Sökning: "Polymerteknik"
Visar resultat 21 - 25 av 37 avhandlingar innehållade ordet Polymerteknik.
21. Plasticized Poly (lactic acid) Films - Preparation and Properties
Sammanfattning : The development of biodegradable polymers from renewable resources is of importance in order to prevent the depletion of fossil fuels and the increasing emissions of carbon dioxide to the atmosphere caused by the commodity plastics of today. However, to be able to replace these non-environmentally friendly materials, production costs of biodegradable polymers have to be decreased and their physical properties need to be enhanced. LÄS MER
22. Degradation Mechanism and Effects of Vitamin E addition in UHMWPE Hip Implants
Sammanfattning : Wear of the UHMWPE component is one of the major concerns in joint replacement surgery, triggering prosthetic loosening leading to revision. The understanding of the mechanisms of material degradation, especially in regard to oxidation, is one of the keys to significantly improve the mechanical properties. LÄS MER
23. Mass spectrometric studies of cellulose ethers
Sammanfattning : Cellulose based derivatives, such as cellulose ethers, today find many applications in a diverse range of fields. The numerous applications put high demands on the technological performance of the cellulose ethers. LÄS MER
24. Lithium Ion Conductive Membranes Based on Co-continuous Polymer Blends
Sammanfattning : There is a growing need for multifunctional polymeric materials for the development of several important energy conversion technologies. For example, the polymer electrolyte is a key component in lithium polymer batteries. The basic functions of this electrolyte are to efficiently conduct the lithium ions and physically separate the electrodes. LÄS MER
25. Morphology and Properties of Polymer Blends -Polypropylene and a Thermoplastic Elastomer -Polypropylene/Polyamide (1/1) and a Modified Thermoplastic Elastomer
Sammanfattning : The search for polymeric materials with new property profiles has stimulated a great interest into polymer blends and reactive processing. During recent years many new blends have reached the market. LÄS MER