Journal
PROGRESS IN ORGANIC COATINGS
Volume 66, Issue 2, Pages 113-117Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2009.06.008
Keywords
Moisture paint; PANI; Steel; Corrosion; EIS; FTIR; Salt spray test
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Application of paint coatings on wet surfaces is rather difficult due to poor adhesion of coatings. For painting of wet surfaces, moisture curable coating systems based on epoxy resin and ketimine are found to be useful. Hence a study has been made on the corrosion protection ability of coating on wet surfaces using epoxy resin, ketimine and polyaniline. Paints with 20-30% PVC were prepared and applied over the wet steel surface and the corrosion protection performance of the coating was found out by salt spray and electrochemical impedance spectroscopic techniques. Coating with 20% PVC is found to offer very high protection since the impedance values are remained at greater than 10(9) Omega cm(2) after immersion and salt spray tests. (C) 2009 Elsevier B.V. All rights reserved.
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