Abstract
The UPR (Unsaturated Polyester Resins) has been toughened and strengthened By using the nanometer TiO2 powder and an obvious brittle-tough transformation was observed while utilizing the simple-support-beam impact strength to characterize its toughness. The critical content of the nanometer TiO2 is 6% (mass fraction). The flexural-strength and impact-strength and impact-strength of nanometer TiO2/UPR increases by 55% and 46% from those of the UPR, respectively. The micro appearance of the impact fracture showed that the fracture pattern of the nanometer TiO2/UPR changes from typical brittle to typical tough fracture near the critical point.
| Original language | English |
|---|---|
| Pages (from-to) | 512-516 |
| Number of pages | 5 |
| Journal | Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research |
| Volume | 16 |
| Issue number | 5 |
| State | Published - Oct 2002 |
Keywords
- Brittle-tough
- Nanometer TiO
- Unsaturated polyester resins (UPR)