Branching of interfacial cracks of carbon nanotube layers at the air-water interface

  • Yongjian ZhangEmail author
  • Danna Yuan
  • Haoran Ma
  • Tao Wang
  • Duyang ZangEmail author
Regular Article
Part of the following topical collections:
  1. Branching Dynamics at the Mesoscopic Scale


We study the surfactant-induced fracture of carbon nanotube layers at the air-water interface. The interfacial cracks exhibit branched morphologies. The propagation velocity V of the cracks follows a power law as \( V\sim t^{-0.5}\) , which is independent of the surface coverage of the layers as well as the surfactant concentration. However, the crack morphology changes from lightning-like to flower-like with the increasing of SDS concentration. A higher surfactant concentration does not accelerate the crack propagation velocity, whereas it significantly enhances the crack areas due to the stronger interfacial compression effect. Our results may shed light on the understanding of branching dynamics of interfacial cracks for 2-dimensional viscoelastic systems.

Graphical abstract


Topical issue: Branching Dynamics at the Mesoscopic Scale 


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Copyright information

© EDP Sciences, Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Shaanxi Key Laboratory of Surface Engineering and RemanufacturingXi’an UniversityXi’anChina
  2. 2.Functional Soft Matter & Materials Group, Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of ScienceNorthwestern Polytechnical UniversityXi’anChina

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