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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Aqueous reduced graphene/thermoplastic polyurethane nanocomposites
Polymer, Volume 54, No. 17, Year 2013
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Description
Aqueous reduction of graphene oxide is a low energy and hazardous-chemical free method to produce graphene. In this article, we report the first polymer nanocomposites with aqueous reduced graphene (ARG). Dispersion of ARG in polymer can be challenging because of the aggregation and stacking of single sheets during the removal of water. A novel co-solvent process to blend ARG into thermoplastic polyurethane (TPU) avoids drying ARG by adding an organic solvent before water is completely removed from the aqueous reduction mixture. The dispersion of ARG in TPU was significantly improved using the co-solvent process compared to conventional solvent blending as demonstrated by the mechanical and electrical properties of ARG/TPU composites. Moreover, properties of the co-solvent blended ARG composite are similar to those of the composites of thermally reduced graphene (TRG), which are the best reported to date. We believe that using solvent exchange to avoid aggregation during drying is a general strategy applicable to other nanocomposite preparations. © 2013 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Liao, Ken Hsuan
United States, Minneapolis
University of Minnesota Twin Cities
United States, Wilmington
Dupont
Park, Yong Tae
United States, Minneapolis
University of Minnesota Twin Cities
Abdala, Ahmed A.
United Arab Emirates, Abu Dhabi
Khalifa University of Science and Technology
Egypt, Suez
Suez University
Macosko, Christopher
United States, Minneapolis
University of Minnesota Twin Cities
Statistics
Citations: 66
Authors: 4
Affiliations: 4
Identifiers
Doi:
10.1016/j.polymer.2013.06.032
ISSN:
00323861
Research Areas
Environmental