Sökning: "photooxidation"

Hittade 4 uppsatser innehållade ordet photooxidation.

  1. 1. Analysis of degradation of melamine and polyurethane paint systems using different characterization methods. An investigation of automotive paints on trucks

    Master-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Oscar Sångberg; [2022]
    Nyckelord :Paint; degradation; analysis; melamine; polyurethane; Färg; nedbrytning; analys; melamin; polyuretan;

    Sammanfattning : Sammanfattning på svenska: Billacker är exponerade för solljus och nederbörd under hela lackens livslängd. Lacker behöver motstå faktorer i omgivningen som påverkar nedbrytningen för att leva upp till högt ställda visuella krav. LÄS MER

  3. 2. Hydrodynamic modelling of fate and transport of natural organic matter and per- and polyfluoroalkyl substances in Lake Ekoln

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Frida Ekman; [2021]
    Nyckelord :Ekoln; Natural organic matter NOM ; Total organic matter TOC ; Colour; degradation; sedimentation; photooxidation; PFAS; MIKE 3 FM; Ekoln; naturligt organiskt material NOM ; totalt organiskt kol TOC ; färg; nedbrytning; sedimentation; foto-oxidation; PFAS; MIKE 3 FM;

    Sammanfattning : Societies are facing great challenges with obtaining a good quality and quantity of drinking water in the context of climate change. Increases in natural organic matter (NOM) and per- and polyfluoroalkyl substances (PFAS) have been observed in lakes and drinking water the past years, which is of great concern for water treatment plants in Sweden. LÄS MER

  4. 3. Update of the LCA-software WAMPS : Proposing new emission factors and investigating the implications

    Master-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Hanna Unsbo; [2021]
    Nyckelord :Life cycle assessment LCA ; LCA model; WAMPS; Emission factors; Livscykelanalys LCA ; LCA-modell; WAMPS; Utsläppsfaktorer;

    Sammanfattning : In recent decades, life cycle assessment (LCA) has become a commonly used approach worldwide when studying environmental impacts linked to waste management systems. These systems are of a complex nature which includes everything from technical solutions, the environmental influence, and various stakeholders. LÄS MER

  5. 4. Integration of transparency into packaging design

    Master-uppsats, Lunds universitet/Förpackningslogistik

    Författare :Emma Pignères; [2018]
    Nyckelord :Agriculture and Food Sciences;

    Sammanfattning : Transparency has become a key sales pitch for companies! It enables them to show their product and tell the consumers they do not have nothing to hide. But from a technical point of view, transparency implies many risks for product's quality such as photooxidation and other reactions leading to colour change and decrease of product's quality. LÄS MER