The objective of this study was to investigate the effect of the starch incorporation and homogenization
temperature on the properties of cellulose sulfate (NaCS)-based films plasticized with glycerol. The filmforming
solution, physicochemical microscopic and mechanical properties of films were studied. The SEM
of the composite film was more rough than NaCS films, but no signs of phase separation between components
were observed. As the starch proportion increased, composite films became more fragile to
break, whereas a positive effect on the elasticity of films was realized by a considerable increase in E%
values. The composite films presented lower water vapor permeability than films without starch. The
temperature for preparation of film-forming solution also had adverse effect on film properties. NaCS film
incorporated with 25% starch showed greatly improved resistance to water, though 5% decreasing in TS
and small change in other properties compared with NaCS film.