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. 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 δD δP δH δTot Ro fit
[MPa1/2] [MPa1/2] [MPa1/2] [MPa1/2] [–] [–]
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 -