Search for dissertations about: "bio-based"

Showing result 1 - 5 of 88 swedish dissertations containing the word bio-based.

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

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Sara Brännström; KTH.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Bio-based; polymers; vinyl ether; polyester; photopolymerization; lipase; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : 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. READ MORE

  2. 2. High Performance Bio-based Composites Mechanical and Environmental Durability

    University dissertation from Luleå tekniska universitet

    Author : Newsha Doroudgarian; Luleå tekniska universitet.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polymera konstruktionsmaterial; Polymeric Composite Materials;

    Abstract : The presented work is a part of the ongoing effort on the development of high performance bio-based composites with enhanced durability, under static and dynamic mechanical loading including the exposure to elevated humidity. The impact of relative humidity on the performance of cellulosic fibers (natural and regenerated), bio-based resins and their composites was studied. READ MORE

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

    University dissertation from Chalmers University of Technology

    Author : Kayode Adekunle; Högskolan i Borås.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Resource Recovery; Resursåtervinning; bio-based thermoset resins; natural fibres; hybrid composites; renewable resources; mechanical analysis; compression molding; lyocell fiber; Energi och material; hybrid composite; natural fiber; Bio-based thermoset resin;

    Abstract : 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. READ MORE

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

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Susana Torrón; KTH.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; bio-based; polymers; materials; Kemi; Chemistry;

    Abstract : 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. READ MORE

  5. 5. Bio-based barriers from wood hydrolysates : A pilot-scale approach

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Soheil Saadatmand; KTH.; [2014]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood hydrolysate; biorefinery; oxygen permeability; multilayer barriers; food packaging.; vedhydrolysat; syrgaspermeabilitet; barriärskikt; livsmedelsförpackning;

    Abstract : Wood hydrolysates (WHs) are liquids extracted from the hydrothermal treatment of wood. They exist as the byproduct of forestry industries such as the dissolving pulp and fiberboard industries. WHs are hemicellulose-based with a large share of lignin in the chemical composition. READ MORE