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Effects of Metal Coatings on Adhesive Characteristics of Gecko-like Micro Structures
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 Title & Authors
Effects of Metal Coatings on Adhesive Characteristics of Gecko-like Micro Structures
Kim, Gyu Hye; An, Tea Chang; Hwang, Hui Yun;
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 Abstract
Recently, there have been several studies on the inspiration and application of optimized natural structures. One study introduced a new adhesion method that was inspired by the feet of geckos because of their superior features such as high adhesion strength, ease-of-removal, and they are environmentally friendly. Various micro- or nano-structures were fabricated and tested for gecko-like dry adhesives, but gecko-like dry adhesives that were developed became easily worn from frequent use. In this study, we propose a metal-coating method to improve the durability of gecko-like dry adhesives. We evaluate the initial adhesion strength and durability by performing repeated adhesion tests on a glass plate. The initial adhesive strength of gold-coated micro-structures was 60% of that for non-coated ones. However, the adhesive strength of gold-coated micro-structures was kept as 58% of their initial adhesion strength, while that of non-coated ones was only 40%.
 Keywords
Gecko-Like Microstructures;Metal Coating;Adhesion;
 Language
Korean
 Cited by
 References
1.
Moon, M.-W., Cha, T.-G., Lee, K.-R., Vaziri, A. and Kim, H.-Y., 2009, "Adhesion and Friction Behaviors of the Angled Micro-pillars"The Korean Society of Mechanical Engineers,Vol. 2009, No. 5, pp. 268-269.

2.
Cho, Y.-S., Jung, D.-H., Han, H. and Kim, W.-D., 2007, "Fabrication of a Novel Dry Adhesive Structure with Reduced Effective Stiffness." The Korean Society of Mechanical Engineers, Vol. 2007, No. 5, pp. 1900-1904.