2-(3-甲氧基-4-羟基苯基)苯并咪唑的碳钢海水缓蚀性能  

The Corrosion Inhibiton Performance of 2-(3-methoxy-4-hydroxyphenyl) Benzimidazole for Carbon Steel in Saltwater

作　　者：茌方 周桃玉[1] 

机构地区：[1]南京工业大学环境学院,江苏南京211816

出　　处：《全面腐蚀控制》2014年第9期68-71,共4页Total Corrosion Control

摘　　要：本文研究合成了样品2-(3-甲氧基-4-羟基苯基)苯并咪唑(BID),并采用傅立叶红外光谱(FT-IR)和紫外光谱对其进行了表征。同时,采用电化学极化曲线(EPC)、交流阻抗谱(EIS)和腐蚀失重法测试了BID的缓蚀效果。结果表明,BID在3.5%NaCl溶液中对Q235碳钢有约75%的缓蚀效果,腐蚀速率降至0.115mm/a,其作用效果为阳极抑制型。In this paper, 2-（3-methoxy-4-hydroxyphenyl）benzimidazole（BID） is synthesized and characterized by Fourier transform infrared spectroscopy（FT-IR） and ultraviolet spectroscopy. Its corrosion inhibition performance is investigated by electrochemical polarization curves（EPC）, electrochemical impedance spectroscopy（EIS） and weight loss methods. The results show that, with the presence of BID in 3.5%NaCl solution, the corrosion rate of Q235 steel dropped to 0.115mm/a and inhibition efficiency reaches to about 75%, which act as anodic type inhibitor in saltwater solution.

关 键 词：苯并咪唑 盐水 缓蚀 碳钢 

分 类 号：TG174.42[金属学及工艺—金属表面处理]