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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Pedersen, Henrik Chresten
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (7/7 displayed)
- 2022A Tunable Hyperspectral Imager for Detection and Quantification of Marine Biofouling on Coated Surfacescitations
- 2016Replication of optical microlens arrays using photoresist coated moldscitations
- 2016Replication of nanopits and nanopillars by roll-to-roll extrusion coating using a structured cooling rollcitations
- 2010Optical detections from worn and unworn titanium compound surfacescitations
- 2010Wear monitoring of protective nitride coatings using image processingcitations
- 2009Dynamic study of a sliding interface wear process of TiAlN and CrN multi-layers by X-ray absorption
- 2009Image processing of worn and unworn protective coatings of TiAlN and TiN on 100Cr6 steel
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article
Replication of nanopits and nanopillars by roll-to-roll extrusion coating using a structured cooling roll
Abstract
Thispaperinvestigatesanovel,veryhighthroughput,roll-to-roll(R2R)processfor nanostructuring of polymer foils, called R2R extrusion coating. It has the potential to accelerate the integration of nanostructured materials in consumer products for a variety of applications, including optical, technical, and functional surfaces and devices. In roll-to-roll extrusion coating, a molten polymer film is extruded through a flat die forming a melt curtain, and then laminated onto a carrier foil. The lamination occurs as the melt curtain is pressed between a cooling roller and a counter roller. By mounting a nanostructured metal shim on the surface of the cooling roller, the relief structure from the shim can be replicated onto a thermoplastic foil. Among the benefits of<i> P</i><sub> oil</sub>, the process are availability of a wide range of commercial extruders, off-the-shelf extrusion grade polymers, functional additives, polymeric materials with good diffusion barrier properties, and the overall maturity of the technology [S. H. Ahn and L. J. Guo, Adv. Mater. 20, 2044 (2008)]. In this article, the authors demonstrate replication of nanopits and nanopillars with diameters between 40 and 120 nm and depth/height of 100 nm. The best replication was achieved in polypropylene, by running at high roller line-speed of 60 m/min, and high cooling roller temperature of 70°C. Replication in other common polymers like polyethylene and polystyrene was not possible for the parameter range used for the investigation.