Table 2.
Mechanical properties and statistical analysis of neat PP and WPC before and after recycling.
| No. of Passes | Tensile Modulus (GPa) | Tensile Strength (MPa) | Elongation at Break (%) | |||
|---|---|---|---|---|---|---|
| PP | WPC | PP | WPC | PP | WPC | |
| 0 | 1.4 ± 0.1 A | 2.5 ± 0.1 A | 28.3 ± 0.2 A | 46.3 ± 1.2 A | 5.0 ± 1.3 A | 3.6 ± 0.7 A/B |
| 1 | 1.4 ± 0.1 A | 2.5 ± 0.1 A | 28.1 ± 0.3 A/B | 45.0 ± 0.8 B | 5.7 ± 1.0 A/B | 3.5 ± 0.2 A/B |
| 3 | 1.5 ± 0.1 A | 2.6 ± 0.1 A/B | 28.0 ± 0.3 A/B | 42.8 ± 0.4 C | 5.3 ± 0.5 A/B | 3.7 ± 0.4 A |
| 5 | 1.5 ± 0.1 A | 2.6 ± 0.1 A/B | 27.8 ± 0.2 A/B | 40.5 ± 0.6 D | 6.1 ± 0.6 A/B | 3.4 ± 0.3 A/B |
| 7 | 1.5 ± 0.1 A | 2.6 ± 0.1 B | 27.8 ± 0.2 B | 38.9 ± 0.5 E | 5.8 ± 0.5 A/B | 3.1 ± 0.1 B |
| 9 | 1.4 ± 0.1 A | 2.5 ± 0.1 A/B | 27.7 ± 0.2 B | 36.8 ± 0.8 F | 6.8 ± 0.6 B | 3.2 ± 0.4 A/B |
A/B Marked with the same let er within the same column are not significantly different at 5% significant level based on ANOVA and Tukey’s test.