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Modelling permeation of modified atmosphere gas mixtures through a low density polyethylene package film
Author(s) -
Llter M.,
Özilgen M.,
Orbey N.
Publication year - 1991
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.4990250403
Subject(s) - permeation , polyethylene , low density polyethylene , modified atmosphere , carbon dioxide , oxygen , permeability (electromagnetism) , materials science , chemical engineering , oxygen permeability , chemistry , analytical chemistry (journal) , shelf life , organic chemistry , composite material , biochemistry , food science , membrane , engineering
Permeation of individual gases through a low density polyethylene package film with CO 2 ‐N 2 and CO 2 ‐O 2 ‐N 2 mixtures was simulated with a simple mathematical model. Permeabilities of carbon dioxide were of the order of 10 −12 m 3 /s m 2 atm/m with CO 2 ‐N 2 systems. Including oxygen in the system did not change carbon dioxide permeabilities. Permeabilities of oxygen were of the order of magnitude of 10 −9 m 3 /sm 2 atm/m with this system. When a CO 2 ‐O 2 ‐N 2 mixture was humidified no substantial change was observed in CO 2 permeability, but the O 2 permeability decreased almost 10 times. These results and the mathematical model presented may help in the modified atmosphere package design to increase the shelf life of produce.