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

Abstract

The invention discloses a metal antirust paint treating modified attapulgite as a filler, and its preparation method. The metal antirust paint comprises the following raw materials, by weight, 22-27 parts of a water-soluble phenolic resin, 15-20 parts of a polyurethane-polyacrylate composite emulsion, 18-22 parts of the modified attapulgite, 7-9 parts of a silicone-acrylic emulsion, 1.0-1.5 parts of triethanolamine, 18-22 parts of polycaprolactone, 0.7-0.9 parts of Span-60, 0.1-0.3 parts of polybutylene terephthalate, 0.7-0.9 parts of poly-4-methyl-1-pentene, 0.4-0.6 parts of 2,6-di-t-butyl-alpha-dimethylamino-p-phenol, 1.5-2.5 parts of a modified acrylic emulsion, 0.5-0.8 parts of chitosan, 0.2-0.4 parts of ethylene bis-stearamide, 0.8-1.2 parts of tris(methoxyethoxy)vinylsilane and 1.3-1.8 parts of a polyvinyl acetate emulsion. 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 attapulgite 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 invention relates to a metal antirust paint with modified attapulgite as filler and a preparation method thereof, belonging to the technical field of antirust materials. Background technique [0002] In recent years, epoxy zinc-rich paint is the most used industrial anti-rust 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; the viscosity of the paint will also increase when the anti-settling agent is added. 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 , to add a large amount of solvent to the paint, the solvent seriously endangers the health of workers during construction, the solvent volatilizes into the air during the dry...

AI Technical Summary

Problems solved by technology

[0002] In recent years, epoxy zinc-rich paint is the most used industrial anti-rust 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; the viscosity of the paint will also increase when the anti-settling agent is added. 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 , to add a large amount of solvent to the paint, the solvent seriously endangers the health of workers during construction, the solvent volatilizes into the air during the drying process and pollutes the environment, and the use of solvent increases the construction cost; the brittleness of the paint film after the small molecular weight resin is cured Large, 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