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Vol. 26 No. 22 (2014): Vol 26 Issue 22

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Study of Corrosion and Scale Inhibition of Polyepoxysuccinic Acid Derivative

https://doi.org/10.14233/ajchem.2014.17659
Xinhua Liu
School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, P.R. China ; Qinggong College, Hebei United University, Tangshan 063000, Hebei, P.R. China
Wenjing Wang
School of Chemical Engineering and Technology, Hebei United University, Tangshan 063000, Hebei, P.R. China
Xinjia Tong
Qinggong College, Hebei United University, Tangshan 063000, Hebei, P.R. China
Yunfei Ding
Qinggong College, Hebei United University, Tangshan 063000, Hebei, P.R. China
Xinqiang Zhao
Qinggong College, Hebei United University, Tangshan 063000, Hebei, P.R. China
Hong Su
Qinggong College, Hebei United University, Tangshan 063000, Hebei, P.R. China

Corresponding Author(s) : Xinhua Liu

hualiyiwang@163.com

Asian Journal of Chemistry, Vol. 26 No. 22 (2014): Vol 26 Issue 22

Abstract

Polyepoxysuccinic acid derivative was synthesized from L-cysteine and polyepoxysuccinic acid a condensation polymer formed by cyclization and polymerization with maleic anhydride. The structure of polyepoxysuccinic acid derivative was characterized by means of FTIR and 13C NMR. The scale inhibition and corrosion inhibition performances of polyepoxysuccinic acid derivative were studied. Scale inhibition and corrosion mechanisms were analyzed by means of SEM. The scale inhibition rate of polyepoxysuccinic acid derivative can reach 98.9 % under Ca2+ 400 mg L-1, HCO3– 800 mg L-1, polyepoxysuccinic acid derivative 8 mg L-1. Polyepoxysuccinic acid derivative is better than polyepoxysuccinic acid in corrosion inhibition performance and the corrosion inhibition rate can reach 65.14 % at 40 °C in dynamic experiment. SEM showed that the calcium carbonate crystal lattice was distorted completely from calcite to vaterite by using polyepoxysuccinic acid derivative. The surface of the test piece has dense protective adsorption film layer when it was immersed in solution with polyepoxysuccinic acid derivative.

Keywords

Polyepoxysuccinic acid Modified polyaspartic acid Corrosion inhibition Scale inhibition mechanism
Liu, X., Wang, W., Tong, X., Ding, Y., Zhao, X., & Su, H. (2014). Study of Corrosion and Scale Inhibition of Polyepoxysuccinic Acid Derivative. Asian Journal of Chemistry, 26(22), 7716–7720. https://doi.org/10.14233/ajchem.2014.17659
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