Table 6.
Main thermal degradation parameters of the injection-molded poly(3-hydroxybutyrate-co-3-hydroxyhexanoate) [P(3HB-co-3HHx)]/hydroxyapatite nanoparticle (nHA) parts in terms of onset temperature of degradation (T5%), degradation temperature (Tdeg), and residual mass at 700 °C.
| Part | T5% (°C) | Tdeg (°C) | Residual Mass (%) |
|---|---|---|---|
| P(3HB-co-3HHx) | 272.5 ± 2.3 | 296.7 ± 1.4 | 2.6 ± 0.3 |
| P(3HB-co-3HHx) + 2.5 nHA | 272.2 ± 1.7 | 300.9 ± 2.2 | 5.1 ± 0.5 * |
| P(3HB-co-3HHx) + 5 nHA | 272.4 ± 1.3 | 299.9 ± 1.7 | 7.6 ± 0.4 * |
| P(3HB-co-3HHx) + 10 nHA | 262.3 ± 1.8 * | 299.6 ± 1.8 | 12.2 ± 0.7 * |
| P(3HB-co-3HHx) + 20 nHA | 254.8 ± 1.3 * | 295.6 ± 1.6 * | 22.1 ± 0.8 * |
* Indicates a significant difference compared with the previous sample (p < 0.05). Level of significance (p) values are included in Table S3.