胶粘剂
材料科学
振动
复合材料
干摩擦
图层(电子)
纳米技术
声学
物理
作者
Duorui Wang,Hongmiao Tian,Haoran Liu,Jinyu Zhang,Hong Hu,Xiangming Li,Chunhui Wang,Xiaoliang Chen,Jinyou Shao
标识
DOI:10.1002/advs.202302512
摘要
For dry adhesive-based operation, highly adaptable and stable manipulation is important but also challenging, especially for irregular objects with complex surface (such as abrupt profile and acute projection) under vibration-inducing environments. Here, a multi-scale adhesive structure, with mechanically isolated energy-absorbing backing, based on the synergistic action of microscale contact end (seta), mesoscale supporting layer (lamella), and macroscopic backing (muscle tissues) of gecko's sole, is proposed. Top layer of mushroom-like micro tips provides dry adhesion via mimicking gecko's seta, and bottom layer of physical cuts and porous feature achieves the interfacial mechanical decoupling and crack inhibition via mimicking the non-continuous distributing of lamella and compliance of muscle. The proposed dry adhesive exhibits excellent adaptable adhesion to various objects with curved or irregular surfaces, even for that with abrupt contours, as well as an amazing stable anti-vibration ability, opening a new avenue for the development of dry adhesive-based device or system.
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