中华医学超声杂志

应用化学 ›› 2009, Vol. 26 ›› Issue (09): 1075-1079.

• 研究论文 • 上一篇    下一篇

红四氮唑在盐酸介质中对冷轧钢的缓蚀作用

李向红1*,邓书端2,付惠1   

  1. (1.西南林学院基础部 昆明 650224；2.西南林学院木质科学与装饰工程学院 昆明)
  • 收稿日期:2008-09-16 修回日期:2008-11-04 出版日期:2009-09-10 发布日期:2009-09-10
  • 通讯作者: 李向红，男，硕士，讲师; E-mail:xianghongli@163.com; 研究方向：金属的腐蚀与防护
  • 基金资助:
    西南林学院重点科研基金项目（110605）

Corrosion inhibition of red tetrazolium for cold rolled steel in hydrochloric acid media

LI Xiang-Hong1*, DENG Shu-Duan2, FU Hui1   

  1. (1.Department of Fundamental Courses;2.Department of Wood Science and
    Decoration Engineering,Southwest Forestry College,Kunming 650224)
  • Received:2008-09-16 Revised:2008-11-04 Published:2009-09-10 Online:2009-09-10

PDF

1392

被引次数

8 | 5

摘要：

用失重法、电化学法和原子力显微镜（AFM）研究了红四氮唑在1.0 mol/L ~ 5.0 mol/L HCl介质中对冷轧钢的缓蚀作用。结果表明：红四氮唑对冷轧钢具有良好的缓蚀作用，为混合抑制型缓蚀剂，且在钢表面的吸附符合Langmuir吸附模型；并通过吸附热力学和动力学参数详细讨论了缓蚀作用机理；AFM测试结果表明红四氮唑在钢表面吸附形成了致密的缓蚀剂膜层。

关键词: 盐酸, 冷轧钢, 红四氮唑, 缓蚀, 吸附, 原子力显微镜

Abstract:

The inhibition effect of red tetrazolium on the corrosion of cold rolled steel (CRS) in 1.0 ~ 5.0 mol/L HCl media has been studied by weight loss and potentiodynamic polarization methods. Atomic force microscope (AFM) provided the CRS surface conditions. The results show that neutral red tetrazolium is a good inhibitor for CRS, and the adsorption of red tetrazolium on the CRS surface follows the Langmuir adsorption isotherm equation. Polarization curves show that red tetrazolium is a mixed-type inhibitor in hydrochloric acid. Based on the adsorption thermodynamic and kinetic parameters, the inhibitive mechanism is discussed. AFM results show that the introduction of red tetrazolium into HCl solution results in the formation of a compact and dense inhibitive film on the CRS surface.

Key words: hydrochloric acid, cold rolled steel, red tetrazolium, inhibition, adsorption, atomic force microscope

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