Polymers with aligned carbon nanotubes: Active composite materials
Polymers with aligned carbon nanotubes: Active composite materials
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DOI：
10.1016/j.polymer.2008.05.005
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发表时间：
2008-08-26
期刊：
影响因子：
4.6
通讯作者：
Terentjev, E. M.
中科院分区：
文献类型：
--
作者：
Ahir, S. V.;Huang, Y. Y.;Terentjev, E. M.
综述了聚合物-碳纳米管复合材料的研究现状。文章首先介绍了纳米管在聚合物基体中的分散和稳定的关键点，特别注意超声空化和剪切混合。然后，我们专注于纳米复合材料致动器的新兴趋势，特别是，光刺激的机械响应。这种驱动的幅度，甚至方向关键取决于在矩阵中的管对齐的程度;在这种情况下，我们讨论的仿射模型预测的上限的取向顺序的纳米管，引起的施加应变。我们回顾了纳米复合材料中的光致动如何依赖于纳米管的浓度，排列和纠缠，并研究可能导致这种效应的可能机制。最后，我们讨论了纯碳纳米管网络的性质，在垫或纤维的形式。这些系统没有聚合物基质，但表现出明显的粘弹性，也有相同的光机械致动中看到的聚合物基复合材料。(C)2008爱思唯尔有限公司保留所有权利。
We review the current state of the polymer-carbon nanotube composites field. The article first covers key points in dispersion and stabilization of nanotubes in a polymer matrix, with particular attention paid to ultrasonic cavitation and shear mixing. We then focus on the emerging trends in nanocomposite actuators, in particular, photo-stimulated mechanical response. The magnitude and even the direction of this actuation critically depend on the degree of tube alignment in the matrix; in this context, we discuss the affine model predicting the upper bound of orientational order of nanotubes, induced by an imposed strain. We review how photo-actuation in nanocomposites depend on nanotube concentration, alignment and entanglement, and examine possible mechanisms that could lead to this effect. Finally, we discuss properties of pure carbon nanotube networks, in form of mats or fibers. These systems have no polymer matrix, yet demonstrate pronounced viscoelasticity and also the same photomechanical actuation as seen in polymer-based composites. (C) 2008 Elsevier Ltd. All rights reserved.