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电流变智能流体在外电场刺激下能快速可逆地改变自身流变性能,具有重要技术应用价值.传统的基于微米颗粒的电流变流体易于沉降并且电致屈服强度不高限制了技术应用,最近基于纳米颗粒的非传统电流变材料研究受到重视,特别是具有各向异性形貌的纳米颗粒悬浮液被发现具有明显增强的电/磁流变效应.本文介绍了最近基于石墨烯的二维纳米复合电流变材料的研究进展,主要包括石墨烯/半导聚合物、石墨烯/极性聚合物、石墨烯/碳等几种典型的电流变材料的制备、结构和电流变行为.研究表明利用石墨烯独特的二维纳米结构、优异的电学和热学性质可能为制备新颖的高性能纳米电流变材料提供途径。
Electrorheological fluid can quickly and reversibly change its rheological properties under the external electric field stimulation, which has important technical application value.Traditional microparticle-based electrorheological fluid is easy to settle and the yield strength is not high, which restricts the application of technology. Recently, Non-traditional electrorheological materials have attracted much attention recently, especially the nano-particles suspensions with anisotropic morphologies have been found to have significantly enhanced electro-magnetorheological effect.In this paper, the recent developments of graphene based two-dimensional nano-composite current The research progress of the materials has been reviewed, including the preparation, structure and electrorheological behavior of several typical electrorheological materials, such as graphene / semiconducting polymers, graphene / polar polymers, graphene / carbon etc. The research shows that the use of graphene Unique two-dimensional nanostructures, excellent electrical and thermal properties may provide a way to prepare novel high-performance nano-electrorheological materials.