ISRN Corrosion
Volume 2014, Article ID 979323, 7 pages
http://dx.doi.org/10.1155/2014/979323
Development and Performance Evaluation of Corrosion Resistance Self-Healing Coating
Research and Development, Tata Steel Ltd., Jamshedpur 831001, India
Received 6 February 2014; Accepted 25 March 2014; Published 23 April 2014
Academic Editors: M. Aparicio and A. Hermann
Copyright © 2014 Akshya Kumar Guin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
Polymer based nanocapsule was developed using core-cell approach, where the core material was methyl diphenyl diisocyanate and the cell material was urea-formaldehyde. The synthesized capsules of 100 to 800 nm size were incorporated into sol-gel matrix to prepare a final coating for steel protection. This coating was found protecting the steel at the damage or crack locations in 3.5% NaCl solution. SEM micrographs confirmed healing of the coating at the damage or crack points.