Antirust preservative mechanism

Rust inhibitor is a very polar compound, its polar groups have a strong adsorption force on the metal surface, forming a tight single molecule or multi-molecule protective layer on the metal surface, preventing the corrosive medium from contacting the metal, and playing a role in rust prevention. In addition, the base oil that dissolves the anti-rust agent can be adsorbed in the place where the anti-rust agent is less adsorbed, and it can be deeply adsorbed between the anti-rust additive molecules, with the help of the van der Waals force and the additive molecules, the adsorption film is more solid; In addition, due to the role of the base oil, the adsorption of the additive on the metal surface is more firm and not easy to break off, and the oil can also form a concentrate with the additive, so that the adsorption film is more compact. In short, these functions of the base oil are conducive to protecting adsorption molecules, maintaining the thickness of the oil film, and playing a certain role in rust prevention. The most commonly used corrosion prevention agents such as: barium sulfonate, calcium sulfonate, modified calcium sulfonate, borate amine, carboxylate amine.