| HCl溶液中2-巯基苯并咪唑和1-苯基-5巯基-四氮唑对铜的缓蚀作用 |
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| 引用本文： | 张大全,高立新,周国定,龚琼,陆柱.HCl溶液中2-巯基苯并咪唑和1-苯基-5巯基-四氮唑对铜的缓蚀作用[J].华东理工大学学报(自然科学版),2002,28(4):429-431. |
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| 作者姓名： | 张大全 高立新 周国定 龚琼 陆柱 |
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| 作者单位： | 1. 上海电力学院国家电力公司热力设备腐蚀与防护重点实验室,上海,200090
2. 华东理工大学防腐蚀中心,上海,200237 |
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| 基金项目： | 国家自然科学基金资助项目 ( 2 9876 0 0 8)，上海市教委科技发展基金资助项目 ( 2 0 0 0 - k- 0 1) |
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| 摘 要： | 采用失重法、电化学极化曲线和电化学阻抗谱考察了 0 .5 mol/ L HCl溶液中 2 -巯基苯并咪唑 (MBI)和 1 -苯基 -5 -巯基 -四氮唑 (PMTA)对铜的缓蚀作用。MBI和 PMTA的加入使铜的自腐蚀电位正移 ,对铜电极的阳极腐蚀过程存在抑制作用。两者复配使用增强了对铜电极的阳极和阴极电化学过程的抑制作用 ,提高了铜电极膜电阻 ,从而具有较好的缓蚀协同效果。
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| 关 键 词： | 铜缓蚀剂 2-巯基苯并咪唑 1-苯基-5-巯基-四氮唑 极化曲线 电化学阻抗 |
| 文章编号： | 1006-3080(2002)04-0429-03 |
| 修稿时间： | 2001年8月24日 |
Corrosion Inhibition of 2-Mercaptobenzimidazole and 1-Phenyl-5-mercapto-t etrazole for Copper in HCl Solution |
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| ZHANG Da quan ,GAO Li xin ,ZHOU Guo ding ,GONG Qiong ,LU Zhu.Corrosion Inhibition of 2-Mercaptobenzimidazole and 1-Phenyl-5-mercapto-t etrazole for Copper in HCl Solution[J].Journal of East China University of Science and Technology,2002,28(4):429-431. |
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| Authors: | ZHANG Da quan GAO Li xin ZHOU Guo ding GONG Qiong LU Zhu |
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| Institution: | ZHANG Da quan 1*,GAO Li xin 1,ZHOU Guo ding 1,GONG Qiong 1,LU Zhu 2 |
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| Abstract: | The corrosion inhibition of 2 mercapto benzimidazole (MBI) and 1 phenyl 5 mercapto tetrazole (PMTA) for copper in 0.5mol/L HCl solution were investigated by weight loss measurements and electrochemical methods (potentiodynamic polarization and impedance spectroscope). Coupon tests show that the inhibition efficiency of MBI is 91.6% at 10 -3 mol/L level. Potentiodynamic polarization results reveal that the two compounds act as anodic inhibitors. Inhibition of the complex of MBI and PMTA was also studied. There is a synergistic effect for the best protection at the molar ratio of 1:2 between MBI and PMTA. |
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| Keywords: | corrosion inhibition 2 mercaptobenzimidazole 1 phenyl 5 mercapto tetrazole potentiodynamic polarization electrochemisty impedance spectroscopy |
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