ISSN 2288-2103 (Print)
ISSN 2288-2111 (Online)
 
 
 
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Abstract

Composites Research. 2019 32(3): 134-140
ⓒ The Journal of the Korean Society for Composite Materials
    
 
Separation of Non-covalently Functionalized Graphene Nanoplatelets via Salting-out Process
Joonhui Kim, Sung Chan Yoo, Jaemin Cha, Hojin Ryu, Soon Hyung Hong
Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology, epartment of Material Science and Engineering, Korea Advanced Institute of Science and Technology, Corresponding author, Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology
 
 
염석법을 이용한 비공유 기능기화된 그래핀 나노플레이트렛의 분리 공정 연구
김준희, 유승찬, 차재민, 류호진, 홍순형
Department of Material Science and Engineering, Korea Advanced Institute of Science and Technology, epartment of Material Science and Engineering, Korea Advanced Institute of Science and Technology, Corresponding author, Department of Nuclear and Quantum Engineering, Korea Advanced Institute of Science and Technology
 

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.
 
Key words : Graphene Nanoplatelet, Non-covalent Functionalization, Salting-out Process
중심단어 : 그래핀 나노플레이트렛(), 비공유기능기화(), 염석법
 
 
  
 
 
 

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