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Erschienen in: Colloid and Polymer Science 18/2010

01.12.2010 | Short Communication

Synthesis and electrorheological properties of oxalate group-modified amorphous titanium oxide nanoparticles

verfasst von: Fenghua Liu, Gaojie Xu, Jinghua Wu, Yuchuan Cheng, Jianjun Guo, Ping Cui

Erschienen in: Colloid and Polymer Science | Ausgabe 18/2010

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Abstract

A kind of titanium oxide nanoparticles modified with varying amounts of oxalate group was prepared using a modified hydrolysis method. The microstructure, dielectric properties, and electrorheological (ER) performance were investigated. The results indicate that the oxalate group can effectively improve the dielectric properties and surface polarizability of the particles, and the ER performance of modified titanium oxide-based ER fluid is much higher than that of pure titanium oxide-based ER fluid. The shear stress of suitable oxalate group-modified amorphous titanium oxide-based ER fluid with a volume fraction of 30% reaches 47.5 kPa at E = 5 kV/mm, and the current density is less than 18 μAcm−2. The yield stress can be up to 114 kPa at E = 5 kV/mm with a volume fraction of 40%.

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Metadaten
Titel
Synthesis and electrorheological properties of oxalate group-modified amorphous titanium oxide nanoparticles
verfasst von
Fenghua Liu
Gaojie Xu
Jinghua Wu
Yuchuan Cheng
Jianjun Guo
Ping Cui
Publikationsdatum
01.12.2010
Verlag
Springer-Verlag
Erschienen in
Colloid and Polymer Science / Ausgabe 18/2010
Print ISSN: 0303-402X
Elektronische ISSN: 1435-1536
DOI
https://doi.org/10.1007/s00396-010-2291-x

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