• Title/Summary/Keyword: Curved Thermoplastic Insert

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Silicone Injection Mold & Molding Technology for Super-hydrophobic Curved Surface (초발수 곡면표면 실리콘 사출금형성형기술)

  • Lee, Sung-Hee;Kang, Jeong-Jin;Lee, Jong-Won;Hong, Seok-Kwan;Ko, Jong-Soo;Lee, Jae-Hoon;Noh, Ji-Whan
    • Journal of the Korean Society for Precision Engineering
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    • v.29 no.1
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    • pp.13-18
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    • 2012
  • 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 $140^{\circ}$.