Table 2.
The roughness and atomic percentage of the Ca/P element for various microroughened PEEK/n-HA/CF ternary composites showing the mean ± standard deviation
| Sample names | Control | Group 1 | Group 2 | Group 3 |
|---|---|---|---|---|
| Surface treatment | Polished with 2,000-grit paper | 60–80 μm Al2O3 | 110–150 μm Al2O3 | 180–250 μm Al2O3 |
| Ca content* | 6.0%±1.5% | 11.5%±3.4% | 21.4%±2.2% | 30.9%±2.6% |
| P content* | 3.8%±0.9% | 8.7%±1.1% | 13.9%±1.2% | 19.5%±1.1% |
| Ra (μm) | 0.12±0.01 | 0.93±0.09 | 1.96±0.21 | 2.95±0.35 |
| Rq (μm) | 0.17±0.02 | 1.28±0.17 | 2.49±0.27 | 3.64±0.56 |
Note:
*
The concentrations of calcium and phosphorus were reported and estimated from XPS analysis.
Abbreviations: PEEK/n-HA/CF, carbon fiber-reinforced polyetheretherketone–nanohydroxyapatite; Ra, average roughness; Rq, root-mean-square average roughness; XPS, X-ray photoelectron spectroscopy.