期刊文献+

防锈颜料Pb_3O_4在有机涂层中作用机理的EIS分析 被引量:3

EIS INVESTIGATION FOR PERFORMANCE MECHANISM OF PIGMENT Pb_3O_4 IN ORGANIC COATING
下载PDF
导出
摘要 利用电化学交流阻抗方法研究了防锈颜料红丹(Pb_3O_4)在环氧涂层中的作用。通过对涂层交流阻抗图谱解析,提出其特征等效电路,并探讨Pb_3O_4在涂层中的作用机理。实验表明Pb_3O_4是一种典型的钝化型防锈颜料,浸泡初期以钝化作用为主,后期则以皂化作用为主。 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.
出处 《中国腐蚀与防护学报》 CAS CSCD 1998年第1期52-56,共5页 Journal of Chinese Society For Corrosion and Protection
基金 中科院"百人计划"资助项目
关键词 EIS 等效电路 钝化 皂化 红丹 环氧涂层 EIS, Equivalent circuit, Passive action, Saponification, Oxygen definite-layer diffusion control, Metal dissolution control
  • 相关文献

参考文献7

二级参考文献7

共引文献72

同被引文献11

引证文献3

二级引证文献17

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部