title: Determining permeability and diffusion rates in polymer films and packaging materials.
abstract: This article describes a rapid and effective means of calculating diffusion and permeability constants for a range of polymer films and packaging materials with various vapours. The sealed diffusion-cell method, in combination with a high performance DVS-1 gravimetric analysis system, provides fundamental data for thin films and rapid screening of composite films when designing advanced packaging systems or calculating potential shelf-life of packaged devices.
authors: Surface Measurement Systems Ltd, London, UK.
authors: C L
authors: CL
authors: Levoguer
authors: D R
authors: DR
authors: Williams
mesh_terms: D004058:Diffusion; D004867:Equipment Design; D004864:Equipment and Supplies / Q000592:standards*; D006801:Humans; D008432:Mathematical Computing; D010539:Permeability; D011108:Polymers / Q000737:chemistry*; D019064:Product Packaging
chemical_list: D011108:Polymers