The application of ENA and physico-mechanical tests for evaluation of the protective performance of ZRP modified by combinati on of Zn dust with carbon type fillers

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The application of ENA and physico-mechanical tests for evaluation of the protective performance of ZRP modified by combinati on of Zn dust with carbon type fillers

Popis výsledku v původním jazyce

The possible effects on the protection performance of ZRP modified by combination of Zn dust with carbon nanotubes or other type of carbon fillers were investigated using electrochemical noise analysis (ENA) and physico-mechanical tests. Role of Zn content on the protection performance of this type of ZRP was tested for 40 vol. % Zn and 65 vol. % Zn (on dry film). Results of EN measurements during 168 hrs immersion tests in 0,05 M NaCl as well as of physico-mechanical tests performed after conditioning of coated test panels at air conditioning room (23 ± 2)°C and relative humidity of (50 ± 5)% were compared. The motivation for doing this was to generate supporting evidences and to deepen the understanding of key factors in mechanism of degradation of this type of coatings. Both EN measurements and physico-mechanical tests indicate that coatings containing 40 vol. % Zn in combination with carbon nanotubes provide very good barrier protection resulting in rather good mechanical properties of coatings confirmed by physico-mechanical tests as well as low sensitivity to blistering process and possible delamination in immersion tests. This paper is contained in Proceedings of EUROCORR 2017 (Prague, Czech Republic).

Název v anglickém jazyce

The application of ENA and physico-mechanical tests for evaluation of the protective performance of ZRP modified by combinati on of Zn dust with carbon type fillers

Popis výsledku anglicky

The possible effects on the protection performance of ZRP modified by combination of Zn dust with carbon nanotubes or other type of carbon fillers were investigated using electrochemical noise analysis (ENA) and physico-mechanical tests. Role of Zn content on the protection performance of this type of ZRP was tested for 40 vol. % Zn and 65 vol. % Zn (on dry film). Results of EN measurements during 168 hrs immersion tests in 0,05 M NaCl as well as of physico-mechanical tests performed after conditioning of coated test panels at air conditioning room (23 ± 2)°C and relative humidity of (50 ± 5)% were compared. The motivation for doing this was to generate supporting evidences and to deepen the understanding of key factors in mechanism of degradation of this type of coatings. Both EN measurements and physico-mechanical tests indicate that coatings containing 40 vol. % Zn in combination with carbon nanotubes provide very good barrier protection resulting in rather good mechanical properties of coatings confirmed by physico-mechanical tests as well as low sensitivity to blistering process and possible delamination in immersion tests. This paper is contained in Proceedings of EUROCORR 2017 (Prague, Czech Republic).

Druh

O - Ostatní výsledky

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů