Melt processing of SWCNT-polyimide nanocomposite fibers

被引:137
作者
Siochi, EJ [1 ]
Working, DC
Park, C
Lillehei, PT
Rouse, JH
Topping, CC
Bhattacharyya, AR
Kumar, S
机构
[1] NASA, Langley Res Ctr, Adv Mat & Proc Branch, Hampton, VA 23681 USA
[2] Natl Inst Aerosp, Hampton, VA 23666 USA
[3] Georgia Inst Technol, Sch Polymer Text & Fiber Engn, Atlanta, GA 30332 USA
关键词
carbon nanotube/polyimide nanocomposites;
D O I
10.1016/j.compositesb.2003.09.007
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Melt processing of SWCNT/Ultem nanocomposite fibers was demonstrated for fibers containing up to 1 wt% SWCNTs. High-resolution electron microscopy and Raman spectroscopy were used to evaluate the quality of SWCNT dispersion. SWCNT alignment in the fiber direction was induced by shear forces present during the melt extrusion and fiber drawing processes. This alignment resulted in significantly higher tensile moduli and yield stress in SWCNT/Ultem nanocomposite fibers relative to unoriented nanocomposite films having the same SWCNT concentration. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:439 / 446
页数:8
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