Oleic acid decorated kraft lignin as a hydrophobic and functional filler of cellulose acetate films

This study investigated using lignin (pristine and esterified) as a functional additive of cellulose acetate. The effect of varying concentrations of pristine kraft and oleic acid functionalized lignin in the cellulose acetate matrix and its effect on the resulting film's mechanical, morphological, viscoelastic, and water barrier properties were explored. Comprehensive characterization of the thermomechanical processed lignin-cellulose acetate sheets revealed reduced moisture absorption, improved UV and moisture barrier, and enhanced tensile properties with melt processability. Overall, the studied films could have appealing properties for food and other packaging applications, thus, serving as eco-friendly and sustainable alternatives to conventional petroleum-derived packing materials.PMID:38643912 | DOI:10.1016/j.ijbiomac.2024.131672
Source: International Journal of Biological Macromolecules - Category: Biochemistry Authors: Source Type: research