On surfactant-polymer association and its effect on the corrosion behavior of carbon steel in cyclohexane propionic acid

被引：57
作者：
Deyab, M. A. [1 ]
Abd El-Rehim, S. S. [2 ]
机构：
[1] EPRI, Nasr City, Cairo, Egypt
[2] Ain Shams Univ, Fac Sci, Dept Chem, Cairo, Egypt
来源：
CORROSION SCIENCE | 2012年 / 65卷
关键词：
acid solutions; low alloy steel; polymer; polarization; EIS; acid inhibition; SULFURIC-ACID; MILD-STEEL; CATIONIC SURFACTANTS; IONIC SURFACTANTS; INHIBITION; CONDUCTIVITY; COPOLYMER; WATER; IMPEDANCE; CHLORIDE;
D O I：
10.1016/j.corsci.2012.08.032
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The inhibitive properties of cationic surfactant (CS) in the presence of copolymer (CP) at different conditions on the corrosion of carbon steel in cyclohexane propionic acid (CHPA) were studied using polarization, conductivity and EIS measurements. CS acts as an inhibitor for dissolution of carbon steel in CHPA. At low pH (3.4-4) and in the absence of Cl- ion the association between CS and CP is weak. Increasing the pH value (>4) or addition of KCl to the solution increases both CMC value and corrosion inhibition efficiency of CS indicating the association between surfactant and copolymer molecules is increased. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：309 / 316
页数：8
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