Graphene oxide reinforced epoxy nanocomposites coatings for corrosion protection: a review

Abstract

Abstract Graphene oxide (GO) is a reinforcing filler material used in epoxy resin to make coatings for improving the corrosion resistance of epoxy. The synthesis methods of GO are discussed with their modification methods (covalently and non-covalently). The incorporation of GO in epoxy resin nanocomposites coatings shows the improved corrosion resistance and adhesion strength depends on the processing protocol and aspect ratio of GO. Modification of GO covalently and non-covalently and reinforced in epoxy nanocomposites coatings show the enhanced corrosion protection as compared to pure epoxy and epoxy/GO nanocomposites coatings due to improved dispersion of GO in an epoxy matrix. Inorganic nanofiller modified with GO as hybrid reinforcement in epoxy nanocomposites coatings shows improved corrosion resistance as compared to epoxy/GO nanocomposites. GO/inorganic hybrid filler reinforced in epoxy nanocomposites coatings are promising in terms of applications in the industry for long time corrosion protection.