Research Article
Manufacturing of Filament for 4D Printing through Polyether-Type TPU/PLA Blend
Table 5
Mechanical properties of the PLA, TPU, and TPU/PLA blend filaments.
| Ratio of TPU/PLA
items | 0 : 10 | 5 : 5 | 7 : 3 | 9 : 1 | 10 : 0 |
| | Diameter (mm) | 1.7 ± 0.03 | 1.7 ± 0.05 | 1.8 ± 0.05 | 1.6 ± 0.07 | 1.8 ± 0.05 | | Stress (MPa) | 31.89 ± 0.7 | 25.21 ± 0.5 | 21.20 ± 0.4 | 20.99 ± 0.5 | 19.99 ± 0.3 | | Strain (%) | 4.65 ± 0.1 | 12.49 ± 2.0 | 342.82 ± 4.7 | 600.98 ± 5.5 | 982.32 ± 7.3 | | Initial modulus (MPa) | 1207.58 ± 0.05 | 296.55 ± 0.03 | 192.30 ± 0.05 | 40.86 ± 0.03 | 5.97 ± 0.05 | | Rupture energy (J) | 0.04 ± 0.01 | 0.41 ± 0.01 | 3.92 ± 0.02 | 3.88 ± 0.03 | 5.33 ± 0.05 |
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