Effects of graphene nanoplatelet size and surface area on the AC electrical conductivity and dielectric constant of epoxy nanocomposites

Ravindran, Anil, Feng, Chuang, Huang, Shu, Wang, Yu, Zhao, Zhan and Yang, Jie 2018, Effects of graphene nanoplatelet size and surface area on the AC electrical conductivity and dielectric constant of epoxy nanocomposites, Polymers, vol. 10, no. 5, doi: 10.3390/polym10050477.

Attached Files
Name Description MIMEType Size Downloads

Title Effects of graphene nanoplatelet size and surface area on the AC electrical conductivity and dielectric constant of epoxy nanocomposites
Author(s) Ravindran, AnilORCID iD for Ravindran, Anil orcid.org/0000-0002-2255-195X
Feng, Chuang
Huang, Shu
Wang, Yu
Zhao, Zhan
Yang, Jie
Journal name Polymers
Volume number 10
Issue number 5
Total pages 17
Publisher MDPI
Place of publication Basel, Switzerland
Publication date 2018-04-27
ISSN 2073-4360
2073-4360
Keyword(s) dielectric constant
electrical conductivity
epoxy nanocomposites
graphene platelet
Science & Technology
Physical Sciences
Polymer Science
CARBON NANOTUBE/EPOXY COMPOSITES
POLYMER COMPOSITES
THERMAL-CONDUCTIVITY
PLATELETS GPLS
Z-PINS
ELECTROPHORETIC DEPOSITION
MULTIFUNCTIONAL PROPERTIES
MECHANICAL-PROPERTIES
YOUNGS MODULUS
OXIDE
Summary Epoxy nanocomposites reinforced with various grades of multilayer graphene nanoplatelets (GNPs) are manufactured and tested. The effects of size, surface area, and concentration of GNP, as well as alternating current (AC) frequency on the electrical and dielectric properties of epoxy nanocomposites are experimentally investigated. GNPs with larger size and surface area are always beneficial to increase the electrical conductivity of the composites. However, their effects on the dielectric constant are highly dependent on GNP concentration and AC frequency. At lower GNP concentration, the dielectric constant increases proportionally with the increase in GNP size, while decreasing as the AC frequency increases. At higher GNP concentration in epoxy, the dielectric constant first increases with the increase of the GNP size, but decreases thereafter. This trend is also observed for varying the processed GNP surface area on the dielectric constant. Moreover, the variations of the electrical conductivity and dielectric constant with the GNP concentration and AC frequency are then correlated with the measured interfiller spacing and GNP diameter.
Language eng
DOI 10.3390/polym10050477
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2018, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30123365

Document type: Journal Article
Collections: Institute for Frontier Materials
Open Access Checking
GTP Research
Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 4 times in TR Web of Science
Scopus Citation Count Cited 7 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 8 Abstract Views, 1 File Downloads  -  Detailed Statistics
Created: Thu, 27 Jun 2019, 09:53:32 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.