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Effect of Sorption of Organic Volatiles on the Mechanical Properties of Sealant Films
Jack R. Giacin
BR. Harte
H. Hoojjat
T. Imai
JB. Konczal
出版
ASTM International
, 1991
URL
http://books.google.com.hk/books?id=hOJ6zgEACAAJ&hl=&source=gbs_api
註釋
The influence of sorption of organic volatiles on the mechanical properties of polymeric sealant films was investigated. Three sealant films were used, a commercial low-density polyethylene, and two developmental films, an ethylene vinyl alcohol copolymer of high ethylene content and a copolyester. Samples of the films were immersed in three different juices (orange juice, apple juice, and tomato juice) for up to 24 days at 22°C. Periodically, film samples were removed from the different juices and the stress-strain properties, heat seal strengths, and impact resistance of the test materials determined as a function of sorbed organic volatile levels or storage time. Statistically significant differences were found in the mechanical properties of the films as a function of sorbant level and storage time. The amount of change varied and was dependent on the film-juice system and the mechanical property evaluated.
