Electrochemical Impedance Spectroscopy of Hybrid Epoxy Resin Emulsion Coatings

Rakesh N. Patil, Brihbihari V. Sharma, Prakash A. Mahanwar

Department of Polymer & Surface Engineering, Institute of Chemical Technology, Mumbai, India.

DOI: 10.4236/jmmce.2012.1110104                

Abstract

A hybrid epoxy resin one pack emulsion with acrylate was synthesized for application in the field of corrosion protec- tion. Electrochemical impedance tests were applied to steel specimens coated with hybrid epoxy and tested after im- mersion in 3.5% NaCl solution at room temperature. Results taken from Nyquist and Bode plots as were analyzed by means of software provided with the instrument. Specimens were examined under scanning electron microscope shows a clear rupture and degradation in hybrid epoxy coating after prolonged exposer to salt solution.

Keywords

Hybrid; Epoxy; Electrochemical Impedance Spectroscopy; Coatings

Conflicts of Interest

The authors declare no conflicts of interest.

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