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Fracture mechanism of epoxy composites filled with ozone functionalized multi-wall carbon nanotubes
writer:LC Tang, H Zhang, JH Han, XP Wu, Z Zhang
keywords:Carbon nanotubes, Nano composites, Fracture toughness, Surface treatments, Scanning electron microscopy (SEM)
source:期刊
specific source:Composites Science and Technology
Issue time:2012年
This work focused on the fracture mechanisms and reinforcing effects of ozone-treated multi-walled carbon nanotubes (MWCNTs) in epoxy matrix. Ozone functionalization of MWCNTs was found to be of help for a better dispersion and stronger interfacial bonding with epoxy matrix, which in turn improve the strength and fracture toughness of the resin. The MWCNT/epoxy composites showed complicated failure modes than the conventional fibrous composites, which have been quantitatively investigated and correlated with the fracture toughness of the nanocomposites studied.