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  • Medical Device Link . Performance Properties of Metallocene Polyethylene, EVA, and Flexible PVC Films
    devices is the extent to which a material acts as a barrier to the transmission of oxygen, water vapor, and other gases. Oxygen- and moisture-transmission rates are often erroneously used to predict the transmission rates of other gases or odors. The transmission rate of a particular substance through
  • Medical Device Link . Metallocene Polyethylene Films as Alternatives to Flexible PVC for Medical Device Fabrication
    or drainage bags. The mPE films used were 0.25 and 0.15 mm (10 and 6 mil) thick, and the PVC films were 0.18, 0.20, 0.23, and 0.25 mm (7, 8, 9, and 10 mil) thick. Since the films were embossed on one surface, thickness was reported as a nominal thickness per ASTM E 252.5 Standard physical properties
  • Medical Device Link . Gas Permeability and Medical Film Products
    , and the haze was determined by a haze meter (Haze Guard Plus). A differential scanning calorimeter (Thermal Analyzer 2100 series) at a scanning rate of 20 C/min was used to analyze film thermal properties. Material Density (g/cm3) Thickness (mil) WVTRaWVTRb ULDPE 1 0.9015 10 0.3313 0.846 ULDPE 2
  • Medical Device Link .
    of the 4.0-mil (100-mm) PVC film and the 6.0-mil (150-mm) EVA film that were being used in collection-bag structures (Table I). The asymmetric HF polyolefin film exhibited much lower water-vapor permeability (better water-vapor barrier) than both the EVA and PVC films and lower oxygen permeability (better