The influence of functionalized MWCNT reinforcement on the thermomechanical properties and morphology of epoxy nanocomposites

被引：33

作者：

Chen, Wei ^{[1
]}

Lu, Hongbin ^{[2
]}

Nutt, Steven R. ^{[1
]}

机构：

[1] Univ So Calif, Dept Chem Engn & Mat Sci, Los Angeles, CA 90089 USA

[2] Fudan Univ, Dept Macromol Sci, Minist Educ, Key Lab Mol Engn Polymers, Shanghai 200433, Peoples R China

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2008年 / 68卷 / 12期

关键词：

Carbon nanotubes; Nanocomposites; Thermomechanical properties; Interphase;

D O I：

10.1016/j.compscitech.2008.05.011

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The nature of the interphase, often considered the third phase of nanocomposites, has been a central topic in nanocomposites research. In this study, an ionic bonding scheme was employed to graft epoxy-compatible amine terminated linear polypropylene oxide (A-PPO) molecules of different molecular weight to oxidized multi-walled carbon nanotubes (o-MWCNTs), and thereby modify the interphase of MWCNT-epoxy nanocomposites. The amine-cured epoxy systems reinforced with different functionalized MWCNTs demonstrated divergent thermomechanical properties. Fractography revealed distinct fracture behaviour for nanocomposites with long-chain A-PPO modified MWCNTs. The results demonstrate the feasibility of interphase control and performance engineering through the judicious choice of polymer grafts. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2535 / 2542

页数：8

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