Water-based normal-temperature rust-removal rust-proof liquid and preparation method thereof

The invention relates to a water-based normal-temperature rust-removal rust-proof liquid, which is prepared from the following active ingredients in parts by weight: 1-2 parts of zinc oxide, 2-3 parts of manganese dioxide, 2-3 parts of citric acid, 22-24 parts of E-12 epoxy resin, 6-8 parts of sodium hexametaphosphate, 1-2 parts of dimethyl formamide, 2-3 parts of catechol, 1-2 parts of sodium dodecyl benzene sulfonate, 13-15 parts of bisphenol A epoxy acrylate, 1-2 parts of disodium edetate dihydrate, 4-5 parts of auxiliaries and 300 parts of water. The rust-proof liquid can fast remove oil and rust at normal temperature, and can be corrosion-resistant and antibacterial, a thin film can be formed on a metal surface by using organic polymer resin and a chelating agent so as to isolate air and achieve the oxidization prevention effect, and the corrosion-inhibition and rust-proof effects are better, the thin film is easy to remove with water, thus being energy-saving and environment-friendly.