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Sedimentation upon different carrier liquid in giant electrorheological fluid

YAYING Hong  WEIJIA Wen  
【摘要】:Colloidal stability in giant electrorheological(GER)fluid can influence the GER performance and the fluid flow steadiness.We investigated the sedimentation effect of the GER particles suspended in various carrier liquid.Different from the existing electrorheological(ER)fluids,GER particles consisting of oxalate core with urea coating are found oil synergistic.The sedimentation effect of the particles suspended in oils from the family of synthetic oil and mineral oil were checked by direct observation.The rheological behavior of the GER fluid upon electric field application was also investigated.The resultant high yield stress and low sedimentation rate achieved due to the instrumental linking of hydrogen bond is showed in the hydrogenated silicone oil carrier liquid.

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