Research on synthesis of composite films based on Polivinyl alcohol combined with maltodextrin and agar

Abstract

In present work, we report on the incorporation of maltodextrin and agar into PVA matrix aiming to improve the hydrophilicity of Polyvinyl alcohol (PVA) film. The biocomposite films based PVA, maltodextrin, and agar were fabricated via the simle casting method. The obtained results by FTIR analyses showed the formation of hydrogen interaction between hydroxyl groups in PVA, maltodextrin, and agar resulting in dense cross-linking network. The addition of agar and maltodextrin induced the change in PVA chains evidenced by XRD spectra. The hydrophobicity of blend films was determined via swelling and contact angle. Thus, the affinity toward water of PVA significantly decreased by the addition of agar và maltodextrin.