Physical Property Modeling of Multilayer Heavy Duty Sack Films, 2016 PLACE Conference 

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The heavy duty sack (HDS) market covers a broad range of applications, each with unique attributes required of the film. Multilayer film extrusion is used to achieve the demanding balance of properties required. To develop resins for this market it is necessary to understand how resins perform in complex structures. A design‐of‐experiment (DOE) approach was adopted to study the effects of film structure and processing conditions on finished properties of HDS films. Models developed based on the experimental program were used to predict properties for a range of end use applications. The models show how resin selection and processing conditions can be used to optimize properties in three layer films.