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

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  • 環境試験による塗膜のアドミタンスと内部構造の変化

Abstract

<p>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 analysis on the paint films after the environmental test. The results suggest that the admittance spectra may reflect the state of infracted moisture and elements into the coating films.</p>

Journal

  • Zairyo-to-Kankyo

    Zairyo-to-Kankyo 72 (9), 243-248, 2023-09-10

    Japan Society of Corrosion Engineering

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