What is it about?
This study reports a very clean processing approach of incorporating cellulose nanocrystal (CNC) into a TPU matrix, with no acid or organic-solvents usage. It involves a mechanical deconstruction of microcrystalline cellulose (MCC) into nanoscale particles in water and polyol through scalable bead-milling, vacuum drying, and followed by twin-screw reactive extrusion with isocyanate and chain extender.
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Why is it important?
This processing approach could be an attractive solution for processing polymer nanocomposites with a range of nanoparticles, which can be easily dispersed in water, incorporated into suitable precursors without any organic solvents, and processed via classical reactive extrusion processing methods.
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This page is a summary of: A cleaner processing approach for cellulose reinforced thermoplastic polyurethane nanocomposites, Polymer Engineering & Science, January 2022, Wiley, DOI: 10.1002/pen.25899.
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