IDEAS home Printed from https://ideas.repec.org/a/eee/phsmap/v353y2005icp21-28.html
   My bibliography  Save this article

The effect of polyaniline layer deposited on silica particles on electrorheological and dielectric properties of their silicone–oil suspensions

Author

Listed:
  • Pavlínek, Vladimír
  • Sáha, Petr
  • Kitano, Takeshi
  • Stejskal, Jaroslav
  • Quadrat, Otakar

Abstract

Investigation of the electrorheological (ER) effect of silicone–oil suspensions of silica particles coated with polyaniline (PANI) base in a DC electric field revealed that breaking stress, as a criterion of the intensity of the ER phenomenon, steeply increased at first with coating thickness. At relatively low PANI content (weight fraction ≈0.05), it reached a value several times higher than that with suspension of uncoated silica. Then it became virtually constant or slightly increased. The frequency spectra of dielectric characteristics of these systems reflect high relaxation times. The results suggest that the interfacial polarization of particles is predominantly controlled by polarizability of their surface layer, and the influence of the layer thickness is of secondary importance.

Suggested Citation

  • Pavlínek, Vladimír & Sáha, Petr & Kitano, Takeshi & Stejskal, Jaroslav & Quadrat, Otakar, 2005. "The effect of polyaniline layer deposited on silica particles on electrorheological and dielectric properties of their silicone–oil suspensions," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 353(C), pages 21-28.
  • Handle: RePEc:eee:phsmap:v:353:y:2005:i:c:p:21-28
    DOI: 10.1016/j.physa.2005.01.033
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0378437105000713
    Download Restriction: Full text for ScienceDirect subscribers only. Journal offers the option of making the article available online on Science direct for a fee of $3,000

    File URL: https://libkey.io/10.1016/j.physa.2005.01.033?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Belza, T. & Pavlínek, V. & Sáha, P. & Beneš, M.J. & Horák, D. & Quadrat, O., 2007. "Electrorheology of silicone oil suspensions of urea-modified poly[(glycidyl methacrylate)-co-(ethylene dimethacrylate)] particles," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 385(1), pages 1-8.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:phsmap:v:353:y:2005:i:c:p:21-28. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/physica-a-statistical-mechpplications/ .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.