Effect of wet jet milling of carbon nanotube on electrical properties of polymer nanocomposites

被引：10

作者：

Imai, Yusuke ^{[1
]}

Shimamoto, Daisuke ^{[1
]}

Hotta, Yuji ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Moriyama Ku, Nagoya, Aichi 4638560, Japan

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2014年 / 148卷 / 03期

关键词：

Composite materials; Nanostructures; Electrical conductivity; Critical phenomena; AL2O3; SLURRIES; CONDUCTIVITY; COMPOSITES; TRANSPORT; GROWTH;

D O I：

10.1016/j.matchemphys.2014.09.044

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Wet-type jet milling (WJM) was used as a pre-treatment procedure for carbon nanotube (CNT) which was utilized as electrical conductive filler for polymer nanocomposites. Nanocomposites were prepared by dispersing WJM treated CNT (WJM-CNT) or as-received CNT (AR-CNT) in isotactic polypropylene matrix, and the effect of WJM pre-treatment on nanocomposite properties was investigated. Dispersion structure of CNT was observed by SEM and electrical property was studied by impedance spectroscopy. DC conductivities (sigma(DC)) showed different CNT concentration dependences, which were characterized by the percolation critical exponents. At 0.5 wt% of CNT, sigma(DC) increased two-fold by using WJM-CNT. Analysis of imaginary part of impedance spectra and complex dielectric permittivity suggested the WJM-CNT nanocomposites had much complicated local structure as compared to the AR-CNT counterparts. These electrical properties were discussed in relation to the dispersion structure of CNT. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1178 / 1183

页数：6

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