Table 2.
Take-up speeds of the winder and as-spun filament diameters with different initial drawing ratios.
Initial drawing ratio | Take-up speed (m/min) | As-spun filament | As-spun filament diameter (μm) |
---|---|---|---|
1 | 0 (Free fall) | U/H | 588 ± 10 |
U | 597 ± 11 | ||
3 | 2.5 | U/H | 346 ± 8 |
U | 353 ± 10 | ||
6 | 5 | U/H | 242 ± 7 |
U | 245 ± 8 | ||
9 | 7.5 | U/H | 199 ± 6 |
U | 202 ± 5 |