PVA is the only vinyl polymer that can be used as a carbon source and energy source by bacteria. It can be degraded by 75% in 46 days under the action of bacteria and enzymes. It is a biodegradable polymer material. It can be produced on a large scale by non-oil routes, and its price is low. Its oil resistance, solvent resistance and gas barrier performance are outstanding, and it has unique advantages in food and pharmaceutical packaging.

The application of PVA is based on the solution method, and the film material is prepared by casting film formation, but the solution processing needs to undergo the dissolution and drying process, and has the disadvantages of complicated process, high cost, low yield, etc., and it is difficult to prepare thick-walled and complex-shaped products. At the same time, it is not possible to co-extrude blow molding with other materials to prepare a multilayer composite film.

We are a manufacturer and manufacturer-LIWEI CHEMICAL CO. LTD of polyvinyl alcohol. Our products have won the trust and love of domestic and foreign customers with high quality. Our company has always been pursuing sincere service to customers and looks forward to reaching cooperation with more domestic and foreign customers.