A self-healing composite actuator for multifunctional soft robot via photo-welding

被引：47

作者：

Liu, Mingxia ^{[1
,2
]}

Zhu, Shu ^{[3
]}

Huang, Yanjia ^{[1
]}

Lin, Zihui ^{[2
]}

Liu, Weiping ^{[1
,4
]}

Yang, Lili ^{[1
]}

Ge, Dengteng ^{[2
]}

机构：

[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[2] Donghua Univ, Inst Funct Mat, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China

[3] Donghua Univ, Ctr Civil Aviat Composites, Shanghai Collaborat Innovat Ctr High Performance, Shanghai 201620, Peoples R China

[4] COMAC Shanghai Aircraft Mfg Co Ltd, Ctr Composites, Shanghai 201620, Peoples R China

来源：

COMPOSITES PART B-ENGINEERING | 2021年 / 214卷

基金：

中国国家自然科学基金;

关键词：

Soft robot; Function reconfiguration; Self-healing; Photo-welding; Shape memory polymer; POLYMER NANOCOMPOSITES; SHAPE; LOCOMOTION;

D O I：

10.1016/j.compositesb.2021.108748

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

With the structure design and muscle-like actuators, soft robots have been extensively studied for various application potentials in rescue exploration, medical rehabilitation, military reconnaissance etc. It is highly desirable yet challenging to develop fast 3D-assembly, multifunctional and self-healing soft robots to adapt to rapid changing environments. Inspired by multi-bit screwdriver, we address this challenge using a self-healing light-driven shape memory polymer via photo-welding. Semicrystalline poly (ethylene-co-vinyl acetate) (EVA) involved with silver nanowires (AgNWs) exhibit reversible light-trigged morphing behavior in air or underwater. Additionally, the re-crosslinking of EVA molecular and chain mobility under photothermal effect endows the composite with self-healing property, resulting in fast assembly of soft robotics with sophisticated 3D structures via photo-welding. More importantly, to change the function, the unit could be first cleaved from the main body and then another programmed component could be photo-welded on the main body. Our work provides a facile and cost-effective strategy for creating multifunctional, self-healing soft robots.

引用

页数：8

共 43 条

[1] Temperature-memory polymer actuators [J].