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THE APPLICATION OF ENA FOR COMPARISON OF PROTECTIVE PERFORMANCE OF ZRP MODIFIED BY COMBINATION OF ZN DUST WITH ALUMINIUM OR CARBON TYPE FILLERS

1 EREMIÁŠ Boleslav
Co-authors:
1 MINDOŠ Lubomír 1 TUREK Libor
Institution:
1 SVÚOM Ltd., Prague, Czech Republic, EU, eremias@svuom.cz
Conference:
29th International Conference on Metallurgy and Materials, Brno, Czech Republic, EU, May 20 - 22, 2020
Proceedings:
Proceedings 29th International Conference on Metallurgy and Materials
Pages:
683-688
ISBN:
978-80-87294-97-0
ISSN:
2694-9296
DOI:
https://doi.org/10.37904/metal.2020.3543
Published:
27th July 2020
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
448 views / 277 downloads
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Abstract

The possible effects on the protective performance of ZRP modified by combination of Zn dust with aluminium or carbon type fillers were investigated using electrochemical noise analysis (ENA). The role of different oxygen diffusion characteristics (identified on tested coating systems with ENA) on delamination tendency was tested during 168 hrs immersion tests in 0.05 M NaCl. It was shown the protective performance of tested type of coating systems can be changing with immersion time rather differently in relation to different ability of polymer matrix with the Zn/Al or Zn/C particles combination for oxygen transport to the coating/steel interface.

Keywords: Painting system, Zn pigment, aluminium filler, carbon filler, electrochemical noise analysis

© 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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