Research Article
Manufacturing of Filament for 4D Printing through Polyether-Type TPU/PLA Blend
Table 4
DSC results of the PLA, TPU, and TPU/PLA blend filaments.
| Ratio of TPU/PLA
items | TPU | 9 : 1 | 7 : 3 | 5 : 5 | PLA |
| | TPU SS Tg (°C) | − 41.7 | − 40.5 | − 40.4 | − 36.9 | – | | TPU SS Tm (°C) | 75.5 | 82.6 | 88.2 | 89.5 | – | | PLA Tg (°C) | – | 58.0 | 57.3 | 57.2 | 57.0 | | PLA Tc (°C) | – | 103.7 | 116.9 | 114.1 | 108.1 | | PLA △H Tc (J/g) | – | 0.7 | 4.0 | 7.1 | 17.5 | | TPU Tm (°C) | 161.2 | 149.1 | 149.2 | 148.4 | – | | PLA Tm (°C) | – | 153.0 | 153.8 | 153.4 | 152.6 | | PLA △H Tm (J/g) | – | 2.6 | 6.8 | 12.8 | 23.4 |
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