Abstract
In the present study, the different weight ratios of 7-hydroxy-4-methyl coumarin (7H4MC) mixed polyvinyl alcohol (PVA)/oxidized maize starch (OMS) blend films were achieved by the solvent casting method and coded as PSC. The prepared film samples were characterized by employing techniques such as FTIR, UTM, and SEM. The film samples were also subjected to their wettability, biodegradation and migration rate studies. Experimental outcomes showed that strong intermolecular hydrogen bonding between components of the blend films contribute to increase the mechanical properties, smoother surface morphology, increase in surface hydrophobicity, improvement in biodegradability, and exhibited migration rates below the overall migration limit (OML). Furthermore, moisture content, density, optical properties, water absorption, water solubility, water vapour transmission rate and antioxidant properties are discussed in detail. With all these properties, PVA/OMS/7H4MC blend films have the potential to use as packaging material.
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