@article{article_785250, title={Physical and Mechanical Properties of Citric Acid Modified Corn Starch/Microcrystalline Cellulose Films}, journal={International Journal of Pure and Applied Sciences}, volume={6}, pages={179–185}, year={2020}, DOI={10.29132/ijpas.785250}, author={Gürler, Nedim}, keywords={Çapraz bağlayıcı, mısır nişastası, mikrokristalin selüloz}, abstract={In this study, the effect of citric acid on physical and mechanical properties on glycerol plasticized modified corn starch/microcrystalline cellulose (SC) composite films were investigated. The films were prepared by the casting method. FTIR spectroscopy showed that strong hydrogen bond interactions were formed as a result of the crosslinking of starch and citric acid. Citric acid was added to SC films in different proportions (1%, 5%, 10% and 20%). With the addition of 1% citric acid, the mechanical stress of SC1 exhibited a better tensile strength than SC film without citric acid. In addition, for SC1, the lowest water vapor permeability (WVP) and solubility occurred. While WVP of SC film was 5.56 × 10-7 g Pa-1 s-1 m-1, it was 5.41 × 10-7 g Pa-1 s-1 m-1 with the addition of 1% citric acid, WVP was decreased. Optical properties of the films were also studied. SC films were more opaque than films containing citric acid, moreover, the higher the crosslinker concentration, the lower the opacity.}, number={2}, publisher={Munzur Üniversitesi}