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Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention

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Title: Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention
Authors: Ryu, Haku Browse this author
Sheng, Nan Browse this author
Ohtsuka, Toshiaki Browse this author →KAKEN DB
Fujita, Sakae Browse this author
Kajiyama, Hiroshi Browse this author
Keywords: A. Aluminum
A. Zinc
B. IR spectroscopy
B. Raman spectroscopy
C. Polymer coating
Issue Date: Mar-2012
Publisher: Elsevier
Journal Title: Corrosion Science
Volume: 56
Start Page: 67
End Page: 77
Publisher DOI: 10.1016/j.corsci.2011.11.011
Abstract: For corrosion protection of 55% Al–Zn-coated steel, a dense polypyrrole (PPy) film is electrochemically formed on 55% Al–Zn-coated steel in an acidic tartrate solution under constant current control. The film potentially consists of an inner layer of aluminium and/or zinc oxide and an outer PPy layer doped with tartrate anions. The PPy layer can maintain passivation of 55% Al–Zn-coated steel in a 3.5 wt.% NaCl aqueous solution and protected the steel for several hours. The doping of molybdate anions into the PPy–tartrate film greatly improved the film’s protective properties.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 大塚 俊明

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