Strain sensing behaviour of elastomeric composite films containing carbon nanotubes under cyclic loading

R. Zhang, H. Deng, R. Valenca, J.H. Jin, Q. Fu, E. Bilotti, A.A.J.M. Peijs

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Abstract

The resistivity response under cyclic loading of thermoplastic polyurethane (TPU) multi-walled carbon nanotube (MWNT) elastomeric nanocomposite films fabricated by a solution process with good nanotube dispersion and low percolation threshold (p(c) similar to 0.35 wt.%) is reported. At a strain amplitude of 5%, the strain-dependent resistance shows good recoverability and reproducibility after stabilisation by cyclic loading. When larger strains are applied, only a small part of the resistance is recoverable, and a double peak appears when a single loading cycle is applied. This behaviour is attributed to the competition of network deformation and network reformation during cyclic loading of the polymer composites. (c) 2012 Elsevier Ltd. All rights reserved.
Original languageEnglish
Pages (from-to)1-5
JournalComposites Science and Technology
Volume74
DOIs
Publication statusPublished - 2013

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