Alignment of Carbon Nanotubes in Macroscopic Fibers

Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials Pub Date : 2002-10-02 DOI:10.1063/1.1514187

M. Lucas, B. Vigolo, S. Badaire, D. Bolloc'h, A. Marucci, D. Durand, M. Hamilton, C. Zakri, P. Poulin, P. Launois

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引用次数: 7

Abstract

A simple spinning process has been recently developed to assemble carbon nanotubes into long macroscopic fibers. Due to the high aspect ratio of the nanotubes, the fiber’s physical properties are expected to depend significantly on the nanotube orientation. The alignment of the nanotubes is studied by X‐ray scattering. It is characterized by the Full Width at Half Maximum (FWHM) of the azimuthal intensity distribution. Our first studies gave FWHM≈75°. Treatments developed to improve nanotube alignment, such as solvent‐wetting or drawing of the fibers, are reported here. Results obtained from nanotubes synthesized by the arc‐discharge method and by the HiPCO process are discussed. Stretched fibers processed with HiPCO single‐wall nanotubes exhibit FWHMs as low as 32°. Moreover, the above‐mentioned treatments induce a substantial increase (by a factor 4) of their Young’s modulus. An example of electromechanical actuation is reported.

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碳纳米管在宏观纤维中的排列

最近开发了一种简单的纺丝工艺，将碳纳米管组装成长长的宏观纤维。由于纳米管的高长宽比，纤维的物理性能很大程度上取决于纳米管的取向。用X射线散射研究了纳米管的排列。它的特征是方位强度分布的半极大宽(FWHM)。我们最初的研究给出了FWHM≈75°。本文报道了改善纳米管排列的处理方法，如溶剂润湿或拉伸纤维。讨论了用电弧放电法和HiPCO法合成纳米管的结果。用HiPCO单壁纳米管加工的拉伸纤维的fwhm低至32°。此外，上述处理诱导其杨氏模量的大幅增加(增加了4倍)。给出了一个机电驱动的实例。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Structural and Electronic Properties of Molecular Nanostructures. XVI International Winterschool on Electronic Properties of Novel Materials

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