1-乙氨基-2-三氯甲基-咪唑啉的制备及其缓蚀性能  

Synthesis and Inhibition Efficiency of 2-(2-trichloromethyl-4,5-dihydro-imidazol-1-yl)-Ethylamine

作　　者：张可桂 杨文忠[1] 徐斌[1] 刘瑛[1] 尹晓爽[1] 

机构地区：[1]南京工业大学理学院,南京210009

出　　处：《腐蚀与防护》2015年第2期122-127,共6页Corrosion & Protection

基　　金：国家重大科技专项(2013ZX07210001)

摘　　要：合成了新型的含氯咪唑啉化合物(CIM),以1H-NMR和FTIR确定其结构。采用静态失重法、动电位极化曲线、电化学阻抗等方法研究了CIM在0.5mol/L盐酸溶液中对碳钢的腐蚀抑制作用。结果表明,CIM的缓蚀率随其浓度增大而增大,且在高温时保持高效的缓蚀性能。CIM在碳钢表面的吸附行为符合Langmuir吸附等温式,属于混合型吸附。A novel imidazoline compound,2-（2-trichloromethyl-4,5-dihydro-imidazol-1-yl）-ethylamine（CIM）was synthesized in laboratory.The structure of CIM was identified by 1H-NMR and FTIR. Weight-loss method,potentiodynamic polarization,electrochemical impedance spectroscopy（EIS）techniques and scanning electron microscopy（SEM）were used to investigate the corrosion behavior of mild steel in 0.5mol/L HCl solution with or without CIM. The results showed that the inhibition efficiency of CIM increased with increasing inhibitor concentration and kept effective at high temperatures.The imidazoline compound is a mixed-type inhibitor whose adsorption behavior onto mild steel surface can be well expressed by Langmuir isotherm equation.

关 键 词：氯 咪唑啉 缓蚀剂 碳钢 高温 

分 类 号：TG174.42[金属学及工艺—金属表面处理]