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
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0.5 mol/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.
咪唑啉
缓蚀剂
碳钢
高温
chlorine
imidazoline
inhibitor
carbon steel
high temperature
Abstract
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 0.5 mol/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.
中图分类号 TG174.42
所属栏目 缓蚀剂专题
基金项目 国家重大科技专项 (2013ZX07210001)
收稿日期 2014/5/14
修改稿日期
网络出版日期
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备注杨文忠(1970-),博士生导师,从事金属腐蚀与防护、工业水处理.
引用该论文: ZHANG Ke-gui,YANG Wen-zhong,XU Bin,LIU Ying,YIN Xiao-shuang. Synthesis and Inhibition Efficiency of 2-(2-trichloromethyl-4,5-dihydro-imidazol-1-yl)-Ethylamine[J]. Corrosion & Protection, 2015, 36(2): 122
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参考文献
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【7】DILEEP K Y,MAITI B,QURAISHI M A.Electrochemical and quantum chemical studies of 3,4-dihydropyrimidin-2(1H)-ones as corrosion inhibitors for mild steel in hydrochloric acid solution[J].Corros Sci,2010,52:3586-3598.
【8】SAM J,ABRAHAM J.Electroanalytical and theoretical investigations of the corrosion inhibition behavior of bis-1,2,4-triazole precursors EBATT and BBATT on mild steel in 0.1 M HNO3[J].Industrial & Engineering Chemistry Research,2012,51:16633-16642.
【9】EMEREGL K C,HAYVALI M.Studies on the effect of a newly synthesized schiff base compound from phenazone and vanillin on the corrosion of steel in 2 M HCl[J].Corros Sci,2006,48:797-812.
【10】SATAPATHY A K,GUNASEKARAN G,SAHOO S C,et al.Corrosion inhibition byJusticia gendarussa plant extract in hydrochloric acid solution[J].Corros Sci,2009,51:2848-2856.
【11】OLIVARES O,LIKHANOVA N V,GMEZ B,et al.Electrochemical and XPS studies of decylamides of α-amino acids adsorption on carbon steel in acidic environment[J].Appl Surf Sci,2006,252:2894-2909.
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【13】HOSSEINI M,MERTENS S F L,GHORBANI M,et al.Asymmetrical schiff bases as inhibitors of mild steel corrosion in sulphuric acid media[J].Mater Chem Phys,2003,78:800-808.
【14】ALJOURANI J,RAEISSI K,GOLOZAR M A.Benzimidazole and its derivatives as corrosion inhibitors for mild steel in 1 M HCl solution[J].Corros Sci,2009,51:1836-1843.
【15】BENTISS F,LAGRENEE M,TRAISNEL M,et al.The corrosion inhibition of mild steel in acidic media by a new triazole derivative[J].Corros Sci,1999,41:789-803.
【16】WANG X M,YANG H Y,WANG F H.An investigation of benzimidazole derivative as corrosion inhibitor for mild steel in different concentration HCl solutions[J].Corros Sci,2011,53:113-121.
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