采用乳液共混插层法制备了高介电常数的聚苯胺/蒙脱土纳米复合材料微粒聚苯胺/蒙脱土电流变液在外电场下的剪切强度达8.26 kPa(3 kV/mm DC,5 s-1),并具有较好的温度稳定性,其剪切应力在10～100℃内随温度变化仅为6.5%(1.5 kV/mm,DC,1.61 s-1),静置60天沉降率仅为1%.IR及XRD分析表明,聚苯胺插入到蒙脱土层间,形成纳米复合颗粒,TEM标示颗粒的粒径约为100 nm.在1000 Hz,20℃时,聚苯胺/蒙脱土颗粒的介电常数比纯蒙脱土提高2.7倍,比纯聚苯胺提高5.5倍,电导率增加8.5倍.
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