한국가시화정보학회지 (Journal of the Korean Society of Visualization)

  • 제22권1호
  • /
  • Pages.61-67
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  • 2024
  • /
  • 1598-8430(pISSN)
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  • 2093-808X(eISSN)
한국가시화정보학회 (The Korean Society of Visualization)
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상용 Gentoo 폴리머가 경화된 고체주입표면에서 물방울 거동

Water droplet behavior on a solid-infused surface cured with commercial Gentoo polymer

  • Hyeongwon Kim (Department of Mechanical Information Engineering, Seoul National University of Science and Technology) ;
  • Jeong-Hyun Kim (Department of Mechanical System Design Engineering, Seoul National University of Science and Technology)
  • 투고 : 2024.02.21
  • 심사 : 2024.03.16
  • 발행 : 2024.03.31
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초록

In this study, the behavior of water droplets on a solid-infused surface was evaluated by quantifying a water droplet's contact angle, sliding angle, and terminal velocity. The contact angle hysteresis and sliding angle of water on the solid-infused surface were measured to be lower than those of the hydrophobic PTFE surface. It led to the enhancement of the initiation of the water droplet's movement. When the capillary number was lower than Ca < 0.004, the terminal velocity of the water droplet on the solid-infused surface was higher than the PTFE surface due to the low contact line resistance. However, the transition of the droplet morphology from a hemispherical shape to a streamlined teardrop shape beyond Ca > 0.004 lost the effect of reducing frictional resistance on the solid-infused surface.

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과제정보

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임 (No. 2020R1C1C1005588).

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