Influence of carrier liquid on nanoparticle-based giant electrorheological fluid

Abstract

The wetting characteristics of the giant electrorheological particles and the suspending fluid were investigated. In contrast to the existing electrorheological fluids, giant electrorheological particles consisting of oxalate core with urea coating are found oil sensitive. The rheological effect of oils from the family of synthetic oil, mineral oil and vegetable oil was studied. The experimental results indicated that hydrogen bonds of the oil chains are instrumental in linking the oil to the giant electrorheological particles; thus, the highest yield stress of giant electrorheological fluid was obtained when hydrogenated silicone oil was used as a suspending phase. Our investigations will provide the compatibility guiding between giant electrorheological particles and liquid phase and may broaden its application to different field, that is, microfluidics with vegetable oil as the carrier liquid.

Polyaniline Coated Core-Shell Typed Stimuli-Responsive Microspheres and Their Electrorheology

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Controlling magnetoelectric coupling effect of CoFe2O4–Ba0.8Sr0.2TiO3 multiferroic fluids by viscosity

“…In the multiferroic fluids, the greater the viscosity of the base liquid, the greater the viscous resistance and the more severe the infiltration of particles; thus, more viscous base liquids are more likely to cause the agglomeration of the magneto-electric nanoparticles. 39 The stress of the CFO magnetic particles in the CFO-BST multiferroic fluids under the action of a magnetic field is shown in Fig. 7.…”

Semi-conducting microspheres formed from glucose for semi-active electric field-responsive electrorheological systems

“…These ERFs are composed of solid electrically polarizable particles dispersed in an insulating liquid medium possessing low dielectric permittivity. 1 The most commonly used non-conductive medium for ERFs is silicone oil but other types of oils can be used as well, such as mineral oil, 2 vegetable oil, 3 paraffin oil, 4 etc. , and inorganic, organic, and composite materials have been used as a dispersed phase in ER fluids.…”