黏土作为电流变材料的分散相已有报道，而活性剂对其电流变性能的影响研究不多。采用不同浓度的十六烷基三甲基溴化铵(CTAB)对凹凸棒石黏土(ATC)进行改性，对比了施加电场前后其电流变性能的变化规律，结果表明：改性凹凸棒石黏土在电场E作用下表现出Bingham流体特性，并且屈服应力τy与E0.4成正比；65 ℃是电流变性能突变的临界温度；通过介电性能的测试，发现CTAB对电流变响应的贡献较大。60 d后，改性凹凸棒石黏土的悬浮率仍可达到91%。
 

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