Effects of block copolymer dispersant and nanotube length on reinforcement of carbon/epoxy composites

被引：60

作者：

Cho, J. ^{[1
]}

Daniel, I. M. ^{[1
]}

Dikin, D. A. ^{[1
]}

机构：

[1] Northwestern Univ, Robert R McCormick Sch Engn & Appl Sci, Ctr Intelligent Proc Composites, Evanston, IL 60208 USA

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2008年 / 39卷 / 12期

关键词：

Thermomechanical properties; Multiwall carbon nanotubes; Block copolymers; Composites;

D O I：

10.1016/j.compositesa.2008.09.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The epoxy matrix of a carbon fiber/epoxy composite was modified with multiwall carbon nanotubes (MWCNTs) to improve the matrix dominated thermomechanical properties of the composite. Effects of improved dispersion and nanotube length on reinforcement of the composite were investigated experimentally. The dispersion of the CNTs was enhanced with a block copolymer. Two different CNT lengths, 1 and 10 mu m on average, were considered. Irrespective of the length, a pronounced improvement of the composite properties was achieved with 0.5 wt% of MWCNTs with the use of block copolymer. Without the block copolymer, it was found that a higher enhancement of composite properties was achieved with the longer nanotubes. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1844 / 1850

页数：7

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