Open AccessCommunication—Enhanced Dielectric Constant of Polymer Composites via Regulating Thermal Reduction Treatment Time of Graphene Oxide
Author(s) -
Hui Liu,
Li Li,
Yi Chao Yan,
Qiang Lei,
Xin Meng
Publication year - 2022
Publication title -
ecs journal of solid state science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.488
H-Index - 51
eISSN - 2162-8777
pISSN - 2162-8769
DOI - 10.1149/2162-8777/ac479a
Subject(s) - materials science , graphene , polyvinylidene fluoride , dielectric , composite material , oxide , thermal conduction , percolation (cognitive psychology) , polymer , dielectric loss , nanotechnology , optoelectronics , neuroscience , metallurgy , biology
The addition of graphene can change the distribution of conductive pathways in the polymer composites and further affect the dielectric properties. In this work, a facile and environmentally friendly method was proposed to enhance dielectric properties by manipulating the reduction extent of reduced graphene oxide (RGO) in polyvinylidene fluoride (PVDF) matrix just through altering the thermal reduction treatment time. Measurement results showed that the electrical percolation occurred as thermal reduction treatment time increased and the conduction mechanism changed into approximate free electron model. RGO/PVDF composites with tailorable dielectric properties were realized with a low filler loading level.