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Performance of the PS-WPU samples.
| Samples | Water Contact Angle (°) | Surface Energy (γ) (mN/m) | Maximum Water Absorption (%) | |||
|---|---|---|---|---|---|---|
| D.W | S.W | D.W | S.W | D.W | S.W | |
| PS-WPU 1 | 80.3 | 82.0 | 34.1 | 46.6 | 29.2 | 16.1 |
| PS-WPU 2 | 83.6 | 83.9 | 32.0 | 45.2 | 20.0 | 15.0 |
| PS-WPU 3 | 85.1 | 85.6 | 31.1 | 44.0 | 18.5 | 12.5 |
| PS-WPU 4 | 95.0 | 95.0 | 25.1 | 37.3 | 11.5 | 7.1 |
| PS-WPU 5 | 101.8 | 99.5 | 20.9 | 34.1 | 6.9 | 5.0 |
