Electropolymerized coatings of poly(o-anisidine) and poly(o-anisidine)-TiO2 nanocomposite on aluminum alloy 3004 by using the galvanostatic method and their corrosion protection performance

Authorsیاسر جعفری اریسمانی,مهدی شبانی نوش آبادی,سید مهدی قریشی
JournalPolymers for advanced technologies
Page number279
Volume number25
IFثبت نشده
Paper TypeFull Paper
Published At2013-12-02
Journal GradeScientific - research
Journal TypeElectronic
Journal CountryIran, Islamic Republic Of
Journal IndexJCR

Abstract

Poly(o-anisidine) (POA) and poly(o-anisidine)-TiO2 (POA-TiO2) nanocomposite coatings on aluminum alloy 3004 (AA3004) have been investigated by using the galvanostatic method. The electrosynthesized coatings were characterized by FT - IR spectroscopy, XRD, SEM - EDX and SEM. The corrosion protection performance of POA and POA-TiO2 nanocomposite coatings was investigated in the 3.5% NaCl solution by using potentiodynamic polarization technique and electrochemical impedance spectroscopy. The results show that the corrosion rate of the nanocomposite coatings is about 900 times lower than the bare AA3004 under optimal conditions.

tags: aluminum; nanocomposite; polymer coatings; corrosion; EIS