Nanomaterials logo

Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

IvSU logo
Rus Eng


Our Facebook account

SCImago Journal & Country Rank


Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2018, 18 (3), 89—93.
DOI: 10.18083/LCAppl.2018.3.89

Electrorheology of Liquid Crystals

S. V. Pasechnik1, D. V. Shmeliova1, S. S. Kharlamov1, O. A. Semina1, A. Sh. Saidgaziev1, V. G. Chigrinov2

Author affiliations
1Problem Laboratory of Molecular Acoustics, Russian Technological University,
20 Sromynka St., Moscow, 107996, Russia
2Hong Kong University of Science and Technology,
Clear Water Bay, Kowloon, Hong Kong

The results of experimental investigation of rheological properties of a nematic liquid crystal (NLC) 5CB (4-cyano-4'-pentylbiphenyl) confined to submicron pores of polymer PET-films in the presence of AC electric field are presented. The decay flow method, elaborated previously for plane channels, was successfully adopted and applied to the LC-PET composite media, which can be considered as a number of cylindrical channels, connected in parallel schema, filled with flowing LC. It provides the calculation of the effective shear viscosity as a function of the electric field strength. The character of this function indicates on the electrically induced orientation transformation in LC inside pores due to breaking of a surface anchoring.

Keywords: liquid crystals, electrorheology, 4-cyano-4'-pentylbiphenyl

Feedback webmaster