Fabrication and Adhesive Force Analysis of Biomimetic Gecko Foot-Hair Array

Author

Shan, Jianhua ; Mei, Tao ; Ni, Lin ; Chen, Shirong ; Chu, Jiaru

Author_Institution

Univ. of Sci. & Technol. of China, Hefei

fYear

2006

fDate

18-21 Jan. 2006

Firstpage

1546

Lastpage

1549

Abstract

Gecko has elaborate adhesive structure which allows it to move along vertical walls and ceilings quickly. There is strong evidence that the adhesion ability is due to van der Waals forces. Synthetic dry adhesive hairs inspired by gecko foot-hairs have been microfabricated by several groups. To obtain re-attachable dry adhesive hairs with mass production potential, ICP technique is employed to fabricate silicon molds, and flexible hair arrays in large area is fabricated by peel-off method of polydimethylsiloxane (PDMS). Experimental results demonstrate that the adhesive forces are 2.06N/cm² for 2 mum hairs, 1.09N/cm² for 5 mum hairs and 0.68N/cm² for bald polymer

Keywords

adhesion; adhesive bonding; adhesives; biomimetics; plasma materials processing; polymers; silicon; ICP technique; PDMS; Si; adhesive force analysis; biomimetic gecko foot-hair array; dry adhesive hairs; inductively coupled plasma; microfabrication; peel-off method; polydimethylsiloxane; silicon molds; van der Waals forces; Adhesives; Biomimetics; Fabrication; Foot; Hair; Rough surfaces; Silicon; Stress; Surface roughness; Systems engineering and theory; biomimetic adhesive; gecko adhesion; high aspect ratio structures;

fLanguage

English

Publisher

ieee

Conference_Titel

Nano/Micro Engineered and Molecular Systems, 2006. NEMS '06. 1st IEEE International Conference on

Conference_Location

Zhuhai

Print_ISBN

1-4244-0139-9

Electronic_ISBN

1-4244-0140-2

Type

conf

DOI

10.1109/NEMS.2006.334844

Filename

4135238