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CPP: Fachverband Chemische Physik und Polymerphysik
CPP 15: Poster Session I
CPP 15.24: Poster
Montag, 17. März 2025, 19:00–21:00, P4
Latex film formation investigated by GISAXS and spectral reflectance — •Simon Schraad1,2, Helder Marques Salvador4, Nadja Kölpin1, Nicolae Tomozeiu4, Peter Müller-Buschbaum2, and Stephan Volkher Roth1,3 — 1Deutsches Elektronen Synchrotron, Notkestraße 85, 22607 Hamburg — 2TUM School of Natural Sciences, Chair for Functional Materials, 85748 Garching, Germany — 3Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Teknikringen 56, 100 44 Stockholm, Sweden — 4Canon Production Printing Netherlands B.V., Van der Grintenstraat 10, 5914 HH Venlo, Niederlande
The film formation of latex inks on nanoporous substrates is of high interest for scientific and industrial applications. Inks are multi-component, complex fluids and consist of colloids, pigments and solvents. The film formation is a multistage process. After deposition, solvent begins to evaporate and finally nanoparticles self assembly. To quantitatively analyze latex film formation a combination of in-situ grazing incidence small angle scattering (GISAXS) and light scattering will be employed. Here structural changes during the deformation and coalescence phase of latex colloids will result in changes in the scattering patterns. We present a design of an experimental spray chamber to allow in-situ GISAXS and the spectral reflectance during spray deposition of latex inks to be used at synchrotron facilities.
Keywords: cellulose nanofibril films; latex colloids; spray deposition; white light interferometry; grazing incidence small angle scattering