Effect of Grain Husk Microfibers on Physicochemical Properties of Carboxymethyl Polysaccharides-Based Composite

Abstract

Preparation of the novel biodegradable composite based on carboxymethylated starch and cellulose matrix and plant llers have been described. As a ller milled cereal husks of various origin: rye, spelt, and rice were used. Additionally, softwood our was used for comparison. Introducing natural ller bene cially affected the mechanical parameters of the CMS/CMC system, as moisture absorption as well as solubility in water decreased (e.g. by ca. 7% and 6%, respectively for CMS/CMC with rice husk ller when compared to the neat system). Moreover the mechanical properties, i.e. Young's modulus and tensile strength increased. The chemical composition and size of natural llers are essential factors determining the physicochemical properties of obtained composites, and cereal husks are promising raw materials for lling hydrophilic polysaccharide matrix.