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Corrosion Protection of Metals by Conductive Polymers III. Improved Performance and Inhibition in NaCl

Published online by Cambridge University Press:  10 February 2011

Wei-Kang Lu ,
Ronald L. Elsenbaumer ,
T. Chen  and
V. G. Kulkarni
Wei-Kang Lu
Affiliation:
Materials Science and Engineering Program, The University of Texas at Arlington, Arlington, TX 76019, elsenbaumer@uta.edu
Ronald L. Elsenbaumer
Affiliation:
Materials Science and Engineering Program, The University of Texas at Arlington, Arlington, TX 76019, elsenbaumer@uta.edu
T. Chen
Affiliation:
Americhem Inc., 225 Broadway East, Cuyahoga Falls, OH 44221
V. G. Kulkarni
Affiliation:
Americhem Inc., 225 Broadway East, Cuyahoga Falls, OH 44221
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Abstract

The use of conducting polymers for corrosion prevention is an area which has gained increasing attention during the last decade [1]. This study explores the use of polyaniline based polymer coatings for corrosion prevention on mild steel. Data on coating degradation and passivation on electrochemically polarized painted metal specimens exposed to acid chloride solutions and artificial seawater at an ambient temperature are presented. A Systematic comparison between controls and designated coated sample sets has been made to demonstrate good corrosion protection efficiency with synergistic effects between conductive polymers and metals by classical DC monitoring techniques. Brief comparisons are made with data from simulated marine exposure. Meanwhile, in separate experiments, electrochemical data were obtained for conductive polymer primer coatings with epoxy top-coat under fully immersed conditions by using electrochemical noise (ECN) monitoring and scanning electrochemical microscopy (SECM) techniques to discover the initial localized corrosion phenomena in order to achieve further understanding of the protection mechanism. Additionally, electrochemical impedance (EIS) spectra were utilized for the assessment of anti-corrosion performance provided by conducting polymers to mild steel.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 488: Symposium J – Electrical, Optical & Magnetic Properties of Organic IV , 1997 , 653
Copyright
Copyright © Materials Research Society 1998

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References

1. Camalet, J. L., Lacroix, J. C., Aeiyach, S., Chane-Ching, K. and Lacaze, P. C., J. Electroanal. Chem., 416, 179 (1996).Google Scholar
2. Ahmad, Naseer and MacDiarmid, A. G., Synth. Met., 78, 103 (1996).Google Scholar
3. Krstajic, N. V., Grgur, B. N., Jovanovic, S. M. and Vojnovic, M. V., Electrochim. Acta, 42, 1685 (1997).Google Scholar
4. Lu, W., Bajak, S. and Elsenbaumer, R. in Handbook of Conducting Polymers, 2nd ed., edited by Stotheim, T. A. (Marcel Dekker, New York, 1997).Google Scholar
5. Simpson, C. H., Ray, C. J. and Skerry, B. S., J. Protect. Coat. Linings, 8, 28 (1991).Google Scholar
6. ASTM B117–90, Annual Book of ASTM Standards, 03.02, 20 (1990).Google Scholar
7. Kulkarni, V. G., unpublished results.Google Scholar
8. Pierret, R. F., Semiconductor Device Fundamentals, (Addison-Wesley, New York, 1996).Google Scholar
9. Kinlen, P., (private communciation).Google Scholar