海绵
肿胀 的
生物
材料科学
自愈水凝胶
纳米技术
变形(气象学)
毛细管作用
粘弹性
执行机构
复合材料
计算机科学
高分子化学
人工智能
考古
历史
自然(考古学)
生物
植物
作者
Yukun Jian,Baoyi Wu,Xuxu Yang,Peng Yu,Dachuan Zhang,Yang Yang,Huabiao Qiu,Huanhuan Lu,Jiawei Zhang,Tao Chen
出处
期刊:Supramolecular materials
[Elsevier]
日期:2022-12-01
卷期号:1: 100002-100002
被引量:17
标识
DOI:10.1016/j.supmat.2021.100002
摘要
With the ability to deform in response to specific stimuli, polymeric hydrogel actuators are important bionic materials. However, because shape deformation is derived from the diffusion of water molecules, the response rate of hydrogel actuators is usually slow, which severely limits their potential applications. In this work, a thermo-responsive PNIPAm hydrogel sponge is developed, and the hydrogel sponge shows ultrafast de-swelling/swelling capacity (equilibrium time 7 s) and large deformation degree (40%) due to the assistance of capillary force. Hydrogel sponge actuator with rapid response performance is further constructed, and the hydrogel sponge actuator could be used to capture moving objects and living creatures. Moreover, light-controlled directional movement can be achieved by incorporating photothermal functional components into the hydrogel sponge actuator. This work would promote the application of hydrogel actuators in soft robots.
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