The reinforcement role of carbon nanotubes in epoxy composites with different matrix stiffness
The reinforcement role of carbon nanotubes in epoxy composites with different matrix stiffness
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DOI：
10.1016/j.compscitech.2005.05.020
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发表时间：
2006-03-01
影响因子：
9.1
通讯作者：
Bai, JC
中科院分区：
文献类型：
--
作者：
Ci, LJ;Bai, JC
本文系统地评价了在固化过程可控的条件下，碳纳米管在不同基体刚度的纳米复合材料中的增强作用。力学试验和显微镜观察均表明，随着基体刚度的增加，这种增强作用逐渐减弱。而在韧性较软的复合材料中，碳纳米管的加入对材料的断裂应变没有明显的影响。刚性复合材料中碳纳米管与基体之间的界面相互作用较差，对复合材料的力学性能贡献不大。该研究为碳纳米管-环氧树脂纳米复合材料的设计和制备提供了一种新的思路。(c)2005年由Elsevier Ltd.出版
This paper systemically evaluates the different reinforcement roles of carbon nanotubes in those nanocomposites with different matrix stiffness while the curing process is controlled. Both mechanical test and microscope observation indicated that such reinforcement would gradually reduce while increasing the stiffness of matrix. However in the soft and ductile composites, carbon nanotubes show a significant reinforcement without fracture strain decreasing. The interface interaction is poor between carbon nanotubes and matrix in the stiff composite, and therefore, they have little contribution to the mechanical properties of composite. This research may help to propose a further positive solution for designing and fabricating carbon nanotube-epoxy nanocomposites. (c) 2005 Published by Elsevier Ltd.