Fabrication and Applications of Carbon Nanotube Fibers

Title
Fabrication and Applications of Carbon Nanotube Fibers
Authors
추헌고정연수정영진김환철구본철
Keywords
carbon nanotube yarn; fiber; direct spinning; forest spinning
Issue Date
2012-10
Publisher
Carbon Letters
Citation
VOL 13, NO 4, 191-204
Abstract
Carbon nanotubes (CNTs) have exceptional mechanical, electrical, and thermal properties compared with those of commercialized high-performance fibers. For use in the form of fabrics that can maintain such properties, individual CNTs should be held together in fibers or made into yarns twisted out of the fibers. Typical methods that are used for such purposes include (a) surfactant-based coagulation spinning, which injects a polymeric binder between CNTs to form fibers; (b) liquid-crystalline spinning, which uses the nature of CNTs to form liquid crystals under certain conditions; (c) direct spinning, which can produce CNT fibers or yarns at the same time as synthesis by introducing a carbon source into a vertical furnace; and (d) forest spinning, which draws and twists CNTs grown vertically on a substrate. However, it is difficult for those CNT fibers to express the excellent properties of individual CNTs as they are. As solutions to this problem, post-treatment processes are under development for improving the production process of CNT fibers or enhancing their properties. This paper discusses the recent methods of fabricating CNT fibers and examines some post-treatment processes for property enhancement and their applications.
URI
http://pubs.kist.re.kr/handle/201004/43451
ISSN
19764251
Appears in Collections:
KIST Publication > ETC
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