Although various methods yield cellulose nanoparticles, their isolation usually involves three steps: (1) pretreatment of raw materials, (2) partial hydrolysis, and (3) mechanical disintegration (รนท, 2004). The process conditions that lead to nanometric dimensions affect the morphological characteristics of the nanoparticles, thereby influencing how they perform as reinforcement material in composites (Rosa et al„ 2010). In this context, the current challenge is to develop new potential processing techniques that will afford CNFs with controlled size and morphology.