Effect of multiwalled carbon nanotube (M-CNT) loading on M-CNT distribution behavior and the related electromechanical properties of the M-CNT dispersed ionomeric nanocomposites
Effect of multiwalled carbon nanotube (M-CNT) loading on M-CNT distribution behavior and the related electromechanical properties of the M-CNT dispersed ionomeric nanocomposites
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DOI：
10.1016/j.surfcoat.2005.08.024
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发表时间：
2005-11-21
影响因子：
5.4
通讯作者：
Lee, SJ
中科院分区：
文献类型：
--
作者：
Lee, DY;Lee, MH;Lee, SJ
采用溶液浇铸法制备了多壁碳纳米管（M-CNT）/Nafion纳米复合材料，并通过X射线衍射（XRD）、热重/差示扫描量热法（TG/DSC）、扫描电镜/透射电镜（SEM/TEM）等手段对复合材料进行了表征对M-CNT分布行为及复合材料相关机电性能的影响。Nation聚合物诱导的M-CNT束是均匀的。I wt.%分布M-CNT/Nafion纳米复合材料，表现出最高的弹性模量和改善的机电性能。然而，进一步的M-CNT加载引起M-CNT束的不均匀分布和对Nafion基质内的连接性的负面影响，从而引起差的致动性能。提出了一个合适的等效电路模型来评估M-CNT/聚合物纳米复合材料的电容和电阻的影响。总之，它被发现的纳米复合材料的致动性能主要是由聚合物基体内的M-CNT分布行为。(c)2005 Elsevier B. V.保留所有权利。
The multiwalled carbon nanotube (M-CNT)/Nafion nanocomposites were prepared by a method of solution casting and then characterized by using X-ray diffraction (XRD), thermogravinietry/differential scanning calorimetry (TG/DSC), scanning and transmission electron microscopy (SEM/TEM) to evaluate the effect of M-CNT loading in the range of 0 to 7 wt.% on M-CNT distribution behavior and the related electromechanical properties of the composites. The M-CNT bundles induced by the Nation polymer was uniformly. distributed for the I wt.% M-CNT/Nafion nanocomposites, exhibiting the highest elastic modulus and improved electromechanical properties. However, further M-CNT loading caused a heterogeneous distribution of M-CNT bundles and a negative impact on the connectivity within the Nafion matrix, giving rise to poor actuation properties. An appropriate equivalent circuit model was proposed to evaluate the effect of capacitance and resistance of M-CNT/polymer nanocomposites. In conclusion, it is found that the actuation properties of the nanocomposites are primarily governed by the M-CNT distribution behavior within the polymer matrix. (c) 2005 Elsevier B.V. All rights reserved.