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Membrane characteristics as a function of ionic strength of a sodium chloride solution for a DuPont-FilmTec XLE membrane at pH 6.8 ± 0.2. Used with Permission of Elsevier B.V. [40].
| Ionic Strength (mM) | Contact Angle * (Degrees) | Interfacial Free Energy (mJ/m2) | Interfacial Free Energy of Cohesion (mJ/m2) |
|---|---|---|---|
| 10 | 65.6 | 95.2 | −39.2 |
| 100 | 59.6 | 100.3 | −30.2 |
| 1000 | 56.5 | 102.8 | −25.6 |
* average.
