| 植物提取物自组装膜在盐酸中对Q235钢的缓蚀作用 |
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| 引用本文： | 陈文,黄德兴,韦奉.植物提取物自组装膜在盐酸中对Q235钢的缓蚀作用[J].电镀与涂饰,2020(7):425-430. |
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| 作者姓名： | 陈文 黄德兴 韦奉 |
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| 作者单位： | 楚雄师范学院化学与生命科学学院;国家石油天然气管材工程技术研究中心 |
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| 摘 要： | 以铁线蕨植物提取物(ACE)为成膜物质,在Q235钢表面自组装得到缓蚀膜。通过极化曲线和电化学阻抗谱测试研究了该自组装膜对Q235钢在1 mol/L HCl溶液中的缓蚀性能。结果表明,该自组装膜对Q235钢的阴、阳极腐蚀反应均有抑制作用,可明显减缓Q235钢在盐酸溶液中的腐蚀,且缓蚀作用随ACE质量浓度的增大而增强。ACE分子在Q235钢表面的吸附遵从Langmuir和Frumkin吸附模型,为单分子层吸附,吸附分子之间存在横向吸引力。
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| 关 键 词： | 钢 铁线蕨 提取物 自组装膜 缓蚀 盐酸 |
Corrosion inhibition of self-assembled plant extract film on Q235 steel in hydrochloric acid |
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| CHEN Wen,HUANG Dexing,WEI Feng.Corrosion inhibition of self-assembled plant extract film on Q235 steel in hydrochloric acid[J].Electroplating & Finishing,2020(7):425-430. |
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| Authors: | CHEN Wen HUANG Dexing WEI Feng |
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| Affiliation: | (Department of Chemistry and Life Science,Chuxiong Normal University,Chuxiong 675000,China) |
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| Abstract: | A corrosion inhibitive film was formed by self-assembly with the extract of adiantum capilliaire(ACE)as film-forming agent on Q235 steel surface.The corrosion inhibition performance of the self-assembled plant film on Q235 steel in 1 mol/L HCl solution was studied by polarization curve measurement and electrochemical impedance spectroscopy.The results indicated that the self-assembled film could effectively inhibit the corrosion of Q235 steel through retarding both anodic and cathodic reactions during corrosion process,and its inhibition performance was enhanced with the increase of mass concentration of ACE.The ACE molecules adsorb on Q235 steel in a monolayer structure,following the Langmuir and Frumkin models.There are lateral attraction among the adsorbed molecules. |
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| Keywords: | steel adiantum capilliaire extract self-assembled film corrosion inhibition hydrochloric acid |
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