Electrical and Dielectric Properties of Hydroxylated Carbon Nanotube-Elastomer Composites

被引：106

作者：

Kohlmeyer, Ryan R. ^{[1
]}

Javadi, Alireza ^{[2
]}

Pradhan, Basudev ^{[1
]}

Pilla, Srikanth ^{[2
]}

Setyowati, Kristina ^{[1
]}

Chen, Jian ^{[1
]}

Gong, Shaoqin ^{[2
]}

机构：

[1] Univ Wisconsin, Dept Chem & Biochem, Milwaukee, WI 53211 USA

[2] Univ Wisconsin, Dept Mech Engn, Milwaukee, WI 53211 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2009年 / 113卷 / 41期

基金：

美国国家科学基金会;

关键词：

FUNCTIONALIZATION; CONSTANT;

D O I：

10.1021/jp901082c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-dielectric-constant carbon nanotube-polymer composites are developed using core-shell multiwalled carbon nanotubes (MWNTs) as a filler, in which the outer graphene layer is covalently functionalized to become nonconducting, whereas the inner graphene layers are unfunctionalized and remain electrically conducting. Hydroxylated MWNTs represent one of the simplest types of core-shell MWNTs. In this article, we report a comparative study of the electrical and dielectric properties of MWNT-polydimethylsiloxane composites based on pristine MWNTs and hydroxylated MWNTs, respectively. We demonstrate for the first time the feasibility of using core-shell MWNTs as a filler to increase the dielectric constant and reduce the dielectric loss of nanotube-polymer composites.

引用

页码：17626 / 17629

页数：4

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