The effects of CNT alignment on electrical conductivity and mechanical properties of SWNT/epoxy nanocomposites
Wang, Qing1,2; Dai, Jianfeng1,2; Li, Weixue1,2; Wei, Zhiqiang1,2; Jiang, Jinlong1,2
2008-06
发表期刊COMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
卷号68期号:7-8页码:1644-1648
摘要The single-walled carbon nanotubes (SWNTs) filled nanocomposite SWNT/epoxy resin composite with good uniformity, dispersion and alignment of SWNTs and with different SWNTs concentrations was produced by solution casting technique. Subsequently, the semidried mixture was stretched repeatedly along one direction at a large draw-ratio of 50 for 100 times at ambient atmosphere manually to achieve a good alignment and to promote dispersion of SWNTs; in the composite matrix. Composite showed higher electrical conductivities and mechanical properties such as the Young's modulus and tensile strength along the stretched direction than perpendicular to it, and the electrical property of composite rise with the increase of SWNT concentration. The percolation threshold value of electrical conductivity along the stretching direction is lower than the value perpendicular to the SWNTs orientation. In addition, the anisotropic electric and mechanical properties results, SEM micrograph and the polarized Raman spectra of the SWNT/epoxy composite reveal that SWNTs were well dispersed and aligned in the composites by the repeated stretching process. (c) 2008 Elsevier Ltd. All rights reserved.
关键词nanocomposites electrical properties anisotropy scanning electron microscopy (SEM)
DOI10.1016/j.compscitech.2008.02.024
收录类别SCI ; SCIE
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Composites
WOS记录号WOS:000256135200007
出版者ELSEVIER SCI LTD
EI入藏号20081711219939
EI主题词Polymer matrix composites
EI分类号701.1 Electricity: Basic Concepts and Phenomena - 815.1 Polymeric Materials - 815.1.1 Organic Polymers - 931.2 Physical Properties of Gases, Liquids and Solids - 933.1 Crystalline Solids - 951 Materials Science
引用统计
被引频次:284[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/35515
专题能源与动力工程学院
材料科学与工程学院
理学院
通讯作者Dai, Jianfeng
作者单位1.Lanzhou Univ Technol, State Key Lab Adv Nonferrous Mat, Lanzhou 730050, Peoples R China
2.Lanzhou Univ, Dept Phys, Lanzhou 730050, Peoples R China
第一作者单位材料科学与工程学院;  理学院
通讯作者单位材料科学与工程学院;  理学院
第一作者的第一单位材料科学与工程学院
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GB/T 7714
Wang, Qing,Dai, Jianfeng,Li, Weixue,et al. The effects of CNT alignment on electrical conductivity and mechanical properties of SWNT/epoxy nanocomposites[J]. COMPOSITES SCIENCE AND TECHNOLOGY,2008,68(7-8):1644-1648.
APA Wang, Qing,Dai, Jianfeng,Li, Weixue,Wei, Zhiqiang,&Jiang, Jinlong.(2008).The effects of CNT alignment on electrical conductivity and mechanical properties of SWNT/epoxy nanocomposites.COMPOSITES SCIENCE AND TECHNOLOGY,68(7-8),1644-1648.
MLA Wang, Qing,et al."The effects of CNT alignment on electrical conductivity and mechanical properties of SWNT/epoxy nanocomposites".COMPOSITES SCIENCE AND TECHNOLOGY 68.7-8(2008):1644-1648.
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