Deep eutectic solvent inclusions for high-k composite dielectric elastomers  

作　　者：Changgeng Zhang Qi Zhang 

机构地区：[1]School of Science and Engineering,The Chinese University of Hong Kong,Shenzhen,Shenzhen 518172,China

出　　处：《Frontiers of Chemical Science and Engineering》2022年第6期996-1002,共7页化学科学与工程前沿（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.22078276);the Program for Guangdong Introducing Innovative and Entrepreneurial Teams(Grant No.2017ZT07C291);Shenzhen Science and Technology Program(Grant No.KQTD20170810141424366);Shenzhen Key Laboratory of Advanced Materials Product Engineering(Grant No.ZDSYS20190911164401990);Qi Zhang thanks the Presidential Fund(Grant No.PF01000949)for supporting his research at CUHK-Shenzhen.

摘　　要：Recent advances in novel electroactive devices have placed new requirements on material development.High-performance dielectric elastomers with good mechanical stretchability and high dielectric constant are under high demand.However,the current strategy for fabricating these materials suffers from high cost or low thermal stability,which greatly hinders large-scale industrial production.Herein,we have successfully developed a novel strategy for improving the dielectric constant of polymeric elastomers via deep eutectic solvent inclusion by taking advantage of the low cost,convenient and environmentally benign synthesis process and high ionic conductivity from deep eutectic solvents.The as-prepared composite elastomers showed good stretchability and a greatly enhanced dielectric constant with a negligible increase in dielectric dissipation.Moreover,we have proven the universality of our strategy by using different types of deep eutectic solvents.It is believed that low-cost,easy-synthesis and environmentally friendly deep eutectic solvents including composite elastomers are highly suitable for large-scale industrial production and can greatly broaden the application fields of dielectric elastomers.

关 键 词：composite materials deep eutectic solvent dielectric elastomer high dielectric constant 

分 类 号：TB33[一般工业技术—材料科学与工程]