李晓杰,郭庆行,赵景茂.3 种有机胺在盐酸溶液中的缓蚀性能对比研究[J].表面技术,2015,44(7):103-107.
LI Xiao-jie,GUO Qing-xing,ZHAO Jing-mao.Comparative Study on the Inhibition Performance of Three Amines in HCl Solution[J].Surface Technology,2015,44(7):103-107 |
| 3 种有机胺在盐酸溶液中的缓蚀性能对比研究 |
| Comparative Study on the Inhibition Performance of Three Amines in HCl Solution |
| 投稿时间：2015-02-26 修订日期：2015-07-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2015.07.019 |
| 中文关键词: 有机胺 缓蚀剂 成膜性 盐酸 碳钢 |
| 英文关键词:organic amine corrosion inhibitor film-forming ability hydrochloric acid carbon steel |
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| Author | Institution |
| LI Xiao-jie | College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China |
| GUO Qing-xing | China National Offshore Oil Corporation, Enertech-Drilling & Production Co. , Tianjin 300452, China |
| ZHAO Jing-mao | 1. College of Material Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China;2. Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Beijing 100029, China |
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| 中文摘要: |
| 目的 研究十八胺、不饱和十八胺,N-十八烷基丙撑二胺等 3 种有机胺在 1 mol/ L 的盐酸溶液中的缓蚀性能,探讨 3 种有机胺在金属表面的成膜性及其缓蚀机理。 方法 采用静态挂片质量损失法、动电位极化曲线测试、接触角测试及 AFM 力曲线测试研究 3 种有机胺在碳钢表面的成膜性及膜的均匀性。结果 不饱和十八胺的缓蚀率明显高于另外两种,为阴极抑制型缓蚀剂。 接触角测试表明,不饱和十八胺的疏水性达到了优等级,高于另外两种有机胺;其缓蚀机理为在金属表面形成一层致密的疏水性保护膜,有效隔离了金属与腐蚀介质的接触。 在粘附力测试实验中,不饱和十八胺在金属表面测量数据分布较为平均,其标准偏差最小,说明这种胺在金属表面成膜最好。 另外,不饱和十八胺在金属表面的平均粘附力最大。 结论 不饱和十八胺具有最好的缓蚀性能。 |
| 英文摘要: |
| Objective To investigate the inhibition performances of three amines including octadecylamine, unsaturated octade-cylamine and N-octadecyl trimethylene diamine in the 1 mol/ L HCl solution and further explore the film-forming property and inhibition mechanism of the three organic amines. Methods Static weight-loss method, potentiodynamic polarization, contact angle and AFM force curve measurement were used to investigate the film-forming ability and the film uniformity of these three organic amines on the metal surface. Results The inhibition efficiency of unsaturated octadecylamine, belonging to the cathode type inhibitor, was significantly higher than the other two organic amines. The contact angle measurement showed that the hydrophobicity of the unsaturated octadecylamine film reached the excellent grade, higher than the other two organic amines. Its inhibition mechanism was to form a dense and hydrophobic film on the metal surface so as to prevent the metal from contacting with the corrosive medium. In the adhesion strength test, the measured data distribution of the unsaturated octadecylamine on the metal surface was more uniform, and its standard deviation was the smallest, indicating that its film homogeneity was the best. Additionally, the mean adhesion force of the unsaturated octadecylamine on the metal surface was the highest. Conclusion The unsaturated octadecylamine has the best corrosion performance among the three amines. |
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