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Journal of Nanomaterials
Volume 2013 (2013), Article ID 309617, 7 pages
http://dx.doi.org/10.1155/2013/309617
Research Article

Improved Processing of Carbon Nanotube Yarn

1Department of Chemical and Material Science Engineering, University of Cincinnati, Cincinnati, OH 45221-0012, USA
2Department of Mechanical Engineering, University of Cincinnati, Cincinnati, OH 45221-0072, USA

Received 22 October 2012; Accepted 10 March 2013

Academic Editor: Qian-Ming Gong

Copyright © 2013 Chaminda Jayasinghe et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

We compared mechanical and electrical properties of carbon nanotube (CNT) yarns formed from four different spinning methods. In these methods, a yarn was spun from two aligned CNT arrays. CNT yarns fabricated from each method were tested quantitatively through the mechanical and electrical properties and reported. This improvement is considered to be caused by multiple factors, such as reduction of the yarn diameter, densification, water evaporation, and CNT orientation. The best electrical and mechanical property of CNT yarn was observed from the fourth spinning method where heating and tension during spinning were applied. The introduced yarn spinning methods are appropriate for continuous mass production of high strength carbon nanotube yarns with controlled diameter, strength, and electrical conductivity.