| 防锈颜料三聚磷酸铝作用机理的EIS研究 |
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| 引用本文： | 刘宏伟,刘亚洲.防锈颜料三聚磷酸铝作用机理的EIS研究[J].中国腐蚀与防护学报,1997,17(3):215-220. |
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| 作者姓名： | 刘宏伟 刘亚洲 |
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| 作者单位： | 金属腐蚀与防护国家重点实验室,中科院金属腐蚀与防护 |
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| 基金项目： | 中国科学院百人计划项目 |
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| 摘 要： | 利用电化学阻抗技术研究了含有活性防锈颜料三聚磷酸铝的环氧涂层的耐蚀性。当涂层中加入２０％的三聚磷酸铝时，涂层的耐蚀性能最好，并以此为代表探讨了含有活性防锈颜料的有机涂层的作用机理。
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| 关 键 词： | 三聚磷酸铝 防锈颜料 电化学阻抗 防锈 EIS |
AN EIS INVESTIGATION OF THE MECHANISM OF ALUMINUM POLYPHOSPHATE AS ANTI-RUST PIGMENT |
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| LIU Hongwei XU Gang SONG Guangling LIN Haichao CAO Chu''nan.AN EIS INVESTIGATION OF THE MECHANISM OF ALUMINUM POLYPHOSPHATE AS ANTI-RUST PIGMENT[J].Journal of Chinese Society For Corrosion and Protection,1997,17(3):215-220. |
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| Authors: | LIU Hongwei XU Gang SONG Guangling LIN Haichao CAO Chu'nan |
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| Abstract: | An investigation of the corroison prevention performance of epoxy coating containing aluminum polyphosphate was conducted using electrochemical impedance spectroscopy (EIS). When the weight percentage of aluminum polyphosphate in coating reached 20%, the epoxy coating exhibited the best performance, and the mechanism of the active anti-rust pigment was discussed. For the study of paint formulation EIS presented consistent conclusions with those from seawater immersion testing. The complicated time dependence of EIS plots indicated that the corrosion control step of metal under coating changed from diffusion controlled step to electrochemical reaction controlled step. |
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| Keywords: | Aluminum polyphosphate Anti-rust pigment Electrochemical impedance spectra (EIS) Diffusion controlled step Electrochemical reaction controlled step |
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