Water-based metal rustproof liquid and preparation method thereof

Abstract

The invention relates to a water-based metal rustproof liquid which is prepared from the following raw materials in parts by weight: 3-4 parts of oxalic acid, 1-2 parts of sodium citrate, 2-3 parts of tetradecyl trimethyl ammonium chloride, 1-2 parts of stannous mono-sulphate, 22-25 parts of E-51 epoxy resin, 5-7 parts of 2-amino-2-methyl-1-propanol, 9-10 parts of alkylphenol polyoxyethylene ether phosphate, 1-2 parts of lauryl sodium sulfate, 10-12 parts of 196 unsaturated polyester resin, 1-2 parts of disodium EDTA (Ethylene Diamine Tetraacetic Acid), 4-5 parts of an assistant and 300 parts of water. The formula provided by the invention contains high molecular resin and a chelating agent, so that a relatively stable thin film can be formed to isolate air. Meanwhile, a rust remover and a rustproof agent can be attached. The water-based metal rustproof liquid is good in rustproof and rust removal effects. The rust remover is mild and not easy to corrode the surface of metals, so that the water-based metal rustproof liquid is suitable for short-term and long-term rust prevention among steps, safe and environmental friendly and easy to clean.

Description

technical field [0001] The invention relates to the technical field of antirust, in particular to a water-based metal 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 dissolve, which brings ...

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