Preparation and properties of antibacterial sodium dehydroacetate/modified film

Antibacterial polyethylene (PE) packaging films were prepared by combining granulation and casting with antibacterial agents sodium dehydroacetate (SD) potassium sorbate (PS). The scanning electron microscopy (SEM) was used to characterize the structure of films, effects various additives on their physical, optical, microstructure, thermal stability, properties investigated. results show that when SD: PS ratio is 2:1, film has higher tensile strength (14.71 MPa) than pure PE film. When 3:1, water vapor transmission coefficient lowest, increase SD concentration can result in good activity against microbes. excellent physical properties, making it ideal for food packaging.