Crosslinking dependence of direct current breakdown performance for XLPE-PS composites at different temperatures
Crosslinking dependence of direct current breakdown performance for XLPE-PS composites at different temperatures
In this paper, crosslinked polyethylene-polystyrene (XLPE-PS) composites with different degrees of crosslinking were fabricated by using different crosslinking agent contents and their direct current (DC) breakdown performance at 30~90 oC was investigated. Results show that with the increase of the degree of crosslinking, the crystallinity of XLPE-PS composites decreases gradually, but
their DC breakdown strength demonstrates an increasing trend at 30~90 C and the enhancement also increases with the rise of temperature. And as the degree of crosslinking increases, the elastic modulus of XLPE-PS composites is reduced and the loss tangent peak temperature decreases but the peak shifts to a lower value, which reveals the suppression of the relaxation process for crystallites. It is believed that high DC breakdown strength with good temperature stability for XLPE-PS composites with a larger degree of crosslinking is attributable to the presence of PS and suppression in the formation of crystallites due to crosslinking.
Cao, Liang
8af33e65-08f3-46eb-906d-3131aef5d555
Zhong, Lisheng
62aada5d-79bc-48f1-8457-5e2d9b7d3519
Li, Yinge
42a3616f-ecb8-4cd0-8d8d-1ba53ee6698a
Gao, Jinghui
a889555a-5d68-408c-99c3-ed3934063cf8
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
10 January 2021
Cao, Liang
8af33e65-08f3-46eb-906d-3131aef5d555
Zhong, Lisheng
62aada5d-79bc-48f1-8457-5e2d9b7d3519
Li, Yinge
42a3616f-ecb8-4cd0-8d8d-1ba53ee6698a
Gao, Jinghui
a889555a-5d68-408c-99c3-ed3934063cf8
Chen, George
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Cao, Liang, Zhong, Lisheng, Li, Yinge, Gao, Jinghui and Chen, George
(2021)
Crosslinking dependence of direct current breakdown performance for XLPE-PS composites at different temperatures.
Polymer, 13, [polym13020219].
(doi:10.3390/polym13020219).
Abstract
In this paper, crosslinked polyethylene-polystyrene (XLPE-PS) composites with different degrees of crosslinking were fabricated by using different crosslinking agent contents and their direct current (DC) breakdown performance at 30~90 oC was investigated. Results show that with the increase of the degree of crosslinking, the crystallinity of XLPE-PS composites decreases gradually, but
their DC breakdown strength demonstrates an increasing trend at 30~90 C and the enhancement also increases with the rise of temperature. And as the degree of crosslinking increases, the elastic modulus of XLPE-PS composites is reduced and the loss tangent peak temperature decreases but the peak shifts to a lower value, which reveals the suppression of the relaxation process for crystallites. It is believed that high DC breakdown strength with good temperature stability for XLPE-PS composites with a larger degree of crosslinking is attributable to the presence of PS and suppression in the formation of crystallites due to crosslinking.
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Accepted/In Press date: 7 January 2021
Published date: 10 January 2021
Identifiers
Local EPrints ID: 473652
URI: http://eprints.soton.ac.uk/id/eprint/473652
ISSN: 0032-3861
PURE UUID: ea236c0d-3f4d-4179-aaa5-989e98e582ed
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Date deposited: 26 Jan 2023 17:45
Last modified: 16 Mar 2024 23:46
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Author:
Liang Cao
Author:
Lisheng Zhong
Author:
Yinge Li
Author:
Jinghui Gao
Author:
George Chen
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