Preparation and Properties of Barrier Films based on PE/Surlyn/organoclay Nanocomposites

Low density polyethylene (LDPE) is one of the most widely used polyolefin polymers because of its special properties. Polyethylene nanocomposite films based onimpermeable lamellar fillers such as montmorillonites have received considerable attention since they may lead to enhanced barrier properties with less filler content than conventional composite films [1-3]. Using compatibilizers is necessary prior to introduction of themodified clay into the PE matrix in order to achieve a better dispersion of the caly [4-6]. In this research PE/Surlyn/montmorillonite nanocomposites, that surlynwas used as compatibilizer, were prepared by melt compounding with clay content of 0 to 7 wt%. The barrier properties, morphology, tensile strength, thermal and rheological properties of these nanocomposites were studied