Improved properties of Carbon nanotube yarn spun from dense and long carbon nanotube forest

Yasuhiko Hayashi, Toru Iijima, Daisuke Suzuki, Hiroshi Kinoshita, Hisayoshi Oshima, Tomoharu Tokunaga

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Notable progress has been made recently on the properties and applications of Carbon nanotube (CNT). However, CNT has not achieved any remarkable practical applications from the industrial point of view. In this article, we report our recent progress on the bulk fiber structure of CNT yarn spun from the CNT forest. The unique fiber-like structure of CNT yarns gives them exceptional mechanical toughness, electrical conductivity, resilience to bending stress, and blend with polymer materials for a composite structure. CNT yarn, which is produced by spinning of high dense and relatively long CNT forest, has emerged as a new high-performance CNT-based bulk and composite material. We have made improvements in properties of CNT yarn by applying high voltage (HV) to the CNT yarn in a vacuum chamber. The tensile strengths of as-spun and HV-treated CNT yarns were 624 MPa and 955 MPa, respectively. The crystallization behavior of the amorphous carbon on CNTs was confirmed by a Transmission Electron Microscope (TEM). The CNT yarns provide them mechanical properties different from those of original high-performance fiber.

Original languageEnglish
Title of host publication5th International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2015 - Conference Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages298-301
Number of pages4
ISBN (Electronic)9781467396257
DOIs
Publication statusPublished - Mar 3 2016
Event5th International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2015 - Changchun, China
Duration: Oct 5 2015Oct 9 2015

Other

Other5th International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2015
CountryChina
CityChangchun
Period10/5/1510/9/15

Keywords

  • Bulk and composite material
  • Carbon nanotube (CNT)
  • Carbon nanotube forest
  • Carbon nanotube yarn
  • Transmission Electron Microscope (TEM)

ASJC Scopus subject areas

  • Instrumentation
  • Biotechnology
  • Industrial and Manufacturing Engineering
  • Mechanical Engineering
  • Electronic, Optical and Magnetic Materials

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  • Cite this

    Hayashi, Y., Iijima, T., Suzuki, D., Kinoshita, H., Oshima, H., & Tokunaga, T. (2016). Improved properties of Carbon nanotube yarn spun from dense and long carbon nanotube forest. In 5th International Conference on Manipulation, Manufacturing and Measurement on the Nanoscale, 3M-NANO 2015 - Conference Proceedings (pp. 298-301). [7425488] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/3M-NANO.2015.7425488