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Effect of multi-hindered phenolic antioxidant on DC breakdown behavior of XLPE insulation
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Dawei ZHANG, Wei YIN, Xun ZHANG
Insulating Materials | 2023, 56(1) : 8 - 13
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Insulating Materials | 2023, 56(1): 8-13
• Material Research •
Effect of multi-hindered phenolic antioxidant on DC breakdown behavior of XLPE insulation
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Dawei ZHANG, Wei YIN, Xun ZHANG
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  • State Grid Shanghai Electric Power Research Institute, Shanghai 200051, China
Published: 2023-01-20 doi: 10.16790/j.cnki.1009-9239.im.2023.01.002
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Hindered phenolic antioxidant is a main antioxidants commonly used in cross-linked polyethylene (XLPE) insulation to improve its processability and long-term electrical performance. In order to discuss the effect of hindered phenolic antioxidants on the DC breakdown behavior of XLPE insulation deeply, two kinds of XLPE insulation samples containing different multi-hindered phenolic antioxidants were prepared, and their properties were measured. The results show that the addition of hindered phenolic antioxidants can obviously improve the electric strength and breakdown stability of XLPE insulation, this is because the addition of hindered phenolic antioxidant can introduce deep traps into XLPE insulation and increase the trap density. However, the energy levels and types of deep traps introduced by the two multi-hindered phenolic antioxidant are different, therefore the effects of them on the improving the electric strength of XLPE insulation are different. In addition, the addition of hindered phenol antioxidant can improve the crystallinity and crystallization uniformity of XLPE, but the effect is not obvious.

cross-linked polyethylene  /  hindered phenolic antioxidant  /  DC breakdown characteristic  /  crystallinity  /  charge traps
Dawei ZHANG, Wei YIN, Xun ZHANG. Effect of multi-hindered phenolic antioxidant on DC breakdown behavior of XLPE insulation[J]. Insulating Materials, 2023 , 56 (1) : 8 -13 . DOI: 10.16790/j.cnki.1009-9239.im.2023.01.002
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doi: 10.16790/j.cnki.1009-9239.im.2023.01.002
  • Receive Date：2022-03-05
  • Online Date：2025-11-21
  • Published：2023-01-20
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  • Received：2022-03-05
  • Revised：2022-04-21
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    State Grid Shanghai Electric Power Research Institute, Shanghai 200051, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.01.002
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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