The effect of counter anions on corrosion resistance of steel covered by bi-layered polypyrrole film

Kowalski, Damian; Ueda, Mikito; Ohtsuka, Toshiaki

Corrosion Science, 2007, 49(8), 3442-3452

Permalink : https://hdl.handle.net/2115/29744

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アクセス権
open access
URI
https://hdl.handle.net/2115/29744
タイトル
The effect of counter anions on corrosion resistance of steel covered by bi-layered polypyrrole film
著者
Kowalski, Damian ; Ueda, Mikito ; Ohtsuka, Toshiaki
著者名
Kowalski, Damian
著者名
Ueda, Mikito
e-Rad_Researcher
20113532
著者名
Ohtsuka, Toshiaki
言語
英語
キーワード
A. Polypyrrole
A. Conductive polymer
B. GD-OES
C. Corrosion protection
C. Passivation
発行日
2007-08
出版者
Elsevier Ltd.
収録物名
Corrosion Science
巻(号)
49(8)
ページ
3442-3452
抄録
The bi-layered polypyrrole (PPy) coatings were investigated for corrosion prevention of a carbon steel. The inner layer was doped with the Keggin structure anions of PMo12O3-40(PMo12) and HPO2-4 anions for stabilization of the passive oxide film at the metal–polymer interface, and the outer layer was doped with four organic anions of dihydroxynaphthalenedisulfonate (DHNDS), naphthalenedisulfonate (NDS), anthraquinonedisulfonate (AnqDS) or dodecylsulfate (DoS) for inhibition of the decomposition and release of PMo12. The corrosion tests were performed in 3.5 wt.% NaCl aqueous solution. The corrosion resistance of the steels covered by the bi-layered PPy films was found in the following order: PPy–PMo12/PPy–DHNDS < PPy–PMo12/PPy–NDS < PPy–PMo12/AnqDS < PPy–PMo12/PPy–DoS. The performance of corrosion protection related to the oxidized state of the polymer was discussed.
資源タイプ
学術雑誌論文
出版タイプ
Accepted Manuscript
PISSN
0010-938X
関連情報
URI
http://www.sciencedirect.com/science/journal/0010938X
関連情報 (isVersionOf)
出版社版DOI
https://doi.org/10.1016/j.corsci.2007.03.007