Fabrication and characterization of mesoporous TiO{sub 2}/polypyrrole-based nanocomposite for electrorheological fluid

Journal Article · Mon Dec 01 00:00:00 EST 2008 · Materials Research Bulletin

OSTI ID:21195021

Chuan, Wei ^[1]; Yi, Jin; Xiaoling, Yang; Chunzhong, Li ^[1]

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1. Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237 (China)

Mesoporous TiO{sub 2}/polypyrrole (PPy)-based nanocomposite for electrorheological fluid was synthesized through one-pot method. By exploiting the combination conductivity of PPy and high dielectric constant of TiO{sub 2}, the ER fluid exhibited an enhanced effect. The shear stress was 3.3 times as high as that of mesoporous TiO{sub 2}. Powder X-ray diffraction (XRD), TEM and Fourier transform infrared (FT-IR) spectroscopy were employed to characterize the as-made samples. Using a modified rotational viscometer, the electrorheological effect was measured. Dielectric spectra were also given to explain the mechanism.

• OSTI ID: 21195021
• Journal Information: Materials Research Bulletin, Vol. 43, Issue 12; Other Information: DOI: 10.1016/j.materresbull.2008.02.023; PII: S0025-5408(08)00071-8; Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DIELECTRIC MATERIALS
FABRICATION
FLUIDS
FOURIER TRANSFORMATION
INFRARED SPECTRA
NANOSTRUCTURES
PERMITTIVITY
SHEAR
STRESSES
SYNTHESIS
TITANIUM OXIDES
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION