Optical characteristics of cellulose nanofiber film stored for 5 years
This study investigates the five-year natural aging effects on the optical properties of two cellulose nanofiber films, revealing that TEMPO-oxidized cellulose nanofibers (TOCNF) undergo significant yellowing and opacity loss while aqueous counter collision cellulose nanofibers (ACC-CNF) show minimal yellowing but reduced haze, indicating distinct degradation mechanisms between the two materials.