• Title/Summary/Keyword: high aspect ratio microhair

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Fabrication of High-Aspect-Ratio Microscale Polymer Hairs Having Surface Wrinkles (고 세장비 표면주름을 가진 마이크로 폴리머 헤어 제작)

  • Park, Sang-Hu;Kim, Seong-Jin;Park, Hee-Jin;Lee, Joo-Chul;Shin, Bo-Sung
    • Polymer(Korea)
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    • v.37 no.1
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    • pp.1-4
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    • 2013
  • We proposed a new process to fabricate a high-aspect-ratio microhair having surface wrinkles using the contact-and-tension of a microstamp. Through this work, we observed that regular surface wrinkles were generated on the hair with a diameter of around $20{\mu}m$ due to the uni-directional compressive stress during the photocuring process by ultraviolet light. To do this, we conducted an experimental system setup for contact-and-tension process. From the preliminary test results, we believed that the proposed method can be applied to make a long polymer hair having surface wrinkles for special applications to biomimetics, and some research fields related on surface area such as heat transfer and catalyst enhancement.