【用聚合物作为悬浮粒子的电流变液的设计性能和机理的研究】官建国.pdf

Dissertation submitted toHuazhongUniversity ofScience andTechnologyfor theDegreeof Doctor of Philosophy in Engineering Study on Design,Properties and Mechanism of ElectrorheologicalFluids Containing Polymer as Dispersed Particles Ph.D.

用共混或接枝共聚法对PAn粒子进行表面改性和对特定方法合成的PAn粒子用浓氨水进行非平衡反掺杂等三种方法,制备了具有核壳结构的PAn复合粒子,并用它们组成了ER液,得到了E=2kV/mm时,t,高达16kPa,J仅为2μA/cm2的高性能ER液。研究了核壳型复合粒子中的壳层物质的含量及其壳层物质与核之问的相互作用和ER效应的关系,认为当壳层物质与核之间有较强的相互作用时,用核壳型复合粒子能改善ER液的性能。指出t,偏离t,CCE和t,的实验值低于极化机理理论的预测值的原因是ER液中有漏电流以及J随E按指数形式增加。

respectively.Anhydrous ER fluids based on AB crosslinked polyether electrolytes were directly synthesized byinverse suspension polymerization ofBMAPEGafter complexing withLiCIOor ofBMAPEGandMAAM.TheInfluence of structure ofpolyelectrolytes on t,andJfor the ERfluidwere studied and the anhydrousERflui