Effect of leaning angle of gecko-inspired slanted polymer nanohairs on dry adhesion

Hoon Eui Jeong; Jin Kwan Lee; Moon Kyu Kwak; Sang Heup Moon; Kahp Yang Suh

doi:10.1063/1.3298554

Effect of leaning angle of gecko-inspired slanted polymer nanohairs on dry adhesion

Hoon Eui Jeong, Jin Kwan Lee, Moon Kyu Kwak, Sang Heup Moon, Kahp Yang Suh

School of Mechanical Engineering

Seoul National University

Research output: Contribution to journal › Article › peer-review

53 Scopus citations

Abstract

We present analysis of adhesion properties of angled polymer nanohairs with a wide range of leaning angles from 0° to 45° and ultraviolet (UV)-curable polyurethane acrylate (PUA) materials of two different elastic moduli (19.8 and 320 MPa). It is demonstrated that shear adhesion and adhesion hysteresis can be greatly enhanced by increasing the leaning angle of nanohairs both for soft and hard materials due to increased contact area and reduced structural stiffness.

Original language	English
Article number	043704
Journal	Applied Physics Letters
Volume	96
Issue number	4
DOIs	https://doi.org/10.1063/1.3298554
State	Published - 2010

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abstract = "We present analysis of adhesion properties of angled polymer nanohairs with a wide range of leaning angles from 0° to 45° and ultraviolet (UV)-curable polyurethane acrylate (PUA) materials of two different elastic moduli (19.8 and 320 MPa). It is demonstrated that shear adhesion and adhesion hysteresis can be greatly enhanced by increasing the leaning angle of nanohairs both for soft and hard materials due to increased contact area and reduced structural stiffness.",

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AU - Suh, Kahp Yang

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AB - We present analysis of adhesion properties of angled polymer nanohairs with a wide range of leaning angles from 0° to 45° and ultraviolet (UV)-curable polyurethane acrylate (PUA) materials of two different elastic moduli (19.8 and 320 MPa). It is demonstrated that shear adhesion and adhesion hysteresis can be greatly enhanced by increasing the leaning angle of nanohairs both for soft and hard materials due to increased contact area and reduced structural stiffness.

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Effect of leaning angle of gecko-inspired slanted polymer nanohairs on dry adhesion

Abstract

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