Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

CPP: Fachverband Chemische Physik und Polymerphysik

CPP 34: Emerging Topics in Chemical and Polymer Physics, New Instruments and Methods I

CPP 34.5: Vortrag

Donnerstag, 21. März 2024, 10:45–11:00, H 0106

Laser Diffraction for Defectoscopy of Cellulose Filaments — •Damien Pierce, Korneliya Gordeyeva, Anastasia Riazanova, Tomas Rosén, and Daniel Söderberg — KTH Royal Institute of Technology, Stockholm, Sweden

Filaments produced from the wet spinning of Cellulose nanofibrils are a promising alternative to those derived from fossil fuels. These filaments are the strongest bio-based filaments currently available, with potential uses in the production of high-performance textiles. However, establishing what the weakest point of such filaments is, has yet to be conclusively determined. We demonstrate the potential of laser diffraction as a defectoscopy technique. Tomograms of the apparent width of the filament were measured using laser diffraction and compared with SEM measurements. Tensile testing was performed in order to correlate the observed structures with the breakage point. We expect this technique to provide a rapid, non-destructive method of quality control, greatly speeding up the optimisation of processing conditions.

Keywords: Cellulose; Laser Diffraction; Defectoscopy; Tomography