当前位置:群英聚首 > 论文著作 > 正文
Bending electromechanical actuation mechanism and properties of nanostructured dielectric poly (styrene-b- (ethylene-co-butylene)-b-styrene) / white mineral oil (SEBS/WO) blend elastomers
来源:梁永日教授个人网站 发布日期:2023-03-03
作者:Yi Liu, Pingli Wang*, Yongri Liang*
关键字:Bending actuation, Electromechanical ,Soft actuator, Nanostructured dielectric elastomer
论文来源:期刊
具体来源:Polymer 268 (2023) 125709
发表时间:2023年

Dielectric elastomers (DEs) as one class of electronic type of electroactive polymers (EAPs) can be deformed under electrical stimulation, and have important applications in the soft robots, wearable electronic devices, and medical rehabilitation machinery so on. In this work, the bending actuation mechanism, and electromechanical properties of nanostructured dielectric poly (styrene-b-(ethylene-co-butylene)-b-styrene)/white mineral oil (SEBS/WO) blend films were investigated under free electrodes condition. The morphology and mechanical properties of SEBS/WO films were adjusted by the content of WO, where the WO selectively swelled the poly (ethylene-co-butylene) (PEB) domains. The phase transition of lamellar (LAM) structure to hexagonal array packed cylinder (HEX) of SEBS/WO films was observed when added WO content larger than 17 wt%. The modulus and the polystyrene (PS) domain radius of SEBS/WO blend films with HEX structure were decreased as increase of WO weight fraction. The bending displacement of SEBS/WO films was almost linearly dependent on the applied electric voltages, and the single cantilever model based calculated bending force was almost linearly dependent on inverse of PS domain radius for SEBS/WO films with HEX morphology. The bending actuation mechanism of SEBS/WO films with HEX morphology was suggested that the bending actuation of SEBS/WO films was caused by electrostatic attraction force between inter-PS domains induced squeezing deformation of poly (ethylene-co-butylene) (PEB) domains. The SEBS/WO blend films with 50 wt% of WO content showed 6.54 mm

(corresponding to 23.56?) at 2 kV (50 V/mm of nominal electric field). Our results can provide new insight on development of nanostructured electroactive elastomers for applications in the soft actuator materials.

Copyright © 2005 Polymer.cn All rights reserved
中国聚合物网 版权所有
经营性网站备案信息

京公网安备11010502032929号

工商备案公示信息

京ICP证050801号

京ICP备12003651号