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High Performance and Multifunction Moisture-Driven Yin–Yang-Interface Actuators Derived from Polyacrylamide Hydrogel
Small ( IF 13.0 ) Pub Date : 2023-05-17 , DOI: 10.1002/smll.202303228 Jingjing Li 1, 2 , Guanghao Zhang 2 , Zhanpeng Cui 3 , Lili Bao 3 , Zhigang Xia 1 , Zunfeng Liu 2 , Xiang Zhou 3
Small ( IF 13.0 ) Pub Date : 2023-05-17 , DOI: 10.1002/smll.202303228 Jingjing Li 1, 2 , Guanghao Zhang 2 , Zhanpeng Cui 3 , Lili Bao 3 , Zhigang Xia 1 , Zunfeng Liu 2 , Xiang Zhou 3
Affiliation
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High actuation performance of a moisture actuator highly depends on the presence of a large property difference between the two layers, which may cause interfacial delamination. Improving interfacial adhesion strength while increasing the difference between the layers is a challenge. In this study, a moisture-driven tri-layer actuator with a Yin–Yang-interface (YYI) design is investigated in which a moisture-responsive polyacrylamide (PAM) hydrogel layer (Yang) is combined with a moisture-inert polyethylene terephthalate (PET) layer (Yin) using an interfacial poly(2-ethylhexyl acrylate) (PEA) adhesion layer. Fast and large reversible bending, oscillation, and programmable morphing motions in response to moisture are realized. The response time, bending curvature, and response speed normalized by thickness are among the best compared with those of previously reported moisture-driven actuators. The excellent actuation performance of the actuator has potential multifunctional applications in moisture-controlled switches, mechanical grippers, and crawling and jumping motions. The Yin–Yang-interface design proposed in this work provides a new design strategy for high-performance intelligent materials and devices.
中文翻译：
由聚丙烯酰胺水凝胶衍生的高性能多功能湿气驱动阴阳界面致动器
湿度致动器的高致动性能很大程度上取决于两层之间是否存在较大的性能差异，这可能导致界面分层。提高界面粘合强度同时增加层间差异是一个挑战。在这项研究中，研究了一种具有阴阳界面（YYI）设计的湿气驱动三层致动器，其中湿敏聚丙烯酰胺（PAM）水凝胶层（Yang）与湿气惰性聚对苯二甲酸乙二醇酯（ PET）层（Yin）使用界面聚（丙烯酸2-乙基己酯）（PEA）粘合层。实现了响应湿度的快速、大的可逆弯曲、振荡和可编程变形运动。与之前报道的湿气驱动执行器相比，响应时间、弯曲曲率和按厚度归一化的响应速度是最好的。执行器优异的执行性能在湿度控制开关、机械抓手以及爬行和跳跃运动方面具有潜在的多功能应用。这项工作提出的阴阳界面设计为高性能智能材料和器件提供了一种新的设计策略。
更新日期：2023-05-17
中文翻译：
由聚丙烯酰胺水凝胶衍生的高性能多功能湿气驱动阴阳界面致动器
湿度致动器的高致动性能很大程度上取决于两层之间是否存在较大的性能差异，这可能导致界面分层。提高界面粘合强度同时增加层间差异是一个挑战。在这项研究中，研究了一种具有阴阳界面（YYI）设计的湿气驱动三层致动器，其中湿敏聚丙烯酰胺（PAM）水凝胶层（Yang）与湿气惰性聚对苯二甲酸乙二醇酯（ PET）层（Yin）使用界面聚（丙烯酸2-乙基己酯）（PEA）粘合层。实现了响应湿度的快速、大的可逆弯曲、振荡和可编程变形运动。与之前报道的湿气驱动执行器相比，响应时间、弯曲曲率和按厚度归一化的响应速度是最好的。执行器优异的执行性能在湿度控制开关、机械抓手以及爬行和跳跃运动方面具有潜在的多功能应用。这项工作提出的阴阳界面设计为高性能智能材料和器件提供了一种新的设计策略。
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