Preparation and rheological characterization of poly(methyl methacrylate)/functionalized multi-walled carbon nanotubes composites

被引：37
|
作者：
Zhou, Zhen [1 ]
Wang, Shifeng [1 ]
Lu, Lan [1 ]
Zhang, Yong [1 ]
Zhang, Yinxi [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Technol, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2007年 / 67卷 / 09期
关键词：
multi-walled carbon nanotubes; high shear; rheological behavior;
D O I：
10.1016/j.compscitech.2006.10.016
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
A method to synthesize poly(methyl methacrylate) (PMMA)-modified multi-walled carbon nanotubes (MWNTs) via emulsion polymerization under high shear is presented. The modification of PMMA on MWNT surfaces was confirmed by Fourier-transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectra, transmission electron microscopy and thermogravimetric analysis. PMMA composites with MWNTs and PMMA-modified MWNTs were prepared through melt mixing, and their morphology and rheological behavior were investigated. PMMA/PMMA-modified MWNTs composites have the rheological percolation threshold of 1.5 wt% MWNTs, but PMMA/MWNTs composites have the rheological percolation threshold of 2.5 wt%. The difference in rheological percolation threshold is mainly attributed to the larger gap between nanotubes exited in the PMMA/PMMA-modified MWNTs composites. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1861 / 1869
页数：9
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