Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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The Effect of Dimensions of Micro-post on Oleophobic Property

마이크로 기둥 구조의 크기가 소유성 특성 발현에 미치는 영향

  • Kim, Nam-Kyung (Department of Automotive Engineering, Gyeongnam National University of Science and Technology) ;
  • Kim, Hae-Ji (Department of Automotive Engineering, Gyeongnam National University of Science and Technology)
  • 김남경 (경남과학기술대학교 자동차공학과) ;
  • 김해지 (경남과학기술대학교 자동차공학과)
  • Received : 2018.08.02
  • Accepted : 2018.08.16
  • Published : 2018.10.31
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Abstract

The oleophobic property of surfaces modified with micro-post structures are investigated for a range of micro-post diameter ($11-23{\mu}m$) and pitch ($20-40{\mu}m$). The contact angle of an oil droplet on surfaces with various micro-post dimensions was calculated using the Cassie-Baxter model and did not show a good agreement with the measured contact angle. From measurement, the micro-post with diameter of $23{\mu}m$ and pitch of $32{\mu}m$ was found to have the highest contact angle ($134.3^{\circ}$).

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References

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