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电化学(中英文) ›› 2003, Vol. 9 ›› Issue (3): 314-319. 

• 研究论文 • 上一篇    下一篇

缓蚀剂在N80钢上吸附行为研究

李爱魁,李国敏,郭兴蓬   

  1. 华中科技大学化学系,华中科技大学化学系,华中科技大学化学系 湖北武汉430074 ,湖北武汉430074 ,湖北武汉430074
  • 收稿日期:2003-08-28 修回日期:2003-08-28 出版日期:2003-08-28 发布日期:2003-08-28

Study on Adsorption Behavior of Inhibitors on N80 Steel

LI Ai_kui,Li Guo_min,GUO Xing_peng *   

  1. ( Chemistry Department,Huazhong University of Science and Technology,Hubei 430074,China
  • Received:2003-08-28 Revised:2003-08-28 Published:2003-08-28 Online:2003-08-28

摘要: 应用极化曲线和交流阻抗技术研究了 4种缓蚀剂在N80钢基体和碳酸亚铁膜上的吸脱附行为 .实验表明 ,对同一种缓蚀剂 ,其在N80钢光洁表面和在腐蚀产物膜上的吸附力强度不同 ,而酸性缓蚀剂和小分子缓蚀剂在N80钢光洁金属表面和碳酸亚铁膜上各表现出不同的缓蚀行为

关键词: 缓蚀剂, CO2腐蚀, 极化曲线, 电化学阻抗, 吸脱附, 碳酸亚铁膜

Abstract: The de_adsorption behavior of four inhibitors on N80 steel with and without carbonate film was investigated by polarization and electrochemical impedance spectroscopy (EIS) techniques. It was found that,for different inhibitors,de_adsorption behavior and adsorbability between with and without carbonate film are different.Furthermore,acidic inhibitor and small size molecule inhibitor shows different inhibition behavior.

Key words: Inhibitor, CO 2 corrosion, Polarization curve, Electrochemical impedance spectroscopy, De_adsorption, Carbonat film

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