Ultra-high dispersion of graphene in polymer composite via solvent free fabrication and functionalization

Scientific Reports
Ye Ji NohJae Ryoun Youn

Abstract

The drying process of graphene-polymer composites fabricated by solution-processing for excellent dispersion is time consuming and suffers from a restacking problem. Here, we have developed an innovative method to fabricate polymer composites with well dispersed graphene particles in the matrix resin by using solvent free powder mixing and in-situ polymerization of a low viscosity oligomer resin. We also prepared composites filled with up to 20 wt% of graphene particles by the solvent free process while maintaining a high degree of dispersion. The electrical conductivity of the composite, one of the most significant properties affected by the dispersion, was consistent with the theoretically obtained effective electrical conductivity based on the mean field micromechanical analysis with the Mori-Tanaka model assuming ideal dispersion. It can be confirmed by looking at the statistical results of the filler-to-filler distance obtained from the digital processing of the fracture surface images that the various oxygenated functional groups of graphene oxide can help improve the dispersion of the filler and that the introduction of large phenyl groups to the graphene basal plane has a positive effect on the dispersion.

References

Oct 23, 2004·Science·K S NovoselovA A Firsov
Apr 15, 2006·Science·Claire BergerWalt A de Heer
Jan 27, 2007·Science·J Scott BunchPaul L McEuen
Mar 3, 2007·Nature Materials·A K Geim, K S Novoselov
Sep 6, 2008·Nature Nanotechnology·Yenny HernandezJonathan N Coleman
Dec 23, 2009·Nano Letters·Shuai WangKian Ping Loh
May 19, 2010·Chemical Communications : Chem Comm·Viet Hung PhamJin Suk Chung
Nov 10, 2010·Nano Letters·Chenguang LiuBor Z Jang
Nov 12, 2010·Nature·Zhengzong SunJames M Tour
Aug 2, 2011·ACS Nano·Gedeng RuanJames M Tour
Jun 19, 2013·Chemical Communications : Chem Comm·Viet Hung PhamJin Suk Chung
Aug 27, 2013·Scientific Reports·Yingyan MaoLi Liu
Mar 13, 2014·Small·Yong XuWenhui Duan

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Citations

Jun 30, 2016·Nature Communications·Hortense Le FerrandRaffaele Mezzenga
Aug 15, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Peng DuLiping Wang
Jul 25, 2021·Polymers·Suguna PerumalIn Woo Cheong
Apr 10, 2018·ACS Omega·Chen ShenLei Zhai

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
AFM

Software Mentioned

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