Table 11
Characteristics of neat matrices (before and after extrusion), and PP and PLA composite blends.
| Formulation | Density (kg/m3) | Tensile strength (MPa) | Young’s modulus (GPa) | Flexural strength (MPa) | Elastic modulus (GPa) | Impact resilience (kJ/m2) | TS (%) | WA (%) |
|---|---|---|---|---|---|---|---|---|
| Neat PP | 837 ± 3 | 23.5 ± 0.3 | 1.1 ± 0.1 | 38.7 ± 0.6 | 1.0 ± 0.0 | No rupture | 0.2 ± 0.1 | 0.0 ± 0.0 |
| PP0 | 839 ± 2 | 24.3 ± 0.4 | 1.3 ± 0.0 | 40.3 ± 0.5 | 1.0 ± 0.1 | No rupture | 0.1 ± 0.1 | 0.1 ± 0.0 |
| PP1 | 849 ± 1 | 23.9 ± 0.4 | 1.5 ± 0.1 | 42.1 ± 1.5 | 1.1 ± 0.1 | 37.3 ± 3.9 | 0.3 ± 0.2 | 0.1 ± 0.0 |
| PP2 | 862 ± 5 | 23.7 ± 0.5 | 1.5 ± 0.1 | 43.4 ± 1.0 | 1.3 ± 0.1 | 27.2 ± 1.9 | 0.9 ± 0.1 | 0.1 ± 0.0 |
| Neat PLA | 1,210 ± 5 | 59.2 ± 8.6 | 3.5 ± 0.1 | 73.1 ± 7.4 | 2.7 ± 0.4 | 11.7 ± 0.3 | 0.4 ± 0.2 | 0.0 ± 0.0 |
| PLA0 | 1,217 ± 2 | 43.8 ± 3.2 | 3.6 ± 0.3 | 53.9 ± 5.3 | 2.9 ± 0.5 | 7.9 ± 0.5 | 0.3 ± 0.2 | 0.0 ± 0.0 |
| PLA1 | 1,221 ± 5 | 38.0 ± 5.1 | 3.5 ± 0.2 | 51.9 ± 3.5 | 3.0 ± 0.4 | 5.2 ± 0.7 | 0.4 ± 0.1 | 0.1 ± 0.0 |
| PLA2 | 1,229 ± 1 | 37.8 ± 3.1 | 3.8 ± 0.2 | 46.2 ± 4.0 | 3.1 ± 0.2 | 4.3 ± 0.8 | 0.4 ± 0.2 | 0.2 ± 0.1 |
| PLA3 | 1,241 ± 4 | 36.0 ± 3.0 | 4.4 ± 0.4 | 41.6 ± 3.8 | 3.5 ± 0.2 | 3.9 ± 0.4 | 0.5 ± 0.1 | 0.4 ± 0.1 |
| PLA4 | 1,249 ± 2 | 33.6 ± 4.7 | 4.6 ± 0.4 | 39.3 ± 3.7 | 3.6 ± 0.3 | 3.5 ± 0.3 | 0.7 ± 0.2 | 0.5 ± 0.1 |
| PLA5 | 1,260 ± 3 | 32.6 ± 1.8 | 4.7 ± 0.4 | 32.4 ± 4.6 | 3.7 ± 0.3 | 3.2 ± 0.3 | 0.8 ± 0.2 | 1.2 ± 0.1 |
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