Silica coating onto graphene for improving thermal conductivity and electrical insulation of graphene/polydimethylsiloxane nanocomposites

doi:10.1016/j.jmst.2018.09.016

CORC > 金属研究所 > 中国科学院金属研究所

	Silica coating onto graphene for improving thermal conductivity and electrical insulation of graphene/polydimethylsiloxane nanocomposites
	Shen, Chaoxuan 1,2; Wang, Han 1,2; Zhang, Tengxin 1,2; Zeng, You 1,2
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2019
卷号	35 期号:1 页码:36-43
关键词	Graphene Silica coating Nanocomposites Thermal conductivity Electrical insulations
ISSN号	1005-0302
DOI	10.1016/j.jmst.2018.09.016
通讯作者	Zeng, You(yzeng@imr.ac.cn)
英文摘要	Graphene possess extremely high thermal conductivity, and they have been regarded as prominent candidates to be used in thermal management of electronic devices. However, addition of graphene inevitably causes dramatic decrease in electrical insulation, which is generally unacceptable for thermal interface materials (TIMs) in real electronic industry. Developing graphene-based nanocomposites with high thermal conductivity and satisfactory electrical insulation is still a challenging issue. In this study, we developed a novel hybrid nanocomposite by incorporating silica-coated graphene nanoplatelets (Silica@GNPs) with polydimethylsiloxane (PDMS) matrix. The obtained Silica@GNP/PDMS composites showed satisfactory electrical insulation (electrical resistivity of over 10(13) Omega cm) and high thermal conductivity of 0.497 W m(-1) K-1, increasing by 155% compared with that of neat PDMS, even higher than that of GNP/PDMS composites. Such high thermal conductivity and satisfactory electrical insulation is mainly attributed to the insulating silica-coating, good compatibility between components, strong interfacial bonding, uniform dispersion, and high-efficiency heat transport pathways. There is great potential for the Silica@GNP/PDMS composites to be used as high-performance TIMs in electronic industry. (C) 2018 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	Ministry of Science and Technology of China[2012AA030303] ; Department of Science and Technology of Shenyang City[17-231-1-66] ; Hundred Talents Program of Chinese Academy of Sciences[CAS2012] ; Fund for Creative Research Groups[51221264] ; Fund of Shenyang National Laboratory for Materials Science[2015RP13] ; Fund of Shenyang National Laboratory for Materials Science[2017RP11]
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000449263900006
资助机构	Ministry of Science and Technology of China ; Department of Science and Technology of Shenyang City ; Hundred Talents Program of Chinese Academy of Sciences ; Fund for Creative Research Groups ; Fund of Shenyang National Laboratory for Materials Science
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/130397]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zeng, You
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Shen, Chaoxuan,Wang, Han,Zhang, Tengxin,et al. Silica coating onto graphene for improving thermal conductivity and electrical insulation of graphene/polydimethylsiloxane nanocomposites[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2019,35(1):36-43.
APA	Shen, Chaoxuan,Wang, Han,Zhang, Tengxin,&Zeng, You.(2019).Silica coating onto graphene for improving thermal conductivity and electrical insulation of graphene/polydimethylsiloxane nanocomposites.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,35(1),36-43.
MLA	Shen, Chaoxuan,et al."Silica coating onto graphene for improving thermal conductivity and electrical insulation of graphene/polydimethylsiloxane nanocomposites".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 35.1(2019):36-43.