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Huang, Chin-Feng ; Fu, S.-Y. ; Lauke, B. ; Li, L.F. ; Ye, L.
Cryogenic properties of SiO2/epoxy nanocomposites

SiO2/epoxy nanocomposites were prepared using diglycidyl ether of bisphenol-F (DGEBF) type epoxy and tetraethylorthosilicate (TEOS) via the sol–gel process. Silica nanoparticles were collected after burning off the matrix resin and the silica nanoparticles were observed using TEM. The cryogenic tensile properties at 77 K and thermal expansion coefficient of the nanocomposites were studied. The tensile properties at room temperature were also given to compare with the cryogenic tensile properties. The fracture surfaces were examined with scanning electron microscopy (SEM). The effects of silica nanoparticle content have been studied on the cryogenic tensile and thermal properties of the nanocomposites. In addition, the dependence of the glass transition temperature on the silica nanoparticle content has also been examined.

Quelle
Cryogenics 45

Seiten
450-454

DOI
http://dx.doi.org/10.1016/j.cryogenics.2005.03.003

Erschienen am
January 2006
 
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