Electrorheological characteristics of polyaniline/titanate composite nanotube suspensions |
| |
| Authors: | Qilin Cheng Vladimir Pavlinek Ying He Chunzhong Li Petr Saha |
| |
| Affiliation: | (1) Polymer Centre, Faculty of Technology, Tomas Bata University in Zlín, TGM 275, 762 72 Zlín, Czech Republic;(2) Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 200237 Shanghai, China |
| |
| Abstract: | In this paper, one-dimensional polyaniline/titanate (PANI/TN) composite nanotubes were synthesized by in situ chemical oxidative polymerization directed by block copolymer. These novel nanocomposite particles were used as a dispersed phase in electrorheological (ER) fluids, and the ER properties were investigated under both steady and dynamic shear. It was found that the ER activity of PANI/TN fluids varied with the ratio of aniline to titanate, and the PANI/TN suspensions showed a higher ER effect than that made by sphere-like PANI/TiO2 nanoparticles. These observations were well interpreted by their dielectric spectra analysis; a larger dielectric loss enhancement and a faster rate of interfacial polarization were responsible for a higher ER activity of nanotubular PANI/TN-based fluids. |
| |
| Keywords: | Electrorheological fluid Polyaniline Titanate nanotubes Nanocomposite Dielectric properties |
| 本文献已被 SpringerLink 等数据库收录！ |
|
