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Strength and Electrical Conductivity of Carbon Nanotube Yarns

Published online by Cambridge University Press:  01 February 2011

Mark W Schauer ,
David Lashmore ,
Diana Lewis ,
Benjamin M. Lewis  and
Erick C. Towle
Mark W Schauer
Affiliation:
[email protected], Nanocomp Technologies, Concord, New Hampshire, United States
David Lashmore
Affiliation:
[email protected]
Diana Lewis
Affiliation:
[email protected], Nanocomp Technologies, Concord, New Hampshire, United States
Benjamin M. Lewis
Affiliation:
[email protected], Nanocomp Technologies, Concord, New Hampshire, United States
Erick C. Towle
Affiliation:
[email protected], Nanocomp Technologies, Concord, New Hampshire, United States
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Abstract

The strength and electrical conductivity of Carbon Nanotube (CNT) yarns is dramatically affected by the handling of the material after the nanotubes are produced. Our nanotube production process involving Chemical Vapor Deposition (CVD) using the floating catalyst method produces a mass of entangled bundles of single-walled nanotubes in a gas suspension. Simply collecting and spinning this material produces a yarn with strength and electrical conductivity far less than the properties of the individual nanotubes due to the poor alignment of the bundles on the microscopic scale. We have developed methods of aligning the CNT material that are analogous to the techniques used in the textile industry for spinning staple yarns, but modified to be appropriate for nano-scale material. The result is a dramatic improvement in strength and electrical conductivity of our CNT yarns.

Keywords

nanostructurestrengthelectrical properties
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1258: Symposia P/Q/R – Low-Dimensional Functional Nanostructures-Fabrication, Characterization and Applications , 2010 , 1258-R09-04
Copyright
Copyright © Materials Research Society 2010

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