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Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites
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  • Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites
ㆍ 저자명
Minjae Kim, Yeongseon Kim, Sung Hyeon Baeck and Sang Eun Shim
ㆍ 간행물명
Carbon LettersKCI
ㆍ 권/호정보
2015년|16권 1호(통권59호)|pp.34-40 (7 pages)
ㆍ 발행정보
한국탄소학회|한국
ㆍ 파일정보
정기간행물|ENG|
PDF텍스트(3.17MB)
ㆍ 주제분야
자연과학
서지반출

영문초록

In this study, in order to improve the thermal and electrical properties of epoxy/graphene nanoplatelets (GNPs), surface modifications of GNPs are conducted using silane coupling agents. Three silane coupling agents, i.e. 2-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane (ETMOS), 3-glycidoxypropyltriethoxysilane (GPTS), and 3-glycidoxypropyltrimethoxysilane (GPTMS), were used. Among theses, GPTMS exhibits the best modification performance for fabricating GNP-incorporated epoxy composites. The effect of the silanization is evaluated using transmission electron microscopy (TEM), scanning electron microscopy, thermogravimetric analysis, and energy dispersive X-ray spectroscopy. The electrical and thermal conductivities are characterized. The epoxy/silanized GNPs exhibits higher thermal and electrical properties than the epoxy/raw GNPs due to the improved dispersion state of the GNPs in the epoxy matrix. The TEM microphotographs and Turbiscan data demonstrate that the silane molecules grafted onto the GNP surface improve the GNP dispersion in the epoxy.

목차

1. Introduction
2. Experimental
3. Results and Discussion
4. Conclusion
Acknowledgments
References

키워드

grapheneepoxycompositesurface treatmentthermal conductivity

참고문헌 (27건)

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