Sökning: "Vad är Polymerer"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden Vad är Polymerer.

  1. 1. The effects of pH and biodegradation on polymer-based granules

    Master-uppsats, Lunds universitet/Bioteknik (master)

    Författare :Isak Svenningsson; [2021]
    Nyckelord :polymerteknik; biopolymer; bioteknik; Technology and Engineering; Biology and Life Sciences; Chemistry;

    Sammanfattning : The use of biopolymers instead of traditional fossil fuel based and non-biodegradable polymers is seen as a positive step forward towards a more environmentally friendly future. This project investigates a granule product that is used in a dishwashing system with the aim of gaining knowledge about how it is affected by the storage in between uses and its biodegradability. LÄS MER

  3. 2. Mapping and investigation of carbon emissions from incineration of plastics : A thesis investigation on common polymers and how they should be managed

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Amelie Gustafsson; [2020]
    Nyckelord :;

    Sammanfattning : In November 2016 did the city of Stockholm adapt a strategy on by 2040 only utilizing fossil free fuel in alignment with the national target of reaching net zero carbon emissions by 2045. District heating is a well-established technology in Sweden heating about 50 % of the Swedish households and was in 2015 responsible for 58 % of the total energy demand in buildings and households. LÄS MER

  4. 3. Lämpliga material för textila kärlimplantat : Kartläggning av kliniskt dokumenterade alternativ

    Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Ida Ljungberg; Amanda Martvall; [2020]
    Nyckelord :blood vessels; biocompatibility; FDA; compliance; vascular implants; synthetic polymers; U.S. Food and Drug Administration; Y-graft; blodkärl; biokompatibilitet; FDA; komplians; kärlimplantat; syntetiska polymerer; U.S. Food and Drug Administration; Y-graft;

    Sammanfattning : En tredjedel av alla bypass-operationer leder till att kärlimplantaten slutar fungerar inom ettårs tid. En anledning till detta är bildandet av ogynnsam vävnad som sker i form av ärrbildning efter implantationen. Ärrvävnaden orsakar nya förträngningar vilket leder till ett försämrat blodflöde. LÄS MER

  5. 4. Metodik för utmattning av asfaltbruk

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Trafik och väg

    Författare :Adi Hadzikadunic; Hussein Al-Sultani; [2020]
    Nyckelord :Asphalt; Bitumen; Filler; Mastics; Rheology; Fatigue; Dynamic Shear Rheometer; Technology and Engineering;

    Sammanfattning : The durability of asphalt can be investigated with fatigue tests, which unfortunately are very laborious and costly. Therefore, they are not used as often as they should. At LTH in Lund, an alternative method is utilized using a dynamic shear rheometer, DSR, on asphalt’s mastic for fatigue properties testing. LÄS MER

  7. 5. An Investigation of the Adhesive Interaction between Polyethylene and Silicone with DMA and AFM

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Joel Falk; [2019]
    Nyckelord :Atomic Force Microscope; Adhesion; Characterization; Dynamic Mechanical Analysis; Injection Molding; Polyethylene; Polymer; Silicone; Test method development; Materials chemistry; Materialkemi; Technology and Engineering;

    Sammanfattning : Stickiness between materials can be a challening task when dealing with the complex interactions and processes related to packaging engineering. Part of the problem is that many factors like temperature, pressure, surface treatment as well as surface roughness all could play a part in contributing to the stickiness between materials. LÄS MER