Al@SiO₂ Core-Shell Fillers Enhance Dielectric Properties of Silicone Composites.

ABSTRACT: Over the past decade, there has been significant interest in polysiloxane-based dielectric elastomers as promising soft electroactive materials. Nevertheless, the natural low permittivity of polydimethylsiloxane has limited its practical applications. In this study, we have developed silicone rubber/Al@SiO₂ composites with a high dielectric constant, low dielectric loss, and high electrical breakdown strength by controlling the shell layer thickness and the content of the core-shell filler. We also investigated the dielectric behavior of the composites. The use of core-shell fillers has increased the Maxwell-Wagner-Sillars (MWS) relaxation process while reducing the dielectric loss of direct current conductance in silicone rubber composites. Moreover, the temperature dependence

SUBMITTER: Huang B 

PROVIDER: S-EPMC10536023 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature