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Graphene/Alumina Micro-Nano Hybrid Network and Thermal Conductive and Electrical Insulating Silicone Rubber Composites
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Jingchao LI, Xiuying ZHAO, Xiaowang JI, Yonglai LU, Liqun ZHANG
Insulating Materials | 2021, 54(2) : 49 - 55
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Insulating Materials | 2021, 54(2): 49-55
• Special Issue on Thermal Conductive Insulating •
Graphene/Alumina Micro-Nano Hybrid Network and Thermal Conductive and Electrical Insulating Silicone Rubber Composites
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Jingchao LI, Xiuying ZHAO, Xiaowang JI, Yonglai LU, Liqun ZHANG
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  • State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
Published: 2021-02-20 doi: 10.16790/j.cnki.1009-9239.im.2021.02.009
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The increasingly developed microelectronic devices have put forward higher requirements on thermal conductive and electrical insulating thermal interface materials, and the silicone rubber composites with high thermal conductivity and electrical insulating can be prepared through construction of micro-nano hybrid heat conduction network. First, a nano-alumina coated graphene oxide was prepared by a simple and green self-assembly strategy, and it was reduced into TRGO@Al2O3 nano-hybrid filler by high temperature treatment. Then it was mixed with micron alumina and filled into liquid silicone rubber. The influence of different nano alumina coated amounts on the thermal conductivity and volume resistance of the system was studied by adjusting the ratio of nano alumina to graphene oxide. The synergistic thermal conductive effect of the micro-nano hybrid system was studied by controlling the ratio of nano-hybrid filler to micron alumina. The results show that when the 3% of TRGO@Al2O3 and 54% of micron alumina are compounded, the thermal conductivity of the composite reaches about 2.5 W/(m·K), and the volume resistance is greater than or equal to 109 Ω·cm.

thermal interface material  /  thermal conductive and electrical insulting  /  silicone rubber  /  graphene oxide  /  aluminum oxide
Jingchao LI, Xiuying ZHAO, Xiaowang JI, Yonglai LU, Liqun ZHANG. Graphene/Alumina Micro-Nano Hybrid Network and Thermal Conductive and Electrical Insulating Silicone Rubber Composites[J]. Insulating Materials, 2021 , 54 (2) : 49 -55 . DOI: 10.16790/j.cnki.1009-9239.im.2021.02.009
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doi: 10.16790/j.cnki.1009-9239.im.2021.02.009
  • Receive Date：2020-03-21
  • Online Date：2026-01-26
  • Published：2021-02-20
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  • Received：2020-03-21
  • Revised：2020-05-16
Affiliations
    State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
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https://castjournals.cast.org.cn/joweb/jycl/EN/10.16790/j.cnki.1009-9239.im.2021.02.009
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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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