Electrical conductivity of waxes as model systems for polyethylene: role of water
Electrical conductivity of waxes as model systems for polyethylene: role of water
Novel experimental and theoretical studies of the electrical conductivity of high-purity dodecane, paraffin wax and low density polyethylene are reported herein. The role of the charge density, water content and phase changes in determining conductivity as the temperature increases from 25 oC to 65 oC, a temperature range relevant to applications of insulating materials, is determined. Low levels of absorbed water determine the measured conductivity for T< 50 oC and this can be explained by taking account of the charge carriers produced by the auto-ionisation of water. In comparison to commercial polyethylene and lubricating oils, the temperature dependence of the conductivity of dry n-dodecane is anomalously high.
Electrical Conductivity, Waxes, Water
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Quirke, Nick
abc4aff2-25c6-4e50-be09-4ef24d638ff9
2 March 2020
Hosier, Ian
6a44329e-b742-44de-afa7-073f80a78e26
Vaughan, Alun
6d813b66-17f9-4864-9763-25a6d659d8a3
Quirke, Nick
abc4aff2-25c6-4e50-be09-4ef24d638ff9
Hosier, Ian, Vaughan, Alun and Quirke, Nick
(2020)
Electrical conductivity of waxes as model systems for polyethylene: role of water.
Journal of Applied Polymer Science, 137 (22), [48765].
(doi:10.1002/app.48765).
Abstract
Novel experimental and theoretical studies of the electrical conductivity of high-purity dodecane, paraffin wax and low density polyethylene are reported herein. The role of the charge density, water content and phase changes in determining conductivity as the temperature increases from 25 oC to 65 oC, a temperature range relevant to applications of insulating materials, is determined. Low levels of absorbed water determine the measured conductivity for T< 50 oC and this can be explained by taking account of the charge carriers produced by the auto-ionisation of water. In comparison to commercial polyethylene and lubricating oils, the temperature dependence of the conductivity of dry n-dodecane is anomalously high.
Text
Polymat1-AuthorsFinalProof
- Accepted Manuscript
More information
Accepted/In Press date: 17 November 2019
e-pub ahead of print date: 30 November 2019
Published date: 2 March 2020
Keywords:
Electrical Conductivity, Waxes, Water
Identifiers
Local EPrints ID: 436239
URI: http://eprints.soton.ac.uk/id/eprint/436239
ISSN: 0021-8995
PURE UUID: 3796d5e4-fed5-4eb8-ab29-93778f668aa2
Catalogue record
Date deposited: 04 Dec 2019 17:30
Last modified: 17 Mar 2024 05:06
Export record
Altmetrics
Contributors
Author:
Ian Hosier
Author:
Alun Vaughan
Author:
Nick Quirke
Download statistics
Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.
View more statistics