Abstract
Poly (l-lactic acid) (PLLA) and hydroxyapatite (HA)/PLLA composite plates were processed by press-process method using a hot press at a temperature close to the glass transition temperature of PLLA. Fracture energy was evaluated for the pressed and the control specimens. Fracture surface morphology was also characterized using a field emission scanning electron microscope to investigate the relationship between the microstructure and the fracture property. Single-edge-notch bending (SENB) specimens were fabricated from these pressed and unpressed plates for fracture testing. The press-processed HA/PLLA exhibited strong adhesion between the HA particle and the PLLA matrix. Interfacial strength at the HA/PLLA was effectively improved due to press processing, contributing to the improvement of the fracture energy.
| Original language | English |
|---|---|
| Pages (from-to) | 799-801 |
| Number of pages | 3 |
| Journal | Journal of Materials Science |
| Volume | 43 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jan 2008 |
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering