Table 4.
Thermal properties and crystallinity of filaments, compression molded sheets, and 3D printed samples.
| Sample | DSC First Heating Cycle | DSC Cooling Cycle | DSC Second Heating Cycle | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Tg1 (°C) | Tcc1 (°C) | Tm1 (°C) | Xc1 (%) | Tc (°C) | ΔHc (J/g) | Tg2 (°C) | Tcc2 (°C) | Tm2 (°C) | Xc2 (%) | |
| PLA-N-F | 64.1 | 101.0 | 170.1 | 8.5 | 112.6 | 37.8 | 60.3 | - | 165.0, 168.8 | 35.8 |
| PLA-N-C | 64.1 | 106.1 | 168.3 | 3.7 | 108.2 | 30.6 | 61.7 | 99.5 | 163.8, 168.6 | 34.2 |
| PLA-N-B45 | 60.6 | 99.9 | 167.9 | 5.3 | 111.1 | 32.7 | 62.0 | - | 164.3, 168.5 | 35.5 |
| PLA-N-B60 | 61.8 | 95.2 | 167.3 | 11.6 | 112.4 | 32.6 | 61.9 | - | 164.1, 168.3 | 34.6 |
| PLA-P-F | 64.0 | 97.3 | 169.6 | 7.7 | 124.0 | 36.9 | 62.4 | - | 166.4 | 42.5 |
| PLA-P-C | 63.4 | 97.0 | 168.3 | 5.8 | 124.2 | 37.7 | 61.8 | - | 166.5 | 42.7 |
| PLA-P-B45 | 60.5 | 96.4 | 167.3 | 8.3 | 123.7 | 36.7 | 63.2 | - | 166.0 | 41.8 |
| PLA-P-B60 | 60.9 | 95.0 | 167.2 | 10.5 | 123.7 | 36.7 | 62.5 | - | 165.7 | 42.2 |
| PLA-CF-F | 64.6 | 90.4 | 167.2 | 11.8 | 91.3 | 0.8 | 60.6 | 102.9 | 166.7 | 9.2 |
| PLA-CF-C | 62.7 | 90.9 | 166.2 | 8.4 | 90.2 | 2.0 | 60.2 | 99.4 | 166.3 | 9.7 |
| PLA-CF-B45 | 60.9 | 92.1 | 165.4 | 9.2 | 91.5 | 1.5 | 60.9 | 103.0 | 166.3 | 8.8 |
| PLA-CF-B60 | 61.1 | 93.1 | 165.5 | 9.0 | 92.1 | 1.0 | 60.4 | 103.1 | 166.2 | 8.3 |
| PLA-Cu-F | 61.8 | 89.0 | 166.4 | 11.2 | 126.0 | 10.7 | 61.9 | - | 164.8 | 30.4 |
| PLA-Cu-C | 62.8 | 89.7 | 166.3 | 9.1 | 126.9 | 11.3 | 61.8 | - | 164.5 | 31.1 |
| PLA-Cu-B45 | 63.4 | 92.1 | 166.4 | 11.6 | 126.6 | 11.3 | 62.0 | - | 164.7 | 30.1 |
| PLA-Cu-B60 | 62.8 | 92.2 | 166.4 | 11.1 | 126.3 | 11.0 | 62.1 | - | 164.7 | 30.9 |