Table 1.
Degrees of crystallinity (Xc) of the PVDF in stages unaged, and after aging in bioethanol fuel and post-annealing at different times of exposition. Adapted and improved from De Jesus Silva et al. [7].
| Aging times | Xc – WAXD (%) | Xc – DSC (%) |
|---|---|---|
| Zero (unaged) | 41.52 ± 0.97 | 48.90 ± 0.04 |
| 30 days in bioethanol | 41.85 ± 0.45 | 49.01 ± 0.02 |
| 90 days in bioethanol | 42.94 ± 0.60 | 48.13 ± 0.01 |
| 180 days in bioethanol | 43.73 ± 0.18 | 50.14 ± 0.03 |
| Annealed 30 days | 42.42 ± 0.99 | 51.06 ± 0.02 |
| Annealed 90 days | 43.46 ± 1.10 | 53.86 ± 0.02 |
| Annealed 180 days | 45.24 ± 0.38 | 52.83 ± 0.01 |