Paint remover for metal surface epoxy resin

Abstract

The invention relates to a paint remover for metal surface epoxy resin. The paint remover consists of 50-70 parts by weight of N, N-dimethylformamide, 1-5 parts by weight of anionic surfactants, 1-5 parts by weight of nonionic surfactants, 3-10 parts by weight of organic base, 20-30 parts by weight of ethanol, 5-7 parts by weight of solvent oil, 4-12 parts by weight of diphenylamine derivatives and 3-9 parts by weight of water. The diphenylamine derivatives are selected, so that the adhesive force between epoxy resin and metal can be greatly reduced, and rapid paint removal can be realized onthe metal surface.

Description

technical field [0001] The invention relates to a paint remover for metal surface epoxy resin paint. Background technique [0002] Organic paint remover is a liquid mixed with chlorinated hydrocarbons, benzene series, esters, alcohols, ethers and other solvents. Invented organic paint remover has become the mainstream paint remover in the market because of its advantages of convenient use, high paint removal efficiency, good stability and low metal corrosion. For example, in the patent "paint remover for polyester and polyesterimide enamelled copper round wire paint film", the formula of paint remover is announced, and its components are: 30-50% formic acid, 30% ~40% trichloromethane, 5~35% mixed cresols, invention 0~5% additive composition. In the patent of "a powerful paint remover", it is announced that the mass fraction is 0-5% surfactant, 72-78% dichloromethane, 0-3% ethyl acetate, 0.78-0.8% thickener , Invention 0.6-0.7% paraffin, 4.85-10% phenol, 5-9% ethanol, 0-6%...

AI Technical Summary

Problems solved by technology

Although this type of paint remover is thorough and has a wide range of applications, it is not ideal for the treatment of epoxy resin paint on metal surfaces.