Abstract
Carbon/CNT/epoxy three-phase composites were fabricated by incorporating woven carbon fibers into epoxy mixed with multi-walled carbon nanotubes (MWCNTs). Three carbon/CNT/epoxy composites were fabricated containing unmodified, acid-modified, and silane-modified CNTs at 1 wt.% to investigate the effects of the silane-modified CNTs on the mechanical, thermal, and electrical properties of the three-phase composites. The results showed that the elastic modulus and tensile strength of the carbon/CNT/epoxy three-phase composites were improved by silane modification of the CNTs. Specifically, the elastic modulus of the silane-modified carbon/CNT/epoxy composite was approximately 13% and 18% higher than that of the acid-modified and unmodified composites, respectively. The tensile strength of the silane-modified carbon/CNT/epoxy composite was 8.4% and 15.8% higher than that of the acid-modified and unmodified composites, respectively. In addition, the thermal properties and electrical conductivity of the carbon/CNT/epoxy composites were improved due to silane modification of the CNTs.
| Original language | English |
|---|---|
| Pages (from-to) | 478-483 |
| Number of pages | 6 |
| Journal | Composites Part A: Applied Science and Manufacturing |
| Volume | 42 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 May 2011 |
| Externally published | Yes |
Keywords
- A. Polymer-matrix composites (PMCs)
- B. Mechanical properties
- E. Surface treatment
- Three-phase composites