Oxygen permeation of virgin HDPE films versus recycled HDPE films

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Title: Oxygen permeation of virgin HDPE films versus recycled HDPE films
Author: Al-Ati, Tareq
Abstract: In an attempt to confront consequences of the growing municipal solid waste stream, recycling has become one of the logical, successful, and practical solutions. With the expanding food and plastics industries, the proposition of using post-consumer materials in food-contact applications may be justifiable. However, for the recycling "cause" to succeed, its technologies and products have to fulfill the standards and requirements set forth by the parties involved: food and plastics industries, recyclers, FDA, to name few. In this study, 100% post-consumer HDPE films are found to have the same oxygen permeability as virgin HDPE films. Gas chromatography has been used in monitoring the permeability of oxygen of both materials. The finding of equal oxygen permeation rates for both recycled and virgin HDPE films may indicate that the recycling process in itself does not effect the oxygen permeation of the HDPE resins. The recommendation of this project is that recycled polymers should undergo further analysis to examine their safety before they are proposed for food-contact applications.
Record URI: http://hdl.handle.net/1850/11875
Date: 1994

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