A new sight of water-soluble polyacrylamide modified by β-cyclodextrin as corrosion inhibitor for X70 steel

被引：7
|
作者：
Yan, Xueling [1 ]
Zou, Changjun [1 ]
Qin, Yibie [1 ]
机构：
[1] Southwest Petr Univ, Coll Chem & Chem Engn, Chengdu 610500, Peoples R China
来源：
STARCH-STARKE | 2014年 / 66卷 / 11-12期
基金：
中国国家自然科学基金;
关键词：
Corrosion; Cyclodextrin; Electrochemical impedance spectroscopy; Polarization curve; Polyacrylamide; ENHANCED OIL-RECOVERY; HYDROCHLORIC-ACID; MILD-STEEL; CARBON-STEEL; COPPER; PERFORMANCE; ALUMINUM; EXTRACT; POLYMER;
D O I：
10.1002/star.201400063
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The application of water-soluble polyacrylamide modified by -cyclodextrin (ACDPAM) as a corrosion inhibitor on X70 steel in 0.5M H2SO4 solution has been evaluated using electrochemical measurements, weight loss, and scanning electron microscopy (SEM). The polarization curves results reveal that the copolymer acts as a mixed-type inhibitor. The inhibition efficiency is found to increase by the increase in copolymer concentration and decreases by the rise in temperature, and it also exhibits effective inhibition even at a higher temperature. The adsorption of ACDPAM on X70 steel surface obeys the Langmuir adsorption isotherm and is governed by chemisorption. The SEM results demonstrate that X70 surface is protected by ACDPAM.
引用
收藏
页码：968 / 975
页数：8
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