Metal antirust compound containing oil-soluble polyaniline and application thereof

Abstract

The invention relates to a metal antirust compound containing oil-soluble polyaniline and application thereof. The invention is characterized in that the antirust compound comprises, expressed in mass percentages, 5 to 30% of oil-soluble polyaniline, 10 to 40% of dodecenylsuccinic acid and 40 to 80% of barium petroleum sulfonate. When the antirust compound provided by the invention is added into a lubricant base oil or/and mineral spirit, the antirust compound has good dissolvability and realizes phase-free separation, a solution system is uniform and stable, a lubricant anti-rust oil, or a solvent dilution type anti-rust oil not containing a film forming agent or a hard-film anti-rust oil can be prepared, and the formed anti-rust oils have the advantages of a small total addition amount, low viscosity and a good antirust effect, in particular, protruding salt mist prevention performance; when the total addition amount of the antirust compound is within 9%, antirust periods of the prepared lubricant anti-rust oil, the solvent dilution type anti-rust oil not containing a film forming agent and the hard-film anti-rust oil under a salt mist condition are greater than 6 d, greater than 11 d and greater than 31 d, respectively, and antirust periods the above-mentioned anti-rust oils under damp and hot conditions are all greater than 60 d.

Description

technical field [0001] The invention relates to a metal antirust composite agent, in particular to a metal antirust composite agent containing oil-soluble polyaniline and its application. Background technique [0002] Salt spray corrosion is a common and most destructive atmospheric corrosion. In order to solve the corrosion of metal materials by salt spray and improve the salt spray resistance of metals, it is usually prepared by adding a variety of additives to petroleum solvents or lubricating base oils. It can be used as anti-rust oil for temporary anti-corrosion protection of steel-based metal materials and their products. The quality of anti-salt spray performance directly characterizes the ability of the anti-rust oil to protect metal against corrosion under harsh conditions. The test method for the anti-salt spray period is the SH / T 0081 method. Among the commonly used anti-rust oils classified according to SH / T 0692, if the salt spray anti-rust period of the hard f...

AI Technical Summary

Problems solved by technology

However, the solubility of lanolin or lanolin soap itself in mineral oil is poor, and it is easy to precipitate and separate out, and phase separation occurs.

[0004] As far as we know, there is no relevant report on the use of oil-soluble aniline polymers in hard film antirust oils and solvent-diluted antirust oils without film formers.