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Analysis of carbon nanotube pull-out from a polymer matrix

Authors
Journal
Surface Science
0039-6028
Publisher
Elsevier
Publication Date
Volume
525
Identifiers
DOI: 10.1016/s0039-6028(02)02532-3
Keywords
  • Molecular Dynamics
  • Carbon
  • Friction
  • Interface States

Abstract

Abstract Molecular dynamics simulations of carbon nanotube (NT) pull-out from a polymer matrix are carried out. As the NT pull-out develops, variations in the displacement and velocities of the NT are monitored. The existence of a carbon-ring-based period in NT sliding during pull-out is identified. Linear trends in the NT velocity–force relation are observed and used to estimate an effective viscosity coefficient for interfacial sliding at the NT/polymer interface. As a result, the entire process of NT pull-out is characterized by an interfacial friction model that is based on a critical pull-out force, and an analog of Newton’s friction law used to describe the NT/polymer interfacial sliding.

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