EIS INVESTIGATION FOR PERFORMANCE MECHANISM OF PIGMENT Pb_3O_4 IN ORGANIC COATING

J Chin Soc Corr Pro

1998, Vol. 18

Issue (1): 52-56 DOI:

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EIS INVESTIGATION FOR PERFORMANCE MECHANISM OF PIGMENT Pb_3O_4 IN ORGANIC COATING

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Abstract EIS investigation of epoxy coating containing anti-rust pigment Pb3O4 was made. On the basis of various specific equivalent circuits for the coating, the performance mechanism of Pb3O4 in the organic coating was discussed. The EIS results showed that Pb3O4 was a typical passive pigment. At the initial stage of immersion , Pb3O4 dissolved and then diffused towards the metal/coating interface. It resulted in the formation of passive film and anodic dissolution of the metal was inhibited. Later the passive film might be destroyed and a saponification film could form. At that time the corrosion rate determining step was changed from metal dissolution control to oxygen definite-layer diffusion control.

Key words: EIS Equivalent circuit Passive action Saponification Oxygen definite-layer diffusion control Metal dissolution control

Received: 25 February 1998

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LIU Hong-wei XU Gang SONG Guang-ling LIN Hai-chao CAO Chu-nan(State Key Laboratory of Corrosion & Protection; Institute of Corrosion and Protection for metals;Chinese Academy of Sciences; Shenyang 110015)MENG Xian-lin PANG Guo-you ZHANG Hong-zhi DONG Jian. EIS INVESTIGATION FOR PERFORMANCE MECHANISM OF PIGMENT Pb_3O_4 IN ORGANIC COATING. J Chin Soc Corr Pro, 1998, 18(1): 52-56.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1998/V18/I1/52

1 Mansfeld F.Corrosion,1988,44(12):856
2 张鉴清.中国腐蚀与防护学报,1996,16(3):175
3 梁峰,张鉴清,刘宏伟.中国腐蚀与防护学报,1993,13(1):70
4 刘宏伟.腐蚀科学与防护技术,1992,4(3):144
5 曹楚南.腐蚀电化学,北京:化学工业出版社,1990,p.112
6 虞兆年.防腐蚀涂料和涂装,北京:化学工业出版社,1994,p.71
7 刘宏伟等.中国腐蚀与防护学报,1997,17(3):215
8 虞兆年.防腐蚀涂料和涂装,北京:化学工业出版社,1994,P.738

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