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Surface fluorinated epoxy resin for high voltage DC application

Surface fluorinated epoxy resin for high voltage DC application
Surface fluorinated epoxy resin for high voltage DC application
Charge accumulation under high voltage DC is a major concern in the transmission system as its presence distorts the local electric field. By performing chemical
treatment on polymeric insulation via fluorination process, the charge transport characteristics of the material can be modified. In doing so, excellent surface properties
of fluoropolymers can be attained without compromising the bulk properties of the original polymeric insulation. The change in chemical components at the surface of polymeric insulation should lead to a corresponding change in electrical properties at the surface and so suppress charge accumulation. In this paper, epoxy resin samples were formulated and treated with various surface fluorinating conditions. The samples then were characterised by scanning electron microscope (SEM), Raman spectroscopy and DC surface conductivity measurements. The surface potential decay measurement was performed and the result shows that there is a significant change in surface potential decay measurement with the introduction of surface fluorinated layer. The pulsed electroacoustic (PEA) measurement was used to further explain the decay mechanisms responsible for the observed phenomena. Surface DC flashover test using
a pair of finger electrodes had also been conducted. It has been found that the introduction of fluorinated surface layer on epoxy resins plays an important role in improving the surface dielectric properties as apparent from the experimental results.
surface treatment, acoustic pulses, epoxy resins, flashover
101-108
Mohamad, A.
da455387-212f-44a7-95a5-69f694227ebb
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhang, Yewen
24886a9e-2f4b-46e8-af65-bec64430a31a
An, Zhenlian
15a32466-bddd-4fa1-bf02-d4ba85018d62
Mohamad, A.
da455387-212f-44a7-95a5-69f694227ebb
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Zhang, Yewen
24886a9e-2f4b-46e8-af65-bec64430a31a
An, Zhenlian
15a32466-bddd-4fa1-bf02-d4ba85018d62

Mohamad, A., Chen, George, Zhang, Yewen and An, Zhenlian (2015) Surface fluorinated epoxy resin for high voltage DC application. IEEE Transactions on Dielectrics & Electrical Insulation, 22 (1), 101-108. (doi:10.1109/TDEI.2014.004574).

Record type: Article

Abstract

Charge accumulation under high voltage DC is a major concern in the transmission system as its presence distorts the local electric field. By performing chemical
treatment on polymeric insulation via fluorination process, the charge transport characteristics of the material can be modified. In doing so, excellent surface properties
of fluoropolymers can be attained without compromising the bulk properties of the original polymeric insulation. The change in chemical components at the surface of polymeric insulation should lead to a corresponding change in electrical properties at the surface and so suppress charge accumulation. In this paper, epoxy resin samples were formulated and treated with various surface fluorinating conditions. The samples then were characterised by scanning electron microscope (SEM), Raman spectroscopy and DC surface conductivity measurements. The surface potential decay measurement was performed and the result shows that there is a significant change in surface potential decay measurement with the introduction of surface fluorinated layer. The pulsed electroacoustic (PEA) measurement was used to further explain the decay mechanisms responsible for the observed phenomena. Surface DC flashover test using
a pair of finger electrodes had also been conducted. It has been found that the introduction of fluorinated surface layer on epoxy resins plays an important role in improving the surface dielectric properties as apparent from the experimental results.

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Accepted/In Press date: 17 September 2014
Published date: February 2015
Keywords: surface treatment, acoustic pulses, epoxy resins, flashover
Organisations: EEE

Identifiers

Local EPrints ID: 380102
URI: http://eprints.soton.ac.uk/id/eprint/380102
PURE UUID: 8acbb907-5868-4ae2-b280-c78f89563c6b

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Date deposited: 07 Sep 2015 09:50
Last modified: 02 Dec 2019 20:33

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Contributors

Author: A. Mohamad
Author: George Chen
Author: Yewen Zhang
Author: Zhenlian An

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