Selvaraj, M. and Maruthan, K. and Venkatachari, G. (2006) Studies on enhancement of surface durability for steel surface by camphor oil modiWed epoxy polyamide coating. Corrosion Science, 48 (12). pp. 4365-4377. ISSN 0010-938X

PDF Restricted to Registered users only Download (501Kb) | Request a copy

Abstract

Epoxy polyamide coatings are generally used to protect mild steel structures from corrosive atmosphere due to their better adhesion over under prepared surface and eVective barrier protection. But the coating has the ability to disintegrate due to UV radiation and high humidity condition. To improve the weatherability and chemical resistance performance of epoxy polyamide, there is a need to modify it with suitable cross linking agent. In this work, it has been found that camphor oil at 5wt.% as the optimum level to protect the mild steel structures from corrosive electrolyte. Further the impedance study has shown that the resistance exerted by the Camphor oil incorporated coating in 0.5M NaCl solution after 60 days is 3£107-cm2 where as the resistance of the coating without this modiWer is 3£106-cm2. The FTIR spectral study indicates that the formation of ether linkages in the dried Wlm and also the other functional groups present in the epoxy polyamide polymer is completely disappeared in the modiWed coating. Similarly the TG and DTA analysis showed that considerable shift in the degradation temperature has been noticed for the polymer coating with modiWer.

Item Type:	Article
Uncontrolled Keywords:	Organic coatings; Steel; EIS; IR spectroscopy; Polymer coatings
Subjects:	Corrosion Science and Engineering
Divisions:	UNSPECIFIED
Depositing User:	ttbdu cecri
Date Deposited:	06 Apr 2012 15:18
Last Modified:	06 Apr 2012 15:18
URI:	http://cecri.csircentral.net/id/eprint/585

Actions (login required)

View Item