Mechanical properties of PLA/PBASGT blends and compositesa.
| Material | Young modulus (GPa) | Yield stress (MPa) | Stress at break (MPa) | Strain at break (%) | Tensile impact strength (kJ m−2) |
|---|---|---|---|---|---|
| Blend (97/3) | 1.92 ± 0.10 | 48.0 ± 1.4 | 41.5 ± 1.4 | 15.5 ± 1.1 | 61.3 + 2.1 |
| Blend (94/6) | 1.77 ± 0.12 | 47.2 ± 1.3 | 32.0 ± 0.6 | 74.7 ± 12.4 | 68.0 + 5.1 |
| Blend (90/10) | 1.70 ± 0.10 | 47.3 ± 1.7 | 34.1 ± 1.5 | 109.8 ± 26.0 | 96.8 + 15.9 |
| Composite (97/3) | 2.17 ± 0.10 | 46.2 ± 2.9 | 34.7 ± 5.4 | 67.3 ± 31.2 | 89.1 + 8.1 |
| Composite (94/6) | 2.30 ± 0.11 | 46.6 ± 1.6 | 42.8 ± 5.3 | 154.5 ± 17.4 | 96.0 + 7.8 |
| Composite (90/10) | 2.32 ± 0.14 | 42.1 ± 1.6 | 40.9 ± 2.2 | 176.7 ± 8.9 | 113.7 + 11.1 |
a
Neat PLA: E = 2.04 + 0.09 GPa, σb = 43.0 ± 1.7 MPa, eb = 7.0 ± 1.0%, α = 58.9 ± 4.9 kJ m−2.