Sökning: "fibrer"

Visar resultat 1 - 5 av 118 avhandlingar innehållade ordet fibrer.

  1. 1. Design of Cellulose-Based Materials via Sustainable and Scalable Processes

    Författare :Yunus Can Görür; Lars Wågberg; Per A. Larsson; Tsuguyuki Saito; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Transparent paper; cellulose nanofiber; fibers; CNF; nanofibrillation; nanopaper; functional hybrids; nanocomposites; green materials; energy storage; binders; Transparent papper; cellulosa nanofiber; fibrer; CNF; nanofibrillering; nanopapper; funktionella hybrider; nanokompositer; gröna material; energilagring; bindemedel; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Plastic pollution is one of the most pressing environmental issues in today’s world. Addressing this problem calls for the development of environmentally friendly alternatives that would reduce the amount of persistent plastic waste. LÄS MER

  3. 2. Integrative structural biology of protein fibers: Spider silk and beta-lactoglobulin nanofibrils

    Författare :Danilo Hirabae De Oliveira; My Hedhammar; Christofer Lendel; Martin Humenik; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Spider Silk; Spidroin; fiber protein structure; amyloid-like fibers; Beta-lactoglobulin; Spindel silke; Spidroin; fiberproteinstruktur; amyloidliknande fibrer; Betalaktoglobulin; Biotechnology; Bioteknologi;

    Sammanfattning : Proteins found in nature offer a vast range of exceptional materials, including high-performancebiopolymers such as spider silks and whey protein nanofibrils. Fibrous proteins possess immensepotential for developing novel materials suited for various applications, such as medicalbiomaterials or industrial products. LÄS MER

  4. 3. Eco-friendly Holocellulose Materials for Mechanical Performance and Optical Transmittance

    Författare :Xuan Yang; Lars Berglund; Eero Kontturi; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Cellulosic materials can be sustainable replacements for fossil-based plastics; yet for some applications improvements are needed for mechanical properties, optical transmittance and eco-friendly characteristics. In this thesis, holocellulose materials are investigated for this purpose, and processing-structure-property relationships are discussed. LÄS MER

  5. 4. Formation and properties of polyelectrolyte multilayers on wood fibres : influence on paper strength and fibre wettability

    Författare :Rikard Lingström; Lars Wågberg; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; polyelectrolyte; multilayer; adsorption; reflectance; contact angle; dynamics; paper; mechanical properties; individual; wood fibre; Chemistry; Kemi;

    Sammanfattning : The work in this licentiate thesis examines the adsorption of polyelectrolyte multilayers (PEM) onto wood fibres as a new way to influence the properties of the fibre surfaces and hence the fibres. Fundamental aspects of PEM formation on wood fibres have been studied, and discussed in terms of paper strength and wood fibre wettability. LÄS MER

  7. 5. Laser processing of Silica based glass

    Författare :Patrik Holmberg; Fredrik Laurell; Valerio Pruneri; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber Bragg Gratings; photosensitivity; Glass; laser machining; optical fibers; fiber sensor; Physics; Fysik;

    Sammanfattning : The main topic of this thesis work is photosensitivity and photo-structuring of optical fibers and bulk glass. Although research in the field of photosensitivity in glass and optical fibers has been ongoing for more than three decades, the underlying mechanisms are still not well understood. LÄS MER