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	Multiwalled Carbon Nanotube/Polyacrylonitrile Composite Fibers Prepared by In Situ Polymerization
	Zhou, Hua ; Tang, Xueyuan ; Dong, Yanming ; Dong YM(董炎明) ; Chen, Lifu ; Chen LF(陈立富) ; Zhang, Litong ; Wang, Wenrong ; Xiong, Xiaopeng ; Xiong XP(熊晓鹏)
	2010-11-24
关键词	multiwalled carbon nanotube polyacrylonitrile in situ polymerization composite fiber
英文摘要	Multi-walled carbon nanotubes (CNTs) were mixed with polyacrylonitrile (PAN) by in situ polymerization or by mechanically mixing. The mixtures were then wet-spun into fibers, respectively. The effects of mixing method on the interfacial bonding between the components in the fibers and the properties of the fiber were investigated by Raman spectroscopy, TEM, SEM, and tensile strength testing. By in situ polymerization mixing, a thin layer of PAN molecules is observed to cover the surface of the CNT, which increases the diameter of CNT evidently. Results of Raman spectroscopy indicate that the layer of PAN molecules are strongly attached onto the surface of CNT through grafting polymerization, leading to strong chemical bonding between CNTs and PAN matrix in the obtained fibers. In contrast, no obvious chemical interactions are observed between them in the fibers prepared by mechanically mixing. In both cases, the CNTs have significantly strengthened the PAN fibers. However, the fibers prepared from in situ polymerization mixing are much stronger because of the interfacial bonding effect between the PAN molecules and CNTs. (C) 2010 Wiley Periodicals, Inc. J Appl Polym Sci 120: 1385-1389, 2011; National Nature Science Foundation of China (NSFC)[50673082, 50532010]
语种	英语
出版者	WILEY-BLACKWELL
内容类型	期刊论文
源URL	[http://dx.doi.org/doi:10.1002/app.33218]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Zhou, Hua,Tang, Xueyuan,Dong, Yanming,et al. Multiwalled Carbon Nanotube/Polyacrylonitrile Composite Fibers Prepared by In Situ Polymerization[J],2010.
APA	Zhou, Hua.,Tang, Xueyuan.,Dong, Yanming.,董炎明.,Chen, Lifu.,...&熊晓鹏.(2010).Multiwalled Carbon Nanotube/Polyacrylonitrile Composite Fibers Prepared by In Situ Polymerization..
MLA	Zhou, Hua,et al."Multiwalled Carbon Nanotube/Polyacrylonitrile Composite Fibers Prepared by In Situ Polymerization".(2010).

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