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High thermal conductive composite insulating paper prepared by boron nitride nanotubes and aramid nanofibers
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Junwen REN1, Qiuwanyu QING1, Jia WEI1, Ran ZHUO2, Fuli TENG1, Meng GAO2, Chao BIAN1, Shenli JIA1
Insulating Materials | 2024, 57(11) : 65 - 72
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Insulating Materials | 2024, 57(11): 65-72
• Special Issue on Key Materials and Technology for New Energy Vehicles •
High thermal conductive composite insulating paper prepared by boron nitride nanotubes and aramid nanofibers
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Junwen REN1, Qiuwanyu QING1, Jia WEI1, Ran ZHUO2, Fuli TENG1, Meng GAO2, Chao BIAN1, Shenli JIA1
Affiliations
  • 1College of Electrical Engineering, Sichuan University, Chengdu 610065, China
  • 2Electric Power Research Institute of CSG, Guangzhou 510623, China
Published: 2024-11-20 doi: 10.16790/j.cnki.1009-9239.im.2024.11.007
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With the development of modern electrical equipment toward miniaturization, high-degree integration, and multi-functionalization, a large amount of heat accumulation will lead to insulation failure of electrical equipment. In order to develop a composite that can achieve high thermal conductivity even with low filler content (mass fraction<50%) and meet the strict requirement of current electrical equipment for heat dissipation, a composite insulating paper composed of aramid nanofibers and hydroxylated boron nitride nanotubes （BNNT-OH） was synthesized in this paper, and the effects of BNNT-OH content on the properties of composite insulating paper were studied. The results show that when the mass fraction of boron nitride nanotubes is 20%, the thermal conductivity of composite insulating paper is as high as 15.92 W/(m·K). The excellent thermal conductivity is due to the high intrinsic thermal conductivity of boron nitride nanotubes, and that the strong interaction between hydroxylated boron nitride nanotubes and aramid nanofibers reduces the interfacial thermal resistance.

boron nitride nanotubes  /  aramid nanofibers  /  insulating paper  /  thermal conductivity  /  interfacial thermal resistance
Junwen REN, Qiuwanyu QING, Jia WEI, Ran ZHUO, Fuli TENG, Meng GAO, Chao BIAN, Shenli JIA. High thermal conductive composite insulating paper prepared by boron nitride nanotubes and aramid nanofibers[J]. Insulating Materials, 2024 , 57 (11) : 65 -72 . DOI: 10.16790/j.cnki.1009-9239.im.2024.11.007
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Year 2024 volume 57 Issue 11
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Article Info
doi: 10.16790/j.cnki.1009-9239.im.2024.11.007
  • Receive Date：2024-06-13
  • Online Date：2025-12-24
  • Published：2024-11-20
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  • Received：2024-06-13
  • Revised：2024-08-02
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    1College of Electrical Engineering, Sichuan University, Chengdu 610065, China
    2Electric Power Research Institute of CSG, Guangzhou 510623, China
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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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