What the function of poly vinyle alcohal?

Polyvinyl alcohol (PVA) is a synthetic polymer primarily used as a film-forming agent, thickener, and emulsifier in various applications. It is water-soluble and biodegradable, making it suitable for use in packaging materials, textiles, and adhesives. PVA is also used in cosmetics and pharmaceuticals for its ability to stabilize emulsions and enhance the texture of products. Additionally, it serves as a protective coating in various industrial applications due to its film-forming properties.