Multifunctional Untethered Soft Machines Driven by 4D Printed Electrically Responsive Actuators

IF 8.2 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Materials & Interfaces Pub Date : 2025-06-06 DOI:10.1021/acsami.5c0615910.1021/acsami.5c06159

Yuliang Xia, Tong Mu, Jianglong Guo*, Yanju Liu and Jinsong Leng*,

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引用次数: 0

Abstract

Untethered robots, compared with their tethered counterparts, may bring enhanced autonomy. It is highly desirable to engineer multifunctional, lightweight, rapid, and low-voltage driven untethered soft robots that have enhanced adaptability and safer interaction capabilities. Here we present an untethered soft robot by a smart integration of 4D printed liquid crystalline elastomer (LCE) actuators with the associated electronics. The LCE artificial muscle, which consists of a modified LCE sandwiched between a polyimide based heating film and a silicone adhesive, not only has adjustable transition temperatures (39–46 °C) and modulus (0.61–2.57 MPa) but also has decent mechanical properties such as adequate rigidity to support certain loads and sufficient propulsive forces (13.7 MPa) to facilitate robotics motions. As a result, we developed an untethered, compact LCE soft robot that is the lightest (overall weight of 9.87g) and the quickest (0.28 body length per minute), and has the lowest cost of transportation (CoT of 7), among all untethered electric-driven LCE robots. The LCE robot can also be used for grasping and demonstrating obstacle crossing capability on challenging terrains.

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由4D打印电响应执行器驱动的多功能无系绳软机器

与系绳机器人相比，不系绳机器人可能会带来更强的自主性。设计多功能、轻量、快速、低压驱动的无系绳软机器人具有增强的适应性和更安全的交互能力是非常值得期待的。在这里，我们提出了一个无系绳软机器人的智能集成的4D打印液晶弹性体（LCE）执行器与相关的电子设备。LCE人造肌肉由改性LCE夹在聚酰亚胺加热膜和硅酮粘合剂之间组成，不仅具有可调节的转变温度（39-46°C）和模量（0.61-2.57 MPa），而且具有良好的机械性能，如足够的刚度来支持某些负载和足够的推进力（13.7 MPa），以促进机器人运动。因此，我们开发了一种无系绳的紧凑型LCE软机器人，它是所有无系绳电动LCE机器人中最轻（总重量为9.87g）和最快（每分钟0.28体长），运输成本最低（CoT为7）。LCE机器人还可以用于在具有挑战性的地形上抓取和演示障碍物穿越能力。

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来源期刊

ACS Applied Materials & Interfaces 工程技术-材料科学：综合

CiteScore

16.00

自引率

6.30%

发文量

4978

审稿时长

1.8 months

期刊介绍： ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.