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- Jeong, Hoon Eui
- Multiscale Biomimetics and Manufacturing Lab.
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Fabrication and analysis of enforced dry adhesives with core-shell micropillars
- Author(s)
- Bae, Won-Gyu, Kwak, Moon Kyu, Jeong, Hoon Eui, Pang, Changhyun, Jeong, Hakgeun, Suh, Kahp-Yang
- Issued Date
- 2013-02
- Citation
- SOFT MATTER, v.9, no.5, pp.1422 - 1427
- Abstract
- We present a simple method for fabricating robust dry adhesives by coating a soft polydimethyl siloxane (PDMS) thin layer on rigid backbone micropillars of polyurethane acrylate (PUA). These core-shell type micropillars demonstrated enhanced durability both in normal and shear adhesion over more than 100 cycles of attachment and detachment. Relatively strong normal (∼11.4 N cm -2) and shear (∼15.3 N cm-2) adhesion forces were observed, which were similar to or even larger than those of homogeneous PDMS micropillars. A simple theoretical model based on beam deflection theory was used to explain the experimental results.
- Publisher
- ROYAL SOC CHEMISTRY
- ISSN
- 1744-683X
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