Sathiyanarayanan, S. and Azim, S.S. and Venkatachari, G. (2008) Corrosion protection of magnesium alloy ZM21 by polyaniline-blended coatings. Journal of Coatings Technology and Research, 05 (04). pp. 471-477. ISSN 1547-0091

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Abstract

Phosphate-doped polyaniline pigment was prepared by a chemical oxidation method using ammonium persulfate in phosphoric acid media. Fourier transform infrared studies were done to characterize the pigment. The magnesium alloy ZM 21 was coated with polyaniline-pigmented paint, based on an epoxy binder, and the corrosion performance of the coating was studied by potential measurements and electrochemical imopedance spectroscopy in 0.1% and 0.5% NaCl solutions. The results were compared with strontium chromate and filler material-pigmented coatings. It was found that the coating containing polyaniline provided similar protection for the magnesium alloy as that offered by chromate-pigmented paint

Item Type:	Article
Uncontrolled Keywords:	Magnesium alloy; Polyaniline; Coating; Epoxy; Electrochemical impedance spectroscopy
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	05 Apr 2012 15:47
Last Modified:	19 Oct 2012 11:04
URI:	http://cecri.csircentral.net/id/eprint/2461

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