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首页> 外文期刊>Corrosion Engineering, Science and Technology >Role of polyethylene glycol tert-octylphenyl ether on corrosion behaviour of mild steel in acidic solution
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Role of polyethylene glycol tert-octylphenyl ether on corrosion behaviour of mild steel in acidic solution

机译：聚乙二醇叔辛基苯基醚对低碳钢在酸性溶液中腐蚀行为的作用

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摘要

In recent years, polymeric surfactants have been investigated as efficient corrosion inhibitors for iron in acidic media. In this study, the inhibition performance of polyethylene glycol tert-octylphenyl ether (Triton X-114) for the corrosion of iron in 1M HCl solution has been evaluated. Potentiodynamic polarisation, electrochemical impedance spectroscopy, linear polarisation resistance techniques and long term experiments were used to achieve electrochemical studies. The effect of polyethylene glycol tert-octylphenyl ether on cathodic hydrogen evolution reaction was also investigated. The inhibition efficiency has increased with increasing inhibitor concentration. The standard free energy of adsorption (ΔG°ads) was calculated. The inhibitor adsorbed on the iron surface was found to be in a good agreement with the Langmuir adsorption isotherm. Polyethylene glycol tert-octylphenyl ether has improved the passivation characteristics of mild steel and inhibited the corrosion effectively in short time tests. The corrosion behaviour of mild steel was also supported by micrographing of the iron surfaces in 1M HCl solution with or without inhibitor.
机译：近年来，已经研究了聚合物表面活性剂作为酸性介质中铁的有效腐蚀抑制剂。在这项研究中，已评估了聚乙二醇叔辛基苯基醚（Triton X-114）对1M HCl溶液中铁的腐蚀的抑制性能。电位动力学极化，电化学阻抗谱，线性极化电阻技术和长期实验被用于实现电化学研究。还研究了聚乙二醇叔辛基苯基醚对阴极析氢反应的影响。抑制效率随抑制剂浓度的增加而增加。计算了标准的吸附自由能（ΔG° ads ）。发现吸附在铁表面的抑制剂与Langmuir吸附等温线高度吻合。聚乙二醇叔辛基苯基醚改善了低碳钢的钝化特性，并在短时间测试中有效地抑制了腐蚀。通过在有或没有抑制剂的1M HCl溶液中对铁表面进行显微照相，也可以支持低碳钢的腐蚀行为。

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  • 来源
    《Corrosion Engineering, Science and Technology》 |2009年第4期|304-311|共8页
  • 作者

    Sürme Y.; Gürten A. Ali;

  • 作者单位

    Department of Chemistry, Faculty of Science and Arts, Nigde University, Nigde 51200, Turkey;

    Department of Chemistry, Faculty of Science and Arts, Nigde University, Nigde 51200, Turkey, Email: agurten@nigde.edu.tr;

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