期刊
ADVANCED FUNCTIONAL MATERIALS
卷 29, 期 37, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201901908
关键词
camouflaging robots; dielectric elastomer actuators; stretchable conducting polymers; transparent soft robots
类别
资金
- Ministry of Education-Singapore under MOE Tier 1 [R-284-000-197-114, R-265-000-609-114]
- A*STAR, Singapore [R-265-000-629-305, A1883c0012]
Transparency is a surprisingly effective method to achieve camouflage and has been widely adapted by natural animals. However, it is challenging to replicate in synthetic systems. Herein, a transparent soft robot is developed, which can achieve effective camouflage. Specifically, this robot is driven by transparent dielectric elastomer actuators (DEAs). Transparent and stretchable conductive polymers, based on blends of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and water-borne polyurethane (WPU), are employed as compliant solid-state electrodes in the DEAs. The electrode exhibits large stretchability, low stiffness, excellent conductivity at large strain, and high transmittance. Consequently, the DEA can achieve a large voltage-induced area strain of 200% and a high transmittance of 85.5%. Driven by these soft actuators, the robot can realize translations using its asymmetric vibration mode, which can be explained by dynamics analysis and is consistent with finite element modeling. This soft robot can achieve effective camouflage, due to its high transparency as well as thin structure. Furthermore, the robot can become completely flat for even better camouflage by converting its 3D structure to 2D. The transparent soft robot is potentially useful in many applications such as robots for battlefield, reconnaissance, and security surveillance, where effective camouflage is required in dynamic and/or unstructured environments.
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