Vigilancia Tecnológica

A polybutyrolactam-based degradable multi-layer composite film, consisting of an oxygen barrier layer, a bonding layer and a moisture barrier layer. The oxygen barrier layer is formed of polybutyrolactam, the bonding layer is formed of polyvinyl alcohol, and the moisture barrier layer is formed of a polyester hydrophobic biodegradable polymer. The multi-layer composite film shows excellent barrier properties, mechanical strength and toughness, and is widely applied in the field of biodegradable food packages.