Electrorheological Properties of Phosphoric Ester Cellulose Electrorheological Suspensions at Elevated Temperatures
نویسندگان
چکیده
منابع مشابه
Electrorheological Properties of Polyaniline Suspensions
Polyaniline (PANI) was synthesized via an oxidative coupling polymerization in acid condition and dedoped in ammonium hydroxide solution. Rheological properties of the PANI/silicone oil suspensions were investigated in the oscillatory shear mode to explore the effects of electric field strength, particle concentration, and host fluid viscosity on electrorheological (ER) characteristics. The PAN...
متن کاملThe giant electrorheological effect in suspensions of nanoparticles.
Electrorheology (ER) denotes the control of a material's flow properties (rheology) through an electric field. We have fabricated electrorheological suspensions of coated nanoparticles that show electrically controllable liquid-solid transitions. The solid state can reach a yield strength of 130 kPa, breaking the theoretical upper bound on conventional ER static yield stress that is derived on ...
متن کاملProbing Aspects of Nonlinear Conduction in Electrorheological Suspensions
Particle and electrode surfaces were altered to examine the effects on the electrorheological response of barium titanate/silicone oil suspensions. Unmodified suspensions exhibited nonlinear conduction. The dynamic yield stresses scaled as E, where n < 2 at all electric field frequencies, and the current had substantial harmonic content, a hallmark of nonlinear conduction. Modifying the particl...
متن کاملQuasi-static electrorheological properties of hematite/silicone oil suspensions under DC electric fields.
In this work, a modified rheometer has been used to gain information on the "start-up" of the shear flow of an electrorheological (ER) fluid consisting of hematite particles dispersed in silicone oil. The results show that unelectrified suspensions behave essentially as fluids, continuously deforming upon application of shear. However, this behavior changes in the presence of an electric field....
متن کاملStructure of electrorheological fluids
Specially synthesized silica colloidal spheres with fluorescent cores were used as model electrorheological fluids to experimentally explore structure formation and evolution under conditions of no shear. Using Confocal Scanning Laser Microscopy we measured the location of each colloid in three dimensions. We observed an equilibrium body-centered tetragonal phase and several non-equilibrium str...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Polymer Journal
سال: 2000
ISSN: 0032-3896,1349-0540
DOI: 10.1295/polymj.32.476