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Surface roughness parameters and contact angles of water of the dense PPO, BCP and BCP/GO membranes.
| Membrane | Surface Parameters | Contact Angle of Water, ° | |
|---|---|---|---|
| Ra, nm | Rq, nm | ||
| PPO | 4.0 | 5.2 | 89 ± 2 |
| BCP (PDMS:PPO:TDI = 26:73:1) | 28.1 | 38.0 | 91 ± 2 |
| BCP (PDMS:PPO:TDI = 41:58:1) | 33.0 | 58.0 | 95 ± 2 |
| BCP (PDMS:PPO:TDI = 51:48:1) | 41.6 | 64.9 | 98 ± 2 |
| BCP/GO (0.3%) | 33.4 | 52.5 | 95 ± 2 |
| BCP/GO (0.5%) | 37.3 | 58.9 | 94 ± 2 |
| BCP/GO (0.7%) | 35.5 | 61.8 | 93 ± 2 |
| BCP/GO (0.9%) | 34.0 | 53.2 | 92 ± 2 |
