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Robust scalable reversible strong adhesion by gecko-inspired composite design.
- Source :
- Friction (2223-7704); Aug2022, Vol. 10 Issue 8, p1192-1207, 16p
- Publication Year :
- 2022
-
Abstract
- Bio-inspired reversible adhesion has significant potential in many fields requiring flexible grasping and manipulation, such as precision manufacturing, flexible electronics, and intelligent robotics. Despite extensive efforts for adhesive synthesis with a high adhesion strength at the interface, an effective strategy to actively tune the adhesion capacity between a strong attachment and an easy detachment spanning a wide range of scales has been lagged. Herein, we report a novel soft-hard-soft sandwiched composite design to achieve a stable, repeatable, and reversible strong adhesion with an easily scalable performance for a large area ranging from ∼1.5 to 150 cm<superscript>2</superscript> and a high load ranging from ∼20 to 700 N. Theoretical studies indicate that this design can enhance the uniform loading for attachment by restraining the lateral shrinkage in the natural state, while facilitate a flexible peeling for detachment by causing stress concentration in the bending state, yielding an adhesion switching ratio of ∼54 and a switching time of less than ∼0.2 s. This design is further integrated into versatile grippers, climbing robots, and human climbing grippers, demonstrating its robust scalability for a reversible strong adhesion. This biomimetic design bridges microscopic interfacial interactions with macroscopic controllable applications, providing a universal and feasible paradigm for adhesion design and control. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22237704
- Volume :
- 10
- Issue :
- 8
- Database :
- Complementary Index
- Journal :
- Friction (2223-7704)
- Publication Type :
- Academic Journal
- Accession number :
- 156579648
- Full Text :
- https://doi.org/10.1007/s40544-021-0522-4