In many transport and storage situations, medical packages are exposed to cryogenic conditions. In this article we describe the impact behavior of many of the commonly used medical film materials as a function of tempera ture from about —140 to + 20 ° C. High speed stress-strain data were generated on an instrumented impact tester fitted with a cryogenic sample conditioning chamber. In addition, the observed impact properties were correlated to the Dynamic Mechanical spectrum to provide better understanding of the molec ular basis for physical property behavior.
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