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http://dx.doi.org/10.7234/composres.2019.32.3.134

Separation of Non-covalently Functionalized Graphene Nanoplatelets via Salting-out Process  

Kim, Joonhui (Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology)
Yoo, Sung Chan (Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology)
Cha, Jaemin (Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology)
Ryu, Hojin (Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology)
Hong, Soon Hyung (Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Composites Research / v.32, no.3, 2019 , pp. 134-140 More about this Journal
Abstract
Graphene nanoplatelets (GNP), one of the graphene derivatives is famous as the most proper candidate for industrial applications. However, current performance of GNPs as reinforcing filler in composites is limited by their agglomeration and physicochemical heterogeneity. Herein, an approach to produce non-covalently functionalized GNPs (F-GNPs) is reported which possesses potential to be extended as the industrial level of mass production. The one-step functionalization process uses melamine, a low-cost chemical, to prevent agglomeration and dispersion in polar solvents. Furthermore, a purification strategy called salting-out process based on differences in the dispersibility of the individual F-GNP flakes is reported to separate F-GNPs. The functionalization and separation process developed in this paper provides a strategy to use GNPs at the industrial level in composite applications.
Keywords
Graphene Nanoplatelet; Non-covalent Functionalization; Salting-out Process;
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Times Cited By KSCI : 1  (Citation Analysis)
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