Mechanical properties of densified untwisted carbon nanotube yarn / epoxy composites

Risa Yoshizaki, Kim Tae Sung, Atsushi Hosoi, Hiroyuki Kawada

    研究成果: Conference contribution

    抄録

    Carbon nanotubes (CNTs) have very high specific strength and stiffness. The excellent properties make it possible to enhance the mechanical properties of polymer matrix composites. However, it is difficult to use CNTs as the reinforcement of long fibers because of the limitation of CNT growth. In recent years, a method to spin yarns from CNT forests has developed. We have succeeded in manufacturing the unidirectional composites reinforced with the densified untwisted CNT yarns. The untwisted CNT yarns have been manufactured by drawing CNTs through a die from vertically aligned CNT arrays. In this study, the densified untwisted CNT yarns with a polymer treatment were fabricated. The tensile strength and the elastic modulus of the yarns were improved significantly by the treatment, and they were 1.9 GPa and 140 GPa, respectively. Moreover, the polymer treatment prevented the CNT yarns from swelling due to impregnation of the matrix resin. Finally, the high strength CNT yarn composites which have higher volume fraction than a conventional method were successfully fabricated.

    本文言語English
    ホスト出版物のタイトルASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
    出版社American Society of Mechanical Engineers
    1
    ISBN(印刷版)9780791856826
    DOI
    出版ステータスPublished - 2015
    イベントASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015 - Charlotte, United States
    継続期間: 2015 6 82015 6 12

    Other

    OtherASME 2015 International Manufacturing Science and Engineering Conference, MSEC 2015
    国/地域United States
    CityCharlotte
    Period15/6/815/6/12

    ASJC Scopus subject areas

    • 産業および生産工学

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