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Contact angle and X-ray photoelectron spectroscopy (XPS) elemental analysis results.
| WCA (°) |
Element concentration (at%) |
|||
| Sample | 15 min | 14 days | C (1 s) | O (1 s) |
| PEEK | 79.5 ± 2.4 | 79.5 ± 2.4 | 88.8 | 11.2 |
| PEEK/120 s | 23.2 ± 1.8 | 55.1 ± 2.2 | 67.3 | 32.7 |
| PEEK/240 s | 21.8 ± 1.3 | 48.3 ± 1.9 | 60.1 | 39.9 |
| PEEK/480 s | 18.9 ± 1.7 | 64.7 ± 2.1 | 51.4 | 48.6 |
