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Correlation between aggregation structure of biaxially oriented polypropylene and its breakdown property
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Yuwei MA1, Lu CHENG1, Hongbo LIU1, Zhe XU1, Zhuo ZHANG2, Zhaoliang XING2, Xiying DAI2, Wenfeng LIU1
Insulating Materials | 2023, 56(1) : 1 - 7
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Insulating Materials | 2023, 56(1): 1-7
• Material Research •
Correlation between aggregation structure of biaxially oriented polypropylene and its breakdown property
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Yuwei MA1, Lu CHENG1, Hongbo LIU1, Zhe XU1, Zhuo ZHANG2, Zhaoliang XING2, Xiying DAI2, Wenfeng LIU1
Affiliations
  • 1State Key Laboratory of Power Equipment and Electrical Insulation, Xi'an Jiaotong University, Xi'an 714009, China
  • 2Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China
Published: 2023-01-20 doi: 10.16790/j.cnki.1009-9239.im.2023.01.001
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In order to explore the correlation between the aggregation structure of biaxially oriented polypropylene (BOPP) film and its breakdown property, and promote the localization of BOPP, the properties of four kinds of BOPP samples manufactured at home and abroad were compared by optical observation, X-ray diffraction (XRD), differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), impregnation, and DC breakdown experiments. The results show that the BOPP film with higher crystallinity and higher segment activation energy has a larger electric strength. Impregnating the BOPO film with benzyl toluene can change its aggregation structure and improve the electric strength of electrical weak point. Compared with similar international products, domestic BOPP films show the gap of low electric strength, small shape parameters, and many electrical weak point.

BOPP  /  aggregation structure  /  insulation breakdown
Yuwei MA, Lu CHENG, Hongbo LIU, Zhe XU, Zhuo ZHANG, Zhaoliang XING, Xiying DAI, Wenfeng LIU. Correlation between aggregation structure of biaxially oriented polypropylene and its breakdown property[J]. Insulating Materials, 2023 , 56 (1) : 1 -7 . DOI: 10.16790/j.cnki.1009-9239.im.2023.01.001
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2023.01.001
  • Receive Date：2021-11-22
  • Online Date：2025-11-21
  • Published：2023-01-20
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  • Received：2021-11-22
  • Revised：2022-01-22
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Affiliations
    1State Key Laboratory of Power Equipment and Electrical Insulation, Xi'an Jiaotong University, Xi'an 714009, China
    2Global Energy Interconnection Research Institute Co., Ltd., Beijing 102209, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2023.01.001
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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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