Sökning: "bioplastics"

Visar resultat 6 - 10 av 10 avhandlingar innehållade ordet bioplastics.

  1. 6. Aqueous graphene dispersions for paper packaging

    Författare :Wei Zhao; Anwar Ahniyaz; Abhilash Sugunan; Thomas Gillgren; Johan A. Larsson; Zhi-Bin Zhang; Shi-Li Zhang; Valeria Nicolosi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Graphene; Aqueous graphene dispersions; Noncovalent interactions; Composites; Barriers; Inkjet printing; Kemi med inriktning mot kemisk fysik; Chemistry with specialization in Chemical Physics;

    Sammanfattning : Graphene is widely touted as the thinnest and the most versatile material available. As an atomically thin layer of carbon atoms arranged in a hexagonal configuration, graphene has a combination of technologically important properties, such as thermal and electrical conductivity, mechanical strength, and impermeability to gases. LÄS MER

  3. 7. Optically pure lactic acid production from lignocellulosic biomass

    Författare :Joana Coutinho Campos; Avdelningen för kemiteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lactic acid; enantiomers; softwood; waste viscose; fermentation; Pediococcus acidilactici;

    Sammanfattning : Lactic acid is a platform chemical that can be used for many applications. More recently, optically pure lactic acid—L- or D-lactic acid enantiomers—have been used for the polymerisation to poly-lactic acid (PLA). LÄS MER

  4. 8. Revealing the potential of Nordic microalgae : turning waste streams into resources

    Författare :Martin Plöhn; Christiane Funk; Leif J. Jönsson; Maria Barbosa; Umeå universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Microalgae; Biotechnology; bioremediation; Heavy metal; Biopolymer; Biodegradable; Sustainability; Chlorella vulgaris; Biochemistry; biokemi; environmental science; miljövetenskap;

    Sammanfattning : As the world's population grows, the demand for fresh water, food, fuel, energy and modern technology increases tremendously. Not only does this require enormous amounts of resources but it also increases the amount of waste and especially wastewater. LÄS MER

  5. 9. Application of Synthetic Biology for Biopolymer Production using Saccharomyces cerevisiae

    Författare :Alejandro Muñoz De Las Heras; Teknisk mikrobiologi; []
    Nyckelord :Saccharomyce cerevisiae; Xylose; Poly-3-d-hydroxybutyrate PHB ; NADH; NADPH; Acetyl-CoA; Metabolic engineering;

    Sammanfattning : Plastics are versatile, cheap and durable materials that are omnipresent in modern society. Since most of them are derived from crude oil and are not biodegradable, their production leads to the depletion of fossil fuels and the accumulation of enormous amounts of plastic waste that pollutes ecosystems worldwide. LÄS MER

  7. 10. Towards molecular weight-dependent uses of kraft lignin

    Författare :Ayumu Tagami; Mikael Lindström; Olena Sevastyanova; Anna Wistrand; Stefan Backa; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; kraft lignin; successive solvent fractionation; molecular weight; structural analysis; thermal stability; heat capacity; antioxidant activity; methylene blue sorption; tunicate cellulose nanofiber-starch lignin composites films; film properties; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : There is growing demand for a more efficient use of polymers that originate from renewable feedstocks due to the depleting supply of fossil fuels, based on economic and environmental reasons. As a result, lignin has attracted renewed interest as a resource for various bioproducts. LÄS MER