Toward the microstructure-properties relationship in MWCNT/epoxy composites: Percolation behavior and dielectric spectroscopy

被引：37
作者：
Monti, Marco [1 ,2 ]
Armentano, Ilaria [1 ]
Faiella, Gabriella [3 ]
Antonucci, Vincenza [3 ]
Maria Kenny, Jose [1 ,4 ]
Torre, Luigi [1 ]
Giordano, Michele [3 ]
机构：
[1] Univ Perugia, Dept Civil & Environm Engn, UdR INSTM, I-05100 Terni, Italy
[2] Proplast Consortium, I-15057 Rivalta Scrivia, AL, Italy
[3] CNR, Inst Composite & Biomed Mat IMCB, I-80055 Portici, NA, Italy
[4] CSIC, Inst Polymer Sci & Technol, E-28006 Madrid, Spain
来源：
COMPOSITES SCIENCE AND TECHNOLOGY | 2014年 / 96卷
关键词：
Carbon nanotubes; Nanocomposites; Electrical properties; CARBON NANOTUBES; ELECTRICAL-PROPERTIES; NANOCOMPOSITES; DISPERSION;
D O I：
10.1016/j.compscitech.2014.03.008
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
In this paper, the electrical and dielectric properties of epoxy composites containing multi walled carbon nanotubes (MWCNTs) are investigated by means of direct and alternate current measurements and correlated with the internal composite microstructure. A systematically study on the role of different nanotube network structures produced by varying the processing parameters: sonication time and curing temperature is performed. The percolation behavior of the produced composites is studied and the correlation between carbon nanotube networks induced by processing and the final properties is analyzed. An equivalent electrical circuit is proposed as a model to describe the dielectric property behavior due to different multi-scale composite microstructure and the interaction between tubes-tubes and tubes-matrix. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码：38 / 46
页数：9
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