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纳米SiO2改性环氧涂层电化学阻抗谱研究

, PP. 125-132

Keywords: 纳米SiO2,环氧涂层,防腐性能,电化学阻抗谱

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Abstract:

通过共混法用纳米SiO2对环氧涂层进行改性,采用电化学阻抗谱(EIS)研究浸泡于3.5mass%NaCl溶液中的涂层/金属电极体系电化学行为;建立了四种等效电路阻抗模型对EIS数据进行拟合,通过分析电化学参数的变化规律表征了体系的腐蚀行为;从Bode图选取了能直观反映涂层保护性能且误差小的高频区参数,研究了涂层防腐性能的快速评价方法.

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