STP1113

    Effect of Sorption of Organic Volatiles on the Mechanical Properties of Sealant Films

    Published: Jan 1991


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    Abstract

    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.

    Keywords:

    sealant films, mechanical properties, volatile flavors—apple juice, tomato juice, orange juice, d-limonene, polymers


    Author Information:

    Harte, BR
    Professor, professor, and assistant professor, School of Packaging, Michigan State University, East Lansing, MI

    Giacin, JR
    Professor, professor, and assistant professor, School of Packaging, Michigan State University, East Lansing, MI

    Imai, T
    Researcher, Toppan Printing Co., Ltd., Saitamia,

    Konczal, JB
    Packaging specialist, Cryovac, Duncan, SC

    Hoojjat, H
    Professor, professor, and assistant professor, School of Packaging, Michigan State University, East Lansing, MI


    Paper ID: STP14839S

    Committee/Subcommittee: F02.40

    DOI: 10.1520/STP14839S


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