Preparation and Performance of Metal Core/High Polymer Coating Micron-Ｓpheres Compounded-Ｓuspension of Ｅlectrorheological Fluid
Ding Wen¹,Guo Yan²,Fan Zhikang³,Xu Chuanxiang¹
(1.School of Electrical Engineering,Xi'an Jiaotong University,Xi'an 710049 China；2. School of Environmental and Chemical Engineering,Xi'an Jiaotong University;3. Xi'an Institute of Technology)

Abstract: Al/(PSt/PBA)，Zn/(Pst/PBA)and Ni/(PSt/PBA) metal core/high polymer coating micronpheres compounded suspensions of the Electrortheological fluids (ERF) are prepared by emulsion polymerization. The surface of Al and Zn and Ni particles must be modiffied before emulsion polymerization. The performance of the ERF was tested. The results show that the shearstrength is improved over 2 kPa，the average electric field intersity is2.5 kV/mm，the deposit time can be improved over two weeks. The metal core/high polymer coating compounded particles are promising ERF compounded suspensions material.
Keywords: electrortheological fluids;shear strength;compounded-suspension;coat;emulsion polymerization