Comparative corrosion resistance and tribological behaviors of epoxy composite coatings reinforced w

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  A work to reinforce epoxy resin with different filler shapes served by fullerene C60 and graphene (G), improving the tribological and anti-corrosion performances, was investigated in this article.Fristly, functionalization C60 (EC60) and functionalization G (EG) were achieved by chemical modification using 3-aminopropyltriethoxysilane (KH660) and subsequently incorporated into epoxy resin to investigate the anti-corrosion and tribological performances of epoxy composite coatings.The results indicated that the functional groups had been grafted on the surface of C60 and G.The composite coatings showed higher anti-corrosion and a lower friction coefficient, wear traces area owing to the balance of barrier, reinforcement, and lubrication properties of nanofillers and cracks generated by them, relative to that of neat epoxy, and optimal additive concentration of EC60 and EG all were 0.5wt%.Finally, this article opens up that EC60/ED coatings exhibited worse corrosion resistance ability but better tribological performance compared with EG/ED coatings due to the different shapes of nanofillers.Different anti-corrosion and tribological mechanisms were analyzed at micro-scale based on the above results.
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