The pore size, WVTR and thickness of pristine PVDF, PVDF/NS10, PVDF/NS25 and PVDF/NS50 films.

	Pore size (μm) of top layer	Pore size (μm) of bottom layer	WVTR (g m−2 per day)	Thickness (μm)
PVDF	0.32 ± 0.07	1.93 ± 0.45	2507.9 ± 200.2	113.8 ± 8.6
PVDF/NS10	0.33 ± 0.09	1.88 ± 0.37	2500.5 ± 193.8	148.5 ± 5.8
PVDF/NS25	0.35 ± 0.09	1.88 ± 0.36	2490.5 ± 190.0	142.7 ± 3.9
PVDF/NS50	0.35 ± 0.10	1.87 ± 0.48	2486.3 ± 192.3	149.9 ± 3.2