Rust removing and preventing liquid for steel and preparation method thereof

Abstract

The invention discloses a rust removing and preventing liquid for steel. The rust removing and preventing liquid is prepared from the following raw materials in parts by weight: 1-2 parts of diallylamine, 2-3 parts of rosin-polythylene oxide ester, 1-2 parts of phosphoric acid, 1-2 parts of magnesium chloride, 2-3 parts of thiourea, 1-2 parts of sodium dodecyl sulfate, 6-9 parts of diethylene glycol dibenzoate, 1.5-2.5 parts of peregal, 1-2 parts of EDTA (ethylene diamine tetraacetic acid) disodium, 4-5 parts of additives, and 300 parts of water. The rust removing and preventing liquid for steel disclosed by the invention is rapid in rust removal; due to an adopted high-molecular polymer and a chelating agent, a layer of thin film is formed on the metal surface so as to achieve air-isolating and anti-oxidation effects, and the thin film is easily removed just by virtue of water washing. The rust removing and preventing liquid for steel disclosed by the invention is low in manufacturing process cost, and suitable for being used under the low temperature condition of 12-35 DEG C, and the film can be rapidly formed in 0.5-3 minutes, so that the rust prevention performance of the rust removing and preventing liquid for steel is good, and superior to GB6807 standards; the rust removing and preventing liquid for steel disclosed by the invention is small in environmental pollution, and beneficial to popularization and utilization.

Description

technical field [0001] The invention relates to the technical field of rust prevention, in particular to a steel rust removal and antirust solution 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,...

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