Maximum nanotube volume fraction and its effect on overall elastic properties of nanotube-reinforced composites

被引：23

作者：

Jiang, Bing ^{[1
]}

Liu, Charlie ^{[1
]}

Zhang, Chuck ^{[1
]}

Liang, Richard ^{[1
]}

Wang, Ben ^{[1
]}

机构：

[1] Florida State Univ, Florida A&M Univ, Dept Ind & Mfg Engn, High Performance Mat Inst,Coll Engn, Tallahassee, FL 32310 USA

来源：

COMPOSITES PART B-ENGINEERING | 2009年 / 40卷 / 03期

关键词：

Nano-structures; Mechanical properties; Micromechanics; WALLED CARBON NANOTUBES; LOAD-TRANSFER; MODULUS;

D O I：

10.1016/j.compositesb.2008.11.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The potential capability of improving overall elastic modulus of nanotube-reinforced composites is a fundamental concern in nanotechnology applications. Based on geometric analysis and micromechanics estimation, this study reports that the ratio of surface-to-surface distance of adjacent carbon nanotubes (CNTs) to the CNT diameter plays a key role in improving the overall elastic modulus of the CNT-reinforced composites when the tubes are perfectly aligned, completely separated from other tubes, and ideally bonded with the composite matrix. With the decrease of this ratio, that is, decrease of the surface-to-surface distance of adjacent CNTs and/or increase CNT diameter, the improvement capability increases. However, theoretical and experimental results show that an increase of the CNT diameters degrades the elastic moduli of CNTs. This paper discusses the criterion of choosing CNTs with larger diameter and addresses the factors influencing the surface-to-surface distance of adjacent CNTs. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：212 / 217

页数：6

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