PREDICTING PHYSICAL AND OPTICAL PROPERTIES OF CO-EXTRUDED BLOWN FILMS USING DESIGN OF EXPERIMENT BASED MODEL

摘要

Co-extrusion enables the combination of attributes of different polymeric resins to create films having unique and tailor-made properties. Besides the resins used in the film structure, the properties of co-extruded films depend upon factors such as film gauge, layer ratios, amount of blend component used in the layers. We developed an easy to use model with MS Excel interface to predict physical and optical properties of three layer co-extruded films. The model uses Design of Experiments (DoE) approach, and the regression coefficients obtained from each of the responses are used to model the film properties. The model enables designing film structures to optimize film properties and material cost.