Free volume dependence of the dielectric constant of poly(vinylidene fluoride) nanocomposite films.

ABSTRACT: The free volume effects on the dielectric properties of the polymer are ambiguous, and the quantitative effect of free volume on the dielectric properties has rarely been systematically studied, especially in the high-elastic state dipolar (HESD) polymer. In this work, the free volume of dipolar poly(vinylidene fluoride) (PVDF) is regulated by the addition of Al₂O₃, which greatly increase the size of free volume holes. Then the effect of free volume on the dielectric properties of PVDF/Al₂O₃ composites is discussed. The greatly enlarged size of free volume holes is believed to potentially generate disparate effects on dielectric constant under different frequencies in such kinds of HESD polymer-based composites, bringing about more remarkable fre

SUBMITTER: Yang L 

PROVIDER: S-EPMC9428769 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature