Self-healing High-performance dielectric elastomer actuator with novel Liquid-solid interpenetrating structure

被引：35

作者：

Xu, Jiahui ^{[1
]}

Dong, Yiling ^{[2
]}

Jiang, Ziyin ^{[1
]}

Tang, Longcheng ^{[3
]}

Chen, Xiangrong ^{[4
]}

Yao, Zhen ^{[1
]}

Cao, Kun ^{[1
]}

机构：

[1] Zhejiang Univ, Coll Chem & Biol Engn, State Key Lab Chem Engn, Hangzhou 310027, Peoples R China

[2] Indiana Univ, Coll Arts & Sci, Bloomington, IN 47405 USA

[3] Hangzhou Normal Univ, Key Lab Organosilicon Chem & Mat Technol, Minist Educ, Hangzhou 311121, Peoples R China

[4] Zhejiang Univ, Coll Elect Engn, Zhejiang Prov Key Lab Elect Machine Syst, Hangzhou 310027, Peoples R China

来源：

COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2021年 / 149卷

基金：

中国国家自然科学基金;

关键词：

Material: Sandwich Structure; Liquid-solid Interpenetrating structure; Property: Self-healing; Actuation strain; SILICONE; COMPOSITES; PERMITTIVITY; STRAIN;

D O I：

10.1016/j.compositesa.2021.106519

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A self-healing dielectric elastomer actuator (DEA) composed with sandwich structure using silicone rubber as an encapsulating thin shell layer and a piece of open-cell silicone foam filled with hydroxyl silicone oil as an interpenetrating core layer was designed and developed. The novel DEA showed an improved actuated out-of-plane displacement of 10.2 mm and an area strain of 52 % at an electric field of 22.7 kV mm(-1) without prestretching, which was over 6 times higher than that of raw silicone rubber. Moreover, the DEA provided a blocking force of 499.1 Pa when displaced out-of-plane by 3.0 mm and was used to grasp a balloon. In addition, such actuator presented excellent self-healing ability after an electrical breakdown, which is crucial for improving reliability and lifetime of the DEA device. Therefore, the above DEA provides new understanding of the concept of high-performance actuators for promising applications in artificial muscles and soft robots.

引用

页数：8

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