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Composition of casting solutions for various PVDF/PV blend membranes. CPL, ε-caprolactam.
| Membrane ID | Total Polymer (PVDF/PVA) Concentration (wt %) | PVDF/PVA Blend Ratio | CPL Concentration (wt %) |
|---|---|---|---|
| S1 | 16 | 8:2 | 84 |
| S2 | 18 | 8:2 | 82 |
| S3 | 20 | 8:2 | 80 |
| S4 | 22 | 8:2 | 78 |
| S5 | 24 | 8:2 | 76 |
| S6 | 26 | 8:2 | 74 |
| L | 20 | 7:3 | 80 |
| M | 20 | 9:1 | 80 |
| N | 20 | 10:0 | 80 |
