polüvinüülatsetaati

Polyvinyl acetate, often abbreviated as PVA or PVAc, is a synthetic polymer with the chemical formula (C4H6O2)n. It is a type of vinyl polymer and is widely used in various industrial and consumer applications. Polyvinyl acetate is produced through the polymerization of vinyl acetate monomer. This process typically involves free-radical polymerization.

The physical properties of polyvinyl acetate vary depending on its molecular weight and degree of polymerization. It is typically a white solid, often supplied as an emulsion or dispersion in water, which is commonly known as white glue or wood glue. These emulsions are stable colloids where fine particles of the polymer are suspended in water.

Polyvinyl acetate is known for its adhesive properties, making it a primary ingredient in many glues and adhesives. It forms strong bonds with porous materials like wood, paper, and fabrics. Its applications extend to paints and coatings, where it acts as a binder, providing durability and flexibility. It is also used in the textile industry as a sizing agent to strengthen yarns and in the paper industry to improve paper strength. Polyvinyl acetate is generally considered safe for its intended uses, though direct skin contact with the monomer should be avoided due to its potential for irritation.