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Electrospinning of Carbon Nanotube Reinforced Nanocomposite Fibrils and Yarns

Published online by Cambridge University Press:  01 February 2011

Hoa Lam ,
Nick Titchenal ,
Nevin Naguib ,
Haihui Ye ,
Yury Gogotsi  and
Frank Ko
Hoa Lam
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
Nick Titchenal
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
Nevin Naguib
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
Haihui Ye
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
Yury Gogotsi
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
Frank Ko
Affiliation:
Drexel University, Department of Materials Science and Engineering andA. J. Drexel Nanotechnology Institute Philadelphia, PA 19104, U.S.A.
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Abstract

Single wall (SWNT) and multi-wall carbon nanotubes (MWNT) were electrostatically assembled into nanofibers through an electrospinning process in order to increase the strength and toughness of polyacrylonitrile (PAN)-derived carbon fibers. It was found that the effectiveness of carbon nanotubes (CNT) in reinforcing the PAN precursor is highly dependent on the dispersion and the alignment of the CNT. Alignment was achieved during electrospinning by the flow of polymer, electrostatic charge and diameter confinement. Up to 10 wt. % SWNT co-electrospun with PAN was successfully produced with fiber diameters in the range of 40 nm to 400 nm. With the addition of 1 wt. % SWNT, a two-fold increase in strength and modulus was obtained in the as-spun nanofibers mat. These encouraging results show a promising pathway to produce the next generation of high performance carbon fibers that will help bridge dimensional and properties gap between nanoscopic and macroscopic structures.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 791: Symposium Q – Mechanical Properties of Nanostructured Materials and Nanocomposites , 2003 , Q10.5
Copyright
Copyright © Materials Research Society 2004

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References

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