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
Source PublicationCOMPOSITES SCIENCE AND TECHNOLOGY
ISSN0266-3538
Volume68Issue:7-8Pages:1644-1648
AbstractThe 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.
Keywordnanocomposites electrical properties anisotropy scanning electron microscopy (SEM)
DOI10.1016/j.compscitech.2008.02.024
Indexed BySCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Composites
WOS IDWOS:000256135200007
PublisherELSEVIER SCI LTD
EI Accession Number20081711219939
EI Classification Number701.1 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
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Cited Times:257[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.lut.edu.cn/handle/2XXMBERH/35515
Collection能源与动力工程学院
材料科学与工程学院
理学院
Corresponding AuthorDai, Jianfeng
Affiliation1.Lanzhou Univ Technol, State Key Lab Adv Nonferrous Mat, Lanzhou 730050, Peoples R China
2.Lanzhou Univ, Dept Phys, Lanzhou 730050, Peoples R China
First Author AffilicationColl Mat Sci & Engn;  Coll Sci
Corresponding Author AffilicationColl Mat Sci & Engn;  Coll Sci
First Signature AffilicationColl Mat Sci & Engn
Recommended Citation
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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