Rust removal and rust prevention liquid and preparation method thereof

Abstract

The invention provides a rust removal and rust prevention liquid. The liquid comprises the raw materials of, by weight, 5-9 parts of long-oil alkyd resin, 2-6 parts of citric acid, 2-8 parts of laurylsodium sulfate, 2-4 parts of tartaric acid, 1-2 parts of ethylene diamine tetraacetic acid disodium, 2-6 parts of polyaspartic acid, 0.4 -1.2 part of oxidized starch, 5-10 parts of trimethyl cetyl ammonium bromide, 10-15 parts of fatty alcohol-polyoxyethylene ether sodium sulfate, 1-2 parts of turkey red oil, 1-3 parts of carboxymethyl cellulose, 2-8 parts of mesoporous silica, 10-20 parts of ethylene glycol, 15-20 parts of propylene glycol butyl ether and 60-90 parts of water. The invention further provides a preparation method of the rust removal and rust prevention liquid. The provided rust removal and rust prevention liquid has multiple functions such as rust removal, decontamination, phosphatization and passivation; and reaction can be carried out at normal temperature, the rust removal time is short, the rust prevention time is long, and the liquid does not corrode the metal.

Description

technical field [0001] The invention belongs to the technical field of metal surface treatment, and in particular relates to a rust-removing and anti-rust liquid and a preparation method thereof. Background technique [0002] Rust prevention on metal surfaces is an important subject in industrial production. Traditional antirust liquids and antirust oils have both advantages and disadvantages. Ordinary anti-rust liquid contains a large amount of sodium nitrite, which is carcinogenic and is not conducive to environmental protection and human health. However, the use of humectants to prolong the life of anti-rust liquid brings the disadvantages of sticking hands and dust, and cannot prevent rust for a long time . Although the general dura-film anti-rust oil is suitable for long-term anti-rust, and the film is transparent and beautiful, there are few types of colorless and transparent resins, which are unstable and easy to oxidize and change color. They also need organic solve...

AI Technical Summary

Problems solved by technology

Ordinary anti-rust liquid contains a large amount of sodium nitrite, which is carcinogenic and is not conducive to environmental protection and human health. However, the use of humectants to prolong the life of anti-rust liquid brings the disadvantages of sticking hands and dust, and cannot prevent rust for a long time

Although the general dura-film anti-rust oil is suitable for long-term anti-rust, and the film is transparent and beautiful, there are few types of colorless and transparent resins, which are unstable and easy to oxidize and change color. They also need organic solvents to dissolve, which brings the danger of flammability and explosion. Not conducive to environmental protection and health

The general anti-rust oil uses mineral oil, which is difficult to degrade, and it will also cause the problem of difficult degreasing when used for short-term anti-rust