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Title: Temperature and electrical memory of polymer fibers

Abstract

We report in this work studies of the shape memory behavior of polymer fibers loaded with carbon nanotubes or graphene flakes. These materials exhibit enhanced shape memory properties with the generation of a giant stress upon shape recovery. In addition, they exhibit a surprising temperature memory with a peak of generated stress at a temperature nearly equal to the temperature of programming. This temperature memory is ascribed to the presence of dynamical heterogeneities and to the intrinsic broadness of the glass transition. We present recent experiments related to observables other than mechanical properties. In particular nanocomposite fibers exhibit variations of electrical conductivity with an accurate memory. Indeed, the rate of conductivity variations during temperature changes reaches a well defined maximum at a temperature equal to the temperature of programming. Such materials are promising for future actuators that couple dimensional changes with sensing electronic functionalities.

Authors:
; ; ; ;  [1]
  1. Centre de Recherche Paul Pascal - CNRS, University of Bordeaux, Avenue Schweitzer, 33600 Pessac (France)
Publication Date:
OSTI Identifier:
22280336
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1599; Journal Issue: 1; Conference: 7. international conference on times of polymers (TOP) and composites, Ischia (Italy), 22-26 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; ACTUATORS; CARBON NANOTUBES; COMPOSITE MATERIALS; ELECTRIC CONDUCTIVITY; FIBERS; GLASS; GRAPHENE; POLYMERS; SHAPE MEMORY EFFECT; STRESSES; VARIATIONS

Citation Formats

Yuan, Jinkai, Zakri, Cécile, Grillard, Fabienne, Neri, Wilfrid, and Poulin, Philippe. Temperature and electrical memory of polymer fibers. United States: N. p., 2014. Web. doi:10.1063/1.4876812.
Yuan, Jinkai, Zakri, Cécile, Grillard, Fabienne, Neri, Wilfrid, & Poulin, Philippe. Temperature and electrical memory of polymer fibers. United States. https://doi.org/10.1063/1.4876812
Yuan, Jinkai, Zakri, Cécile, Grillard, Fabienne, Neri, Wilfrid, and Poulin, Philippe. 2014. "Temperature and electrical memory of polymer fibers". United States. https://doi.org/10.1063/1.4876812.
@article{osti_22280336,
title = {Temperature and electrical memory of polymer fibers},
author = {Yuan, Jinkai and Zakri, Cécile and Grillard, Fabienne and Neri, Wilfrid and Poulin, Philippe},
abstractNote = {We report in this work studies of the shape memory behavior of polymer fibers loaded with carbon nanotubes or graphene flakes. These materials exhibit enhanced shape memory properties with the generation of a giant stress upon shape recovery. In addition, they exhibit a surprising temperature memory with a peak of generated stress at a temperature nearly equal to the temperature of programming. This temperature memory is ascribed to the presence of dynamical heterogeneities and to the intrinsic broadness of the glass transition. We present recent experiments related to observables other than mechanical properties. In particular nanocomposite fibers exhibit variations of electrical conductivity with an accurate memory. Indeed, the rate of conductivity variations during temperature changes reaches a well defined maximum at a temperature equal to the temperature of programming. Such materials are promising for future actuators that couple dimensional changes with sensing electronic functionalities.},
doi = {10.1063/1.4876812},
url = {https://www.osti.gov/biblio/22280336}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1599,
place = {United States},
year = {Thu May 15 00:00:00 EDT 2014},
month = {Thu May 15 00:00:00 EDT 2014}
}