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Programmable Chemical Reactions Enable Ultrastrong Soft Pneumatic Actuation
Yang Qu1, Wei Tang1,2, Yiding Zhong1
1State Key Laboratory of Fluid Power and Mechatronic Systems, School of Mechanical Engineering, Zhejiang University, Hangzhou, 310058, China.
Advanced Materials (Deerfield Beach, Fla.)
|July 12, 2024
Summary
Researchers developed programmable chemical reactions for soft pneumatic actuation, generating high-pressure gases up to 6 MPa. This breakthrough enables powerful, portable, and controllable soft robots and wearable devices.
Area of Science:
- Materials Science
- Robotics
- Chemical Engineering
Background:
- Soft pneumatic actuation is crucial for wearable devices, soft robots, and surgical machines.
- A significant challenge lies in generating high-pressure gases in a soft, controllable, and portable manner.
Purpose of the Study:
- To report a novel class of programmable chemical reactions for controlled gas generation.
- To achieve high-pressure output for soft pneumatic actuation applications.
Main Methods:
- Utilizing thermoelectric materials with programmable electric current to control chemical reactions.
- Employing preprogrammed reversible chemical reactants for gas generation.
- Developing miniature, self-contained gas sources (20-100 g).
Main Results:
- Achieved controllable gas generation with a maximum pressure output of nearly 6 MPa.
- Demonstrated unprecedented pressures of nearly 6 MPa and forces of approximately 18 kN.
- Showcased applications including breaking concrete blocks, lifting a car, and use in artificial muscles and assistive wearables.
Conclusions:
- Established a new paradigm for ultrastrong soft pneumatic actuation.
- Highlighted the potential of programmable chemical reactions for advanced soft robotics and wearable technology.
- Enabled controllable, portable, and silent high-pressure gas generation.
