A kind of water-based derusting antirust liquid and preparation method thereof

Abstract

The invention relates to a water-based rust-proof derusting liquid, which is prepared from following raw materials in parts by weight: 1-2 parts of octyl phenol polyoxyethylene ether, 2-3 parts of oleic acid polyoxyethylene ester, 20-23 parts of ethyl alcohol, 1-2 parts of citric acid, 2-3 parts of zinc phosphate, 1.3-2.4 parts of sodium lauryl sulfate, 1.2-2.3 parts of 2,6-di-tert-butyl-alpha-dimethylamino phenol, 1-2 parts of isopropanol, 10-12 parts of ethoxylated trimethylolpropane triacrylate, 1-2 parts of EDTA disodium, 4-5 parts of additive, and 300 parts of water. The rust-proof derusting liquid has multiple functions like rust removal, decontamination, phosphorization, passivation, surface conditioning and the like, can form a thin film on the surface of a metal due to the combined action of an organic high-molecular polymer monomer and a chelating agent, so as to play roles in isolating air and preventing oxidization; the preparation method for the rust-proof derusting liquid is simple; the rust-proof derusting liquid is easy to clear, has low cost, reacts at room temperature, can remove the rust in short time, has long rust protection time, does not corrode the metal, contains no toxic or harmful substances, and does not pollute the environment.

Description

technical field [0001] The invention relates to the technical field of rust prevention, in particular to a water-based rust removal and antirust 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 water 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 water 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 dissolv...

AI Technical Summary

Problems solved by technology

Ordinary anti-rust water 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 water 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. It is 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