[2PS-167]
Process-Morphology mapping of CNF microbeads by air spray atomization
발표자임지호 (경북대학교)
연구책임자박재형 (경북대학교)
Abstract
Cellulose nanofiber have emerged as promising biomass-derived building blocks for sustainable functional materials. CNF hydrogel microbeads are versatile carriers, and their performance depends on bead size and shape control. In this study, CNF beads were fabricated via spray coagulation in CaCl2, and the effects of processing variables, including spray distance and pressure, CNF concentration, and CaCl₂ concentration, on bead formation were investigated. Morphology was observed by optical microscopy and quantified by circularity and aspect ratio. As a result, we demonstrated process-driven controllability of CNF microbead morphology and enabled the fabrication of diverse bead geometries, including spherical, hemispherical, and highly flattened(disk-like) forms. These findings provide a basis for structural control in energy-efficient and scalable manufacturing of CNF microbeads. This work was supported by the NRF grant funded by the Korean government (MSIT)(Grant No.RS-2025-23322995)