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Jeong, Hoon Eui
Multiscale Biomimetics and Manufacturing Lab.
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A micropatterned elastomeric surface with enhanced frictional properties under wet conditions and its application

Author(s)
Ko, H.Seong, M.Jeong, Hoon Eui
Issued Date
2017-12
DOI
10.1039/c7sm01493g
URI
https://scholarworks.unist.ac.kr/handle/201301/23066
Fulltext
http://pubs.rsc.org/en/Content/ArticleLanding/2017/SM/C7SM01493G#!divAbstract
Citation
SOFT MATTER, v.13, no.45, pp.8419 - 8425
Abstract
Engineered surfaces that have high friction under wet or lubricated conditions are important in many practical applications. However, it is not easy to achieve stable high friction under wet conditions because a layer of fluid prevents direct solid-solid contact. Here, we report a micropatterned elastomeric surface with superior wet friction. The surface has unique arch-shaped microstructures arrayed in a circle on the surface to provide high friction on wet or flooded surfaces. The arch-shaped micropatterned surface exhibits remarkably enhanced and stable friction under wet conditions, surpassing even the performance of the hexagonal patterns of tree frogs, owing to the large contact surface and the optimal shape of drainage channels. Robotic substrate transportation systems equipped with the micropatterned surfaces can manipulate a delicate wet substrate without any sliding in a highly stable and reproducible manner, demonstrating the superior frictional capabilities of the surface under wet conditions.
Publisher
ROYAL SOC CHEMISTRY
ISSN
1744-683X
Keyword
ADHESIONSYSTEMSFORCEWATER

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