石油化工高等学校学报

石油化工高等学校学报 ›› 2019, Vol. 32 ›› Issue (2): 8-14.DOI: 10.3969/j.issn.1006-396X.2019.02.002

• 石油化工 • 上一篇    下一篇

两种邻苯二胺类席夫碱缓蚀剂缓蚀性能研究

任正博卢爽刘琳   

  1. (渤海大学 化学化工学院,功能化合物的合成及应用辽宁省重点实验室,辽宁 锦州 121013)
  • 收稿日期:2019-01-02 修回日期:2019-01-23 出版日期:2019-05-01 发布日期:2019-05-08
  • 通讯作者: 刘琳(1965⁃),女,博士,教授,从事功能材料的合成与应用、材料表面功能化的研究;E⁃mail:liulin@bhu.edu.cn。
  • 作者简介:任正博(1993-),男,硕士研究生,从事金属腐蚀与防护的研究;E?mail:clsrzb@126.com。
  • 基金资助:
    国家自然科学基金项目(21878024);辽宁省创新团队项目(LT2015001)。

Corrosion Inhibition Performance of Two Kinds of Schiff Base Inhibitors of o⁃Phenylenediamine

Ren ZhengboLu ShuangLiu Lin   

  1. (College of Chemistry and Chemical Engineering, Bohai University, Key Laboratory for Synthesis and Application of the Functional Compounds, Jinzhou Liaoning 121013,China)
  • Received:2019-01-02 Revised:2019-01-23 Published:2019-05-01 Online:2019-05-08

摘要: 运用分子自组装技术在铜电极表面分别制备了双水杨醛缩邻苯二胺(简称A)和双邻香兰素缩邻苯二胺(简称B)两种席夫碱缓蚀膜。采用电化学方法研究了两种席夫碱自组装单分子层膜在质量分数3.5%的NaCl溶液中对铜的缓蚀行为。在25 ℃下,席夫碱A溶液浓度为10 mmol/L,组装时间为4 h时缓蚀效果最佳,席夫碱B溶液浓度为15 mmol/L,组装时间为6 h时缓蚀效果最佳,A、B的缓蚀效率分别达到94.06%和96.62%。结果表明,两种缓蚀剂对铜具有很好的缓蚀性能,且缓蚀效果B>A。

关键词: 席夫碱, 自组装膜, 缓蚀性能, 电化学阻抗, 极化曲线

Abstract:  Self⁃assembled monolayer films of i⁃salicylaldehyde⁃o⁃phenylenediamine (A) and di⁃o⁃vanillin⁃o⁃phenylenediamine (B) were fabricated respectively on copper electrode surface by molecular self⁃assembled process. The corrosion inhibition performance of the Schiff bases self⁃assembled films (SAMs) in 3.5% NaCl solution was examined by electrochemical methods. The best corrosion inhibition rate of Schiff base A reached to 94.06% with the concentration of 10 mmol/L and assembly time of 4 h at 25 ℃. For Schiff base B, the best corrosion inhibition rate reached to 96.62% with the concentration of 15 mmol/L and assembly time of 6 h at 25 ℃. The results showed that two inhibitors had good corrosion inhibition performance, and the inhibition effect of B was better than that of A.

Key words: Schiff base, Self?assembled membrane, Corrosion inhibition, Electrochemical impedance spectroscopy, Polarization curve

引用本文

任正博,卢爽,刘琳. 两种邻苯二胺类席夫碱缓蚀剂缓蚀性能研究[J]. 石油化工高等学校学报, 2019, 32(2): 8-14.

Ren Zhengbo,Lu Shuang,Liu Lin. Corrosion Inhibition Performance of Two Kinds of Schiff Base Inhibitors of o⁃Phenylenediamine[J]. Journal of Petrochemical Universities, 2019, 32(2): 8-14.

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