which can effectively reduce the production cost; At the same time
the film prepared by multi-layer co-extrusion method can have excellent properties of various polymers
and has been widely used in food
medicine
daily chemicals and other fields. This paper provides an overview of the structure
performance and application fields of multi-layer co-extrusion films
summarizes the application in various fields and focuses on the development of biodegradable multi-layer co-extrusion films. The development trend of multilayer co-extrusion films is prospected.