Sökning: "processability"

Visar resultat 16 - 20 av 80 avhandlingar innehållade ordet processability.

  1. 16. Characterization of injection molded polymers – from conventional to wood-based thermoplastics

    Författare :Linnea Björn; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SAXS; WAXS; melt processing; injection molding; Hierarchical Materials; Polyethylene; Dialcohol cellulose;

    Sammanfattning : The success of polymers products is associated with the melt processability, which allows to create products with complex shapes at a low cost. One of the most widely used processing techniques utilizing melt processability is injection molding, where a polymer is heated until it flows into a mold under pressure. LÄS MER

  3. 17. Increased Productivity of Ferrous Alloys Produced by Powder Bed Fusion - Laser Beam

    Författare :Rasmus Gunnerek; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; additive manufacturing; process optimization; build rate; build speed; powder bed fusion – laser beam; porosity; low alloy steel; 316L stainless steel; productivity in AM;

    Sammanfattning : Low production speeds limit wider adoption of powder bed fusion – laser beam (PBF-LB) in cost sensitive industries as it correlates directly with high production costs. The main process parameters such as scan speed, hatch distance and layer thickness can be scaled up to increase build speed, but it often comes at a trade off in lower quality, i. LÄS MER

  4. 18. Conjugated polymers with functional side chains for photovoltaics

    Författare :Kim Bini; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; side chain engineering; polymer solar cells; green solvent solubility; transmission electron microscopy; conjugated polymers;

    Sammanfattning : Polymer solar cells are quickly approaching viability as a large scale electrical power source. To increase their stability and processability in green solvents, we want to modify their solubilizing side chains with different functionalities. LÄS MER

  5. 19. Reactive extrusion of wood-thermoplastic composites

    Författare :Göran Grubbström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Trä och bionanokompositer; Wood and Bionanocomposites;

    Sammanfattning : The interest in Wood-thermoplastic composites (WPCs) has increased during the last decades. WPCs are commonly used as building material for decking and railing because of its low need of maintenance. Wood is a renewable resource of good mechanical properties and this make wood fibers interesting to use as reinforcement in a thermoplastic composite. LÄS MER

  7. 20. Molecular design, synthesis and performance evaluation of phenothiazine-based small molecules for efficient organic solar cells

    Författare :Srikanth Revoju; Bertil Eliasson; Haining Tian; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic solar cell; small molecule donors; phenothiazine; power conversion efficiency; organisk kemi; Organic Chemistry;

    Sammanfattning : Photovoltaics offers one of the most promising routes to generate electricity in a clean way. As an emerging technology in photovoltaics, organic solar cells (OSC) have attracted a great deal of attention owing to their potential low-cost, lightweight, flexibility and solution processability. LÄS MER