Structure and Properties of Thermal Interface Films of Bacterial Cellulose/Alumina Oxide/Silica Modified Graphene Nanoplates

被引：0
|
作者：
Song P. [1 ]
Feng C. [1 ]
Zhang K. [1 ]
Bai L. [1 ]
Liu Z. [1 ]
Yang M. [1 ]
Yang W. [1 ]
机构：
[1] College of Polymer Science and Engineering, Stare Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu
来源：
Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering | 2021年 / 37卷 / 06期
关键词：
Thermal interface materials; Thermally conductive property; Through-plane heat conduction pathways;
D O I：
10.16865/j.cnki.1000-7555.2021.0167
中图分类号：
学科分类号：
摘要：
Nano-silica particles were grown on the surface of graphene nanoplates via in-situ growth method to improve the hydrophilicity of graphene nanoplates and the dispersibility in aqueous solution. Using 10% bacterial cellulose (BC), 60% spherical alumina oxide and 30% modified graphene nanoplates (SiO2@GNPs), BC/Al2O3/SiO2@GNPs composite films were prepared by vacuum-assisted filtration. The results show that the orientation of SiO2@GNPs in the thickness direction of the composite films can be effectively adjusted by changing the diameter ratio of spherical alumina oxide to SiO2@GNPs. With the increase of the diameter of spherical alumina oxide from 2 μm to 60 μm, the through-plane thermal conductivity of the films is increased from 0.5 W/(m•K) to 4.2 W/(m•K), showing an increase of 7.4 times. © 2021, Editorial Board of Polymer Materials Science & Engineering. All right reserved.
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页码：140 / 145
页数：5
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共 13 条
  • [1] Li A, Zhang C, Zhang Y F., Thermal conductivity of graphene-polymer composites: mechanisms, properties, and applications, Polymers, 9, pp. 437-454, (2017)
  • [2] Loeblein M, Tsang S H, Pawlik M, Et al., High-density 3D-boron nitride and 3D-graphene for high-performance nano-thermal interface material, ACS Nano, 11, pp. 2033-2044, (2017)
  • [3] Yao Y, Sun J, Zeng X, Et al., Construction of 3D skeleton for polymer composites achieving a high thermal conductivity, Small, 14, (2018)
  • [4] Uetani K, Ata S, Tomonoh S, Et al., Elastomeric thermal interface materials with high through-plane thermal conductivity from carbon fiber fillers vertically aligned by electrostatic flocking, Advanced Materials, 26, pp. 5857-5862, (2014)
  • [5] Dai W, Lv L, Lu J, Et al., A Paper-like inorganic thermal interface material composed of hierarchically structured graphene/silicon carbide nanorods, ACS Nano, 13, pp. 1547-1554, (2019)
  • [6] Mu M, Wan C, McNally T., Thermal conductivity of 2D nano-structured graphitic materials and their composites with epoxy resins, 2D Materials, 4, (2017)
  • [7] Liu B, Dong L, Xi Q, Et al., Thermal transport in organic/ inorganic composites, Frontiers in Energy, 12, pp. 72-86, (2018)
  • [8] Jun Y S, Um J G, Jiang G, Et al., Ultra-large sized graphene nano-platelets (GnPs) incorporated polypropylene (PP)/GnPs composites engineered by melt compounding and its thermal, mechanical, and electrical properties, Composites Part B: Engineering, 133, pp. 218-225, (2018)
  • [9] Liu Y, Wu K, Luo F, Et al., Significantly enhanced thermal conductivity in polyvinyl alcohol composites enabled by dopamine modified graphene nanoplatelets, Composites Part A: Applied Science and Manufacturing, 117, pp. 134-143, (2019)
  • [10] Liang C, Qiu H, Han Y, Et al., Superior electromagnetic interference shielding 3D graphene nanoplatelets/reduced graphene oxide foam/epoxy nanocomposites with high thermal conductivity, Journal of Materials Chemistry C, 7, pp. 2725-2733, (2019)
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