SKM 2023 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 47: Wetting, Fluidics and Liquids at Interfaces and Surfaces II (joint session CPP/DY)

DY 47.5: Vortrag

Donnerstag, 30. März 2023, 16:00–16:15, MER 02

Light properties and water resistant of combined sobrerol methacrylate cellulose thin films. — •Constantin Harder1,2, Alexandros E. Alexakis3, Marie Betker1,3, Yusuf Bulut1,2, Benedikt Sochor1, Huaying Zhong2, Guangjiu Pan2, Manuel Reus2, Korneliya Goordeyeva3, Apostolos Vagias2,4, Daniel Söderberg3, Eva Malmström3, Peter Müller-Buschbaum2,4, and Stephan V. Roth1,31DESY, 22607 Hamburg, Germany — 2TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 3KTH Royal Institute of Technology, 10044 Stockholm, Sweden — 4MLZ, TUM, 85748 Garching, Germany

Functionalization of porous materials in terms of optical, chemical and mechanical properties is achieved by applying fully wood-based layers materials. In this project, the refraction index, extinction coefficient and water adhesion properties of cellulose thin films combined with sobrerol methacrylate colloids are investigated together with their topography and morphology. Cellulose nanofibrils (CNF) are a hydrophilic material, and form networks during the drying with specific refraction index, extinction coefficient. Applying additional colloids, their optical properties and water-contact angle can be tuned. Hence, in order to produce water-resistant thin film, a combination of CNF and colloids is a perfect candidate.

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