Research Article
Evaluation of High-Performance Polyether Ether Ketone Polymer Treated with Piranha Solution and Epigallocatechin-3-Gallate Coating
Table 1
Shapiro-Wilk test for all groups in AFM, wettability, and roughness.
| Tests | Group C | Group P | Group E | Group PE | value | Passed | value | Passed | value | Passed | value | Passed |
| AFM | 0.167 NS | Yes | 0.541 NS | Yes | 0.345 NS | Yes | 0.845 NS | Yes |
| Wettability contact angle test | 0.555 NS | Yes | 0.432 NS | Yes | 0.342 NS | Yes | 0.598 NS | Yes |
| Hardness (Vickers) | 0.678 NS | Yes | 0.338 NS | Yes | 0.753 NS | Yes | 0.134 NS | Yes |
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