Review on Physicochemical Modification of Biodegradable Plastic: Focus on Agar and Polyvinyl Alcohol (PVA)

Plastics materials which are used in our daily life especially for packaging applications derived from petrochemicals. Though these plastic satisfy the required properties of terms strength, water resistance, and durability, they not biodegradable stay landfills plenty years. This causes serious environmental threat pollution. Owing to this, plastics have been emerged as an alternative conventional plastics. However, most biodegrade dependent on forest reserves even some may affect food supply. Nevertheless, agar polyvinyl alcohol (PVA) neither deforestation nor stock. PVA supply, high absorption a moderate tensile strength. restricts use polymers applications. Researchers physicochemical modification methods improve with due attention PVA. review presents basics polymers, chemistry biodegradation, impacts special focus