Abstract
This paper reports our recent work on developing a novel CVD grown 3D network graphene interleaves in glass fiber reinforced composites (GFRPs) with excellent interlaminar fracture toughness and interlaminar shear strength. By incorporating the network graphene in the failure-prone mid-plane, the interleaved multiscale composites present a remarkable increases of 70% and 206% in mode I and II interlaminar fracture toughness, respectively, and 36% enhancement in interlaminar shear strength, when compared to those composites without the interleaves. The pertinent mechanisms responsible for the toughening effects of interleaves include crack deflection and formation of interfacial micro-cracks with significant increase in surface areas owing to the 3D hollow sphere-like graphene wrapping around the epoxy matrix as well as graphene fracture and slippage between adjacent layers. This work opens a new venue towards the development of 3D network graphene interleaved FRPs with excellent toughness and high ILSS for suppression of crack growth under delamination loading compared to its CNT and CNF counterparts.
| Original language | English |
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| Publication status | Published - 2015 |
| Externally published | Yes |
| Event | 20th International Conference on Composite Materials, ICCM 2015 - Copenhagen, Denmark Duration: 19 Jul 2015 → 24 Jul 2015 |
Conference
| Conference | 20th International Conference on Composite Materials, ICCM 2015 |
|---|---|
| Country/Territory | Denmark |
| City | Copenhagen |
| Period | 19/07/15 → 24/07/15 |
Keywords
- Fractography
- Fracture toughness
- Interfacial strength
- Network graphene interlayer
- Polymer-matrix composites (PMCs)
ASJC Scopus subject areas
- General Engineering
- Ceramics and Composites