Facile preparation of epoxy nanocomposites with highly dispersed graphite nanosheets and their dielectric properties

被引：0
|
作者：
Kiwon Oh
Taeho Kim
Sang-Soo Lee
Soonho Lim
Daeheum Kim
Heesuk Kim
机构：
[1] Korea Institute of Science and Technology (KIST),Photo
[2] Kwangwoon University,Electronic Hybrids Research Center
来源：
Macromolecular Research | 2012年 / 20卷
关键词：
graphite nanosheets; nanocomposites; dielectric properties; dispersion;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Very thin graphite nanosheets (GNSs) with 11 nm thickness and 250 nm in lateral size were simply prepared from bulk graphite via an ultrasonication and centrifugation in N,N-dimethylformamide (DMF) without any chemical treatments such as using surfactants. GNSs/epoxy nanocomposites with 3 wt% GNSs showed a high dielectric constant (710) and relatively low dielectric loss tangent (less than 0.5) at low frequency (100 Hz). This great improvement in the dielectric properties could be attributed to very thin thickness, excellent dispersibility and sheet-like shape of GNSs in comparison with graphite or thick GNSs. [graphic not available: see fulltext]
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页码：1197 / 1200
页数：3
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