Open AccessEffects of interaction between filler and resin on the glass transition and dielectric properties of epoxy resin nanocomposites
Author(s) -
Mori Keigo,
Hirai Naoshi,
Ohki Yoshimichi,
Otake Yasutomo,
Umemoto Takahiro,
Muto Hirotaka
Publication year - 2019
Publication title -
iet nanodielectrics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.23
H-Index - 9
ISSN - 2514-3255
DOI - 10.1049/iet-nde.2018.0041
Subject(s) - epoxy , filler (materials) , glass transition , materials science , nanocomposite , composite material , polymer , dielectric , permittivity , conductivity , chemistry , optoelectronics
Polymer nanocomposites are known to exhibit superior insulation performance. As a reason for this, interactions at the filler/polymer interfaces are widely believed. To obtain information on this, the glass transition temperature ( T g ), complex permittivity ( ε *), and conductivity ( σ ) were measured in various epoxy resin nanocomposites. As a result, all the parameters ( T g , ε *, and σ ) decrease when the filler is MgO, whereas T g decreases and ε * and σ increase when the filler is TiO 2 . This fact clearly indicates that the filler exerts significant influences on various properties such as molecular motions in the host epoxy resin, and that these influences differ profoundly depending on the filler material.