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Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications
This paper evaluates the potential usage of graphene/crosslinked polyethylene (graphene/XLPE) as the insulating material for high voltage direct current (HVDC) cables. Thermal, mechanical and electrical properties of blends with/without graphene were evaluated by differential scanning calorimetry (D...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8438012/ https://www.ncbi.nlm.nih.gov/pubmed/34518571 http://dx.doi.org/10.1038/s41598-021-97328-x |
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author | Li, Yuan Zhu, Guangya Zhou, Kai Meng, Pengfei Wang, Guodong |
author_facet | Li, Yuan Zhu, Guangya Zhou, Kai Meng, Pengfei Wang, Guodong |
author_sort | Li, Yuan |
collection | PubMed |
description | This paper evaluates the potential usage of graphene/crosslinked polyethylene (graphene/XLPE) as the insulating material for high voltage direct current (HVDC) cables. Thermal, mechanical and electrical properties of blends with/without graphene were evaluated by differential scanning calorimetry (DSC), tensile strength, DC conductivity, space charge measurements and water tree aging test. The results indicate that 0.007–0.008% weight amount of graphene can improve the mechanical and electrical insulation properties of XLPE blends, namely higher tensile/yield strength, improved space charge distribution, and shorter/fewer water tree branches. The improvements mainly attribute to the high stiffness of graphene, deep traps introduced by the interaction zones of graphene and XLPE, and the blockage effect of graphene within XLPE. For thermal performance of XLPE blends, graphene nano-fillers have but limited improvement. The crystallinity of the blends barely changes with the addition of graphene. However, the crosslinking degree increases as the additive-like amounts of graphene doped. The above findings provide a guide for tailoring lightweight XLPE materials with excellent mechanical and electrical performances by doping them with a small amount of graphene. |
format | Online Article Text |
id | pubmed-8438012 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-84380122021-09-15 Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications Li, Yuan Zhu, Guangya Zhou, Kai Meng, Pengfei Wang, Guodong Sci Rep Article This paper evaluates the potential usage of graphene/crosslinked polyethylene (graphene/XLPE) as the insulating material for high voltage direct current (HVDC) cables. Thermal, mechanical and electrical properties of blends with/without graphene were evaluated by differential scanning calorimetry (DSC), tensile strength, DC conductivity, space charge measurements and water tree aging test. The results indicate that 0.007–0.008% weight amount of graphene can improve the mechanical and electrical insulation properties of XLPE blends, namely higher tensile/yield strength, improved space charge distribution, and shorter/fewer water tree branches. The improvements mainly attribute to the high stiffness of graphene, deep traps introduced by the interaction zones of graphene and XLPE, and the blockage effect of graphene within XLPE. For thermal performance of XLPE blends, graphene nano-fillers have but limited improvement. The crystallinity of the blends barely changes with the addition of graphene. However, the crosslinking degree increases as the additive-like amounts of graphene doped. The above findings provide a guide for tailoring lightweight XLPE materials with excellent mechanical and electrical performances by doping them with a small amount of graphene. Nature Publishing Group UK 2021-09-13 /pmc/articles/PMC8438012/ /pubmed/34518571 http://dx.doi.org/10.1038/s41598-021-97328-x Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Li, Yuan Zhu, Guangya Zhou, Kai Meng, Pengfei Wang, Guodong Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title | Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title_full | Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title_fullStr | Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title_full_unstemmed | Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title_short | Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
title_sort | evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8438012/ https://www.ncbi.nlm.nih.gov/pubmed/34518571 http://dx.doi.org/10.1038/s41598-021-97328-x |
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