Sökning: "bio-based products"

Visar resultat 1 - 5 av 63 avhandlingar innehållade orden bio-based products.

  1. 1. Exploring bio-based monomers for UV-curable polymer networks

    Författare :Sara Brännström; Eva Malmström; Yves Leterrier; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Bio-based; polymers; vinyl ether; polyester; photopolymerization; lipase; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Increased environmental awareness and concern has led to a high demand for sustainable, bio-based materials. Consequently, there is a need for research and development of new bio-based polymeric materials that can be synthesized via routes eliminating excessively toxic reactants and by-products. LÄS MER

  3. 2. Sustainable synthetic pathways towards the formation of bio-based polymeric materials

    Författare :Susana Torrón; Mats Johansson; Dean Webster; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bio-based; polymers; materials; Kemi; Chemistry;

    Sammanfattning : Increasing environmental and social awareness arising from the use of oil as main source of raw materials, has awaken the interest of many scientists to explore new synthetic pathways for polymer production. These new approaches embrace the use of alternative feedstock and sustainable synthetic routes aiming for enhancing biodegradability and recyclability. LÄS MER

  4. 3. Bio-based Composites from Soybean Oil Thermosets and Natural Fibers

    Författare :Kayode Adekunle; Högskolan i Borås; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bio-based thermoset resins; natural fibres; hybrid composites; renewable resources; mechanical analysis; compression molding; lyocell fiber; Energi och material; Resursåtervinning; Resource Recovery;

    Sammanfattning : In order to reduce over-dependency on fossil fuels and to create an environment that is free of non-degradable plastics, and most importantly to reduce greenhouse gas emission, bio-based products are being developed from renewable resources through intense research to substitute conventional petrochemical-based plastics with renewable alternatives and to replace synthetic fibers with natural fibers. Many authors have done quite a lot of work on synthesizing polymers from renewable origin. LÄS MER

  5. 4. Environmental Assessment of Emerging Bio-based Production - Possibilities in a Future Bio-economy

    Författare :Anna Ekman; Miljö- och energisystem; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Biorefinery; Bio-based chemicals; Life cycle assessment; Industrial biotechnology; Bio-economy;

    Sammanfattning : The bio-economy has been put forward as a strategy to increase economic growth without this leading to increased emissions of greenhouse gases. A key concept behind the bio-economy is the increased use of biomass for applications such as the production of bio-based chemicals and materials but also an increased importance for biotechnology and biorefinery systems in the production of these products. LÄS MER

  7. 5. Hydrophobization of cellulose for bio-based materials

    Författare :Tianxiao Huang; Monica Ek; Merima Hasani; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Betulin; Cellulose; Hydrophobicity; Mechanical properties; Polymer-matrix composites; Sustainability; Textile; Betulin; Cellulosa; Hydrofobicitet; Hållbarhet; Mekaniska egenskaper; Polymer-matriskompositer; Textil; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Cellulosa, vilken är huvudkomponenten i växter förekommer rikligt i naturen, både på land och i havet. Cellulosabaserade material har i tusentals år använts av människan för dagliga förnödenheter som bränsle och konstruktionsmaterial. Cellulosa isolerades först av den franske forskaren Anselme Payen 1838. LÄS MER