Sökning: "polyurethane foam"
Visar resultat 1 - 5 av 32 avhandlingar innehållade orden polyurethane foam.
1. Melt flow and surface stability effects on polymer flammability : A study on polystyrene, flexible polyurethane foam and polyolefin composites
Sammanfattning : Our ability to accurately determine the flammability properties of polymers is hampered bythe erratic effects of deformation and liquid flow that occur during polymer combustion.This study aims to improve the understanding of such effects at several levels: The often obvious impact of melt flow on standardized flammability test methods forelectrical appliances is described to identify the need and to motivate others to worktowards an improved material characterization. LÄS MER
2. Insulation materials in district heating pipes : Environmental and thermal performance of polyethylene terephthalate and polyurethane foam
Sammanfattning : District heating can contribute to increased energy efficiency in society. The environmental impact can be reduced by minimising the heat losses in the district heating pipes during distribution of the heat to the customers. LÄS MER
3. Blowing Agents in Rigid Polyurethane Foam - Analytical Studies - Technical and Environmental Aspects
Sammanfattning : Rigid polyurethane foam is used in many different applications because of its high insulating capacity. CFC-11 has been the predominant blowing agent due to its advantageous properties, especially its low thermal conductivity. LÄS MER
4. Environmental aspects on polyurethane insulated district heating pipes
Sammanfattning : .... LÄS MER
5. Determination of cell gases in rigid polyurethane foam
Sammanfattning : .... LÄS MER