Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
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Silicone Injection Mold & Molding Technology for Super-hydrophobic Curved Surface

초발수 곡면표면 실리콘 사출금형성형기술

  • 이성희 (한국생산기술연구원 금형기술센터) ;
  • 강정진 (한국생산기술연구원 미래융합연구그룹) ;
  • 이종원 (한국생산기술연구원 금형기술센터) ;
  • 홍석관 (한국생산기술연구원 미래융합연구그룹) ;
  • 고종수 (부산대학교 기계공학부) ;
  • 이제훈 (한국기계연구원 광응용기계연구실) ;
  • 노지환 (한국기계연구원 광응용기계연구실)
  • Received : 2011.11.14
  • Accepted : 2011.11.24
  • Published : 2012.01.01
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Abstract

In this study, silicone injection molding technology with curved thermoplastic insert was developed to produce super-hydrophobic surface. Thermoplastic insert part and injection mold design of base plastic cover were performed to produce cost effective hydrophobic surface part. An optimization process of part thickness for thermoplastic insert part was performed with transient thermal analysis under silicone over-molding process condition. Structural thermal analysis of silicone injection mold was also performed to obtain uniform temperature condition on the surface of micro-patterned mold core. Super-hydrophobic surface for the silicone injection molded part with thermoplastic insert could be verified from the measurement of contact angle. It was shown that the averaged contact angle was over $140^{\circ}$.

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References

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