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Citation: Hasim Yilmaz. ELECTRORHEOLOGICAL PROPERTIES OF DIATOMITE/SILICONE OIL SUSPENSIONS UNDER DC FIELDS[J]. Chinese Journal of Polymer Science, ;2006, 24(5): 463-471. shu

ELECTRORHEOLOGICAL PROPERTIES OF DIATOMITE/SILICONE OIL SUSPENSIONS UNDER DC FIELDS

  • Corresponding author: Hasim Yilmaz, 
  • Received Date: 24 October 2005
    Revised Date: 9 December 2005

  • Inthisstudy,electrorheological(ER)behaviorofsuspensionspreparedfrom3.0and9.0mdiatomiteparticulate,dispersedininsulatingsiliconeoil(SO)mediumwasinvestigated.Sedimentationstabilitiesofsuspensions(c=5wt%)preparedusingthesediatomitepowdersweredeterminedtobe32days(d=3m)and24days(d=9m),respectively.ERactivityofallthesuspensionswasobservedtoincreasewithincreasingelectricfieldstrength,concentrationanddecreasingshearrate.Shearstressofdiatomitesuspensionsincreasedlinearlywithincreasingconcentrationsoftheparticlesandwiththeappliedelectricfieldstrength.Electricfieldviscosityofallthesuspensionsdecreasedsharplywithincreasingshearrateandparticlesize,showingatypicalshearthinningnon-Newtonianvisco-elasticbehavior.EffectsofhightemperatureandpolarpromoterontoERactivityofdiatomite/SOsystemwerealsoinvestigated.
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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