Effect of modified graphene addition on the electrical properties of epoxy resin composite

被引：7
|
作者：
Wu, Lili [1 ]
Lv, Xiang [1 ]
Zhang, Chaocan [1 ]
机构：
[1] Wuhan Univ Technol, Dept Polymer, Wuhan 430070, Hubei, Peoples R China
来源：
ADVANCED MATERIALS, PTS 1-4 | 2011年 / 239-242卷
关键词：
grafting; modified; graphene; composite; coupling agent; electrical property; OXIDE;
D O I：
10.4028/www.scientific.net/AMR.239-242.55
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Graphene normally has weak interface compatibility to organics. In this paper, the surface of graphene is modified in order to improve its compatibility with polymer matrixes. Therefore, a Si lane Coupling Agent(SCA) gamma-Glycidoxypropyltrimethoxysilane is used to modify graphene. The results of the TEM, FTIR and sedimentation test show that SCA grafting can improve the graphene's dispersion stability in polar organic solvent. Then modified graphene is added to epoxy resin to obtain an epoxy resin composite. The conductivity of the epoxy resin compostie can reach 8.00E-009 s/m. When additional percentage of SCA is over 0.5%, the dielectric constant (epsilon) has a remarkable increase.
引用
收藏
页码：55 / 58
页数：4
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