Sökning: "biocomposite"

Visar resultat 1 - 5 av 17 avhandlingar innehållade ordet biocomposite.

  1. 1. Structural changes during cellulose composite processing

    Författare :Helena Halonen; Monica Ek; Tommy Iversen; Derek D. Gray; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; CP MAS 13C NMR; cellulose; fibril aggregation; biocomposite; compression moulding; supramolecular structure;

    Sammanfattning : Two approaches for creating a new all-cellulose composite material have been studied: the biosynthesis of compartmentalised bacterial cellulose fibril aggregates and the compression moulding of commercial chemical wood pulps processed with only water. The objective was to study the structural changes during processing and the complexity of relating the mechanical properties of the final biocomposites to the nanoscale structure was highlighted. LÄS MER

  2. 2. Cellulose nanofibril materials with controlled structure : the influence of colloidal interactions

    Författare :Andreas Fall; Lars Wågberg; Anna Finne Wistrand; Paul Gatenholm; KTH; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Colloidal stability; cellulose nanofibrils; nanofibers; nanostructured materials; biocomposite; DLVO; gel;

    Sammanfattning : Nanoparticles are very interesting components. Due to their very large specific surface area they possess properties in between molecules and macroscopic materials. In addition, a material built up of hierarchically assembled nanoparticles could obtain unique properties, not possessed by the nanoparticles themself. LÄS MER

  3. 3. Cellulose network materials - compression molding and magnetic functionalization

    Författare :Sylvain Galland; Lars Berglund; Richard Olsson; Olli Ikkala; Aji Mathew; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cellulose fiber; nanopaper; biocomposite; magnetic nanoparticle;

    Sammanfattning : .... LÄS MER

  4. 4. 3D Printing Wood Tissue

    Författare :Kajsa Markstedt; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; ENGINEERING AND TECHNOLOGY; Hydrogel; Galactoglucomannan; Crosslinking; Biocomposite; 3D Printing; Wood Tissue; Xylan; Printability; Cellulose Nanofibrils;

    Sammanfattning : Biomass from forests provides society with energy, materials and chemicals, thus contributing to the circular bioeconomy. The majority of biomass is found in the wood tissue of trees. LÄS MER

  5. 5. High Clay Content Cellulose Nanocomposites for Mechanical Performance and Fire Retardancy

    Författare :Lilian Medina; Lars Berglund; Jeffrey W. Gilman; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; nanocellulose; nanofibril; nanofiber; CNF; nanoplatelet; nanostructure; tactoid; montmorillonite; MTM; foam; aerogel; porosity; PVA; poly vinyl alcohol ; epoxy; moisture; biocomposite; biomaterial; biobased; flame; cone calorimetry; gas barrier; coating; film.; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Materials based on wood can offer sustainable alternatives to fossil-based plastics and composites, and show interesting mechanical properties. However, the issue of their flammability is generally unresolved. In this thesis, eco-friendly, fire retardant clay-cellulose nanofibril materials are investigated. LÄS MER