▎ 摘　　要

Graphene due to its two-dimensional structure, large surface area and high impermeability is regarded as an excellent potential filler for the development of anti-corrosive coatings by creating a natural barrier to the diffusion of electrolytes. Epoxy polymers are widely used as protective coatings, and in the present study, commercially-available graphene nanoplatelets (GNPs) were dispersed into an epoxy resin using three-roll milling (3RM). The GNP-modified epoxy was coated onto mild steel substrates, and cured. The coated panels were immersed into a corrosive environment of 3.5 wt% NaCl aqueous solution for 4-5 days. The adhesion of the coatings to the substrate was then measured using a cross-cut test. The addition of higher loadings of GNPs resulted in a deteriorating corrosion performance, with the 1.5 wt% and 3 wt% coatings exhibiting 53% and 91% damage by area, respectively, after the cross-cut tests. The unmodified epoxy and low GNP content coatings (