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A Review and Evaluation of Prediction Models of Gas Permeation for a Blended Flexible Packaging Film
Author(s) -
Ge Changfeng,
Popham Jake
Publication year - 2016
Publication title -
packaging technology and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.365
H-Index - 50
eISSN - 1099-1522
pISSN - 0894-3214
DOI - 10.1002/pts.2200
Subject(s) - permeation , materials science , oxygen permeability , permeability (electromagnetism) , low density polyethylene , scanning electron microscope , composite material , chemical engineering , polymer , oxygen , membrane , engineering , chemistry , organic chemistry , biochemistry
Barrier properties of blended film, such as oxygen permeability, are a collective behaviour contributed by different resins. This study reviews 10 most widely used prediction models of gas permeation for two‐phase blended film along with their assumptions and the interconnection and similarities between these models. Two blended blown films, LDPE/EVOH and PET/PEN, were produced representing two different permeability ratios of matrix‐to‐disperse phase. Effective oxygen permeability of the blended films was predicted by the models and compared with measured values. Scanning electron microscopy (SEM) micrographs of both films were obtained to understand the morphology in relation to gas permeation. The Fricke model and the effective medium theory model are recommended in this study to predict effective permeability of a blended flexible packaging film. Copyright © 2016 John Wiley & Sons, Ltd.