Abstract
Based on ex-situ toughening concept, the polyamide nonwoven fabric(PNF) with high porosity was chosen as structural toughening layer, and the U3160 carbon fiber reinforced epoxy 3266 composites toughened by interlaminar PNF(U3160-PNF/3266) was fabricated via RTM process. The properties of U3160-PNF/3266 composite were investigated as well as toughening mechanism. The results indicate that the PNF still keep original structure in composites interlaminar, and formed a unreactional co-continuous structure with based resin which show remarkable toughening effect. Mode I fracture toughness (G IC) and mode II fracture toughness (G IIC) of the U3160-PNF/3266 composites are 1.1 times and 1.4 times higher respectively than that of the control system, and the compression after impact (CAI) increase from 212 MPa to 281 MPa.
| Original language | English |
|---|---|
| Pages (from-to) | 1-9 |
| Number of pages | 9 |
| Journal | Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica |
| Volume | 29 |
| Issue number | 4 |
| Publication status | Published - Aug 2012 |
| Externally published | Yes |
Keywords
- Composites
- Interlaminar properties
- Interlaminar toughen
- Nonwoven fabric
- RTM
ASJC Scopus subject areas
- Ceramics and Composites
- General Chemistry
- Condensed Matter Physics
- Mechanics of Materials