Search for dissertations about: "polypropylene films"
Showing result 1 - 5 of 14 swedish dissertations containing the words polypropylene films.
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1. Polypropylene : Morphology, defects and electrical breakdown
Abstract : Crystal structure, morphology and crystallization kinetics of melt-crystallized polypropylene and poly(propylene-stat-ethylene) fractions with 2.7 to 11.0 mol% of ethylene were studied by differential scanning calorimeter, wide- and small-angle X-ray scattering, polarized light microscopy, transmission electron microscopy and infrared spectroscopy. READ MORE
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2. Interactions between polymers and the environment
Abstract : This dissertation addresses the structure and properties of a number of polymer-based materials when they come into contact with specific environments. The first part describes the migration and depletion of active substances from insecticide-impregnated polyethylene sheets in water and air at different humidity levels and higher temperatures. READ MORE
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3. Biodegradable nanocomposite films based on amylopectin and chitosan
Abstract : The use of disposable material is rapidly increasing, today the absolute majority of the material used for these application, i.e. food packages, are oil-based plastics such as polyethylene and polypropylene. Therefore it is of great importance to find alternative biodegradable materials made from renewable resources for this huge growing market. READ MORE
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4. Oxygen-reducing enzymes in coatings and films for active packaging
Abstract : Oxygen scavengers are used in active packages to protect the food against deteriorative oxidation processes. The aim of this work was to investigate the possibilities to produce oxygen-scavenging packaging materials based on oxygen-reducing enzymes. READ MORE
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5. Designed from Recycled: Microwave-Assisted Upcycling of Plastic Waste
Abstract : Mismanagement of plastic waste is of great concern. To reach a more sustainable society, methodologies to handle materials in a more circular way needs to be developed. READ MORE