应用化学 ›› 2010, Vol. 27 ›› Issue (06): 716-720.DOI: 10.3724/SP.J.1095.2010.90501

• 研究论文 • 上一篇    下一篇

席夫碱缓蚀剂的合成及其对碳钢材料缓蚀性能

关鲁雄*,占晶晶,区叶秀   

  1. (中南大学化学化工学院 长沙 410083)
  • 收稿日期:2009-07-27 修回日期:2009-10-11 出版日期:2010-06-10 发布日期:2010-06-10
  • 通讯作者: 关鲁雄,男,教授,博士生导师; E-mail:guanluxiong@tom.com; 研究方向:无机化学与资源化学

Corrosion inhibition of carbon steel by some Schiff base compounds

GUAN Lu-Xiong*, ZHAN Jing-Jing, OU Ye-Xiu   

  1. (College of Chemistry and Chemical Engineering,Central South University,Changsha 410083)
  • Received:2009-07-27 Revised:2009-10-11 Published:2010-06-10 Online:2010-06-10

摘要:

采用失重法和电化学方法研究了2种席夫碱类缓蚀剂N,N′-二水杨醛基-1,2-乙二亚胺(SB-Ⅰ)和水杨醛基吡啶-2-亚胺(SB-Ⅱ)在1 mol/L盐酸溶液中对A3碳钢的缓蚀性能。 失重实验表明,SB-Ⅰ和SB-Ⅱ在1 mol/L盐酸溶液中的浓度为20 mmol/L时,缓蚀效率分别达85%和92%。 经三电极体系极化曲线和交流阻抗谱测定实验表明,缓蚀性能是由于碳钢材料表面为缓蚀剂分子吸附所致,二者均属阴极型缓蚀剂。

关键词: 席夫碱, 缓蚀剂, 合成, 盐酸, A3碳钢

Abstract:

Inhibitory effects of two Schiff bases N,N′-bis(salicylidene)-1,2-ethylendiamine(SB-Ⅰ) and salcylidene-pyridine-2-yl-amine(SB-Ⅱ) on the corrosion of carbon steel in 1 mol/L HCl solution were studied via mass loss measurement method, polarization and electrochemical impedance spectroscopy. The results show that compounds SB-Ⅰ and SB-Ⅱ have fairly good inhibiting properties for carbon steel corrosion in hydrochloric acid with the best efficiencies of 85% and 92%, respectively, at 20 mmol/L additive concentration, and they belong to anodic inhibitors.

Key words: Schiff base, inhibitors, synthesis, hydrochloric acid, A3 carbon steel

中图分类号: