Table 4.
Flexural properties of PLA and BioPE composites filled with CaCO3.
| σf (MPa) | D (mm) | εf (%) | Ef (GPa) | |
|---|---|---|---|---|
| PLA | 114.10 ± 1.21 f | 6.975 ± 0.073 c | 4.69 ± 0.05 c | 3.987 ± 0.0153 d |
| PLA20GCC | 68.13 ± 1.18 e | 4.167 ± 0.106 b | 2.80 ± 0.07 b | 3.848 ± 0.0048 d |
| PLA40GCC | 20.41 ± 0.74 a | 0.646 ± 0.093 a | 0.43 ± 0.06 a | 4.843 ± 0.0063 e |
| BioPE | 21.25 ± 0.34 a | 9.790 ± 0.054 f | 6.58 ± 0.04 f | 0.839 ± 0.0025 a |
| BioPE20GCC | 23.84 ± 0.49 b | 8.938 ± 0.031 e | 6.01 ± 0.02 e | 0.965 ± 0.0020 a,b |
| BioPE40GCC | 27.60 ± 0.27 c | 8.996 ± 0.091 e | 6.05 ± 0.06 e | 1.257 ± 0.0002 b,c |
| BioPE40PCC | 28.33 ± 0.37 c,d | 8.692 ± 0.045 d | 5.84 ± 0.03 d | 1.341 ± 0.0014 b,c |
| BioPE60GCC | 30.52 ± 0.60 d | 8.912 ± 0.040 d,e | 5.99 ± 0.03 d,e | 1.633 ± 0.0123 c |
Different letters a, b, c, d, e, and f represent the statistical difference (ANOVA, p < 0.05) between the properties of the materials.