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INTERPRETATION OF ENA DATA FROM ACCELERATED EXPOSURE OF ZN AND MIO PIGMENTED EPOXY COATINGS AS METHOD BASED ON MODELLING OF COATINGS ELECTRICAL PROPERTIES RELATED TO CORROSION OF THE SUBSTRATE

1 EREMIÁŠ Boleslav
Co-authors:
1 MINDOŠ Lubomír 1 TUREK Libor
Institution:
1 SVÚOM Ltd., Prague, Czech Republic, EU, eremias@svuom.cz
Conference:
31st International Conference on Metallurgy and Materials, Orea Congress Hotel Brno, Czech Republic, EU, May 18 - 19, 2022
Proceedings:
Proceedings 31st International Conference on Metallurgy and Materials
Pages:
469-473
ISBN:
978-80-88365-06-8
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2022.4417
Published:
1st November 2022
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
350 views / 183 downloads
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Abstract

The possible differences in the protective performance of Zn and MIO pigmented epoxy coatings for different times of exposure performed during 533 hrs in 0.05 M NaCl were confirmed by new interpretation of ENA data in combination with single frequency (1 kHz) impedance test results. By this approach changes of resistivity and dielectric constant (identified on tested coating system at different times of exposure) can be related to delamination tendency as well as changing possibilities for new defects formation in tested type of coating for different time of exposure.

Keywords: Modified ZRP, ENA, SIFT, water uptake, interfacial delamination

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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