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Mechanical properties of rPET fibers prepared using needles with various inner diameters.
| Inner Diameter of Needles (μm) | Mechanical Properties | ||
|---|---|---|---|
| Tensile Strength (MPa) | Modulus (MPa) | Strain at Break (%) | |
| 160 | 4.3 ± 0.2 | 34.4 ± 7.1 | 167 ± 32 |
| 260 | 4.5 ± 0.4 | 32.1 ± 5.1 | 162 ± 13 |
| 340 | 7.8 ± 1.9 | 54.3 ± 15.0 | 205 ± 28 |
