Gemini表面活性剂对N80钢在盐酸介质中的缓蚀作用

Q4 Chemical Engineering 腐蚀科学与防护技术 Pub Date : 2014-01-23 DOI:10.11903/1002.6495.2013.247

Hong Liu, Lin Zhu, Linfeng Li, Dengfeng Ji

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引用次数: 0

摘要

采用失重法、电化学法和扫描电镜法研究了Gemini表面活性剂DBA2- 12对N80钢在1 mol/L HCl中的缓蚀作用。结果表明，DBA2- 12具有良好的缓蚀性能。质量损失法表明，DBA2- 12的缓蚀效率随着DBA2- 12浓度的增加而增加，而随着酸性介质温度的升高而降低。dba2 -12在金属表面的吸附服从Langmuir等温线。动电位极化研究清楚地表明，DBA2- 12作为混合型缓蚀剂，可以吸附在N80钢表面，形成保护膜，降低腐蚀速率。

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Corrosion Inhibiton of N80 Steel in HCl Acid Medium by Gemini Surfactant

The corrosion inhibition of Gemini surfactant(DBA2- 12) for N80 steel in 1 mol/L HCl was investigated using mass loss methods, electrochemical methods and scanning electron microscopic methods. It was found that DBA2- 12exhibited good corrosion inhibition performance. Mass loss method reveals that the inhibition efficiency increases with the increase in concentration of DBA2- 12, while decreases with the increase in temperature of acid medium. The adsorption of DBA2-12on the metal surface has been found to obey Langmuir isotherm. Potentiodynamic polarization studies clearly suggest that DBA2- 12acts as mixed- type inhibitor, which can be adsorbed on N80 steel surface, leading to the formation of a protective film to decrease the corrosion rate.

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来源期刊

腐蚀科学与防护技术 Chemical Engineering-Chemical Engineering (all)

CiteScore

0.60

自引率

0.00%

发文量

2399

期刊介绍： Corrosion Science and Protection Technology is approved by the General Administration of Press and Publication of the State Council, the Chinese Academy of Sciences, the Chinese Academy of Sciences Institute of Metals organized by the domestic and international public circulation of national periodicals metal surface treatment academic journals. The journal is a professional and technical publication. It reports the scientific and technological achievements in the field of metal corrosion and protection, and publishes research reports, reviews, technical reports, research briefs, failure analysis, experience exchange, etc. The readers are engaged in the field of metal corrosion and protection. The target readers are scientific and technological personnel engaged in metal corrosion and protection and teachers and students of related professional colleges and universities. Corrosion Science and Protection Technology is indexed in CSCD, CSTPCD, CA,MA,SA and other authoritative databases.