Rheological Properties of Nanocomposites Based on Cellulose Nanofibrils and Cellulose Nanocrystals

This chapter provides an overview on the rheological properties of cellulose nanofibrils, cellulose nanocrystals, and nanocomposites based on them. The chapter commences with an introduction on the significance and applicability of rheological analyses for the detailed understanding of cellulose-based nanocomposites. In addition, a detailed description is given on the measurement of rheological parameters (e.g., storage and loss moduli, damping factor) and the major factors (e.g., processing conditions, structure, morphology, chemical modifications) which have influential effects on these properties. In-depth studies on the technological developments involving rheological properties of various polymer nanocomposites based on cellulose have also been included, providing a general idea on the individual types. Also, rheology as a functional tool for the monitoring of gel formation in hydrogel nanocomposites has also been dealt with. Finally, the chapter concludes with the hope of being useful in applying these data for the better understanding and development in the field of cellulose-based nanocomposites.