Open Access
Table 2
Atomic percentages of oxygen, carbon and nitrogen determined by XPS analysis prior to and after activation.
| Device power | %O | %C | %N | |
|---|---|---|---|---|
| PEEK theoretic | / | 13.6 | 83.4 | – |
| PEEK reference | / | 13.5 | 85.8 | 0.2 |
| Air plasma | 800 W | 19 | 79.9 | 0.4 |
| 900 W | 20.2 | 79.1 | 0.4 | |
| 950 W | 21.9 | 76.5 | 0.8 | |
| 1320 W | 21.5 | 77.1 | 0.9 | |
| Nitrogen plasma | 1120 W | 19.6 | 79.2 | 0.9 |
| 1180 W | 20.4 | 78.3 | 0.7 | |
| 1230 W | 20.3 | 78.5 | 0.8 | |
| 1530 W | 21.9 | 77 | 0.7 |
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