Significantly Enhanced Actuation Performance of IPMC by Surfactant-Assisted Processable MWCNT/Nafion Composite  

作　　者：Qingsong He Min Yu Dingshan Yu Yan Ding Zhendong Dai 

机构地区：[1]Institute of Bio-Inspired Structure and Surface Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, P. R. China [2]College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 21 O016, P. R. China [3]Department of Chemical Engineering, Case Western Reserve University, Cleveland 44106, USA

出　　处：《Journal of Bionic Engineering》2013年第3期359-367,共9页仿生工程学报（英文版）

基　　金：This paper is financially supported by the National Natural Science Foundation of China （51175251 and 61161120323）, and the Natural Science Foundation of Jiangsu Province （BK2011734）, the Funding for Out- standing Doctoral Dissertation in NUAA （BCXJ 11-06）, the Funding of Jiangsu Innovation Program for Graduate Education （CXLXll_0178）, and the Fundamental Re- search Funds for the Central Universities. The authors thank Mr. Yajun Xue for his help in SEM measurements, and Mr. Xinyuan Zhu for his help in TEM measurements.

摘　　要：The performance of Ionic Polymer Metal Composite （IPMC） actuator was significantly enhanced by incorporating surfactant-assisted processable Multi-Walled Carbon Nanotubes （MWCNTs） into a Nation solution. Cationic surfactant Cetyl Trimethyl Ammonium Bromide （CTAB） was employed to disperse MWCNTs in the Nation matriX, forming a homogeneous and stable dispersion ofnanotubes. The processing did not involve any strong acid treatment and thus effectively preserved the excellent electronic properties associated with MWCNT. The as-obtained MWCNT/Nafion-IPMC actuator was tested in terms of conductivity, bulk and surface morphology, blocking force and electric current. It was shown that the blocking force and the current of the new IPMC are 2.4 times and 1.67 times higher compared with a pure Nation-based IPMC. Moreover, the MWCNT/IPMC performance is much better than previously reported Nafion-IPMC doped by acid-treated MWCNT. Such significantly improved performance should be attributed to the improvement of electrical property associated with the addition of MWCNTs without acid treatment.The performance of Ionic Polymer Metal Composite （IPMC） actuator was significantly enhanced by incorporating surfactant-assisted processable Multi-Walled Carbon Nanotubes （MWCNTs） into a Nation solution. Cationic surfactant Cetyl Trimethyl Ammonium Bromide （CTAB） was employed to disperse MWCNTs in the Nation matriX, forming a homogeneous and stable dispersion ofnanotubes. The processing did not involve any strong acid treatment and thus effectively preserved the excellent electronic properties associated with MWCNT. The as-obtained MWCNT/Nafion-IPMC actuator was tested in terms of conductivity, bulk and surface morphology, blocking force and electric current. It was shown that the blocking force and the current of the new IPMC are 2.4 times and 1.67 times higher compared with a pure Nation-based IPMC. Moreover, the MWCNT/IPMC performance is much better than previously reported Nafion-IPMC doped by acid-treated MWCNT. Such significantly improved performance should be attributed to the improvement of electrical property associated with the addition of MWCNTs without acid treatment.

关 键 词：ionic polymer metal composite HOMOGENEOUS actuator conductivity cetyl trimethyl ammonium bromide multi-walled carbon nanotube 

分 类 号：O647.2[理学—物理化学] TQ423.12[理学—化学]