Abstract
The impact behavior of PET/PC/E-GMA-MA blends at different temperatures was studied. The relationships between the processing conditions, morphology and mechanical properties were discussed. It was revealed that the toughening effect due to the E-GMA-MA copolymer appears at just above its glass transition temperature, and the blending sequence has a strong influence on the morphology and impact toughness of the blends. The brittle-ductile transition of the blends made under optimum processing conditions takes place at a relatively low temperature and with a low elstomer content. The major toughening mechanisms were identified to be massive cavitation plus matrix shear yielding. Both SEM and TEM were employed to study the morphology and toughening mechanisms.
| Original language | English |
|---|---|
| Pages (from-to) | 787-792 |
| Number of pages | 6 |
| Journal | Key Engineering Materials |
| Issue number | 149 PART II |
| Publication status | Published - 1998 |
| Externally published | Yes |
Keywords
- Blending Sequence Effect
- Impact Strength
- PET/PC Blends
- SEM
- TEM
- Toughening
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering