염석법을 이용한 비공유 기능기화된 그래핀 나노플레이트렛의 분리 공정 연구 Separation of Non-covalently Functionalized Graphene Nanoplatelets via Salting-out Process

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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.
Publisher
KOREAN SOC COMPOSITE MATERIALS
Issue Date
2019-06
Language
Korean
Article Type
Article
Citation

COMPOSITES RESEARCH, v.32, no.3, pp.134 - 140

ISSN
2288-2103
DOI
10.7234/composres.2019.32.3.134
URI
http://hdl.handle.net/10203/263866
Appears in Collection
NE-Journal Papers(저널논문)MS-Journal Papers(저널논문)
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