There is a growing interest on nanocellulose (nanofibrils or nanocrystals) for industrial applications. They can be used as a monomaterial (e.g. films) or as an additive in formulation. This study focused on the second point with preparation of nanofibrils (TEMPO or not) and nanocrystals from Sisal and their addition in polyvinyl alcohol (PVA) or starch solution. Viscosity of such solution and suspension was studied in order to assess their interest in paper coating. Microfibrillated cellulose and whiskers both have shear thinning properties, however they react differently with the addition of polymers. Influence of type of nanocellulose and their concentration has been studied. The evolution of viscosity versus concentration highlighted interactions between cellulose and polyvinyl alcohol or starch. Addition of 5% NFC in PVA completely changed behavior from Newtonian to Rheo-thinning suspension.

Different nanocelluloses as additives in polymer matrix solutions: Influence on rheology properties

243rd National Meeting (2012)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.