一种新型半导体ER流体材料的设计及实验分析

寻求一种新型的电敏粒子材料,旨在提高电流变流体的电流变效应.制备一种含有氮、氧、硫类杂原子与大π共轭体系的高聚物--聚萘醌作为电敏粒子材料.含这种材料的电流变流体在交、直流电场下有明显的电流变效应,特别是在交变电场作用下,与其它材料相比,其剪切应力与电压成良好的二次关系.实验结果表明,含有大π共轭体系的有机半导体高聚物是一种新型的具有开发价值的电敏粒子材料.

Material Design and Experimental Analysis of a New Type of Semiconductor ER Fluids

To improve the electrorheological effect of electrorheological fluid (ERF), a new type of the electrosensitive particle material, polynaphthalene quinone was prepared, whose molecules contain blended atoms of nitrogen, oxygen, sulphur and big π-bond conjugate system. In both DC and AC electric fields, the ERF material showed a distinct ER effect. Especially, in the alternating electric field, the shear stress of this material versus AC voltage has a better quadratic relation than that of the other materials. The experimental data showed that organic semiconductor polymers with big π-bond conjugate system are a new type of electrosensitive particle materials which are worth well developing.