A Fast Autonomous Healing Magnetic Elastomer for Instantly Recoverable, Modularly Programmable, and Thermorecyclable Soft Robots

被引:100
作者
Cheng, Yin [1 ]
Chan, Kwok Hoe [1 ]
Wang, Xiao-Qiao [1 ]
Ding, Tianpeng [1 ]
Li, Tongtao [1 ]
Zhang, Chen [1 ]
Lu, Wanheng [1 ]
Zhou, Yi [1 ]
Ho, Ghim Wei [1 ]
机构
[1] Natl Univ Singapore, Dept Elect & Comp Engn, 4 Engn Dr 3, Singapore 117583, Singapore
关键词
amphibious self-healing; magnetic soft robots; modular assembly; supramolecular elastomers; POLYMER NETWORKS; HYDROGELS; TENDRIL; DESIGN; TOUGH;
D O I
10.1002/adfm.202101825
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Intrinsically self-healing stretchable polymers have been intensively explored for soft robotic applications due to their mechanical compliance and damage resilience. However, their prevalent use in real-world robotic applications is currently hindered by various limitations such as low mechanical strength, long healing time, and external energy input requirements. Here, a self-healing supramolecular magnetic elastomer (SHSME), featuring a hierarchical dynamic polymer network with abundant reversible bonds, is introduced. The SHSME exhibits high mechanical strength (Young's modulus of 1.2 MPa, similar to silicone rubber) and fast self-healing capability (300% stretch strain after 5 s autonomous repair at ambient temperature). A few SHSME-based robotic demonstrations, namely, rapid amphibious function recovery, modular-assembling-prototyping soft robots with complex geometries and diverse functionalities, as well as a dismembering-navigation-assembly strategy for robotic tasking in confined spaces are showcased. Notably, the SHSME framework supports circular material design, as it is thermoreformable for recycling, demonstrates autorepair for extended lifespan, and is modularizable for customized constructs and functions.
引用
收藏
页数:10
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