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ISSN: 2637-4579

Open Access Journal of Biomedical Engineering and Biosciences

Research Article(ISSN: 2637-4579)

Performance Evaluation of Epoxy Coatings Containing Different Fillers in Natural and Simulated Environmental Conditions for Corrosion Resistance

Volume 3 - Issue 4

Muhammad ANS1*, A Farooq2, MJK Lodhi2 and KM Deen2,3

  • Author Information Open or Close
    • 1Ecole des Mines de Saint-Etienne, France
    • 2Department of Metallurgy and Materials Engineering, University of the Punjab, Pakistan
    • 3Department of Materials Engineering, University of British Columbia, Canada

    *Corresponding author: Muhammad Ans, Department of materials science, Ecole des Mines de Saint-Etienne, France

Received: September 25, 2019;   Published: October 10, 2019

DOI: 10.32474/OAJBEB.2019.03.000169

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Abstract

Epoxy coatings are widely applied on steel structures due to their high adhesion strength and corrosion resistant properties. The transient environmental conditions and photo degradation could limit their long-term performance in many outdoor applications. The addition of different types of fillers could significantly change their barrier properties. In this study we investigated the corrosion performance of epoxy coatings on AISI 1040 steel after addition of different inorganic fillers i.e. TiO2, Fe2O3, ZnO and graphite according to ASTM G-50 and ASTM B-117 standards. The effect of various fillers on the adhesion and degradation behavior of epoxy coatings after exposure to atmosphere and saline solutions was estimated by visual inspection and Fourier transform infrared spectroscopy (FTIR). The significant loss in adhesion strength was observed after extended exposure to the ambient conditions. The notable changes in the intensity of IR signatures belonging to the primary amine, ethyl and origin of carbonyl group could be related with the degradation of coatings and were in agreement with the loss in adhesion strength. The relatively little change in the adhesion strength of ZnO containing epoxy coating compared to other fillers suggested its better performance.

Keywords: Epoxy coating; Degradable; Fillers; Salt spray analysis, Corrosion resistance

Abstract| Introduction| Experimental Work| Results & Discussion| Conclusion| Acknowledgement| Conflict of Interest| References|

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