Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/182894
Title: Micro- and Nanotexturization of Liquid Silicone Rubber Surfaces by Injection Molding Using Hybrid Polymer Inlays
Author: Lozano Hernandez, Nekane
Pérez Llanos, Germán
Saez Comet, Carlos
Valle, Luis J. del
Puiggali, Jordi
Fontdecaba, Enric
Director/Tutor: Química de superfícies
Keywords: Compostos polimèrics
Química de superfícies
Polymeric composites
Surface chemistry
Issue Date: 8-Dec-2021
Abstract: Micro- and nanotexturization of surfaces can give to the parts different advanced functionalities, such as superhydrophobicity, self-cleaning, or antibacterial capabilities. These advanced properties in combination with the biocompatibility of Liquid Silicone Rubber are an interesting approach for obtaining high-performance medical devices. The industrial production of surface textures in polymeric materials is through the replication technique, and the best option to attain a high production rate is injection molding. Moreover, its low viscosity during processing can provide an accurate replication capacity by the easy filling by capillarity of the microtextures. An innovative replicating technique for Liquid Silicone Rubber is presented by studying the replication of different shaped textures within a diameter range of between 2 and 50 mu m. The copying process consists in the overmolding of a textured polymeric inlay obtained by nanoimprint lithography. At the end of the process, a textured part is obtained, while the imprinted film remains in the mold. The injection molding parameters are optimized to increase the replication accuracy, and their effect on texture replicability is analyzed and discussed. Finally, it is shown that the textured surfaces improve their wettability behavior, which is a necessary and important characteristic in the development of biomedical devices.
Note: Reproducció del document publicat a: https://doi.org/10.1002/mame.202100741
It is part of: Macromolecular Materials And Engineering, 2021
URI: http://hdl.handle.net/2445/182894
Related resource: https://doi.org/10.1002/mame.202100741
ISSN: 1439-2054
Appears in Collections:Articles publicats en revistes (Institut de Bioenginyeria de Catalunya (IBEC))



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