期刊
DIAMOND AND RELATED MATERIALS
卷 14, 期 3-7, 页码 766-769出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.diamond.2004.12.052
关键词
carbon nanotube; polyaniline; poly(vinyl alcohol); electrorheology
Conducting polyaniline (PANT) was synthesized via an oxidative dispersion polymerization using poly(vinyl alcohol) (PVA) as a polymeric stabilizer in the presence of multi-walled carbon nanotubes (MWNT) which were purified in an acidic solution. The formation of nanocomposites and their morphology in which the PANT was pierced with MWNT like a pearl necklace structure, were confirmed by scanning electron microscopy (SEM). An electrorheological (ER) fluid was prepared with synthesized MWNT/PANI particles dispersed in insulating silicone oil and its ER properties were investigated by controlling applied DC electric field strengths. Synthesized MWNT/PANI particles have enhanced interparticle interactions, and the shear stresses increase with the electric field strength for a broad range of shear rate as the degree of polarization of MWNT/PANI particle increases with applied electric field strengths. (c) 2005 Elsevier B.V. All rights reserved.
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