Syza O. Development of scientific principles of creation the inhibitor synergist compositions and of the modified epoxy coatings for corrosion protection of steel

The dissertation is devoted to the increase of protection from corrosion and corrosion-mechanical fractures (CMF) by the synergistic compositions and modified epoxy coatings in aggressive environments. The scientific principles of creation of the new effective protective epoxy powder coatings (EPC), based on quantitative interrelation of electronic structure, thermodynamic characteristics, adsorption and protection properties of N-, S-, O - heterocycles (HTC) - derivative of imidazole, thiazole, triazene, as modifiers EPC are developed. The basic regularities of the mechanism of improvement of protective properties of epoxy composition and intensification of process of formation of coverings under HTC action due to complex formation on the metal surface and in the hardening system. This takes place because activization of N-, S-,O and C-protones formation and nucleophylic substitution of ligands. The new synergistic compositions with HTC, using secondary raw material as inhibitors and new epoxy coatings which are correspondent to the ecology safety demands, and provide a great economy of materials and power resources. The obtained scientific results are introduced at the enterprises of the Chernigov region for protection against corrosion and КМР of the equipment, pipelines, reactors etc.