Dielectric properties of polystyrene/onion-like carbon composites in frequency range of 0.5-500 kHz

被引：26
作者：
Gavrilov, N. N. [1 ]
Okotrub, A. V. [1 ,2 ]
Bulusheva, L. G. [1 ]
Sedelnikova, O. V. [1 ]
Yushina, I. V. [1 ]
Kuznetsov, V. L. [3 ]
机构：
[1] RAS, Nikolaev Inst Inorgan Chem, SB, Novosibirsk 630090, Russia
[2] Novosibirsk State Tech Univ, Novosibirsk 630092, Russia
[3] RAS, Boreskov Inst Catalysis, SB, Novosibirsk 630090, Russia
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2010年 / 70卷 / 05期
关键词：
Onion-like carbon; Polymer-matrix composites (PMCs); Dielectric properties; ONION-LIKE-CARBON; NANODIAMOND; DIAMOND;
D O I：
10.1016/j.compscitech.2009.12.026
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Composites of polystyrene and onion-like carbon (OLC), produced from detonation nanodiamonds (NDs), have been fabricated by forge-rolling method Optical microscopy and optical absorption spectroscopy were used for control of dispersion of OLC in polymer matrix after repeating rolling cycles The impedance measurements of composites with different filler loading indicated the percolation threshold at similar to 20-25 wt.% OLC concentration The permittivity of the polystyrene/OLC composites varies from 2 to 10 with changing the OLC loading from 5 to 35 wt% Fitting the experimental data with model based on the Maxwell-Garnett approximation lead to conclusion that the shear deformation applied under the composite preparing disintegrates OLC agglomerates to the size similar to 40-50 nm equal to the medium size of OLC in dimethylformamide slurry (C) 2010 Elsevier Ltd All rights reserved
引用
收藏
页码：719 / 724
页数：6
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