| 碳纳米管/聚苯乙烯复合材料的制备及流变行为 |
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| 引用本文： | 方芳,常振军,张清华,陈大俊. 碳纳米管/聚苯乙烯复合材料的制备及流变行为[J]. 高分子材料科学与工程, 2008, 24(1): 10-12 |
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| 作者姓名： | 方芳 常振军 张清华 陈大俊 |
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| 作者单位： | 东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海,200051;东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海,200051;东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海,200051;东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海,200051 |
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| 基金项目： | 国家863计划资助(2005AA302H30)，上海市启明星跟踪计划(06QH14001) |
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| 摘 要： | 强酸氧化法对多壁碳纳米管(CNTs)进行了纯化,用FT-IR和TEM对CNTs的纯化效果和形态进行了表征。制备了CNTs/PS纳米复合材料,在ARES-RFS型旋转流变仪上对复合材料的动态流变行为进行了研究。结果表明,与纯聚合物相比,CNTs的加入使复合材料熔体呈现出由类液体粘弹行为向类固体粘弹行为的转变,表现为在低剪切速率作用下,纳米复合材料的黏度和储存模量对频率的依赖性变小。
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| 关 键 词： | 碳纳米管 聚苯乙烯 纳米复合材料 |
| 文章编号： | 1000-7555（2008）01-0010-03 |
| 收稿时间： | 2006-08-14 |
| 修稿时间： | 2006-12-21 |
The Preparation and Rheological Behavior of Carbon Nanotubes/Polystyrene Nanocomposites |
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| FANG Fang,CHANG Zhen-jun,ZHANG Qing-hua,CHEN Da-jun. The Preparation and Rheological Behavior of Carbon Nanotubes/Polystyrene Nanocomposites[J]. Polymer Materials Science & Engineering, 2008, 24(1): 10-12 |
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| Authors: | FANG Fang CHANG Zhen-jun ZHANG Qing-hua CHEN Da-jun |
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| Affiliation: | (State Key Laboratory of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 200051,China) |
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| Abstract: | Carbon nanotubes(CNTs) were modified using concentrated acid,and the CNTs/polystyrene nanocomposites were prepared.FTIR and TEM confirmed the dispersion and the morphology of CNTs in water or matrix.The dynamic rheological behaviors of the nanocomposites were investigated on an ARES-RFS rheometer.At low frequencies,comparing to pure matrix PS,the frequency dependences of complex viscosities and storage moduli reduce,indicating that the addition of CNTs in the matrix leads to the transition from liquid-like to solid-like viscoelastic behavior.This non-terminal low frequency behavior can be attributed to a nanotube network,which restrains the long-range motion of polymer chains. |
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| Keywords: | carbon nanotubes polystyrene nanocomposites |
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