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The effect of polyaniline content deposited on silica gel particles on the electrorheology of silicone-oil suspensions

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F05%3A63503778" target="_blank" >RIV/70883521:28110/05:63503778 - isvavai.cz</a>

  • Alternative codes found

    RIV/61389013:_____/05:00021583

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    The effect of polyaniline content deposited on silica gel particles on the electrorheology of silicone-oil suspensions

  • Original language description

    Investigation of the electrorheological effect of silicone-oil suspensions of silica particles coated with polyaniline base in a DC electric field revealed that breaking stress, as a criterion the intensity of the electrorheological phenomenon, steeply increased at first with coating thickness. At relatively low polyaniline content (volume fraction ? 0.05), it has reached a value several times higher than that with suspension of pure silica. Then they became virtually constant or slightly increased. Thefrequency 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 ofthe layer thickness is of secondary importance.

  • Czech name

    Vliv obsahu polyanilínu na částicích siliky na elektrorheologii suspenzí v silikonovém oleji

  • Czech description

    Studium elektroreologického (ER) efektu u suspenzí siliky upravené polyanilínovou (PANI) bází ukázaly, že v DC elektrickém poli kritické prahové napětí nejprve strmě vzrůstá s tloušťkou potahové vrstvy. Při relativně nízkém obsahu PANI (objemový zlomek ?0,05) dosahuje hodnoty několikanásobné proti neupravené silice. Dále se pak napětí příliš nemění. Frekvenční spektra dielektrických vlastností těchto systémů ukazují vysoké relaxační časy. Mezifázová polarizace částic je řízena polarizovatelností povrchové vrstvy částic a tloušťka této vrstvy má až druhořadý význam.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    JJ - Other materials

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2005

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    International Journal of Modern Physics B

  • ISSN

    0217-9792

  • e-ISSN

  • Volume of the periodical

    19

  • Issue of the periodical within the volume

    7,8,9

  • Country of publishing house

    SG - SINGAPORE

  • Number of pages

    7

  • Pages from-to

    1097-1103

  • UT code for WoS article

  • EID of the result in the Scopus database