期刊
COMPOSITES PART B-ENGINEERING
卷 178, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2019.107489
关键词
Composite film; Graphene; Nanofibrillated cellulose; Bridging effect
资金
- National Natural Science Foundation of China of China [51873083, 51573201]
- Opening Project of State Key Laboratory of Polymer Materials Engineering (Sichuan University) [sklpme2018-4-27]
- Key University Science Research Project of Jiangsu Province [18KJA130001]
- Six Talent Peaks Project in Jiangsu Province [2015-XCL-028]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX19_0584, SJCX18_0759]
Polymer composites with high thermal conductivity and good electrical insulation property exhibit great potential applications in electronic packing field. Herein, we report a composite film through functional Al2O3 (f-Al2O3) deposited graphene as fillers to regulate both the thermal conductivity and the electrical insulation property of nanofibrillated cellulose (NFC). The bridging effect of f-Al2O3 among graphene increased the number of heat conduction paths, thus improved the thermal conductivity of obtained f-Al2O3@RGO/NFC composite. The maximum in-plane thermal conductivity of obtained composite film is up to 8.3 W m(-1) K-1, representing the enhancement of 1975% compared with the pure NFC. At the same time, owing to the inherent insulating property of Al2O3, the composite exhibited excellent electrical insulation property due to the inherent insulation property of Al2O3. This facile and scalable strategy could pave the way for the fabrication of thermal management materials in the next-generation electrical packing field.
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