Table 6.
Mechanical tests for post-consumer rPP/SBS, rPP/SIS, rPP/SBS/GB, rPP/SIS/GB composites compared with those for post-consumer rPP.
| Sample | Density (at 23 °C) (g/cm3) | Tensile Strength at Break (MPa) |
Elongation at Break (%) |
Hardness (Sh D) |
VST A50 (°C) |
HDT (°C) |
Izod Impact (kJ/m2) |
|---|---|---|---|---|---|---|---|
| rPP | 1.0158 ± 0.0066 | 26.98 ± 1.50 | 30.30 ± 6.12 | 63 ± 2 | 136 ± 2 | 68 ± 1 | 0.95 ± 0.15 |
| rPP/SBS | 1.0180 ± 0.0021 | 21.99 ± 1.75 | 72.22 ± 9.46 | 60 ± 1 | 130 ± 2 | 63 ± 1.5 | 2.35 ± 0.34 |
| rPP/SBS/GB 5 | 1.0007 ± 0.0013 | 21.36 ± 1.24 | 46.36 ± 8.40 | 61 ± 2 | 115 ± 2 | 62 ± 1 | 1.80 ± 0.21 |
| rPP/SBS/GB 20 | 0.9826 ± 0.0005 | 20.45 ± 1.23 | 40.30 ± 5.80 | 62 ± 2 | 112 ± 2 | 61 ± 2 | 1.55 ± 0.17 |
| rPP/SIS | 1.0173 ± 0.0006 | 22.39 ± 1.45 | 55.20 ± 13.50 | 59 ± 1 | 128 ± 2 | 62 ± 1.5 | 1.75 ± 0.21 |
| rPP/SIS/GB 5 | 1.0001 ± 0.0049 | 23.51 ± 1.34 | 38.78 ± 6.52 | 61 ± 2 | 110 ± 2 | 61 ± 1.5 | 1.50 ± 0.34 |
| rPP/SIS/GB 20 | 0.9494 ± 0.0052 | 24.22 ± 1.63 | 29.69 ± 4.34 | 62 ± 1 | 115 ± 2 | 59 ± 1 | 1.15 ± 0.14 |