Wet-spinning of multifunctional graphene fibers using graphene oxide liquid crystals

Jalili, Rouhollah, Aboutalebi, Seyed Hamed, Esrafilzadeh, Dorna, Shepherd, Roderick L., Chen, Jun, Aminorroaya-Yamini, Sima, Konstantinov, Konstantin, Minett, Andrew I., Razal, Joselito M. and Wallace, Gordon G. 2013, Wet-spinning of multifunctional graphene fibers using graphene oxide liquid crystals, in Proceedings of the 2013 Fiber Society Spring Technical Conference, The Fiber Society, Ft. Meade, Md..

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Title Wet-spinning of multifunctional graphene fibers using graphene oxide liquid crystals
Author(s) Jalili, Rouhollah
Aboutalebi, Seyed Hamed
Esrafilzadeh, Dorna
Shepherd, Roderick L.
Chen, Jun
Aminorroaya-Yamini, Sima
Konstantinov, Konstantin
Minett, Andrew I.
Razal, Joselito M.
Wallace, Gordon G.
Conference name The Fiber Society Spring Technical Conference (2013: Geelong, Vic.)
Conference location Geelong, Vic.
Conference dates 22-24 May 2013
Title of proceedings Proceedings of the 2013 Fiber Society Spring Technical Conference
Publication date 2013
Publisher The Fiber Society
Place of publication Ft. Meade, Md.
Summary The recent discovery of liquid crystalline (LC) behavior of graphene oxide (GO) dispersions in various organic, and aqueous media brings added control to the assembly of larger structures using the chemical process approach.[1-3] The LC state can be used to direct the ordered assembly of nanocomponents in macroscopic structures via simple methods like wet-spinning. [3] Here, we developed a scaleable fabrication route to produce graphene fibers via a facile continuoes wetspinning methode. We develop solid understanding in the required criteria to correlate processability with LC behavior, aspect ratio and the dispersion concentration to provide a viable platform for spinning of LC GO. We demonstrate a striking result that highlits the importance of GO sheet size and polydispersity in generating wetspinnable LC GO dispersions from very low spinning dope concentrations (as low as 0.075 wt. %). The new knowledge gained through rheological investigations provides a sound explanation as to why continuous spinning of binder-free GO fibers is enabled by the LC behavior at this very low concentration.
Language eng
Field of Research 091012 Textile Technology
091202 Composite and Hybrid Materials
100708 Nanomaterials
Socio Economic Objective 860406 Synthetic Fibres
HERDC Research category E2.1 Full written paper - non-refereed / Abstract reviewed
Copyright notice ©2013, The Fiber Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30076969

Document type: Conference Paper
Collections: Institute for Frontier Materials
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