Research Article
Manufacturing of Filament for 4D Printing through Polyether-Type TPU/PLA Blend
Table 1
Melt-extrusion parameters for TPU/PLA blend filament production from pellets.
| Ratio of TPU/PLA
items | 5 : 5 | 7 : 3 | 9 : 1 |
| | First temperature (°C) | 193 | 191 | 190 | | Second temperature (°C) | 192 | 191 | 189 | | Third temperature (°C) | 192 | 190 | 189 | | Screw speed (rpm) | 12.0 | 12.0 | 13.2 | | Nozzle (mm) | 1.5 | 1.5 | 1.5 | | Filament diameter (mm) | 1.80 ± 0.10 | 1.80 ± 0.05 | 1.85 ± 0.05 | | Filament hardness (Shore A) | 94 | 92 | 86 | | Products | | | |
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