@article{article_1755607, title={Synthesis of Biocomposite of Kappa Carrageenan and Polyvinyl Alcohol for Bioplastic}, journal={The Eurasia Proceedings of Science Technology Engineering and Mathematics}, volume={34}, pages={377–387}, year={2025}, DOI={10.55549/epstem.1755607}, author={Sambudi, Nonni Soraya and Nova, Chaterine Lovy Sarah and Radini, Fitri Ayu}, keywords={Biocomposites, Kappa carrageenan, Solution casting, Chitosan}, abstract={This research investigates the effect of incorporating kappa carrageenan and chitosan into
biocomposites composed made from kappa carrageenan and polyvinyl alcohol, crosslinked with glutaraldehyde.
The objective is to characterize the resulting biocomposites films and determine the optimal formulation based
on mechanical properties and swelling behavior. The film were fabricated using the solution casting method,
with varying concentrations of kappa carrageenan (3%, 4%, and 5% w/v) and chitosan (1.32%, 1.76%, and 2.2%
w/v). Characterization was performed using Fourier Transform Infrared Spectroscopy (FTIR), water absorption
testing, tensile strength analysis, and elongation measurements. The results showed that the addition of kappa
carrageenan improved water resistance and tensile strength. Most biocomposite film samples met the National
Standard for tensile strength in bioplastic applications, except for the formulations containing 3% kappa
carrageenan with 1.76% chitosan and 5% kappa carrageenan with 2.2% chitosan, which did not meet the
standard.}, publisher={ISRES Publishing}