PEDOT夹心PVDF多孔膜的电驱动性能研究  

Electromechanical Response of Porous PVDF Film Sandwiched by PEDOT Electrodes

作　　者：张晓蝶 丁井鲜 黄建建 王放 马丽 郭东杰 ZHANG Xiaodie;DING Jingxian;HUANG Jianjian;WANG Fang;MA Li;GUO Dongjie(State Laboratory of Surface&Interface,Zhengzhou University of Light Industry,Zhengzhou 450002,China)

机构地区：[1]郑州轻工业大学河南省表界面重点实验室,郑州450002

出　　处：《材料导报》2022年第10期219-224,共6页Materials Reports

基　　金：教育部长江学者创新团队计划(IRT1187);国家自然科学基金-河南省联合(U1704149);河南省科技攻关(202102210292);河南省高等学校重点科研项目(20A530005)。

摘　　要：常规离子聚合物金属复合材料(IPMC)以Pt金属纳米颗粒为电极、Nafion膜作为母体,存在电极刚性大、电极与聚合物母体不兼容、制备成本高等缺陷。本工作采用聚乙烯吡咯烷酮和聚氧化乙烯作为造孔剂、离子液([EMIm]·[BF_(4)])为增塑剂,制备了高多孔度的柔性聚偏氟乙烯(PVDF)母体膜。物化性能测试表明:PVDF膜的多孔度高达26.3%,杨氏模量仅为17.1 MPa。以3,4-乙烯二氧噻吩(EDOT)为单体、FeCl_(3)为催化剂,利用原位化学沉积方法在PVDF膜两侧制备了导电聚(3,4-乙烯二氧噻吩)(PEDOT)电极。施加交流电场后,得到PEDOT电极的IPMC致动器。在0.1 Hz、22 V的条件下,新型IPMC致动器具备连续稳定的驱动性能,末端最大位移输出为6.0 mm。改变驱动电压或频率,位移输出随之发生变化,IPMC致动器展现出了良好的可控性。Conventional ionic polymer-metal composite(IPMC)employs Pt metal nanoparticles as electrodes and Nafion membrane as matrix film,and thus brings severe drawbacks of high electrode rigidity of electrode,an incompatibility between the matrix and the electrodes,and high cost of fabrication.This work used polyvinylpyrrolidone and polyvinyl oxide as the pore-forming agents and ionic liquid of[EMIm]·[BF_(4)]as the plasticizer to prepare a highly porous flexible polyvinylidene fluoride(PVDF)matrix film.Physicochemical tests showed that PVDF matrix presented the high porosity of 26.3%and the low Young's modulus of 17.1 MPa.Using 3,4-vinylenedioxythiophene(EDOT)as the monomer and FeCl_(3) as the catalyst,conductive PEDOT electrodes were anchored on both sides of the PVDF film by in-situ chemical deposition.After applying an AC electric field,a novel IPMC actuator using PEDOT electrode was obtained.In the condition of 0.1 Hz and 22 V,the resultant IPMC actuator showed continuous and stable driving behaviors with a maximum displacement output of 6.0 mm.With driven voltage or frequency changing,the displacement outputs subsequently changed,the IPMC actuator showing a good controllability.

关 键 词：离子聚合物金属复合材料 电活性聚合物(EAP) 聚(3 4-乙烯二氧噻吩) 聚偏氟乙烯 离子液 

分 类 号：TQ317[化学工程—高聚物工业]