Improvement of Environmentally-Friendly Alkyd Composite Coating with Graphene Oxide

Abstract

In this article, environmentally-friendly alkyd coatings with different graphene oxide (GO) content of 0-1.5 weight percent (wt. %) were prepared for improving mechanical properties, corrosion protection and thermal oxidation resistance of coatings. GO in the coating was characterized by FT-IR. The corrosion resistance of environmentally- friendly alkyd coatings containing GO was investigated by salt fog testing. Effects of GO content on adhesion, flexural strength, relative hardness and thermal oxidation stability of alkyd coatings with and without GO were also examined. GO with the content of 1.2 wt. % significantly improved mechanical properties, corrosion resistance, thermal oxidation resistance of environmentally-friendly alkyd coatings.