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Synergistic toughening of composite fibres by self-alignment of reduced graphene oxide and carbon nanotubes

Author

Listed:
  • Min Kyoon Shin

    (Hanyang University)

  • Bommy Lee

    (Hanyang University)

  • Shi Hyeong Kim

    (Hanyang University)

  • Jae Ah Lee

    (Hanyang University)

  • Geoffrey M. Spinks

    (ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong)

  • Sanjeev Gambhir

    (ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong)

  • Gordon G. Wallace

    (ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong)

  • Mikhail E. Kozlov

    (The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas)

  • Ray H. Baughman

    (The Alan G. MacDiarmid NanoTech Institute, University of Texas at Dallas)

  • Seon Jeong Kim

    (Hanyang University)

Abstract

The extraordinary properties of graphene and carbon nanotubes motivate the development of methods for their use in producing continuous, strong, tough fibres. Previous work has shown that the toughness of the carbon nanotube-reinforced polymer fibres exceeds that of previously known materials. Here we show that further increased toughness results from combining carbon nanotubes and reduced graphene oxide flakes in solution-spun polymer fibres. The gravimetric toughness approaches 1,000 J g−1, far exceeding spider dragline silk (165 J g−1) and Kevlar (78 J g−1). This toughness enhancement is consistent with the observed formation of an interconnected network of partially aligned reduced graphene oxide flakes and carbon nanotubes during solution spinning, which act to deflect cracks and allow energy-consuming polymer deformation. Toughness is sensitive to the volume ratio of the reduced graphene oxide flakes to the carbon nanotubes in the spinning solution and the degree of graphene oxidation. The hybrid fibres were sewable and weavable, and could be shaped into high-modulus helical springs.

Suggested Citation

  • Min Kyoon Shin & Bommy Lee & Shi Hyeong Kim & Jae Ah Lee & Geoffrey M. Spinks & Sanjeev Gambhir & Gordon G. Wallace & Mikhail E. Kozlov & Ray H. Baughman & Seon Jeong Kim, 2012. "Synergistic toughening of composite fibres by self-alignment of reduced graphene oxide and carbon nanotubes," Nature Communications, Nature, vol. 3(1), pages 1-8, January.
    • Handle: RePEc:nat:natcom:v:3:y:2012:i:1:d:10.1038_ncomms1661
    DOI: 10.1038/ncomms1661
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    Cited by:

    1. Donghwan Ji & Joseph Liu & Jiayu Zhao & Minghao Li & Yumi Rho & Hwansoo Shin & Tae Hee Han & Jinhye Bae, 2024. "Sustainable 3D printing by reversible salting-out effects with aqueous salt solutions," Nature Communications, Nature, vol. 15(1), pages 1-12, December.

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