Abstract
Organic-inorganic hybrids were prepared using diglycidyl ether of bisphenol-F (DGEBF) type epoxy and tetraethylorthosilicate (TEOS) via the sol-gel process. The mechanical properties of the composites were studied at cryogenic temperature (77K). Results showed that the tensile strength, elongation at break and impact strength were enhanced by the addition of silica particles. The ashes of the composites were collected after burning off the matrix resin and the silica nano-particles were observed by TEM. The fracture surface was examined by scanning electron microscopy (SEM). The dependence of the mechanical properties of the nanocomposites at cryogenic temperature was discussed on the silica content.
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