Antifreezing and Stretchable Organohydrogels as Soft Actuators.
作者： Yukun Jian , Baoyi Wu , Xiaoxia Le , Yun Liang , Yuchong Zhang
关键词: Actuator 、 Composite material 、 Layer (electronics) 、 Materials science 、 Bilayer 、 Robotic arm 、 Solvent 、 Polyacrylamide 、 Ionic compound 、 Polyacrylic acid
摘要: Inspired by the freezing tolerance performances found in living creatures, an effect approach is presented to develop novel antifreezing polymeric organohydrogel actuators. Through construction of a bilayer hydrogel including nonresponsive polyacrylamide (PAAm) layer and pH-responsive polyacrylic acid (PAA) presence mixed solvent water glycerol, actuators that could produce various shape deformations at subzero temperatures have been achieved, actuating speed be tuned adjusting temperature ratio between glycerol water. Moreover, series application demonstrations weightlifting robot, artificial valve, robotic arm displayed. In addition, introducing ionic compound KI into glycerol-based organogel, flexible conductors perform stable sensing performance over wide range from -30°C 60°C developed.
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