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Spinning parameters of the produced PVDF hollow fibers (HFs).
| Spinning Condition | |
|---|---|
| Dope temperature | 80 °C |
| Dope flow rate | 11–12 g/min |
| Bore fluid composition and flow rate | NMP 30%; 13 g/min |
| Bore fluid temperature | 50 °C |
| Outer coagulant | Tap water at room temperature |
| Air gap | 24 cm |
| Spinneret dimension | O.D.–I.D. 1.6–0.6 mm |
O.D.: outer diameter; I.D.: inner diameter.
