화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.15, No.4, 550-554, July, 2009
DOI10.1016/j.jiec.2008.12.015  Export Citation
Synthesis and electrorheological characteristics of titanate nanotube suspensions under oscillatory shear
Ying He1, 2, Qilin Cheng1, Vladimir Pavlinek1, †, Chunzhong Li3, †, and Petr Saha1
  • 1Polymer Centre, Faculty of Technology, Tomas Bata University in Zlin, TGM 275, 762 72 Zlin, Czech Republic
  • 2Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 200237 Shanghai, China
  • 3Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, 200237Shanghai, China
E-mail:,
In this study, titanate nanotubes (TNTs) were synthesized by hydrothermal treatment of TiO2 powders (P25) in a NaOH solution. The as-synthesized TNTs exhibit high surface area and large aspect ratio. Rheological properties of TNTs suspensions were then investigated under oscillatory shear. The TNTs fluid shows the viscoelastic behavior and the dynamic moduli (G', G") increase significantly by about 4 orders ofmagnitude as the electric field strength is up to 2.0 kV/mm. Transient response under dynamic shear reveals different changes in the microstructure of TNTs fluid from steady shear. The complex modulus of TNTs fluids is sensitive to temperature while that of P25 fluid become insensitive at higher temperature. Dynamic viscoelastic behavior suggests that structure of P25 to TNTs transition merits the enhancement of ER activity of TNTs fluid.
Keywords:Titanate nanotube;Electrorheological fluid;Viscoelastic properties
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