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The effects of the temperature and screw speed on the film blowing of polylactide/polytrimethylene carbonate.
| StageI (°C) | Stage II (°C) | Stage III (°C) | Stage IV (°C) | Screw speed (pr/min) | Macroscopic morphology of film |
|---|---|---|---|---|---|
| 160 | 175 | 175 | 165 | 40 | Film with white points |
| 170 | 185 | 185 | 175 | 40 | Smooth film |
| 180 | 195 | 195 | 185 | 40 | Unformed film |
| 170 | 185 | 185 | 175 | 20 | Unformed film |
| 170 | 185 | 185 | 175 | 60 | Porous film |
