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首页> 外文期刊>Journal of nano research >Needleless Electrospinning System, an Efficient Platform to Fabricate Carbon Nanofibers
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Needleless Electrospinning System, an Efficient Platform to Fabricate Carbon Nanofibers

机译：无针静电纺丝系统，一种制造碳纳米纤维的高效平台

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In the present study, the effects of different parameters of needleless electrospinning systems on polyacrylonitrile (PAN) nanofibers morphology and diameter were studied. The electric field profile at the surface of the spinneret and electrospinning zone was evaluated by Finite Element Method. The PAN nanofibers were used as the precursor to fabricate carbon nanofibers. Scanning electron microscope (SEM), X-ray diffraction and Raman spectroscopy were used for electrospun nanofibers analysis. The results of electric field analysis indicated, in the spinning direction, the electric field was concentrated at the surface of the spinneret and decayed rapidly toward the surface of the collector. Increasing polymer solution concentration from 7.00 to 11.00 wt.% resulted increasing nanofibers diameter form 77.76 +/- 19.44 to 202.42 +/- 36.85. The results of X-ray diffraction and Raman spectroscopy show that heat treatments could convert needleless electrospun PAN nanofibers to carbon nanofibers.
机译：在本研究中，研究了无针电纺系统的不同参数对聚丙烯腈（PAN）纳米纤维的形态和直径的影响。通过有限元方法评估喷丝头和电纺区域表面的电场分布。 PAN纳米纤维被用作制造碳纳米纤维的前体。扫描电子显微镜（SEM），X射线衍射和拉曼光谱用于电纺纳米纤维分析。电场分析的结果表明，在纺丝方向上，电场集中在喷丝板的表面，并迅速向集电体表面衰减。将聚合物溶液浓度从7.00wt。％增加至导致纳米纤维直径从77.76 +/- 19.44增加至202.42 +/- 36.85。 X射线衍射和拉曼光谱的结果表明，热处理可以将无针电纺PAN纳米纤维转变为碳纳米纤维。

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