Evaluating the Influence of Processing Conditions on Colloidal Stability and Particle Size in Fibrillated Nanocellulose

Abstract

Cellulose nanofibers (CNF) are nanostructures derived from cellulose's crystalline and amorphous regions through mechanical, chemical-mechanical, or enzymatic processes. Due to their high aspect ratio, extensive surface area, remarkable modulus of elasticity, and superior mechanical strength, CNFs have emerged as promising reinforcement materials in composite applications. Key properties such as colloidal stability, assessed via zeta potential, and nanofibril particle size provide critical insights into the dispersion and interaction of these fibers within a polymer matrix. These parameters are essential for optimizing composite performance and ensuring uniform fiber distribution. This study aimed to evaluate the influence of different preparation conditions on the zeta potential and particle size of CNFs, providing a better understanding of how processing parameters affect their characteristics.