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Ion-exchange capacities (IECs), water uptake and swelling ratio of SPEKEBI-x-SiO2 and SPEKEBI membranes.
| Membranes | IEC | Water Uptake (%) | Swelling Ratio (%) | |||
|---|---|---|---|---|---|---|
| Theoratical | Practical | 30 °C | 80 °C | 30 °C | 80 °C | |
| SPEKEBI-2.5-SiO2 | 2.30 | 2.21 | 42.8 | 159.2 | 8.9 | 44.8 |
| SPEKEBI-5.0-SiO2 | 2.24 | 2.09 | 37.7 | 128.0 | 6.4 | 31.8 |
| SPEKEBI-7.5-SiO2 | 2.18 | 1.99 | 37.0 | 118.9 | 5.0 | 29.0 |
| SPEKEBI-10-SiO2 | 2.12 | 1.82 | 30.8 | 106.3 | 4.8 | 28.6 |
