A facile method to prepare flexible boron nitride/poly(vinyl alcohol) composites with enhanced thermal conductivity

被引：171
作者：
Zhang, Jun [1 ,2 ]
Wang, Xiaona [1 ]
Yu, Cuiping [1 ]
Li, Qiulong [1 ]
Li, Zhuo [3 ]
Li, Chaowei [1 ]
Lu, Huifen [1 ]
Zhang, Qichong [1 ]
Zhao, Jingxin [1 ]
Hu, Ming [4 ]
Yao, Yagang [1 ]
机构：
[1] Chinese Acad Sci, Suzhou Inst Nanotech & Nanobion, CAS Ctr Excellence Nanosci, Div Adv Nanomat,Key Lab Nanodevices & Applicat, Suzhou 215123, Peoples R China
[2] Shanxi Normal Univ, Sch Chem & Mat Sci, Key Lab Magnet Mol & Magnet Informat Mat, Minist Educ,Res Inst Mat Sci,Collaborat Innovat C, Linfen 041004, Peoples R China
[3] Fudan Univ, Dept Mat Sci, 220 Handan Rd, Shanghai 200433, Peoples R China
[4] Rhein Westfal TH Aachen, Fac Georesources & Mat Engn, Div Mat Sci & Engn, Inst Mineral Engn, D-52064 Aachen, Germany
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2017年 / 149卷
基金：
中国国家自然科学基金;
关键词：
Hybrid composites; Thermal properties; Anisotropy; Scanning electron microscopy; Casting; MECHANICAL-PROPERTIES; POLYMER NANOCOMPOSITES; NITRIDE; FILMS; NANOSHEETS; POLYIMIDE;
D O I：
10.1016/j.compscitech.2017.06.008
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Polymer infiltrating filler-network has been actively researched recently to obtain composite materials with enhanced thermal conductivities. However, the long infiltration time blocks its wide application. In this study, we prepared hexagonal boron nitride (h-BN)/poly(vinyl alcohol) (PVA) composite by combining polymer infiltration with filler diffusion through the polymer to reduce infiltration time and form heat conduction paths. Base on this process, the maximum thermal conductivities of the obtained h-BN/PVA composites were 1.63 W/m.K and 8.44 W/m.K along the through-plane and in-plane directions, respectively. In addition, the composites displayed excellent heat dissipation performance when attached on top of a light emitting diode (LED) light strip. The research results indicate our approach is facile and capable of fabricating high performance thermal interface materials. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：41 / 47
页数：7
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