Table 3.
Comparison of the results of measurements of membrane thickness, porosity, average pore size, and water contact angle (WCA).
| Membrane | Membrane Thickness (L, µm) | Porosity (ε, %) | Average Pore Size (rm, nm) | WCA (°) | ||
|---|---|---|---|---|---|---|
| SEM | Dial Thickness | SEM | Dial Thickness | |||
| PSf | 116 ± 9.0 | 158 ± 0.03 | 30.52 ± 2.4 | 24.44 ± 3.1 | 5 | 120 ± 0.5 |
| PSf/PVP 0.15 | 107.5 ± 5.5 | 150 ± 0.01 | 44.77 ± 4.4 | 32.80 ± 2.1 | 17 | 65.37 ± 1.2 |
| PSf/PVP 0.25 | 101 ± 2.0 | 106 ± 0.05 | 71.94 ± 9.8 | 67.88 ± 3.4 | 13 | 50.46 ± 0.8 |
| PSf/PVP 0.35 | 148 ± 5.0 | 226 ± 0.01 | 39.69 ± 1.34 | 26.19 ± 1.3 | 12 | 50.26 ± 3.4 |