| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 820754 | Composites Science and Technology | 2011 | 7 Pages |
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.
► We focused on the reinforcing effects of ozone-treated carbon nanotubes in epoxy. ► Nanotubes perform better dispersion and stronger interfacial bonding with matrix. ► The mechanical properties of nanocomposites were significantly improved. ► The nanotube failure modes transferred from pullout to sliding-fracture. ► This failure mode favors the energy absorption and contributes to improved toughness.
