inorganic zinc-rich anti-corrosion paint, which belongs to the technical field of new materials. Background technique [0002] With the vigorous development of my country's industry, the use of industrial coatings is increasing. As of 2013, there are as many as 10,000 enterprises in China's coatings industry, with an annual output of more than 13 million tons, of which more than 55% are industrial coatings, but most of them belong to Traditional low value-added products with high environmental hazards. Traditional industrial coatings contain a high amount of volatile and toxic gases, which not only seriously affects the natural environment of our country, but also poses a serious threat to the physical and mental health of construction workers. Coatings that are green, environmentally friendly, and rich in raw materials have become the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide an inorganic zinc-rich anti-corrosion coating, which has high solid content, good water resistance, excellent anti-corrosion performance, zero VOCs, zero harmful air pollutants (HAPs), low cost, and is resistant to metal substrates. The advantages of water-based inorganic zinc-rich industrial anti-corrosion coatings with low processing requirements and simple construction can overcome the problems of high cost, poor water resistance, high substrate surface treatment requirements, and unstable acid and alkali resistance existing in similar materials.