Table 2. Quantitation of the Morphological and Mechanical Properties of the PEEK Scaffolds as Determined by Micro-CT Imaging, Sessile Drop Method, Optical Proflometry, and Static Compression Testing.
| PEEK-S | PEEK-300 | PEEK-450 | PEEK-600 | ||
|---|---|---|---|---|---|
| designed | pore size (μm) | 300 | 450 | 600 | |
| porosity (%) | 70 | 70 | 70 | ||
| actual | pore size (μm) | 260 ± 26 | 401 ± 24 | 556 ± 33 | |
| porosity (%) | 59.3 ± 2.5 | 61.5 ± 3.2 | 62.3 ± 2.4 | ||
| interconnectivity (%) | 97.6 ± 0.15 | 98.4 ± 0.12 | 98.6 ± 0.24 | ||
| Young’s modules (MPa) | 1006.5 ± 84.4 | 367.8 ± 63.2 | 260.8 ± 45.1 | 231.1 ± 28.2 | |
| compressive strength (MPa) | 102.7 ± 7.5 | 59.9 ± 8.3 | 44.6 ± 6.4 | 31.2 ± 4.4 |