Enhanced friction of elastomer microfiber adhesives with spatulate tips

被引:70
作者
Kim, Seok [1 ]
Aksak, Burak [1 ]
Sitti, Metin [1 ]
机构
[1] Carnegie Mellon Univ, Dept Mech Engn, Pittsburgh, PA 15213 USA
关键词
D O I
10.1063/1.2820755
中图分类号
O59 [应用物理学];
学科分类号
摘要
Previous studies have demonstrated that gecko foot-hair inspired elastomer microfibers with spatulate tips have significant adhesion enhancement compared to the flat elastomer surface. In this study, we report the friction enhancement of these highly adhesive fibers and analyze the relation between adhesion and friction of elastomer microfiber arrays with spatulate tips. Fabricated polyurethane fiber arrays with spatulate tips demonstrate macroscale static friction pressures up to 41 N/cm(2) for a preload pressure of 1.5 N/cm(2) on a 6 mm diameter smooth glass hemisphere. (C) 2007 American Institute of Physics.
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页数:3
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