Abstract
Epoxy resin was grafted on the acidified Multi-carbon nanotubes (MWNTs) by covalent modification method. The changes in chemical and physical structure were investigated by FTIR, Raman spectra, TGA and TEM. As a result, when MWNTs were modified with strong acid, the carboxyl and hydroxyl groups were found on the surface of MWNTs. The epoxy groups had covalently grafted onto the surface of MWNTs and epoxy resin content on MWNTs surface was about 39%. The curing behaviors of MWNTs/epoxy nanocom-posites were examined by differential scanning calorimetry (DSC) technique. The modified MWNTs evidently affected the curing reaction of matrix composites.
| Original language | English |
|---|---|
| Pages (from-to) | 78-82 |
| Number of pages | 5 |
| Journal | Hangkong Cailiao Xuebao/Journal of Aeronautical Materials |
| Volume | 28 |
| Issue number | 5 |
| State | Published - Oct 2008 |
Keywords
- Carbon nanotubes
- Epoxy resin
- Nanocomposites
- Surface modification