Electrospun polyacrylonitrile nanofibers containing a high concentration of well-aligned multiwall carbon nanotubes
Electrospun polyacrylonitrile nanofibers containing a high concentration of well-aligned multiwall carbon nanotubes
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DOI：
10.1021/cm0484955
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发表时间：
2005-03-08
影响因子：
8.6
通讯作者：
Cheng, SZD
中科院分区：
文献类型：
--
作者：
Hou, HQ;Ge, JJ;Cheng, SZD
采用移动捕收剂将多壁碳纳米管（MWCNTs）悬浮液置于二甲基甲酰胺中，采用静电纺丝法制备了排列良好的聚丙烯腈纳米纤维（PAN）复合纳米纤维片。利用扫描电子显微镜、原子力显微镜、透射电子显微镜（TEM）、红外光谱、拉曼光谱、x射线散射和Instron测试对纳米纤维片材进行了表征。透射电镜观察表明，纳米碳纳米管沿纳米纤维轴线平行取向。采用MWCNT填料增强复合纳米纤维的力学性能。碳化过程表明，高浓度的MWCNTs可以有效地抑制复合纳米纤维片的热收缩。
Composite nanofiber sheets of well-aligned polyacrylonitrile nanofibers (PAN) containing multiwall carbon nanotubes (MWCNTs) were prepared by electrospinning a MWCNT-suspended Solution of PAN in dimethyl formamide using a moving collector. Scanning electron microscopy, atomic force microscopy, transmission electron microscopy (TEM), IR spectroscopy, Raman spectroscopy, X-ray scattering, and the Instron test were used to characterize the nanofiber sheets. TEM observation showed the MWCNTs were parallel and oriented along the axes of the nanofibers. The mechanical properties of the composite nanofibers were reinforced by MWCNT fillers. Carbonization processes showed that a higher concentration of MWCNTs effectively resisted heat shrinkage of the composite nanofiber sheet.