Abstract A two-dimensional composite material, poly(ionic liquid)-modified graphene oxide/polypyrrole (GO/PPy/PIL) multilayered nanosheets, was fabricated and applied as a new electrorheological (ER) material. The morphological differences between the single- and dual-coated nanosheets were confirmed using scanning electron microscopy and transmission electron microscopy. Rheological properties measured using a rotational rheometer indicated that the GO/PPy/PIL composite nanosheets exhibited relatively high ER effect under a certain electric field strength than the GO/PPy nanosheets because of the universal PIL second coating. The dual-coated nanosheets also showed a higher applicable electric field strength due to the semiconductive properties of the thick PIL layer.

中文翻译：

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聚吡咯和聚（离子液体）制备双涂层氧化石墨烯纳米片及其增强的电流变响应

摘要 制备了一种二维复合材料，聚（离子液体）改性氧化石墨烯/聚吡咯（GO/PPy/PIL）多层纳米片，并将其作为一种新型电流变（ER）材料应用。使用扫描电子显微镜和透射电子显微镜证实了单涂层和双涂层纳米片之间的形态差异。使用旋转流变仪测量的流变特性表明，由于通用的 PIL 二次涂层，GO/PPy/PIL 复合纳米片在一定电场强度下比 GO/PPy 纳米片表现出较高的 ER 效应。由于厚 PIL 层的半导体特性，双涂层纳米片还显示出更高的适用电场强度。