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Structure–property relationships in polyethylene based films obtained by blow molding as model system of industrial relevance

DOI: 10.1016/j.eurpolymj.2014.11.009 DOI Help

Authors: Donatella Duraccio (University of Reading) , Amalia Mauriello (Università di Napoli “Federico II”) , Sossio Cimmino (Consiglio Nazionale delle Ricerche (CNR)) , Clara Silvestre (Consiglio Nazionale delle Ricerche (CNR)) , Finizia Auriemma (Università di Napoli “Federico II”) , Claudio De Rosa (Università di Napoli “Federico II”) , Beniamino Pirozzi (Università di Napoli “Federico II”) , Geoffrey Robert Mitchell (Institute Polytechnic Leiria)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: European Polymer Journal , VOL 62 , PAGES 97 - 107

State: Published (Approved)
Published: January 2015

Abstract: A method for the study of structure–property relationships of polyethylene (PE)-based films of potential use in food packaging has been set up. The approach has been demonstrated in the case of films obtained by blow-molding using model mixtures of two different polyethylenes, namely a metallocene-made grade of linear low density polyethylene (mLLDPE) and a low density polyethylene (LDPE). We show that physical properties important for numerous applications of these films, such as water vapor and oxygen permeability, toughness and stress strength, are related to the molecular structure and structural and morphological parameters of the blends, in particular, thickness of amorphous layers in lamellar stacks, lamellar thickness, lamellar twisting, and degree and type of branching.

Journal Keywords: Polyethylene; Blends; Saxs; Waxs; Solution 13C Nmr

Subject Areas: Materials, Chemistry

Instruments: I22-Small angle scattering & Diffraction

Added On: 10/07/2015 19:22

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