期刊
CARBON
卷 49, 期 2, 页码 495-500出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2010.09.047
关键词
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资金
- National Natural Science Foundation of China [50825301, 50903034, 50903035, 20804014]
- State Key Laboratory of Material Processing and Die & Mould Technology of HUST
- China Scholarship Council [2009616052]
Silica-coated multi-walled carbon nanotubes (MWCNT@SiO2) were synthesized by a sol-gel method and then incorporated into an epoxy matrix. The less stiff silica intermediate shell on the MWCNTs not only alleviates the modulus mismatch between the stiff MWCNTs and the soft epoxy, but also improves the interaction between them. The thermal conductivities of the epoxy/MWCNT@SiO2 composites increase by 51% and 67% at low filler loadings of 0.5 wt.% and 1 wt.%, respectively. At the same time, the silica shell retains the high electrical resistivity of these composites. (C) 2010 Elsevier Ltd. All rights reserved.
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