Synergistic effect of silanes and azole for enhanced corrosion protection of carbon steel by polymeric coatings

Inhibitor formulations of polymer-forming types for low carbon steel based on organosilanes and corrosion inhibitors have been developed. It is shown that the high adhesion and anti-corrosive properties of inhibited formulations are associated with the structural features of 1,2,3-benzotriazole (BTA) molecules, where one functional part of the molecule participates in polymerization with silanes, while the other is involved in the formation of a chemical bond with the metal. The compatibility of BTA and silanes with aqueous and organic media allows them to be used for creating inhibitive coatings with water-borne and solvent-borne paint materials.