Strong graphene oxide nanocomposites from aqueous hybrid liquid crystals

Maruti Hegde, Lin Yang, Francesco Vita, Ryan J. Fox, Renee Watering, Ben Norder, Ugo Lafont, Oriano Francescangeli, Louis A. Madsen, Stephen J. Picken, Edward T. Samulski and Theo J. Dingemans ()
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Maruti Hegde: University of North Carolina at Chapel Hill
Lin Yang: National Synchrotron Light Source II, Brookhaven National Laboratory
Francesco Vita: Università Politecnica della Marche
Ryan J. Fox: University of North Carolina at Chapel Hill
Renee Watering: Delft University of Technology, Kluyverweg 1
Ben Norder: Delft University of Technology
Ugo Lafont: European Space Technology and Research Centre, European Space Agency
Oriano Francescangeli: Università Politecnica della Marche
Louis A. Madsen: Virginia Tech
Stephen J. Picken: Delft University of Technology
Edward T. Samulski: University of North Carolina at Chapel Hill
Theo J. Dingemans: University of North Carolina at Chapel Hill

Nature Communications, 2020, vol. 11, issue 1, 1-7

Abstract: Abstract Combining polymers with small amounts of stiff carbon-based nanofillers such as graphene or graphene oxide is expected to yield low-density nanocomposites with exceptional mechanical properties. However, such nanocomposites have remained elusive because of incompatibilities between fillers and polymers that are further compounded by processing difficulties. Here we report a water-based process to obtain highly reinforced nanocomposite films by simple mixing of two liquid crystalline solutions: a colloidal nematic phase comprised of graphene oxide platelets and a nematic phase formed by a rod-like high-performance aramid. Upon drying the resulting hybrid biaxial nematic phase, we obtain robust, structural nanocomposites reinforced with graphene oxide.

Date: 2020
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DOI: 10.1038/s41467-020-14618-0

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