To solve the dispersion problem of graphene in coating,graphene oxide-coated hollow glass microspheres(GO-HGM)were prepared using hollow glass microspheres(HGM)and graphene oxide(GO)as the raw materials.Then,through thermal reduction,functionalized powders(RGO-HGM)with electrical conductivity were obtained.The structure and microscopic morphology of GO-HGM and RGO-HGM were analyzed by FT-IR,Raman,XPS and SEM.The results showed that GO was successfully coated onto the surface of HGM and thermally reduced to RGO-HGM,restoring a certain level of conductivity.Adding RGO-HGM to epoxy zinc rich coatings with a zinc content of 50％could effectively increase the activated zinc content,thereby improving the cathodic protection ability of the epoxy zinc rich coating.The best anti-corrosion effect was achieved when the addition amount was 6％.
维普
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