Influence of particle size on shear behavior of amine-group-immobilized polyacrylonitrile dispersed suspension under electric field
- Influence of particle size on shear behavior of amine-group-immobilized polyacrylonitrile dispersed suspension under electric field
- 고영건; 최웅수; 전영진
- colloidal susepension; amine immobilized PAN; electrorheology; modeling; shear stress; aminated polyacrylonitrile; particle size
- Issue Date
- Journal of colloid and interface science
- VOL 335, 183-188
- Different-sized particles dispersed electrorheological (ER) fluids were fabricated with poly(acryloamidino
diethylenediamine) to observe the influence of the particle size on ER behaviors. The fine particles dispersed
ER suspension showed stable shear stress under a DC electric field. On the other hand, the rough
particles dispersed suspension showed trembling shear stress which is divided into four regions in a plot
of shear stress against shear rate. Our suggested spring–damper model equation treated the wide range
of shear rate and specific (trembling) behaviors of shear stress in ER fluids. In this study, we successfully
obtained various ER fluids showing different behaviors just by changing the size of particles in the ER fluids.
All of the curves of the shear stress plotted against shear rate were fitted well by our spring–damper
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