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Radial deformation and adhesion of carbon nanotube

碳纳米管的径向变形与黏附

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Abstract

The van der Waals (vdW) interactions of carbon nanotube (CNT)-substrate and CNT-CNT can cause strong adhesion. The adhesion can lead to radial deformation of CNTs, which is shown in both experiments and theoretical analysis. A scaling approach is used to predict the mechanical properties, vdW adhesion, and the elastic deformation of CNTs. It is found that the indentation of CNT is proportional to R 7/4 and h −3/2 in nanotube-substrate system and two same CNT system. Here, R and h are the radius and the wall thickness of CNT, respectively. The indentation ratio H 1/H 2 for CNT-CNT is proportional to (R 1/R 2)3/2 and (h 2/h 1)3/2.

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Authors and Affiliations

  1. Institute of Applied Mechanics and Biomedical Engineering, Shanxi Key Laboratory of Material Strength and Structural Impact, Taiyuan University of Technology, Taiyuan, 030024, China

    GenWei Wang

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  1. GenWei Wang
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Correspondence to GenWei Wang.

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Recommended by ZHAO YaPu (Associate Editor)

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Wang, G. Radial deformation and adhesion of carbon nanotube. Sci. China Phys. Mech. Astron. 57, 1569–1574 (2014). https://doi.org/10.1007/s11433-014-5502-5

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  • DOI: https://doi.org/10.1007/s11433-014-5502-5

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