| 碳纳米管的分散方法与分散机理 |
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| 引用本文： | 武玺旺,肖建中,夏风,胡永刚,彭周.碳纳米管的分散方法与分散机理[J].材料导报,2011,25(9). |
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| 作者姓名： | 武玺旺 肖建中 夏风 胡永刚 彭周 |
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| 作者单位： | 华中科技大学材料学院模具国家重点实验室; |
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| 基金项目： | 国家高技术研究发展计划(863计划)课题(2006AA03Z0443) |
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| 摘 要： | 要发挥碳纳米管的优异性能,如何均匀分散碳纳米管是首先要解决的关键性问题。通过研究碳纳米管的团聚体形态,看出碳纳米管团聚体为一维纳米线团聚态,比普通颗粒粉体的零维团聚态更复杂。碳纳米管分散方法大体上分为物理法与化学法两大类,对比研究碳纳米管的各种分散方法,分析碳纳米管的分散机理,提出了均匀分散碳纳米管要满足3个必要条件:打散碳纳米管团聚体、剪断长碳纳米管、保持碳纳米管分散状态。剪切挤出分散法可以较好地满足这3个条件,制备出均匀分散的碳纳米管复合粉体。
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| 关 键 词： | 碳纳米管 团聚体 分散方法 分散机理 |
Dispersion Methods and Dispersion Mechanism of Carbon Nanotubes |
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| WU Xiwang,XIAO Jianzhong,XIA Feng,HU Yonggang,PENG Zhou.Dispersion Methods and Dispersion Mechanism of Carbon Nanotubes[J].Materials Review,2011,25(9). |
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| Authors: | WU Xiwang XIAO Jianzhong XIA Feng HU Yonggang PENG Zhou |
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| Affiliation: | WU Xiwang,XIAO Jianzhong,XIA Feng,HU Yonggang,PENG Zhou(State Key Laboratory of Material Processing and Die/Mould Technology,Material Science and Technology Institute,Huazhong University of Science and Technology,Wuhan 430074) |
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| Abstract: | How to disperse carbon nanotubes(CNTs) homogeneously is a crucial problem,to display the excellent properties and make widespread use of CNTs.Agglomerates of CNTs witch are made up of cross-linked one-dimension nano-wire,are more complex than normal powder agglomerates.By comparing some kinds of dispersion methods,dispersion mechanism of CNTs are discussed.Then,three essential conditions are proposed to disperse CNTs: cutting short CNTs,breaking up agglomerates of CNTs and holding the dispersion state.Shear... |
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| Keywords: | carbon nanotubes agglomerate dispersion methods dispersion mechanism |
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