evoh barrier films

EVOH Barrier Films

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Composition

EVOH is a copolymer made from ethylene and vinyl alcohol. It is known for its excellent barrier properties against gases (like oxygen and carbon dioxide), making it a popular choice for packaging applications.

Characteristics

High Oxygen Barrier

Offers outstanding resistance to oxygen, which helps in preserving the freshness and shelf life of food products.

Moisture Sensitivity

While EVOH provides excellent oxygen barrier properties, it is sensitive to moisture; thus, it is often layered with other materials to protect it.

Applications

Food packaging (especially for products sensitive to oxidation, such as snacks, meats, and dairy).
Medical packaging, where maintaining sterility and preventing contamination is crucial.