离子液体对IPMC性能的影响  

Influence of ion liquid on the performance of IPMC

作　　者：张小青[1] 于敏[1] 何青松[1] 戴振东[1] 

机构地区：[1]南京航空航天大学仿生材料与结构防护研究所,江苏南京210016

出　　处：《化学工程师》2012年第1期1-5,共5页Chemical Engineer

基　　金：国家自然科学基金项目(51175251);国家自然科学基金青年项目(50705043)

摘　　要：离子聚合物金属复合材料(Ionic Polymer Metal Composite)作为新型的电致动材料具有巨大的应用潜力。但就目前国内外研究结果显示,现有的IPMC电致动材料仍具有一个显著的的缺点:非水工作时间短。本文通过用离子液体1-乙基-3-甲基咪唑硫氰酸盐(EMImSCN)替代水作为IPMC中的溶剂,以此来提高IPMC的非水工作时间。实验结果表明:在4V正弦交流电压下,当IPMC在空气中作用时间延长至320s时,以水为介质的IPMC位移减小了93%,位移大小几乎为0,而以[EMIm]SCN为介质的IPMC位移减小了63%,并长期处于一个稳定的位移值不变。As the new electric actuator materials,ionic polymer metal composite（IPMC） possess enormous applicable potential.However,the present researches at home and abroad show that there is still a prominent deficiency in the existing IPMC-short air-operating time.This study used the ionic liquid SCN,instead of water,as solvent in IPMC in order to prolong the air-operating time of IPMC.The results showd that under 4V sinusoidal alternating voltage,when IPMC have worked in air for 320 seconds,the displacement of IPMC with water as solvent reduced by 93% to a level of almost zero;while the displacement of IPMC with SCN as solvent reduced by 63% and maintains a final stable level for a long time.

关 键 词：离子液 非水工作时间 IPMC 

分 类 号：O645.13[理学—物理化学]