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Silicone-based highly stretchable multifunctional fiber pumps.

Ryo Kanno^1,2, Keita Shimizu¹, Kazuya Murakami¹

¹Shintake Research Group, Department of Mechanical and Intelligent Systems Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585, Japan.

Scientific Reports

|February 26, 2024

Summary

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This summary is machine-generated.

Researchers developed highly stretchable fiber electrohydrodynamic (EHD) pumps using a simple dipping method. These advanced EHD pumps offer high performance and dual functionality as sensors for soft robotics and wearable devices.

Area of Science:

Materials Science and Engineering
Soft Robotics and Wearable Technology

Background:

Electrohydrodynamic (EHD) soft pumps are crucial for fluid-driven systems like soft robots and wearable electronics.
Existing fiber EHD pumps lack sufficient stretchability and require complex fabrication, limiting their applications.
There is a need for advanced EHD pumps with enhanced stretchability and simplified manufacturing processes.

Purpose of the Study:

To present a simplified method for fabricating highly stretchable and multifunctional fiber EHD pumps.
To evaluate the performance, durability, and sensing capabilities of the novel EHD pumps.

Main Methods:

Utilized highly compliant silicone elastomers for the fiber structure.
Employed a simple dipping fabrication process to create the fiber EHD pumps.

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Characterized pump performance (stretchability, flow rate, pressure) and durability under cyclic strain and bending.

Main Results:

Achieved highly stretchable pumps (up to 40% strain) with competitive flow rates (167.4 mL/min) and pressure (4.1 kPa).
Demonstrated stable performance over 2000 strain cycles and 180° bending.
Showcased dual functionality as sensors for fluid identification and strain detection (up to 30% strain) with high repeatability.

Conclusions:

The simplified fabrication method yields superior, highly stretchable fiber EHD pumps suitable for advanced applications.
These pumps offer robust performance and unique sensing capabilities, expanding their utility in soft electronics and robotics.
The developed technology represents a significant advancement over existing EHD fiber pump designs.