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Hybrid nanocomposite coatings for corrosion protection of low carbon steel: A substrate-integrated and scalable active–passive approach

Published online by Cambridge University Press:  11 March 2011

Tapan K. Rout ,
Anil V. Gaikwad ,
Vincent Lee  and
Sarbajit Banerjee
Tapan K. Rout*
Affiliation:
Research, Development and Technology, Tata Steel Group (Europe), 1760-Ijmuiden, The Netherlands
Anil V. Gaikwad*
Affiliation:
Research, Development and Technology, Tata Steel Group (Europe), 1760-Ijmuiden, The Netherlands
Vincent Lee
Affiliation:
Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260-3000
Sarbajit Banerjee*
Affiliation:
Department of Chemistry, University at Buffalo, The State University of New York, Buffalo, NY 14260-3000
*
a)Address all correspondence to these authors. e-mail: tapan-kumar.rout@corusgroup.com
b)e-mail: gaikwad.anil@corusgroup.com
c)e-mail: sb244@buffalo.edu
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Abstract

A facile, efficacious, and practical multifunctional paradigm has been developed for imparting corrosion resistance to low carbon steel based on the direct in situ growth of carbon nanofibers (CNF) onto steel substrates followed by infusion of a polymer matrix. The polymer layer locks into place between the nanofibers, simultaneously preventing coating delamination and imparting unprecedented surface passivation properties. The novel hybrid nanocomposite coatings maintain structural integrity even after 30 days of exposure to saline corrosive environments, indicating unprecedented corrosion protection derived from the redox-active nature of the CNF fillers and their excellent dispersion within the polymer matrix. These remarkable coating properties are further enhanced by the strong adhesion of the host polymer to the underlying steel substrate.

Keywords

NanostructureCorrosionPolymer
Type
Articles
Information
Journal of Materials Research , Volume 26 , Issue 6 , 28 March 2011 , pp. 837 - 844
Copyright
Copyright © Materials Research Society 2011

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