. 2020 Aug 24;10(9):197. doi: 10.3390/membranes10090197

Table 5.

Hansen solubility parameters for pristine and PVP-modified ZnO nanoparticles obtained from the data shown in Table 4; literature values for PVP and PVDF for comparison.

Material	δ_D	δ_P	δ_H	δ_Tot	R_o	fit
Material	[MPa^1/2]	[MPa^1/2]	[MPa^1/2]	[MPa^1/2]	[–]	[–]
ZnO	15.8	7.9	16.8	24.4	10.0	1.00
ZnO PVP-mod	19.4	14.3	16.4	29.2	11.3	0.83
PVP [38]	21.4	11.6	21.6	32.5	17.3	-
PVDF [38]	17.0	12.0	10.2	23.2	4.1	-