Preparation and Dielectric Property of Ag/PVDF Composite Film

Abstract:

Conductive particle fillers could improve the dielectric properties of the polymer matrix. By solvent casting method, different volume fraction of nanosilver particles were added into the PVDF film to prepare Ag/PVDF composite film so as to increase the dielectric properties of the materials. SEM was used to analyze the microstructure of the films. SEM images show that nanoAg filler particles were uniformly distributed throughout the whole matrix of the composite films. Dielectric property tests show that with the increase of nanoAg content, the dielectric constants of the composites increase first and decrease later while the dielectric losses decrease first and increase later. In the case of the optimal 17vol% Ag content, the dielectric constant of the composite film is the highest (14.5 at 100 Hz) with lower dielectric loss, and the energy storage density is relatively high (0.340 J·cm⁻³).

• Periodical: Advanced Materials Research (Volumes 989-994)
• Pages: 242-245
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.989-994.242
• Online since: July 2014
• Authors: Ya Jun Wang*, Jian Wen Zhai, Fang Fang Wang, Chang Gen Feng
• Keywords: Dielectric Constant, Energy Storage Density, Nano Ag, PVDF

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