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Mechanical properties of PEEK and PEEK/CNT/GnP filaments.
| Composition | E (GPa) | σy (MPa) | UTS (MPa) | εbreak (%) |
|---|---|---|---|---|
| PEEK | 1.48 ± 0.1 | 85± 2 | - | >400 |
| PEEK/3/1 | 1.9 ± 0.1 | 84 ± 1 | 78.6 ± 0.7 | 42 ± 3 |
| PEEK/3/3 | 1.7 ± 0.1 | 88 ± 3 | 82 ± 4 | 39 ± 5 |
| PEEK/3/5 | 1.8 ± 0.1 | 92 ± 1 | 89 ± 1 | 27 ± 7 |
| PEEK/4/1 | 1.6 ± 0.1 | 90 ± 3 | 86 ± 3 | 53 ± 4 |
| PEEK/4/3 | 1.60 ± 0.1 | 92 ± 1 | 88 ± 1 | 53 ± 8 |
