用电化学交流阻抗技术研究了涂装不同离子选择性涂层的铜电极在３％ＮａＣｌ溶液中的腐蚀行为，根据不同涂装体系的阻抗谱特征，建立了相应的等效电路模型，由阻抗数据解析的结果，讨论了不同离子选择性涂层对铜的防蚀性能．结果表明，离子选择性涂层的组成和结构对铜的腐蚀行为影响很大，由阴离子选择性内层和阳离子选择性外层构成的双极性涂层具有优异的防蚀性能．
Electrochemical impedance spectroscopy(EIS) technique was employed to study the corrosion behaviour of copper painted with the anion selective、 cation selective and bipolar phenolic coatings in 3% NaCl solution. From the impedance spectrum characteristics, the models of equivalent circuit for these different coating systems were established,and the methods for the analysis of experimental impedance diagrams in terms of coating and interface properties were discussed. The research results show that the composition and structure of ion selective coatings have significant influence on corrosion behaviour of copper. The bipolar coating consisting of an anion selective inner layer and a cation selective outer layer possesses excellent corrosion resistance.
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