Piezoresistive Effect of Multi-Wall Carbon Nanotube Reinforced Epoxy Resin Coating

被引：0
|
作者：
Luo, Jianlin [1 ]
Li, Qiuyi [1 ]
Zhao, Tiejun [1 ]
Sun, Shengwei [1 ]
机构：
[1] Qingdao Technol Univ, Sch Civil Engn, Qingdao 266033, Peoples R China
来源：
CHINA POSTDOCTORAL FORUM ON MATERIALS SCIENCE AND ENGINEERING | 2011年 / 266卷
关键词：
Multi-walled carbon nanotube (MWNT); Fiber reinforced polymer (FRP); Electrical conductivity; Piezoresistivity property; CEMENT COMPOSITES; MICROSTRUCTURE;
D O I：
10.4028/www.scientific.net/AMR.266.196
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Some conductive MWNT with different loading was filled in epoxy resin through the dispersion technique of surfactant-decoration, high-intensive shear mixing, and bath sonication process. This kind of conductive functional resin coating was then simply brushed on a FRP sheet surface. The electrical conductivity of the cured nanocomposite coating was acquired by four-electrode method to explore the percolation threshold and piezoresistive effect. The change in its longitudinal strain of the coating and FRP sheet was simultaneously sampled under three-point bending. Results reveal that, at the onset percolation threshold (2.0%), the nanocomposite possesses superior piezoresistive effect with high strain-sensitivity (up to 27), which favors to health monitoring to FRP structure used as a novel self-sensing coating.
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页码：196 / 199
页数：4
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