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Carbon nanotube dry adhesives with temperature-enhanced adhesion over a large temperature range

Author

Listed:
  • Ming Xu

    (Center of Advanced Science and Engineering for Carbon (Case4Carbon), Case Western Reserve University
    State Key Laboratory of Materials Processing and Die & Mold Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology (HUST))

  • Feng Du

    (Center of Advanced Science and Engineering for Carbon (Case4Carbon), Case Western Reserve University)

  • Sabyasachi Ganguli

    (Materials and Manufacturing Directorate, Air Force Research Laboratory)

  • Ajit Roy

    (Materials and Manufacturing Directorate, Air Force Research Laboratory)

  • Liming Dai

    (Center of Advanced Science and Engineering for Carbon (Case4Carbon), Case Western Reserve University
    BUCT-CWRU International Joint Laboratory, College of Energy, Beijing University of Chemical Technology (CWRU))

Abstract

Conventional adhesives show a decrease in the adhesion force with increasing temperature due to thermally induced viscoelastic thinning and/or structural decomposition. Here, we report the counter-intuitive behaviour of carbon nanotube (CNT) dry adhesives that show a temperature-enhanced adhesion strength by over six-fold up to 143 N cm−2 (4 mm × 4 mm), among the strongest pure CNT dry adhesives, over a temperature range from −196 to 1,000 °C. This unusual adhesion behaviour leads to temperature-enhanced electrical and thermal transports, enabling the CNT dry adhesive for efficient electrical and thermal management when being used as a conductive double-sided sticky tape. With its intrinsic thermal stability, our CNT adhesive sustains many temperature transition cycles over a wide operation temperature range. We discover that a ‘nano-interlock’ adhesion mechanism is responsible for the adhesion behaviour, which could be applied to the development of various dry CNT adhesives with novel features.

Suggested Citation

  • Ming Xu & Feng Du & Sabyasachi Ganguli & Ajit Roy & Liming Dai, 2016. "Carbon nanotube dry adhesives with temperature-enhanced adhesion over a large temperature range," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13450
    DOI: 10.1038/ncomms13450
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