The adsorption and corrosion inhibition of some cationic gemini surfactants on carbon steel surface in hydrochloric acid

被引：105
|
作者：
Qiu, LG [1 ]
Xie, AH [1 ]
Shen, YH [1 ]
机构：
[1] Anhui Univ, Sch Chem & Chem Engn, Hefei 230039, Anhui, Peoples R China
来源：
CORROSION SCIENCE | 2005年 / 47卷 / 01期
基金：
中国国家自然科学基金;
关键词：
gemini surfactants; cationic surfactants; acid corrosion; acid inhibition; steel; adsorption;
D O I：
10.1016/j.corsci.2004.05.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The adsorption and corrosion inhibition of the gemini surfactants 1,2-ethane bis(dimethyl alkyl (CnH2n+1) ammonium bromide) (designated as n - 2 - n, n = 10, 12 and 16) on the steel surface in 1 M hydrochloride acid were studied using the weight loss method. It was found that the adsorption of the gemini surfactants on the steel surface is the main reason to cause the steel corrosion inhibition in hydrochloride acid, and the inhibition efficiency increases with the increase of surfactant concentration and reaches the maximum value near the CMC. A possible adsorption model of gemini surfactant onto the metal surface was also discussed. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：273 / 278
页数：6
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