Abstract
Graphene oxide–alumina (GO–Al2O3) sheet hybrids were fabricated using GO as a precursor, then anchoring Al2O3 on GO sheets with the help of 3-aminopropyltriethoxysilane. The structure of hybrids can be measured by FT-IR, XPS, XRD, SEM and TEM. Composite epoxy coatings with same concentrations of GO, Al2O3, and GO–Al2O3 hybrids, among them, GO–Al2O3 hybrids not only achieved an homogeneous dispersion and compatibility in epoxy resin, but exhibited an obvious superiority in reinforcing the anti-corrosion performance of epoxy coatings. Furthermore, the anticorrosive mechanisms of GO–Al2O3/epoxy coatings were tentatively discussed.
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