Please use this identifier to cite or link to this item: https://doi.org/10.1016/S0010-938X(02)00144-0
Title: Corrosion protection by multilayered conducting polymer coatings
Authors: Tan, C.K.
Blackwood, D.J. 
Keywords: Mild steel
Pitting corrosion
Polarization
Polymer coating
Stainless steel
Issue Date: Mar-2003
Citation: Tan, C.K., Blackwood, D.J. (2003-03). Corrosion protection by multilayered conducting polymer coatings. Corrosion Science 45 (3) : 545-557. ScholarBank@NUS Repository. https://doi.org/10.1016/S0010-938X(02)00144-0
Abstract: Multilayered coatings, consisting of combinations of the conducting polymers polyaniline (Pani) and polypyrrole (Ppy), were galvanostatically deposited on to both carbon steel and stainless steel. Potentiodynamic polarisation was used to assess the ability of these copolymers to provide an effective barrier to corrosion in chloride environments. For carbon steel the performance of these multilayered coatings on carbon steel were not sufficiently better than for single Pani coatings to justify their more complicated deposition procedures. However, in the case of stainless steels the new multilayered coatings proved to be significantly better than previously reported single Pani coatings, especially at protecting against pitting corrosion. It was found that the degree of protection was a function of the deposition order of the copolymer, with films consisting of a Pani layer over the top of a Ppy layer yielding the best results. Scanning electronic microscopy observations and adhesion measurements, along with the electrochemical data suggested that the ability of a conducting polymer film to act as electronic and chemical barriers were more important in providing corrosion protection than its ability to act as a physical barrier. © 2002 Elsevier Science Ltd. All rights reserved.
Source Title: Corrosion Science
URI: http://scholarbank.nus.edu.sg/handle/10635/106994
ISSN: 0010938X
DOI: 10.1016/S0010-938X(02)00144-0
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

272
checked on Oct 16, 2021

WEB OF SCIENCETM
Citations

261
checked on Oct 8, 2021

Page view(s)

119
checked on Oct 14, 2021

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.