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Space charge dynamics in silica-based polyethylene nanocomposites

Space charge dynamics in silica-based polyethylene nanocomposites
Space charge dynamics in silica-based polyethylene nanocomposites
Nanodielectrics have been investigated recently as they have shown some improved dielectric properties that are important for high voltage insulation applications. One of these improvements is the reduction in space charge when the nanocomposites are subjected to high dc electric fields. It has been widely reported that the inclusion of nanoparticles in polyethylene can suppress the formation of space charge in the material. However, the detailed mechanisms that are responsible for the charge suppression are not known. In the present paper, charge dynamics in nanosilica based polyethylene nanocomposites have been observed using the pulsed electroacoustic technique. A range of electric fields have been applied to the nanocomposites with different nanosilica loading ratios to investigate the impact of the applied electric field on charge suppression. In addition the effect of surface treatment of nanosilica particles on charge dynamics has also been studied by comparing treated and untreated nanocomposites with the same loading ratio of nanosilica particles. The influence of charge dynamics, especially at higher applied electric fields, on electric breakdown of these nanocomposites has been discussed.
727-730
Institute of Electrical and Electronics Engineers Inc.
Wang, Yan
f64021d0-1658-417b-93a7-b59055bd76f9
Chen, Guanghui
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Wang, Yan
f64021d0-1658-417b-93a7-b59055bd76f9
Chen, Guanghui
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3

Wang, Yan, Chen, Guanghui and Vaughan, Alun (2014) Space charge dynamics in silica-based polyethylene nanocomposites. In 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP). Institute of Electrical and Electronics Engineers Inc. pp. 727-730 . (doi:10.1109/CEIDP.2014.6995777).

Record type: Conference or Workshop Item (Paper)

Abstract

Nanodielectrics have been investigated recently as they have shown some improved dielectric properties that are important for high voltage insulation applications. One of these improvements is the reduction in space charge when the nanocomposites are subjected to high dc electric fields. It has been widely reported that the inclusion of nanoparticles in polyethylene can suppress the formation of space charge in the material. However, the detailed mechanisms that are responsible for the charge suppression are not known. In the present paper, charge dynamics in nanosilica based polyethylene nanocomposites have been observed using the pulsed electroacoustic technique. A range of electric fields have been applied to the nanocomposites with different nanosilica loading ratios to investigate the impact of the applied electric field on charge suppression. In addition the effect of surface treatment of nanosilica particles on charge dynamics has also been studied by comparing treated and untreated nanocomposites with the same loading ratio of nanosilica particles. The influence of charge dynamics, especially at higher applied electric fields, on electric breakdown of these nanocomposites has been discussed.

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CEIDP_2014_Y.pdf - Accepted Manuscript
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More information

Published date: 29 December 2014
Venue - Dates: 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena, Des Moines, United States, 2014-10-19 - 2014-10-22
Organisations: EEE

Identifiers

Local EPrints ID: 373707
URI: https://eprints.soton.ac.uk/id/eprint/373707
PURE UUID: 32a2ad8d-675c-43be-8b95-18aa4c5c5620
ORCID for Alun Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

Catalogue record

Date deposited: 09 Feb 2015 11:31
Last modified: 05 Nov 2019 01:55

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Contributors

Author: Yan Wang
Author: Guanghui Chen
Author: Alun Vaughan ORCID iD

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