聚苯胺类电流变体的稳态剪切流动分析(英文)  

The Steady Shearing Flow Analysis of Polyaniline Type Electrorheological Fluids

作　　者：苏恺[1] 张惠珍[1] 李秀错[1] 张留成[1] 

机构地区：[1]河北工业大学高分子科学与工程研究所,天津300130

出　　处：《Chinese Journal of Chemical Physics》2001年第5期575-580,共6页化学物理学报（英文）

摘　　要：对聚苯胺、及聚苯胺 /聚丙烯酸盐复合粒子的稳态剪切流动行为进行了综合考察。结果表明 ,在交流电场下 ,电流变体的剪切应力和剪切速率的关系符合Bingham流体形为。并对此现象进行了分析 。The yielding stresses or viscosity of electrorheological fluids increase by order of magnitude when electric fields are applied on them. The steady flow of electrorheological fluids based on polyaniline, polyaniline/(acrylic polyelectrolyte) composite particles were studied. The relationship between shear stress and shear rate under different AC field strengths was measured. Analysis is made to study the relationship between the yielding stress, as well as sensibility of shearing, and field strength. Furthermore, in the analysis under DC field strength, pseudoplastic behavior was found and interpreted. Distinctive differences of the flow behavior between the cases under DC and AC field were found. An original and effective expression was employed to characterize the flow behavior under a DC field.

关 键 词：电流变液 剪切应力 剪切速率 聚苯胺 交流电场 稳态剪切流动 

分 类 号：O37[理学—流体力学]