H2S/CO2环境中Gemini表面活性剂对L360钢的缓蚀性能
Corrosion Inhibition Effect of Gemini Surfactants on L360 Steel in Solution Containing H2S/CO2
摘 要
采用静态失重法、动电位极化法和电化学阻抗法研究了三种Gemini表面活性剂12-2-12, 16-2-16和18-2-18在H2S/CO2环境中对L360钢的缓蚀性能, 并探讨了缓蚀机理。研究表明, 在本试验条件下, 三种表面活性剂均表现出一定的缓蚀性能, 其中, 12-2-12效果最优, 16-2-16其次, 18-2-18缓蚀效果不明显。Gemini表面活性剂在金属表面的吸附可减轻腐蚀介质对碳钢的腐蚀。
Gemini表面活性剂
缓蚀剂
吸附
H2S/CO2
Gemini surfactant
inhibitor
adsorption
Abstract
The inhibition effects of three kinds of Gemini surfactants on L360 steel in H2S/CO2 solutions were studied by means of static weight loss method, potentiodynamic polarization curves and electrochemical impedance spectroscopy(EIS). The results revealed that the Gemini surfactants showed different inhibition effects, 12-2-12 was the best one, and the following was 16-2-16, the performance of 18-2-18 was not obivious. The adsorption of Gemini surfactants on steel could reduce the corrosion of carbon steel in corrosive solutions.
中图分类号 TG174.42
所属栏目 试验研究
基金项目
收稿日期 2010/7/28
修改稿日期 2010/8/27
网络出版日期
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备注赵景茂, 教授, 博士生导师,
引用该论文: ZHAO Jing-mao,LAN Xu. Corrosion Inhibition Effect of Gemini Surfactants on L360 Steel in Solution Containing H2S/CO2[J]. Corrosion & Protection, 2011, 32(6): 441
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参考文献
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【5】E1 Achouri M, Kertit S, Gouttaya H M, et al. Corrosion inhibition of iron in 1MHC1 by some Gemini surfactants in the series of alkanediyl-α, ω-bis-(dimethyl tetradecyl ammonium bromide)[J]. Prog Org Coatings, 2001, 43(4):267-273.
【6】Qiu L G, Xie A J, Shen Y H. The adsorption and corrosion inhibition of some cationic Gemini surfactants on carbon steel surface in hydrochloride acid[J]. Corrosion Science, 2005, 47(1):273-278.
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