Metal antirust paint treating modified diatomite as filler, and its preparation method

Abstract

The invention discloses a metal antirust paint treating modified diatomite as a filler, and its preparation method. The metal antirust paint comprises the following raw materials, by weight, 28-32 parts of a water-soluble phenolic resin, 22-25 parts of water-soluble polyester, 14-16 parts of the modified diatomite, 4-6 parts of a pure acrylic emulsion, 1.2-1.5 parts of octylamine, 14-16 parts of polycaprolactone, 0.4-0.6 parts of glycerol monostearate, 0.7-0.9 parts of polybutylene terephthalate, 0.6-0.8 parts of poly-4-methyl-1-pentene, 0.5-0.7 parts of zinc dialkyl dithiophosphate, 1-2 parts of 2,6-di-t-butyl-p-cresol, 3.5-5.5 parts of a modified acrylic emulsion, 0.8-1.5 parts of chitosan, 0.9-1.1 parts of vinylsilane, and 1.2-1.5 parts of polyoxyethylene ether type acrylate. The film of the metal antirust paint has the advantages of good adhesion, fast drying, good heat resistance, environmental protection and no pollution, and the modified diatomite and the modified acrylic emulsion added to the raw materials improve the excellent performances of high-polymer materials in the raw materials and simultaneously increase the corrosion resistance and the heat resistance of the metal antirust paint; and the preparation method has the advantages of simplicity, low cost and suitableness for large-scale production.

Description

Technical field [0001] The present invention involves a metal rust -proof paint and preparation method with the diatom soil as the filler, which is a technology field in rust -proof materials. Background technique [0002] In recent years, the use of industrial rust paint to protect the metal with the most epoxy zinc -rich paint. Because the density of metal zinc powder is relatively large, in order to prevent zinc powder from falling or slowing the speed of zinc powder, you need to add it to the paint to the paint.A certain amount of anti -sinking agent; the viscosity of the lacquer of the sinking agent also increases. When choosing a polyamide resin, you must choose the resin (E44) as much as possible;To add a large amount of solvents to the lacquer, the solvents seriously harm the health of the workers during the construction, the solvent volatilizes the solvent to the air during the drying process, and the solvent will increase the construction cost;Large, metal thermal expan...

AI Technical Summary

Problems solved by technology

[0002] In recent years, epoxy zinc-rich paint is the most commonly used industrial anti-rust paint to protect metal. Due to the relatively high density of metal zinc powder, in order not to To settle or slow down the settling speed of 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 when the anti-settling agent is added. When selecting polyamide resin, it is necessary to choose as small a Molecular weight resin (E44); in order to meet the brushability during construction, a large amount of solvent should be added to the paint. During construction, the solvent seriously endangers the health of workers, and the solvent volatilizes into the air during the drying process to pollute the environment. The construction cost is increased; the brittleness of the paint film after the curing of the small molecular weight resin is large, and the thermal expansion and contraction of the metal is large, and the paint film is easy to crack or fall off when the temperature changes