Nanocable-structured polymer/carbon nanotube composite with low dielectric loss and high impedance

被引：25

作者：

Ren, Junwen ^{[1
]}

Yu, Demei ^{[1
,2
]}

Feng, Lihua ^{[1
]}

Wang, Guolong ^{[1
]}

Lv, Guowei ^{[1
,2
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

[2] Xi An Jiao Tong Univ, Dept Chem, Sch Sci, Xian 710049, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2017年 / 98卷

关键词：

Nanocomposites; Carbon nanotubes and nanofibers; Interface/interphase; WALLED CARBON NANOTUBES; FACILE PREPARATION; HIGH-PERMITTIVITY; AC CONDUCTIVITY; BARIUM-TITANATE; EPOXY MATRIX; CONSTANT; SURFACE; FUNCTIONALIZATION; SILSESQUIOXANE;

D O I：

10.1016/j.compositesa.2017.03.014

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A hierarchical nanocable structure was fulfilled by grafting poly(glycidyl methacrylate) from single walled carbon nanotubes (PGMA-SWCNTs) via activators regenerated by electron transfer-atom transfer radical polymerization (ARGET-ATRP). It was found that SWCNTs were parallelly separated by the grafted PGMA brushes in the nanocables. To investigate the advantages of nanocable architecture, a composite film was prepared through filtrating the uniform solution of PGMA-SWCNTs nanocables. The dielectric properties dependent on frequency and temperature revealed that high dielectric constants, high impedance and low dielectric loss were simultaneously achieved for the PGMA-SWCNTs film. Meanwhile, thermal conductive analysis showed that the PGMA-SWCNTs film possessed a high thermal conductivity. The unique nanocable structure and the excellent interfacial interaction between PGMA and SWCNTs were believed to be the critical causes for the high performance of the nanocomposite. (C) 2017 Published by Elsevier Ltd.

引用

页码：66 / 75

页数：10

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