Journal
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
Volume 99, Issue 4, Pages 691-695Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s00339-010-5719-8
Keywords
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Funding
- TEKES, the Finnish Agency for Technology and Innovation
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A new two-step method, facilitating the rapid generation of super-hydrophobic surface structures via parallel laser processing followed by a replica generation by injection molding is reported. A self-made fused silica-based diffractive optical element (DOE) is applied to distribute the laser energy into a 25x25 dot matrix. This DOE is used as a transmission mask for surface ablation of metal molds, applying short-pulse UV laser pulses. In a subsequent process step, replicas of the processed stamp are produced by variothermal injection molding, enabling the mass production of the surface pattern on plastics parts. The resulting topography facilitates a super-hydrophobic behavior of the fabricated components.
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