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Roll-to-Roll Manufacturing of Micropatterned Adhesives by Template Compression

  • For the next generation of handling systems, reversible adhesion enabled by micropatterned dry adhesives exhibits high potential. The versatility of polymeric micropatterns in handling objects made from various materials has been demonstrated by several groups. However, specimens reported in most studies have been restricted to the laboratory scale. Upscaling the size and quantity of micropatterned adhesives is the next step to enable successful technology transfer. Towards this aim, we introduce a continuous roll-to-roll replication process for fabrication of high-performance, mushroom-shaped micropatterned dry adhesives. The micropatterns were made from UV-curable polyurethane acrylates. To ensure the integrity of the complex structure during the fabrication process, flexible templates were used. The compression between the template and the wet prepolymer coating was investigated to optimize replication results without structural failures, and hence, to improve adhesion. As a result, we obtained micropatterned adhesive tapes, 10 cm in width and several meters in length, with adhesion strength about 250 kPa to glass, suitable for a wide range of applications

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Document Type:Article
Author:Dan Yu, Dirk Beckelmann, Michael Opsölder, Bruno Schäfer, Karsten MohORCiD, René HenselORCiD, Peter William de OliveiraORCiD, Eduard ArztORCiD
Parent Title (English):Materials
First Page:97
Year of first Publication:2019
Release Date:2022/11/18
Tag:biomimetics; dry adhesive; microstructure; roll-to-roll fabrication
Impact:03.057 (2019)
Funding Information:European Union’s Seventh Framework Programme (FP/2007-2013)/ERC Grant Agreement n. 340929; Leibniz Competition Grant n. 493.
Groups:Funktionelle Mikrostrukturen
Optische Materialien
Open Access:Open Access
Signature:INM 2019/016
Licence (German):License LogoCreative Commons - CC BY - Namensnennung 4.0 International