The effect of aminated graphene oxide nanocomposite based on benzidine-zinc oxide on the corrosion resistance of cathode electrocoatings

In this study, graphene oxide is functionalized with benzidine and zinc oxide nanoparticles to improve adhesion and corrosion resistance properties. Nanoparticles were dispersed in an epoxy-based coating and applied as a coating on steel panels. The corrosion resistance of nano composite coatings was evaluated by salt spray test during 45 days of exposure. The results showed that the anti-corrosion performance of the coating containing 0.01% graphene oxide containing amine-zinc oxide with a penetration depth of 1.2 mm from scratch showed the highest corrosion resistance. The results of the salt spray and EIS tests show that with the increase of nanoparticles up to 0.01%, the anti-corrosion properties increased.