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Effect of pre-treatment of nanofillers on the dielectric properties of epoxy nanocomposites

Effect of pre-treatment of nanofillers on the dielectric properties of epoxy nanocomposites
Effect of pre-treatment of nanofillers on the dielectric properties of epoxy nanocomposites
Early researches show that the nano filler dispersion has a significant effect on the dielectric properties of resulting epoxy nanocomposites. In this paper a comparative study on the dielectric permittivity, AC breakdown behaviours and glass transition temperature of epoxy nanocomposites loaded with both treated and untreated nano SiO2 fillers has been carried out. The epoxy resin (LY556), commonly used in power apparatus, was used to study the dielectric behaviour of epoxy. Silane was used as a coupling agent to pre-treat the nano particles. The results indicate that the surface treatment of nanoparticles has a strong effect on the dielectric properties of resulting nanocomposites as surface treated nanoparticles with better dispersions is believed to hinder the polymer chain mobility and charge transportation through the interface region between epoxy and nanoparticles.
1809-1816
Wang, Qi
ddfc62a2-708c-43b1-8eed-d68d4e87d96a
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wang, Qi
ddfc62a2-708c-43b1-8eed-d68d4e87d96a
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Wang, Qi and Chen, George (2014) Effect of pre-treatment of nanofillers on the dielectric properties of epoxy nanocomposites. IEEE Transactions on Dielectrics & Electrical Insulation, 21 (4), 1809-1816. (doi:10.1109/TDEI.2014.004278).

Record type: Article

Abstract

Early researches show that the nano filler dispersion has a significant effect on the dielectric properties of resulting epoxy nanocomposites. In this paper a comparative study on the dielectric permittivity, AC breakdown behaviours and glass transition temperature of epoxy nanocomposites loaded with both treated and untreated nano SiO2 fillers has been carried out. The epoxy resin (LY556), commonly used in power apparatus, was used to study the dielectric behaviour of epoxy. Silane was used as a coupling agent to pre-treat the nano particles. The results indicate that the surface treatment of nanoparticles has a strong effect on the dielectric properties of resulting nanocomposites as surface treated nanoparticles with better dispersions is believed to hinder the polymer chain mobility and charge transportation through the interface region between epoxy and nanoparticles.

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Accepted/In Press date: 18 April 2014
Published date: August 2014
Organisations: EEE

Identifiers

Local EPrints ID: 368827
URI: http://eprints.soton.ac.uk/id/eprint/368827
PURE UUID: 70b08890-2b3b-4fa8-a869-5998cf6c4ca3

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Date deposited: 13 Sep 2014 09:50
Last modified: 16 Dec 2019 20:23

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Author: Qi Wang
Author: George Chen

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