应用于静电键合的透光聚氨酯弹性体阴极材料的研究  

Research on Light-transmitting Polyurethane Elastomer Cathode Materials Applied in Electrostatic Bonding

作　　者：赵浩成 刘翠荣[2] 姚志广 张莹 张志超 刘茜秀 ZHAO Haocheng;LIU Cuirong;YAO Zhiguang;ZHANG Ying;ZHANG Zhichao;LIU Qianxiu(Faculty of Energy Chemistry and Materials Engineering,Shanxi Institute of Energy,Jinzhong 030600,Shanxi,China;College of Materials Science and Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China;Faculty of Mechanical and Electrical Engineering,Shanxi Institute of Energy,Jinzhong 030600,Shanxi,China)

机构地区：[1]山西能源学院能源化学与材料工程系,山西晋中030600 [2]太原科技大学材料科学与工程学院,太原030024 [3]山西能源学院机电工程系,山西晋中030600

出　　处：《材料导报》2023年第22期215-220,共6页Materials Reports

基　　金：国家自然科学基金(51875384);山西省自然科学研究面上项目(202203021211284)。

摘　　要：通过原料配方选择、分子结构设计以及合成工艺优化等方法,制备了三种可用于静电键合的高透光聚氨酯弹性体电解质阴极材料(TPUEEs),该材料具有无定形结构,结晶度低,在可见光区的透光率均达到80%以上;TPUEEs具有良好的低温柔顺性和热稳定性,其玻璃化转变温度T g均低于-40℃,其5%热分解温度T d,5%均高于200℃;TPUEEs在静电键合温度(70℃)下具有较高的离子导电率,其中TPUEE3的离子导电率达到1.9×10-3 S·cm-1,满足静电键合对阴极材料的要求。通过热引导动态场静电键合工艺实现TPUEEs和铝片(Al)的静电键合封接(TPUEEs-Al),在SEM图中可观察到清晰的中间键合层,其中TPUEE3-Al的键合强度达到0.91 MPa。本研究实现了透光聚合物阴极材料的静电键合封接,为静电键合在柔性光电类器件的应用提供了理论基础和参考经验。Three kinds of transparent polyurethane elastomer electrolyte cathode materials(TPUEEs)for electrostatic bonding are prepared through raw material formulation selection,molecular structure design and synthesis process optimization.Having theamorphous structure,the crystallinity of the materials are low,and their transmittance in the visible region are more than 80%.The TPUEEs are characterized by good heat resis-tance that the 5%thermal decomposition temperatures Td,5%are higher than 200℃.The glass transition temperatures Tg are lower than-40℃showing good flexibility.All TPUEEs have high ionic conductivity meeting the requirements of electrostatic bonding for cathode materials,and the highest value at 70℃(the temperature required for bonding)is reached to 1.9×10-3 S·cm-1 for TPUEE3.The jointing of TPUEEs and aluminum(Al)sheet(TPUEEs-Al)is realized by electrostatic bonding characterized by thermal guidance and dynamic field.A clear intermediate bonding layer of TPUEEs-Al can be observed in the SEM image,in which the bonding strength of TPUEE3-Al can be reached to 0.91 MPa.This study realizes the electrostatic bonding seal of light-transmitting polymer cathode materials,which provides some theoretical basis and reference experience for the application of electrostatic bonding in flexible optoelectronic devices.

关 键 词：静电键合 透光率 聚氨酯弹性体 柔性器件 聚合物电解质 

分 类 号：TB34[一般工业技术—材料科学与工程]