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Thermal conductive and insulating nonwoven fabric composite film synergistically enhanced by boron nitride nanosheets and silver nanoparticles
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Muyuan SONG1, Xiaolei LI1, Hongtao CHI1, Mei HUANG1, Shaoning LU1, 2, 3, Chuanguo MA1, 2, 3
Insulating Materials | 2024, 57(4) : 28 - 35
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Insulating Materials | 2024, 57(4): 28-35
Material Research
Thermal conductive and insulating nonwoven fabric composite film synergistically enhanced by boron nitride nanosheets and silver nanoparticles
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Muyuan SONG1, Xiaolei LI1, Hongtao CHI1, Mei HUANG1, Shaoning LU1, 2, 3, Chuanguo MA1, 2, 3
Affiliations
  • 1School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China
  • 2Guangxi Key Laboratory of Electronic Information Materials Structure-effectiveness Relationship, Guilin University of Electronic Technology, Guilin 541004, China
  • 3Engineering Research Center of Ministry of Education for Electronic Information Materials and Devices, Guilin University of Electronic Technology, Guilin 541004, China
Published: 2024-04-20 doi: 10.16790/j.cnki.1009-9239.im.2024.04.004
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To meet the growing demand for high thermal conductive and electrically insulating composites, a silver nanoparticles (AgNPs) modified nonwoven fabric (AgNPs@NWF) was prepared by polydopamine (PDA) modification and in situ reduction process using PET nonwoven fabric (NWF) as a template. The continuous boron nitride nanosheets (BNNS) thermal conductive network (BNNS@NWF) and AgNPs/BNNS synergistic thermal conductive network (AgNPs/BNNS@NWF) were constructed by adsorbing BNNS on the surfaces of NWF and AgNPs@NWF through the dispersion and interfacial bonding of nanocellulose through a cyclic impregnation adsorption and layer-by-layer assembly process. BNNS-AgNPs/BNNS-BNNS sandwich-structured thermal conductive composite films were prepared by hot pressing process with BNNS@NWF as the surface layer and AgNPs/BNNS@NWF as the intermediate layer, and their microstructure, thermal conductivity, insulating properties, mechanical properties, and actual thermal management performance is characterized and tested. The results show that a synergistic three-dimensional thermal conductive network of AgNPs/BNNS was constructed in the composite films, at the same time the insulating properties are ensured. When the mass fraction of BNNS and AgNPs is 34.8% and 3.3%, the in-plane thermal conductivity of the composite films reaches 7.56 W/(m·K), the volume resistivity reaches 3.54×1013 Ω·cm, and the mechanical properties is good. The actual application test show that the composite films have good thermal management performance.

thermal conductive composites  /  boron nitride nanosheets  /  silver nanoparticles  /  sandwich structure  /  thermal conductivity
Muyuan SONG, Xiaolei LI, Hongtao CHI, Mei HUANG, Shaoning LU, Chuanguo MA. Thermal conductive and insulating nonwoven fabric composite film synergistically enhanced by boron nitride nanosheets and silver nanoparticles[J]. Insulating Materials, 2024 , 57 (4) : 28 -35 . DOI: 10.16790/j.cnki.1009-9239.im.2024.04.004
Year 2024 volume 57 Issue 4
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doi: 10.16790/j.cnki.1009-9239.im.2024.04.004
  • Receive Date:2023-04-16
  • Online Date:2025-12-22
  • Published:2024-04-20
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  • Received:2023-04-16
  • Revised:2023-05-15
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Affiliations
    1School of Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China
    2Guangxi Key Laboratory of Electronic Information Materials Structure-effectiveness Relationship, Guilin University of Electronic Technology, Guilin 541004, China
    3Engineering Research Center of Ministry of Education for Electronic Information Materials and Devices, Guilin University of Electronic Technology, Guilin 541004, China
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表12种不同金属材料的力学参数

Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)

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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