This paper aims to reduce environment pollution caused by benzotriazole. The authors chose one of the best inhibitors from 2-aminobenzimidazole, 2-methylbenzimidazol, 2-mercaptobenzimidazole and benzimidazole in combination with benzotriazole.
The electrochemical measurement indicated that 2-methylbenzimidazol had the best inhibition behavior. Then, it was mixed with benzotriazole. Techniques such as field emission scanning electron microscopy, atomic force microscopy, Raman spectroscopy and optical contact angle measurements were used.
The results showed that the inhibition efficiency was up to 99.98%, when the mixture concentration was 20 mmol/L and the molar ratio 1:1.
1-benzotriazole was mixed with 2-methylbenzimidazol for the first time. During the exist of methyl, 2-methylbenzimidazol has the better inhibition; this point was ignored by researchers.
The authors thank the Liaoning Provincial Department of Education Innovation Team Project (LT2015001) and the Liaoning Provincial College Innovation Team Project (2018479–14) for support.
Liu, L., Lu, S., Wu, Y.Q., Xie, J.Y. and Xing, J. (2020), "Corrosion inhibition behavior of four benzimidazole derivatives and benzotriazole on copper surface", Anti-Corrosion Methods and Materials, Vol. 67 No. 6, pp. 565-574. https://doi.org/10.1108/ACMM-12-2019-2235
Emerald Publishing Limited
Copyright © 2020, Emerald Publishing Limited