Inhibition of structural materials in cooling systems with styrene–acrylic copolymers

• Y.B. Makarychev, D.B. Vershok and N.A. Shapagina

Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 31-4, Leninsky prospect, 119071 Moscow, Russia

Abstract: The mechanism and barrier properties of composite coatings formed on structural metals in solutions containing oxidation and polymerization promoters for acrylic copolymers were studied. Using X-ray photoelectron spectroscopy, the chemical composition of composite coatings on steel, aluminum, and brass alloys was studied. It was established that the composite coatings contain metal hydroxides and acrylic polymers chemically bonded to each other. It was shown that dibasic carboxylic acids and trialkoxysilanes can promote the growth of hydroxyl films and the polymerization of acrylic copolymers. It was found that the composite coatings consist of metal hydroxides and acrylic polymers chemically bonded to each other. It was shown that dibasic carboxylic acids and trialkoxysilanes can promote hydroxyl film growth and acrylic copolymer polymerization. The main factors influencing the kinetics of the formation of composite coatings on these metals have been established. Corrosion tests of composite coatings in chloride-containing media at different temperatures and exposure times have been carried out. The relationship between the protective effect of the proposed and inhibitors and the chemical resistance of metals has been established.

Int. J. Corros. Scale Inhib., 2026, 15, no. 2, 494-506
doi: 10.17675/2305-6894-2026-15-2-26

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