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

Hoon Eui Jeong | Zendy; Jin-Kwan Lee | Zendy; Moon Kyu Kwak | Zendy; Sang Heup Moon | Zendy; Kahp Y. Suh | Zendy

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

Author(s) -

Hoon Eui Jeong,

Jin-Kwan Lee,

Moon Kyu Kwak,

Sang Heup Moon,

Kahp Y. Suh

Publication year - 2010

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.3298554

Subject(s) - materials science , adhesion , hysteresis , composite material , polymer , stiffness , contact angle , polyurethane , acrylate , adhesive , shear (geology) , monomer , physics , layer (electronics) , quantum mechanics

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.open211

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