Search for dissertations about: "thermal properties of natural fiber"
Showing result 1 - 5 of 57 swedish dissertations containing the words thermal properties of natural fiber.
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1. Long-term properties of polyethylene films : efficiency of a natural antioxidant
Abstract : There is a growing awareness of the risks of pollution in biological systems and one potential problem is the synthetic antioxidants, used for e.g. the stabilisation of polymeric materials. Natural antioxidants are an interesting alternative, if the high efficiency and thermal stability of the synthetic compounds can be reached. READ MORE
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2. Long-term Properties of Sustainable Polymeric Materials : Mechanical Recycling and Use of Renewable Resources
Abstract : New strategies for management of the accumulating amounts of plastic waste are required, to achieve a sustainable development in terms of material production and use. After service life, the materials should be recovered and recycled efficiently to provide a valuable resource for future applications. READ MORE
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3. Chemical Properties and Thermal Behaviour of Kraft Lignins
Abstract : Research concerning lignin has increased during the last years due to its renewability and ready availability in black liquor at pulp mills. Today, the kraft lignin found in black liquor is used as a fuel to gain energy in the recovery boiler at the mill. READ MORE
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4. Long-term Performance of PVC and CSPE Cables used in Nuclear Power Plants : the Effect of Degradation and Plasticizer migration
Abstract : Enormous amounts of low voltage cables installed in a Swedish nuclear power plant are reaching their expected lifetimes. Since the cables are crucial to operational safety, it is of great importance that the actual condition of the installed cables is determined. READ MORE
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5. Hybrid fiber preform fabrication using CO laser heating
Abstract : This thesis describes the development of a new prototyping technique for specialty optical fibers and covers all the fabrication steps from preform to fiber. The technique allows to produce fibers of a custom core structure and material composition, mainly focusing on semiconductor core fibers. READ MORE