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

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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. © 2010 American Institute of Physics.
Original languageEnglish (US)
Pages (from-to)043704
JournalApplied Physics Letters
Issue number4
StatePublished - Feb 1 2010
Externally publishedYes

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