Rheological Properties of Nanocellulose Dispersions in the Dilute Region: Current Understanding and Future Perspectives

Abstract

The current knowledge and prospects for rheological properties of nanocellulose dispersions in a dilute region are presented. It is essential to clarify the rheological properties of dilute nanocellulose dispersions because they represent the properties of nanocellulose. This study highlights intrinsic viscosity and viscoelastic relaxation, which are indicators of average size, size distribution, and flexibility. While the intrinsic viscosity and viscoelastic relaxation of rod-shaped cellulose nanocrystals (CNCs) can be explained by existing theories of polymers, those of cellulose nanofibers (CNFs) are not fully understood because of their kinks and flexibility.

Mechanical and Thermal Properties of Porous Nanocellulose/Polymer Composites: Influence of the Polymer Chemical Structure and Porosity

“…Cellulose nanofibers (CNFs) are naturally occurring crystalline materials, and they satisfy the increasing demand for a sustainable and environmentally friendly stabilizer for Pickering emulsions. , The CNFs have high moduli and strengths , owing to their crystal structures and show unique rheological properties, such as high viscosity. , These mechanical and rheological properties of the CNFs play significant roles in the stabilization of emulsions against coalescence and creaming, making nanocellulose-stabilized emulsions highly attractive for use in foods, cosmetics, and pharmaceuticals. CNFs generally stabilize oil-in-water (o/w) emulsions by efficiently stabilizing the oil/water interfaces.…”