RESEARCH ON CORROSION INHIBITION PERFORMANCE OF NON-PHOSPHORUS COMPOSITE CORROSION INHIBITOR FOR CARBON STEEL, COPPER AND STAINLESS STEEL

被引：0
|
作者：
Chen, Yan Min [1 ]
Cheng, Yu Shan [1 ]
Sun, Cai Xia [1 ]
Xu, Hui Wu [1 ]
机构：
[1] Henan Acad Sci, Inst Energy Co Ltd, Zhengzhou Chem Cleaning & Ind Water Treatment Eng, Zhengzhou 450008, Henan, Peoples R China
来源：
OXIDATION COMMUNICATIONS | 2016年 / 39卷 / 2A期
关键词：
non-phosphorus; electrochemical; impedance; corrosion inhibition performance; SCALE INHIBITOR; ENVIRONMENT; ACID;
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
One highly efficient non-phosphorus corrosion inhibitor was developed from gamma polyglutamic acid (gamma-PGA), polyaspartic acid (PASP) and benzotriazole (BTA). Its corrosion inhibition performances' for carbon steel, copper and stainless steel were evaluated by electrochemical, rotary hanging-piece and dynamic simulation. The results illustrated that the corrosion inhibitor was a cathodic polarisation-based suppression of mixed-type water treatment agent and its corrosion inhibiting rates were 82% (carbon steel), 95% (copper) and 99% (stainless steel), respectively. Electrochemical impedance spectroscopy (EIS) showed that the dense protective films between corrosion inhibitor and metals could inhibit these corrosion rates. Further dynamic simulated test also indicated that the corrosion inhibitor met the requirements of circulating cooling water.
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页码：2008 / 2015
页数：8
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