Study on Corrosion Inhibition and Adsorption of Polyaspartic Acid Corrosion Inhibitor to Seawater Copper

被引：1
|
作者：
Liang, Lihua [1 ]
Zuo, Changjiang [1 ]
Shi, Xin [1 ]
机构：
[1] Qingdao Tech Coll, Qingdao, Shandong, Peoples R China
来源：
2019 4TH INTERNATIONAL WORKSHOP ON MATERIALS ENGINEERING AND COMPUTER SCIENCES (IWMECS 2019) | 2019年
关键词：
Copper; Sea water; PASP; adsorption and corrosion;
D O I：
10.25236/iwmecs.2019.048
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
The inhibitory performance and adsorption behavior of green inhibitor Polyaspartic acid (PASP) on copper in 3% NaCl solution was studied by electrochemical impedance and polarization curve method. The results showed that when PASP was used at an optimal concentration of 15 mg/L, the corrosion inhibition rate could reach 77.2%. The adsorption of PASP significantly reduced the erosion of Cl-, which belongs to the anode type corrosion inhibitor. The adsorption behavior of PASP obeys the Langmuir adsorption isotherm. The formula is a spontaneous, exothermic process that belongs to chemical adsorption.
引用
收藏
页码：232 / 238
页数：7
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