Multi-component metal antirust painting and preparation method thereof

Abstract

The invention discloses a multi-component metal antirust painting and a preparation method thereof. The materials of the multi-component metal antirust painting, i.e. epoxy resin E20, bisphenol A type epoxy resin, nano calcium carbonate, silica flour, tetramethylsilane, straw ash, butyl acetate, glycol, chlorcosane, attapulgite and chlorinated olefin, are mixed according to certain parts by weight and are dispersed, and thereby the finished product is prepared. The multi-component metal antirust painting prepared by the method provided by the invention has the advantages of high adhesive force of the painting film, fast drying, high heat resistance, environment-friendliness and no pollution, and moreover, the preparation method is simple, is low in cost and is suitable for mass production.

Description

technical field [0001] The invention relates to a multi-component metal anticorrosion paint and a preparation method thereof, which is composed of polyamide resin with large molecular weight and butyl acetate, and is suitable for atmospheric industry anticorrosion in coastal areas. Background technique [0002] In recent years, epoxy zinc-rich paint is the most used industrial anti-corrosion paint to protect metal. Due to the relatively high density of metal zinc powder, in order to prevent the zinc powder from settling or slow down the settling speed of the zinc powder, it is necessary to add a certain amount of anti-settling agent to the paint; the viscosity of the paint will also increase with the addition of the anti-settling agent Therefore, when selecting polyamide resin, it is necessary to choose a resin with a small molecular weight (E44) as much as possible; in order to meet the brushability during construction, a large amount of solvent should be added to the pain...

AI Technical Summary

Problems solved by technology

Due to the relatively high density of metal zinc powder, in order to prevent the zinc powder from settling or slow down the settling speed of the zinc powder, it is necessary to add a certain amount of anti-settling agent to the paint; the viscosity of the paint will also increase with the addition of the anti-settling agent Therefore, when selecting polyamide resin, it is necessary to choose a resin with a small molecular weight (E44) as much as possible; in order to meet the brushability during construction, a large amount of solvent should be added to the paint, which will seriously endanger the health of workers and the paint. During the drying process, the solvent volatilizes into the air to pollute the environment and increase the construction cost; after the small molecular weight resin is cured, the brittleness of the paint film is large, and the thermal expansion and contraction of the metal is large. When the temperature changes, the paint film is easy to crack or fall off.