Interfaces in poly(vinylidene fluoride) terpolymer/ ZrO2 nanocomposites and their effect on dielectric properties

Baojin Chu, Minren Lin, Bret Neese, Qiming Zhang

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41 Scopus citations

Abstract

Enhancement of weak and high field dielectric responses was observed in poly(vinylidene fluoride) terpolymer/ ZrO2 nanocomposites. A frequency-dependent interfacial polarization mechanism (related to the interfacial area between polymer and nanoparticles) is responsible for the enhancement of the dielectric constant at the low field. Due to the improvement of chain mobility and stabilization of the polar phase in the polymer/nanoparticle interface regions, the high field dielectric response of nanocomposites was also enhanced in the certain particle loading. Based on the high-field polarization saturation phenomenon, the dimension of interface regions in the nanocomposites was estimated as 20-40 nm.

Original languageEnglish (US)
Article number014103
JournalJournal of Applied Physics
Volume105
Issue number1
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy

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