Mixed Inhibitors: Mutual Influence of Components

• Published in: Protection of metals and physical chemistry of surfaces Vol. 58; no. 7; pp. 1249 - 1254
• Main Authors: Luchkin, A. Yu, Goncharova, O. A., Andreev, N. N.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.12.2022; Springer Nature B.V
• Subjects: Characterization and Evaluation of Materials; Chemistry and Materials Science; Corrosion and Coatings; Corrosion Inhibitors; Formulations; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Metallic Materials; Metallurgical constituents; Mixtures; Tribology; synergism; criteria of mutual interaction of inhibitors; chamber protection of metals; mixed corrosion inhibitors; antagonism; corrosion inhibitors
• ISSN: 2070-2051; 2070-206X
• DOI: 10.1134/S2070205122070085

—The use of mixed formulations is a promising way to increase the efficiency of inhibitory protection of metals. Criteria for the additivity of the protective action of the components of mixed corrosion inhibitors, both their synergistic interaction and antagonism depend on the parameter used in evaluating the protection efficiency. Equations were proposed that make it possible to separate the effects of synergy and antagonism of inhibitors based on data on the degrees or terms of metal protection by each of the mixture components and the mixture itself. The synergism of the protective action is a direct recommendation for using the mixed inhibitor instead of each of its component. However, the absence of the synergism of protective action, and even an antagonism, is not always a contraindication for use of the mixture. Even an antagonistic mixture can provide more effective metal protection compared to its constituents. In the absence of specific interactions, the protective properties of the inhibitor mixtures always exceed the protective properties of their components. This superiority is higher with a greater effectiveness of mixed inhibitors.