Abstract
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 25×25 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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Open Access This is an open access article distributed under the terms of the Creative Commons Attribution Noncommercial License ( https://creativecommons.org/licenses/by-nc/2.0 ), which permits any noncommercial use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.
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Bekesi, J., Kaakkunen, J.J.J., Michaeli, W. et al. Fast fabrication of super-hydrophobic surfaces on polypropylene by replication of short-pulse laser structured molds. Appl. Phys. A 99, 691–695 (2010). https://doi.org/10.1007/s00339-010-5719-8
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DOI: https://doi.org/10.1007/s00339-010-5719-8