Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Modification of the curing characteristics of the photocurable resin FA1260T for 3D microfabrication using microstereolithography

삼차원 마이크로광조형 기술 응용을 위한 광경화 수지 EA1260T의 경화특성 조절에 대한 연구

  • 김성훈 (광주과학기술원 대학원 기전공학과) ;
  • 정대준 (한국항공우주연구원 위성응용그룹) ;
  • 주재영 (광주과학기술원 대학원 기전공학과) ;
  • 정성호 (광주과학기술원 기전공학과)
  • Published : 2006.06.01
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Abstract

The curing characteristics of a photocurable resin are critical factors that often decide the ultimate resolution and structural sharpness of a final product fabricated by microstereolithography$(\mu-STL)$. In this study, we investigated the curing characteristics of the FA1260T photopolymer under a visible laser light of 42nm wavelength. Modification of the curing property of the FA1260T is attempted to reduce the cure depth $(D_c)$ by adding a radical quencher to the resin. Also, an organic solvent was used to reduce the resin viscosity for an improvement of the flatness of the liquid surface during layer-by-layer curing. As a result, the minimum $D_c$ has been reduced over a factor of 3 with no abrupt increase. Samples of three dimensional microstructures fabricated using the modified FA1260T are presented.

Keywords

References

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