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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 |
ISSN | 0266-3538 |
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) |
DOI | 10.1016/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 | |
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 |
推荐引用方式 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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