Rust transfer agent and preparation method thereof

Abstract

The invention discloses a rust transfer agent. The rust transfer agent is prepared from the following raw materials in percentage by weight: 10-20% of RC-50, 0.1-0.5% of gaseous SiO2, 20-30% of precipitated barium sulphate, 40-60% of H2O2 (S), 0.01-0.03% of waterborne defoaming agent and 5-15% of deionized water, or 8-18% of RC-50, 0.3-1% of gaseous SiO2, 20-30% of precipitated barium sulphate, 40-50% of H2O2, 0.01-0.03% of waterborne defoaming agent and 15-25% of deionized water. The preparation method comprises the following steps of firstly, adding the metered deionized water, RC-50 and H2O2 (S) into a vessel, and uniformly stirring by using a high-speed dispersion machine; adding the waterborne defoaming agent, and uniformly stirring; and adding gaseous SiO2 and precipitated barium sulphate, and uniformly stirring to obtain the waterborne rust transfer agent. The rust transfer agent is favorable in rust removal and prevention performances, good in film forming property, environment-friendly, simple in construction process and low in cost; and in addition, the rust transfer agent can be formed into an inert metal complex together with metal oxide and can form a protective layer on the surface of metal, so that the salt spray resistance property of a product is greatly improved. The rust transfer agent can be used for replacing pickling, sand blasting and a manual method to remove rust and is environment-friendly, nontoxic, harmless, free of pollution and convenient to use.

Description

technical field [0001] The invention belongs to the field of metal rust prevention and rust removal, and in particular relates to a rust transfer agent. Background technique [0002] Long-term exposure of large equipment to the air will form metal oxides on the surface, forming rust. Corrosion will greatly damage the equipment, and even cause the equipment to be scrapped. Most of the traditional rust removal methods use pickling, sandblasting or artificial rust removal. However, the pickling method is easy to form a rust acid film, and it must be neutralized with lye after pickling, which is extremely inconvenient to use. The sandblasting rust removal method has been widely used, but the efficiency is very low, the cost is expensive, and the rust removal effect is poor. Manual rust removal is mainly to manually use wire brushes and abrasive paper to remove rust, which requires a huge amount of labor, so the effect is not good. [0003] Patent CN101182397A (2008) provides...

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Problems solved by technology

However, its solvent uses benzene solvents such as xylene, which causes great harm to the environment.

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