fig7

Figure 7. Stress-strain curves of the PVDF-HFP, H3020, H3520 and N115 membranes. PVDF-HFP: Poly (vinylidene fluoride-co-hexafluoropropylene).
Figure 7. Stress-strain curves of the PVDF-HFP, H3020, H3520 and N115 membranes. PVDF-HFP: Poly (vinylidene fluoride-co-hexafluoropropylene).
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