Corrosion resistance of surface texturing epoxy resin coatings reinforced with fly ash cenospheres and multiwalled carbon nanotubes

The surface texture with different parameters were prepared on the surface of the fly ash cenospheres-multiwalled carbon nanotubes/epoxy coating samples by PDMS template method. The synergistic enhancement of the wettability and corrosion resistance of epoxy coating by the packing reinforcement method and the surface texture enhancement method were studied. It is found that the surface texture greatly enhances the hydrophobic property of resin coating and improves the corrosion resistance of epoxy coating. This study shows that the multi-fillers reinforcement and surface texture technology can perfectly synergy improve the corrosion resistance of epoxy coating from the inside and the surface. • A method for improving the corrosion resistance of ER coating by enhance surface hydrophobicity is proposed. • The method is realized through the synergy of surface texture technology and filler reinforcement. • The study shows that the synergistic effect of filler and surface texture can protect the substrate from corrosive media.