Abstract
The effects of heat treatment on the crystal structure and impact strength of poly(phenylene sulfide) (PPS) and nano-SiOx/ PPS nanocomposites were studied. The molecular weight of heat-treated neat PPS was increased by 28% due to the crosslinking reaction that changed its crystal morphology. Also, the crystallinity was reduced by 18%, leading to an improvement of the Izod impact strength by 66%. Nano-SiOx/PPS composites were manufactured by intensive compounding with 3 wt.-% nano-SiOx particles treated by an epoxy functional group. Test results showed that the Izod impact strength of nano-SiOx/heat-treated PPS composites was 91% better and the crystallinity 27% less compared to the same properties of "as received" neat PPS. Nano-SiOx has a high specific surface area and a high surface energy; its grafted epoxy group promotes interfacial adhesion with the PPS matrix, hence increasing the Izod impact strength of the nanocomposites.
| Original language | English |
|---|---|
| Pages (from-to) | 693-698 |
| Journal | Macromolecular Materials and Engineering |
| Volume | 288 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 10 Sept 2003 |
Research Keywords
- Impact resistance
- Nano-SiOx
- Nanocomposites
- PPS
- Thermal treatment
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