Kuraraypovaluk

Polyvinyl Alcohol (PVA) is a water-soluble synthetic polymer widely used across various industries due to its unique properties and versatility. Derived from polyvinyl acetate (PVAc) through a process of hydrolysis, PVA has applications ranging from adhesives to pharmaceuticals. PVA’s chemical structure consists of repeating units of –[CH2CHOH]–, formed by the replacement of acetate groups in Polyvinyl alcohol with hydroxyl groups. This chemical composition imparts distinct properties such as. While PVA is biodegradable, its production relies on petrochemical derivatives, prompting research i

Barrier films are essential components in the food packaging industry, providing critical protection against environmental factors that can compromise food quality, safety, and shelf life. These films act as physical barriers to moisture, oxygen, light, and other external agents, ensuring that food products remain fresh and intact from production to consumption. The primary function of Barrier films for food packaging is to extend the shelf life of food products by preventing spoilage and preserving quality. These films maintain the sensory attributes of food—such as taste, aroma, texture, an