Changes in Admittance and Internal Structure of Coating Films by Environmental Testing

被引：0

作者：

Horie, Toshio ^{[1
,2
]}

Kitahara, Gaku ^{[1
]}

Tani, Hirochika ^{[2
]}

Asai, Mikio ^{[2
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Nagakute 4801192, Japan

[2] Toyota Motor Co Ltd, Toyota 4718571, Japan

来源：

MATERIALS TRANSACTIONS | 2024年 / 65卷 / 10期

关键词：

resin; electrochemical impedance spectroscopy; corrosion test; admittance;

D O I：

10.2320/matertrans.MT-C2024006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The impedance of the paint film varied depending on the environmental test. It is considered that the impedance spectrum of the coating films changed by the effects of water content in the paint film, polymer structure, and elements that penetrated the paint film. However, no clear relationship could be found between the impedance spectrum of the coating film and its internal structure. To understand the change in the impedance spectrum, we performed D-SIMS and AFM-IR analyses on the paint films after the environmental test. The results suggest that the admittance spectra may reflect the state of infiltrated moisture and elements into the coating films.

引用

页码：1287 / 1292

页数：6

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