IFKhAN-140, a chamber corrosion inhibitor for brassстатья
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Дата последнего поиска статьи во внешних источниках: 29 июля 2020 г.
Аннотация:A combination of accelerated electrochemical (potentiodynamic and impedance) andcorrosion methods (performed under intense condensation of moisture and neutral salt fog), aswell as outdoor tests were used to study the protective aftereffect of adsorption films formedon brass on exposure to a mixture of octadecylamine and benzotriazole ( IFKhAN-140) at 100and 120℃. It was shown that the components of IFKhAN-140 synergistically enhance theprotective aftereffect of the adsorption layers. The protective aftereffect of the adsorbedinhibitor films is most pronounced at a chamber treatment temperature of 120℃, although at100℃ the corrosion inhibition factors are also high. The protective properties of the inhibitorat the chamber treatment temperatures studied increase symbiotically with the treatmentduration. However, chamber treatment for more than one hour leads to undesirable metaltarnishing. Using the ellipsometry method, it was found that the thickness of the surface filmson brass that provides a significant increase in its corrosion resistance does not exceed 20 nm.The high protective properties of IFKhAN-140 toward steel, copper and brass at once allow itto be regarded as a formulation suitable for the protection of polymetallic products.