复合数
原位
执行机构
聚合物
聚合
高分子化学
材料科学
原位聚合
复合材料
化学工程
各向异性
高分子科学
化学
计算机科学
有机化学
光学
物理
工程类
人工智能
作者
Lian Chen,Xianshuo Wei,Feng Wang,Shaoju Jian,Weisen Yang,Chunxin Ma,Gaigai Duan,Shaohua Jiang
标识
DOI:10.1016/j.cclet.2021.09.075
摘要
Stimuli-responsive hydrogels hold an irreplaceable statue in intelligent actuation materials because of their reversible stretchability and excellent biocompatibility. However, the poor mechanical performance and complicated fabrication process of anisotropic structures severely limit their further applications. Herein, we report a high-strength thermoresponsive wood-PNIPAM composite hydrogel actuator with complex deformations, through a simple in-situ polymerization. In this composite hydrogel actuator, the anisotropic wood and the thermoresponsive PNIPAM hydrogel hydroel can work together to provide bending and even other complex deformations. Owing to strong interfacial interaction, this actuator perfectly realized the combination of good mechanical properties (∼1.1 MPa) and fast actuation speed (∼0.9 s). In addition, by adjusting the orientation direction of wood, this actuator can achieve various complex deformations. Such composite hydrogel actuator could be a good candidate for intelligent applications, such as intelligent actuators, smart valves, manipulators and even soft robots. The wood-PNIPAM composite hydrogel actuator fabricated through in-situ polymerization possess the characteristics of high mechanical strength, excellent programmable performance and fast response speed.
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