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http://dx.doi.org/10.3795/KSME-A.2015.39.11.1099

Effects of Metal Coatings on Adhesive Characteristics of Gecko-like Micro Structures  

Kim, Gyu Hye (Dept. of Mechanical Design Engineering, Andong Nat'l Univ.)
An, Tea Chang (Dept. of Mechanical Design Engineering, Andong Nat'l Univ.)
Hwang, Hui Yun (Dept. of Mechanical Design Engineering, Andong Nat'l Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.39, no.11, 2015 , pp. 1099-1103 More about this Journal
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;
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  • Reference
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