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On the Temperature Dependence of Electrical and Mechanical Properties of Recyclable Cable Insulation Materials based upon Polyethylene Blends

On the Temperature Dependence of Electrical and Mechanical Properties of Recyclable Cable Insulation Materials based upon Polyethylene Blends
On the Temperature Dependence of Electrical and Mechanical Properties of Recyclable Cable Insulation Materials based upon Polyethylene Blends
Crosslinked polyethylene (XLPE) has been used as cable insulation since the 1960s, due to its favourable combination of electrical and mechanical properties. However, a fundamental consequence of crosslinking is limited recyclability. Although technologies are being developed to facilitate the re-use of XLPE at the end of its service life, such approaches are inferior to a fully recyclable alternative. In this paper, we report on the use of binary blends of linear (LPE) and branched (BPE)polyethylenes as possible replacement materials for XLPE, since such systems have the potential to combine comparable mechanical properties and enhanced breakdown strength with recyclability. Specifically, we consider the thin film AC ramp breakdown behaviour as a function of temperature up to 90 oC; the behaviour of a non-isothermally crystallized blend is contrasted with that of the constituent BPE in virgin and crosslinked states. These data are augmented with dynamic mechanical thermal analysis. In concert, these data indicate that, with appropriate morphological control, the blended thermoplastic material can exhibits superior properties to XLPE within the temperature range studied.
36-39
Green, C.D.
f707de01-55ae-46d2-b765-f2ed913f1347
Vaughan, A.S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Stevens, G.C.
553a8207-c288-4435-8bdb-547d6df6e8f0
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b
Geussens, T.
43003ec0-1fe3-4def-9542-cb3931c6a395
Fairhurst, M.J.
9a258985-8a98-4d0a-b33a-e12929b55911
Green, C.D.
f707de01-55ae-46d2-b765-f2ed913f1347
Vaughan, A.S.
6d813b66-17f9-4864-9763-25a6d659d8a3
Stevens, G.C.
553a8207-c288-4435-8bdb-547d6df6e8f0
Sutton, S.J.
571c7136-1eb6-44e1-8979-ca0829469a6b
Geussens, T.
43003ec0-1fe3-4def-9542-cb3931c6a395
Fairhurst, M.J.
9a258985-8a98-4d0a-b33a-e12929b55911

Green, C.D., Vaughan, A.S., Stevens, G.C., Sutton, S.J., Geussens, T. and Fairhurst, M.J. (2011) On the Temperature Dependence of Electrical and Mechanical Properties of Recyclable Cable Insulation Materials based upon Polyethylene Blends. 2011 Conference on Electrical Insulation and Dielectric Phenomena, Cancun, Mexico. 15 - 18 Oct 2011. pp. 36-39 .

Record type: Conference or Workshop Item (Paper)

Abstract

Crosslinked polyethylene (XLPE) has been used as cable insulation since the 1960s, due to its favourable combination of electrical and mechanical properties. However, a fundamental consequence of crosslinking is limited recyclability. Although technologies are being developed to facilitate the re-use of XLPE at the end of its service life, such approaches are inferior to a fully recyclable alternative. In this paper, we report on the use of binary blends of linear (LPE) and branched (BPE)polyethylenes as possible replacement materials for XLPE, since such systems have the potential to combine comparable mechanical properties and enhanced breakdown strength with recyclability. Specifically, we consider the thin film AC ramp breakdown behaviour as a function of temperature up to 90 oC; the behaviour of a non-isothermally crystallized blend is contrasted with that of the constituent BPE in virgin and crosslinked states. These data are augmented with dynamic mechanical thermal analysis. In concert, these data indicate that, with appropriate morphological control, the blended thermoplastic material can exhibits superior properties to XLPE within the temperature range studied.

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More information

Published date: 16 October 2011
Additional Information: Event Dates: 16-19 October 2011
Venue - Dates: 2011 Conference on Electrical Insulation and Dielectric Phenomena, Cancun, Mexico, 2011-10-15 - 2011-10-18
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272943
URI: http://eprints.soton.ac.uk/id/eprint/272943
PURE UUID: 03efa83f-e373-47d3-af7b-c3338b88c985
ORCID for A.S. Vaughan: ORCID iD orcid.org/0000-0002-0535-513X

Catalogue record

Date deposited: 20 Oct 2011 13:49
Last modified: 09 Jan 2022 03:03

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Contributors

Author: C.D. Green
Author: A.S. Vaughan ORCID iD
Author: G.C. Stevens
Author: S.J. Sutton
Author: T. Geussens
Author: M.J. Fairhurst

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