| 氯离子在有机涂层中的渗透及涂层失效过程的电化学阻抗谱研究 |
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| 引用本文： | 陈家才,王旭东,孙冬柏.氯离子在有机涂层中的渗透及涂层失效过程的电化学阻抗谱研究[J].材料工程,2011(6):52-57. |
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| 作者姓名： | 陈家才 王旭东 孙冬柏 |
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| 作者单位： | 北京科技大学腐蚀与防护中心;北京市腐蚀磨蚀与表面技术重点实验室; |
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| 基金项目： | 国家科技支撑计划(2007BAB27B05); 北京市科技新星计划(2008A029); 北京市教委共建项目(SYS100080419) |
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| 摘 要： | 采用渗透实验和电化学阻抗谱(EIS)分别研究了氯离子在氟碳涂层游离膜中的渗透规律以及不同温度、不同溶液对复合涂层体系耐蚀性能的影响.渗透实验结果表明:氯离子在氟碳涂层游离膜中的扩散存在一个时间临界点.在临界点之前,氯离子在游离膜两侧浓差作用下迅速达到动态平衡;在临界点之后,氯离子在游离膜中的扩散则呈线性增加趋势,并且氯...
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| 关 键 词： | 氟碳涂料 游离膜 电化学阻抗谱 |
Penetration of Chlorine Ion in Organic Coating and Deterioration Process by Electrochemical Impedance Spectroscopy |
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| CHEN Jia-cai,WANG Xu-dong,SUN Dong-bai.Penetration of Chlorine Ion in Organic Coating and Deterioration Process by Electrochemical Impedance Spectroscopy[J].Journal of Materials Engineering,2011(6):52-57. |
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| Authors: | CHEN Jia-cai WANG Xu-dong SUN Dong-bai |
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| Affiliation: | CHEN Jia-cai1,WANG Xu-dong1,2,SUN Dong-bai1(1 Center for Corrosion and Protection,University of Science and Technology Beijing,Beijing 100083,China,2 Beijing Key Laboratory for Corrosion-Erosion and Surface Technology,China) |
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| Abstract: | The penetration law of chloride ion in the fluorocarbon separate coating and the deterioration process of fluorocarbon coating were investigated by permeability test and EIS,respectively.The results show that the diffusion of chlorine ion in fluorocarbon separate coating have a time critical point.The spread of chlorine ion in coating reach a dynamic balance stage before the critical point,then the chlorine ion in coatings diffusion present linear increase trend.The permeability of chlorine ion in fluorocar... |
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| Keywords: | fluorocarbon coating separate coating electrochemical impedance spectroscopy |
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