Abstract
Epoxy/γ-Al 2O 3 nanocomposites were prepared with a homogenizer and followed by a stepwise thermal curing process in this study. The dispersion of γ-Al 2O 3 nanoparticles was examined with a transmission electron microscopy (TEM). Meanwhile, the effects of γ-Al 2O 3 nanoparticles on thermal, dynamic mechanical and tensile properties of epoxy/γ-Al 2O 3 nanocomposites were also investigated and discussed. When the γ-Al 2O 3 content was increased from 1phr to 5phr, results revealed that γ-Al 2O 3 nanoparticles were effective to enhance both the stiffness and toughness of epoxy resin. Meanwhile, the maximum properties of glass transition temperature ( T g), T d5%, storage modulus, tensile modulus, and elongation at break were observed in the epoxy/5phr γ-Al 2O 3 nanocomposite.
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