Journal of Mechanical Science and Technology

, Volume 21, Issue 4, pp 624–629 | Cite as

A biomimetic approach for effective reduction in micro-scale friction by direct replication of topography of natural water-repellent surfaces

  • R. Arvind Singh
  • Hong Joon Kim
  • Jinseok Kim
  • Sungwook Yang
  • Hoon Eui Jeong
  • Kahp Y. Suh
  • Eui-Sung Yoon
Article

Abstract

In this paper, we report on the replication of surface topographies of natural leaves of water-repellent plants of Lotus and Colocasia onto thin polymeric films using a capillarity-directed soft lithographic technique. The replication was carried out on poly(methyl methacrylate) (PMMA) film spin coated on silicon wafer using poly(dimethyl siloxane) (PDMS) molds. The friction properties of the replicated surfaces were investigated at micro-scale in comparison with those of PMMA thin film and silicon wafer. The replicated surfaces exhibited superior friction property when compared to those of PMMA thin film and silicon wafer. The superior friction behaviour of the replicated surfaces was attributed to the reduced real area of contact projected by them.

Keywords

Lithography Biomimetic Polymer Micro Friction Tribology 

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Copyright information

© The Korean Society of Mechanical Engineers (KSME) 2007

Authors and Affiliations

  • R. Arvind Singh
    • 1
  • Hong Joon Kim
    • 1
  • Jinseok Kim
    • 1
  • Sungwook Yang
    • 1
  • Hoon Eui Jeong
    • 2
  • Kahp Y. Suh
    • 2
  • Eui-Sung Yoon
    • 1
  1. 1.Nanobio Research CenterKorea Institute of Science and TechnologySeoulKorea
  2. 2.School of Mechanical and Aerospace EngineeringSeoul National UniversitySeoulKorea

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