Ethylene Vinyl Alcohol (EVOH) is a formal copolymer , is prepared by polymerization of ethylene and vinyl acetate to give the ethylene vinyl acetate (EVA) copolymer followed by hydrolysis.
•The plastic resin is commonly used in food applications, and it has lately found application in plastic gasoline tanks for automobiles.
•Its primary purpose is to provide barrier properties, primarily as an oxygen and odor barrier for improved food packaging shelf life and as a hydrocarbon barrier for fuel tanks.
•EVOH is typically coextruded or laminated as a thin layer between cardboard, foil, or other plastics..