| 不同聚合度聚乙二醇对A30碳钢的缓蚀性能 |
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| 引用本文： | 陈丽,张冰如,李风亭.不同聚合度聚乙二醇对A30碳钢的缓蚀性能[J].化学研究,2008,19(1):90-94. |
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| 作者姓名： | 陈丽 张冰如 李风亭 |
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| 作者单位： | 同济大学,环境科学与工程学院,污染控制与资源化研究国家重点实验室,上海,200092 |
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| 摘 要： | 通过开路电位测量法、动电位极化曲线法和电化学阻抗谱法研究了表面活性剂聚乙二醇对A30碳钢的缓蚀作用，初步推测了其缓蚀机理．分别选取聚合度为600、2000、4000、6000的四种聚乙二醇进行实验，结果表明，聚乙二醇对碳钢的最高缓蚀率接近90％．聚乙二醇分子量对缓蚀作用有明显影响，相同浓度时聚合度越大，缓蚀性能越强．三种方法得到的结果具有同一性．
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| 关 键 词： | 聚乙二醇 聚合度 开路电位 极化曲线 电化学阻抗谱 |
| 文章编号： | 1008-1011（2008）01-0090-05 |
| 收稿时间： | 2007-08-25 |
| 修稿时间： | 2007年8月25日 |
Corrosion Inhibition of Polyethylene Glycols of Different Molecular Weight on Carbon Steel |
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| CHEN Li,ZHANG Bing-ru,LI Feng-ting.Corrosion Inhibition of Polyethylene Glycols of Different Molecular Weight on Carbon Steel[J].Chemical Research,2008,19(1):90-94. |
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| Authors: | CHEN Li ZHANG Bing-ru LI Feng-ting |
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| Institution: | ( State Key Laboratory of Pollution Control and Resource Retake, College of Environmental Science ＆ Engincering, Tongji University, Shanghai 200092. China) |
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| Abstract: | The corrosion inhibition effect of polyethylene glycols (PEGs) on carbon steel was evaluated by(corrosion potential) OCP,dynamic potential polarization and electrochemical impedance spectroscopy(EIS) techniques.Different molecular weights(600,2 000,4 000,and 6 000) of PEGs were selected to compare their inhibition efficiency.Results showed that PEGs do have inhibition efficiencies on carbon steel and the best inhibition efficiency is up to around 90 %.The inhibition efficiencies are increased by increase of the PEGs' concentration and molecular weight.Results obtained from the three techniques are in good agreements. |
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| Keywords: | polyethylene glycols molecular weight open circuit potential polarization curve electrochemical impedance spectroscopy |
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