Table 2.
Mechanical parameters obtained from the stress-strain measurements for the different PVDF matrices and the corresponding composites with CNT and rGO.
| Sample | Initial Modulus (MPa) | Strain at Rupture (%) | Stress at Rupture (MPa) | Yield Strain (%) | Yield Stress (MPa) |
|---|---|---|---|---|---|
| PVDF-HFP | 356 ± 15 | 70.8 ± 4 | 15.5 ± 3 | 12.7 ± 3 | 18.1 ± 4 |
| 025CNT/HFP | 372 ± 16 | 328.2 ± 16 | 17.4 ± 4 | 19.3 ± 5 | 19.1 ± 4 |
| 05CNT/HFP | 439 ± 18 | 309.5 ± 15 | 22.4 ± 4 | 18.3 ± 4 | 22.3 ± 5 |
| PVDF6010 | 1065 ± 45 | 11 ± 2 | 42.8 ± 8 | 9.6 ± 2 | 44.7 ± 10 |
| 025CNT/6010 | 1293 ± 49 | 11.1 ± 2 | 49.5 ± 10 | 8.9 ± 2 | 51.9 ± 11 |
| 05CNT/6010 | 1388 ± 51 | 13.6 ± 3 | 51.9 ± 10 | 8.3 ± 2 | 55.9 ± 12 |
| PVDF5130 | 870 ± 40 | 23.4 ± 5 | 27.3 ± 6 | 9.8 ± 2 | 34.4 ± 7 |
| 025CNT/5130 | 863 ± 40 | 212.9 ± 13 | 30.0 ± 6 | 13.3 ± 3 | 42.0 ± 8 |
| 05CNT/5130 | 1244 ± 54 | 99.2 ± 5 | 32.0 ± 7 | 13.2 ± 3 | 43.6 ± 9 |
| 1CNT/5130 | 1220 ± 53 | 85.9 ± 4 | 38.6 ± 8 | 14.4 ± 4 | 46.6 ± 9 |
| PVDF5130 | 870 ± 41 | 23.4 ± 4 | 27.3 ± 6 | 9.8 ± 2 | 34.4 ± 7 |
| 05rGO/5130 | 1151 ± 52 | 12.3 ± 3 | 39.6 ± 8 | 8.7 ± 2 | 43.2 ± 9 |
| 1rGO/5130 | 1327 ± 55 | 11.9 ± 3 | 53.4 ± 11 | 8.9 ± 2 | 56.1 ± 11 |
| 2rGO/5130 | 1265 ± 54 | 4.5 ± 1 | 44.1 ± 9 | 4.5 ± 1 | 44.1 ± 10 |