Low modulus ultra-ductility ionic skin by highly entangled PAM-co-UPyMA hydrogel

Xu, Jiani; Cai, Tingwei; Hu, Hanchang; Meng, Chen; Dong, Xia; Zhao, Qiangqiang; He, Jinxin

doi:10.1016/j.cej.2024.150671

Chemical Engineering Journal

2024

DOI: 10.1016/j.cej.2024.150671

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Low modulus ultra-ductility ionic skin by highly entangled PAM-co-UPyMA hydrogel

Jiani Xu,

Tingwei Cai,

Hanchang Hu

et al.

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Temperature‐Responsive Anisotropic Bilayer Hydrogel Actuators with Adaptive Shape Transformation for Enhanced Actuation and Smart Sensor Applications

Kalulu,

Mwanza,

Munyati

et al. 2024

Macro Chemistry & Physics

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Anisotropic bilayer hydrogel actuators are high‐performance materials engineered to exhibit unique and programmable mechanical properties, including varying stiffness and directional bending capabilities, by integrating two hydrogel layers with distinct responses to stimuli. However, programming and constructing these bilayer hydrogels remains challenging due to their lack of mechanical robustness, rapid responsiveness, and dual‐actuation capabilities, which hinder their practical applications and further development. Hence, developing a double‐actuating bilayer hydrogel with a temperature‐responsive and auxiliary layer could address these challenges. Herein, an anisotropic hydrogel actuator is developed using a simple and economical casting method, in which a unique multiasymmetric bilayer structure locked by an interfacial is fabricated. The as‐prepared hydrogels demonstrate exceptional temperature‐responsive bending abilities, achieving a 360 °C angle in just 8 s, and exhibit adaptive, complex shape transformation capabilities tailored to specific needs (e.g., two dimensional (2D) letters, leaves, flower, and butterfly hydrogel). Furthermore, the hydrogels possess excellent shape memory, mechanical strength, and conductivity. Additionally, gripper and humidity alarm prototypes made from the hydrogel are also successfully developed, illustrating that this approach opens new avenues for designing and producing smart hydrogels with practical applications in sensors, smart humidity alarms, and on‐demand smart grippers and actuators.

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Temperature‐Responsive Anisotropic Bilayer Hydrogel Actuators with Adaptive Shape Transformation for Enhanced Actuation and Smart Sensor Applications

Kalulu,

Mwanza,

Munyati

et al. 2024

Macro Chemistry & Physics

View full text Add to dashboard Cite

show abstract

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Low modulus ultra-ductility ionic skin by highly entangled PAM-co-UPyMA hydrogel

Cited by 1 publication

References 46 publications

Temperature‐Responsive Anisotropic Bilayer Hydrogel Actuators with Adaptive Shape Transformation for Enhanced Actuation and Smart Sensor Applications

Temperature‐Responsive Anisotropic Bilayer Hydrogel Actuators with Adaptive Shape Transformation for Enhanced Actuation and Smart Sensor Applications

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