Journal of Sol-Gel Science and Technology

, Volume 47, Issue 3, pp 311–315 | Cite as

Wettability of urea-doped TiO2 nanoparticles and their high electrorheological effects

  • Jianhong Wei
  • Lihong Zhao
  • Suili Peng
  • Jing Shi
  • Zhengyou Liu
  • Weijia Wen
Original Paper


Aimed at the increasement of ER effects, a novel composite, urea doped-TiO2 particles (TU) were prepared by using a modified sol–gel method. The structure and morphology of the TU particles were observed and analyzed by scanning electron micrpscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared spectrometry(FT-IR) and X-ray photoelectron spectrum (XPS). The dielectric properties of the TU particles and the ER effects based on the TU particles were investigated. The influence of wettability on the ER performance between the particles and silicone oil was examined.


Wettability Electrorheological effect Sol–gel Dielectric properties 



We are grateful for the financial support from the National Natural Science Foundation of China (Grant Nos. 10418014 & 10474074).


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Copyright information

© Springer Science+Business Media, LLC 2008

Authors and Affiliations

  • Jianhong Wei
    • 1
  • Lihong Zhao
    • 1
  • Suili Peng
    • 1
    • 2
  • Jing Shi
    • 1
  • Zhengyou Liu
    • 1
  • Weijia Wen
    • 2
  1. 1.Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education, Department of PhysicsWuhan UniversityWuhanPeople’s Republic of China
  2. 2.Department of Physics, Institute of Nano Science and TechnologyThe Hong Kong University of Science and TechnologyKowloonHong Kong, China

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