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首页> 外文期刊>Journal of Applied Polymer Science >THREE WAYS TO IMPROVE ELECTRORHEOLOGICAL PROPERTIES OF POLYANILINE-BASED SUSPENSIONS
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THREE WAYS TO IMPROVE ELECTRORHEOLOGICAL PROPERTIES OF POLYANILINE-BASED SUSPENSIONS

机译：改善基于聚苯胺的悬浮液的流变学性质的三种方法

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摘要

In order to improve further the electrorheological (ER) properties of polyaniline (PAn)-based suspensions, i.e., to enhance the static yield stress and to reduce the current density, three methods, namely, coating of the PAn particles with polymer, grafting on the particles with acrylamide, and nonequilibrium dedoping of the PAn particles with concentrated ammonia water, were tried. The results showed that PAn particles coated with poly(vinyl alcohol) or grafted with polyacrylamide can increase the static yield stress and decrease the current density of the ER suspension, whereas coating with poly (methyl methacrylate) or polystyrene reduced both the current density and the static yield stress. Nonequilibrium dedoping of the dried, protonated PAn particles with concentrated ammonia water showed the best effect on the ER properties of the suspension, exhibiting a static yield stress of 16 kPa with a current density of 2.7 mu A/cm(2) under a 2.8 kV/mm de electric field. (C) 1997 John Wiley & Sons, Inc. [References: 9]
机译：为了进一步改善基于聚苯胺（PAn）的悬浮液的电流变性能（ER），即提高静态屈服应力和降低电流密度，三种方法，即用聚合物涂覆PAn颗粒，然后接枝尝试了使用丙烯酰胺的颗粒，以及用浓氨水对PAn颗粒的非平衡去掺杂。结果表明，涂​​有聚乙烯醇或接枝聚丙烯酰胺的PAn颗粒可增加静态屈服应力并降低ER悬浮液的电流密度，而涂有聚甲基丙烯酸甲酯或聚苯乙烯则可降低电流密度和电导率。静态屈服应力。用浓氨水对干燥的质子化的PAn颗粒进行非平衡去掺杂对悬浮液的ER性能表现出最好的影响，在2.8 kV的电压下，静态屈服应力为16 kPa，电流密度为2.7μA / cm（2） / mm de电场。 （C）1997 John Wiley＆Sons，Inc. [参考：9]

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