Thermal-oxidative ageing effect on electrical performance of polypropylene/elastomer blends
Thermal-oxidative ageing effect on electrical performance of polypropylene/elastomer blends
Polypropylene (PP) is a promising candidate for high voltage direct current (HVDC) cables because of its overall low cost and recyclable nature, but currently limited in real use due to its high stiffness. A propylene-based elastomer (PBE), DOW VERSIFYTM 2200 was introduced to compensate for this limitation. Meanwhile, the influence of this elastomer component to the lifetime was investigated by thermal-oxidative ageing at a high temperature of 150 ℃. The chemical changes were characterised by Fourier-Transform Infrared (FTIR) spectroscopy to investigate the extent of ageing. Space charge accumulation behaviour was estimated by the pulsed electro-acoustic (PEA) method and the influence of the elastomer fraction on charge accumulation and decay of PP/elastomer blends was investigated. There is very clear charge injection in PP/elastomer blends, compared to pure PP, which further increases with increased ageing time in the bulk of samples. The DC breakdown strength (BDS) shows an increase with the addition of the elastomer component and keeps increasing for samples at an early stage of the ageing process, before declining as a function of ageing time.
DC BREAKDOWN STRENGTH, POLYPROPYLENE/ELASTOMER BLENDS, SPACE CHARGE DYNAMIC, THERMAL-OXIDATIVE AGEING
587-592
Wu, Xiwen
cfe7238e-9e2c-4c1e-b0b5-e3e6738fbeaf
Andritsch, Thomas
8681e640-e584-424e-a1f1-0d8b713de01c
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
28 August 2023
Wu, Xiwen
cfe7238e-9e2c-4c1e-b0b5-e3e6738fbeaf
Andritsch, Thomas
8681e640-e584-424e-a1f1-0d8b713de01c
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wu, Xiwen, Andritsch, Thomas and Chen, George
(2023)
Thermal-oxidative ageing effect on electrical performance of polypropylene/elastomer blends.
In ISH 2023.
vol. 2023,
.
(doi:10.1049/icp.2024.0585).
Record type:
Conference or Workshop Item
(Paper)
Abstract
Polypropylene (PP) is a promising candidate for high voltage direct current (HVDC) cables because of its overall low cost and recyclable nature, but currently limited in real use due to its high stiffness. A propylene-based elastomer (PBE), DOW VERSIFYTM 2200 was introduced to compensate for this limitation. Meanwhile, the influence of this elastomer component to the lifetime was investigated by thermal-oxidative ageing at a high temperature of 150 ℃. The chemical changes were characterised by Fourier-Transform Infrared (FTIR) spectroscopy to investigate the extent of ageing. Space charge accumulation behaviour was estimated by the pulsed electro-acoustic (PEA) method and the influence of the elastomer fraction on charge accumulation and decay of PP/elastomer blends was investigated. There is very clear charge injection in PP/elastomer blends, compared to pure PP, which further increases with increased ageing time in the bulk of samples. The DC breakdown strength (BDS) shows an increase with the addition of the elastomer component and keeps increasing for samples at an early stage of the ageing process, before declining as a function of ageing time.
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Published date: 28 August 2023
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Publisher Copyright:
© The Institution of Engineering & Technology 2023.
Venue - Dates:
23rd International Symposium on High Voltage Engineering, ISH 2023, , Glasgow, United Kingdom, 2023-08-28 - 2023-09-01
Keywords:
DC BREAKDOWN STRENGTH, POLYPROPYLENE/ELASTOMER BLENDS, SPACE CHARGE DYNAMIC, THERMAL-OXIDATIVE AGEING
Identifiers
Local EPrints ID: 509923
URI: http://eprints.soton.ac.uk/id/eprint/509923
PURE UUID: e9dbf6cb-8014-4cd1-bbe1-8e4f30ed048c
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Date deposited: 10 Mar 2026 17:58
Last modified: 11 Mar 2026 02:46
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Author:
Xiwen Wu
Author:
Thomas Andritsch
Author:
George Chen
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