期刊
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
卷 41, 期 2, 页码 215-221出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesa.2009.10.019
关键词
Polymer-matrix composites; Thermal properties; Thermal analysis; Surface treatments
资金
- Instrumental Analysis Centre of Shanghai Jiao Tong University
Multi-walled carbon nanotubes (MWCNTs) were first treated by a 3:1 (v/v) mixture of concentrated H2SO4/HNO3, and then triethylenetetramine (TETA) grafting was carried out. Nano-sized silicon carbide particles (SiCnp) were modified by the silane coupling agent. Epoxy nanocomposites filled with hybrid fillet system containing TETA-functionalized MWCNTs and silane-modified SiCnp were prepared. The investigation on the thermal conductivity of epoxy nanocomposites filled with single filler system and hybrid filler system was performed. Chemical surface treatment is conducive to the enhancement of thermal conductivity of epoxy composites. The thermal conductivity of epoxy composites with hybrid filler system is higher than that of epoxy composites with any single filler system (functionalized MWCNTs or modified SiCnp), which is due to the effective combination of MWCNT-to-MWCNT and SiC(np)to-SiCnp conductive networks. Hybrid filler system could provide synergistic effect and cost reduction simultaneously. (C) 2009 Elsevier Ltd. All rights reserved.
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