Enhancing the Anticorrosion Performance of Graphene–Epoxy\nCoatings by Biomimetic Interfacial Designs

Abstract

The high conductivity of graphene\n(G) results in G-based composite\ncoatings with unacceptable corrosion-promotion activity (CPA), which\ngreatly limits their applications in metal protection. Herein, a bioinspired\ngraphene–epoxy (B-G-EP) coating with nacre-like structure is\nconstructed to investigate the interfacial structure-dependent anticorrosion\nof coatings. The results demonstrate that the highly aligned structure\nof B-G-EP resolves the contradiction between the anticorrosion capability\nand CPA of G, which breaks the limitation of the “blending\nrule” and provides insight into the preparation of high-performance\nG-based coatings through biomimetic strategies.