Corrosion Inhibition Performance of Mixed Fatty Imidazoline Guanidinium Salts

2018 International Conference on Civil and Hydraulic Engineering

土木建筑工程;水利工程

He, Guanning^1 ; Lv, Song^1 ; Jia, Qunpo^1 ; Yuan, Bin^1

College of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou

510006, China^1

关键词: Adsorption membranes;    Compound inhibitors;    Corrosion inhibition;    Corrosion inhibition performance;    Corrosion morphology;    Electrochemical experiments;    Electrochemical polarization;    Experimental conditions;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/189/3/032003/pdf
DOI  :  10.1088/1755-1315/189/3/032003

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

With novel mixed aliphatic imidazoline guanidinium as corrosion inhibitor, static weight-loss method and electrochemical polarization curve method were utilized to investigate the corrosion inhibition performance of the compound inhibitor on Q235 steel in 5% HCl solution, and scanning electron microscopy (SEM) was used to observe the corrosion morphology of the metal surface. The experiment results of static weight-loss method showed that the corrosion inhibition rate of carbon steel was 98.39% under the experimental conditions of concentration of 10 mg/L, corrosion time of 18 h, and temperature of 60°C; the results of electrochemical experiments indicated that the corrosion inhibitor was of a kind of adsorption membrane inhibitor dominantly inhibiting anode inhibition.