Cellulose Nanofibrils vs Nanocrystals: Rheology of Suspensions and Hydrogels.

ABSTRACT: Plant-derived nanocellulose particles, such as cellulose nanofibrils (CNFs) and cellulose nanocrystals (CNCs), are becoming increasingly popular for a wide range of applications. In particular, when they are employed as rheology modifiers and/or fillers, a choice between CNFs and CNCs is often not obvious. Here, we present the results of a comparative study on the rheological properties of suspensions and gels of carboxymethylated CNFs and CNCs with the same surface chemistry, surface density of charged groups, and thickness. We demonstrate that, at the same weight concentration, CNF suspensions have much higher viscosity and storage modulus, which is due to their longer length providing many entanglements. However, when comparing at the same nanoparticle concentration relative to C*, the

SUBMITTER: Ospennikov AS 

PROVIDER: S-EPMC12652647 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature