Compositional effects of large graphene oxide sheets on the spinnability and properties of polyurethane composite fibers

Seyedin, Shayan, Razal, Joselito M, Innis, Peter Charles, Jalili, Rouhollah and Wallace, Gordon G 2016, Compositional effects of large graphene oxide sheets on the spinnability and properties of polyurethane composite fibers, Advanced materials interfaces, vol. 3, no. 5, pp. 1-10, doi: 10.1002/admi.201500672.

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Title Compositional effects of large graphene oxide sheets on the spinnability and properties of polyurethane composite fibers
Author(s) Seyedin, ShayanORCID iD for Seyedin, Shayan orcid.org/0000-0001-7322-0387
Razal, Joselito MORCID iD for Razal, Joselito M orcid.org/0000-0002-9758-3702
Innis, Peter Charles
Jalili, Rouhollah
Wallace, Gordon G
Journal name Advanced materials interfaces
Volume number 3
Issue number 5
Start page 1
End page 10
Total pages 10
Publisher Wiley
Place of publication London, Eng.
Publication date 2016-03
ISSN 2196-7350
Keyword(s) Elastomeric nanocomposites
Graphene oxide
Polyurethane
Strain sensing
Wet- spinning
Summary Recent advances in wearable electronics, technical textiles, and wearable strain sensing devices have resulted in extensive research on stretchable electrically conductive fibers. Addressing these areas require the development of efficient fiber processing methodologies that do not compromise the mechanical properties of the polymer (typically an elastomer) when nanomaterials are added as conductive fillers. It is highly desirable that the addition of conductive fillers provides not only electrical conductivity, but that these fillers also enhance the stiffness, strength, stretchability, and toughness of the polymer. Here, the compatibility of polyurethane (PU) and graphene oxide (GO) is utilized for the study of the properties of elastomeric conductive fibers prepared by wet-spinning. The GO-reinforced PU fibers demonstrate outstanding mechanical properties with a 200-fold and a threefold enhancement in Young's modulus and toughness, respectively. Postspinning thermal annealing of the fibers results in electrically conductive fibers with a low percolation threshold (≈0.37 wt% GO). An investigation into optimized fiber's electromechanical behavior reveals linear strain sensing abilities up to 70%. Results presented here provide practical insights on how to simultaneously maintain or improve electrical, mechanical, and electromechanical properties in conductive elastomer fibers.
Language eng
DOI 10.1002/admi.201500672
Field of Research 091205 Functional Materials
Socio Economic Objective 860406 Synthetic Fibres
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2016, Wiley
Persistent URL http://hdl.handle.net/10536/DRO/DU:30081115

Document type: Journal Article
Collections: Institute for Frontier Materials
GTP Research
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