Functionalization of graphene nanoplatelets using sugar azide for graphene/epoxy nanocomposites
(주)코리아스칼라
- 최초 등록일
- 2016.04.02
- 최종 저작일
- 2015.04
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 16권 / 2호
ㆍ저자명 : Saswata Bose, Lawrence T. Drzal
목차
Abstract
1. Introduction
2. Experimental Details
2.1. Materials
2.2. Functionalization of GnP using SugarAzide
2.3. Fabrication of epoxy/GnP composite
3. Measurements
3. Proposed Mechanism
4. Results and Discussion
4.1. Characterization of functionalized graphene(SAMG)
4.1.1. X-ray photo electron spectroscopy
4.1.2. Atomic force microscopy
4.1.3. Thermogravimetric analysis
4.1.4. Raman spectroscopy
4.1.5. Scanning electron microscopy
4.2. Thermo-mechanical performance of epoxy/SAMG composite
4.2.1. Thermogravimetric analysis
4.2.2. Dynamic mechanical analyses
4.2.3. Scanning electron microscopy
4.2.4. Flexural properties
5. Conclusions
Acknowledgements
References
영어 초록
We report a covalent functionalization of graphene nanoparticles (GnPs) employing 2,3,4-Tri-O-acetyl-β-D-xylopyranosyl azide followed by fabrication of an epoxy/functionalized graphene nanocomposite and an evaluation of its thermo-mechanical performance. Successful functionalization of GnP was confirmed via thermal and spectroscopic study. Raman spectroscopy indicated that the functionalization was on the edge of the graphene sheets; the basal plane was not perturbed as a result of the functionalization. The epoxy/functionalized GnP composite system exhibited an increase in flexural modulus (~18%) and glass transition temperature (~10°C) compared to an un-functionalized GnP based epoxy composite.
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