Load-transfer in functionalized carbon nanotubes/polymer composites

被引：79
作者：
Wang, Shiren [1 ]
Liang, Richard [2 ]
Wang, Ben [2 ]
Zhang, Chuck [2 ]
机构：
[1] Texas Tech Univ, Dept Ind Engn, Lubbock, TX 79409 USA
[2] Florida State Univ, FAMU FSU Coll Engn, Dept Ind & Mfg Engn, HPMI, Tallahassee, FL 32310 USA
来源：
CHEMICAL PHYSICS LETTERS | 2008年 / 457卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2008.04.037
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：
Carbon nanotubes ( CNTs)/polymer composites were characterized through Raman spectroscopy when heated. Functionalized-CNT composites showed a noticeable shift of Raman G band while pristine CNT composites showed a slight shift. Raman G band shift of as-produced epoxide-grafted CNT composites was more significant than that of amino-grafted CNT composites. Further mechanical tests validated properties of epoxide-grafted CNT composites were superior to those of amino-grafted CNT composites even though both nanocomposites revealed significant improvements in comparison with pristine CNT composites. The possible reasons may come from different functionalization density and functionalization-dependent interfacial structures. These experimental results indicate that Raman G band shift is an indication of load-transfer of nanocomposites and it can be used to quantify the effect of CNT functionalization on the composite load-transfer. (c) 2008 Elsevier B. V. All rights reserved.
引用
收藏
页码：371 / 375
页数：5
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