Table 5.
Tensile properties of the PHBV/PCL mixtures and PHBV/PCL/CNC composites 1.
| Sample | Ultimate Tensile Strength (σmax), MPa | Tensile Strength at Break (σb), MPa | Elongation at Break (ε), % | Young’s Modulus (E), MPa |
|---|---|---|---|---|
| PHBV/PCL(1:1) | 11.7 | 11.7 | 8.7 | 350 |
| PHBV/PCL(1:1)/CNC(PVP)–5 | 11.7 | 10.7 | 82.0 | 330 |
| PHBV/PCL(1:1)/CNC(PVP)–10 | 7.1 | 7.1 | 2.0 | 460 |
| PHBV/PCL(1:1)/CNC(PVP)–15 | 3.2 | 3.2 | 3.0 | 340 |
| PHBV/PCL(1:1)/CNC(PAM)–5 | 3.7 | 3.7 | 4.0 | 280 |
| PHBV/PCL(1:1)/CNC(PAM)–10 | 4.2 | 4.2 | 5.6 | 280 |
| PHBV/PCL(1:1)/CNC(PAM)–15 | 4.3 | 4.3 | 7.0 | 220 |
| PHBV/PCL(1:2) | 17.3 | 17.0 | 340 | 260 |
| PHBV/PCL(1:2)/CNC(PVP)–5 | 11.5 | 11.5 | 16.4 | 250 |
| PHBV/PCL(1:2)/CNC(PVP)–10 | 10.1 | 9.4 | 3.4 | 480 |
| PHBV/PCL(1:2)/CNC(PVP)–15 | 7.9 | 7.9 | 8.9 | 360 |
| PHBV/PCL(1:2)/CNC(PAM)–5 | 9.5 | 9.5 | 5.3 | 430 |
| PHBV/PCL(1:2)/CNC(PAM)–10 | 10.4 | 10.4 | 7.6 | 510 |
| PHBV/PCL(1:2)/CNC(PAM)–15 | 10.0 | 10.0 | 9.3 | 360 |
1 The obtained values of the elongation at break and stress are within ±15%, Young’s modulus is within ±10%.