期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 156, 期 1, 页码 187-193出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.04.012
关键词
Carbon nanotubes; Composites; Actuation; Nafion; IPMC
资金
- Natural Science Foundation of China (NSFC) [51063009]
- Beijing Natural Science Foundation of China [KZ200910017001]
- King Abdullah University of Science and Technology (KAUST) [KUS-C1-018-02]
The fabrication and electromechanical performance of functionalized carbon nanotube (FCNT)-Nafion composite actuators were studied. The CNTs were modified successfully with polyethylene glycol (PEG), as verified by thermogravimetric analysis (TGA) and Fourier transform infrared (FT-IR) spectroscopy. Scanning electron microscopy (SEM) images show that the FCNTs are homogeneously dispersed in the Nafion matrix. The properties of FCNT-Nafion composites in terms of water uptake, ion exchange capacity, proton conductivity, dynamic mechanical properties, and actuation behavior were evaluated. The results show that the sample with 0.5 wt% FCNT exhibits the best overall behavior. Its storage modulus is 2.4 times higher than that of Nafion. In addition, the maximum generated strain and the blocking force for the same sample are 2 and 2.4 times higher compared to the neat Nation actuator, respectively. (C) 2011 Elsevier B.V. All rights reserved.
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