Sökning: "Institutionen för kemiteknik"

Visar resultat 16 - 20 av 274 avhandlingar innehållade orden Institutionen för kemiteknik.

  1. 16. Influence of Polymeric Multilayer Treatment on Out-of Plane Properties of CTMP-Based Paperboard

    Författare :Gunilla Pettersson; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CTMP; Bulk; Multilayer; Polymre adsorption; Scott-Bond; Tensile strength; anionic starch; paperboard; cationic starch; CMC; sack paper; Stagnation Point Adsorption Reflectometry; Chemical engineering; Kemiteknik;

    Sammanfattning : .... LÄS MER

  3. 17. High Consistency Mechanical Treatment of Kraft Pulps under Steam Pressurised Conditions - Effects on Fibre and Sheet Properties

    Författare :Jessica C Sjöberg; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : .... LÄS MER

  4. 18. Frictional studies and high strain rate testing of wood under refining conditions

    Författare :Birgitta Svensson; Hans Höglund; Per A. Gradin; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction; High strain rate testing; Wood; Mechanical pulping; Tribology; Refining; Energy consumption; Chemical engineering; Kemiteknik;

    Sammanfattning : When producing thermomechanical pulps (TMP), wood chips and fiber material are loaded mechanically in a disc-refiner to separate the fibers and to make them flexible. In the process, much of the energy supplied is transferred to the fiber material through cyclic compression, shear and friction processes. LÄS MER

  5. 19. Fibre/fibre joints : their characterization and influence on different paper strength properties

    Författare :Annsofie Torgnysdotter; Lars Wågberg; Derek Gray; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : The main goal of this work was to gain knowledge of how to process the fibres for a certain enduse purpose. To reach this knowledge it must be clarified how different fibre properties, mechanical and chemical as well as surface and bulk properties, will influence the physical properties of the formed paper. LÄS MER

  7. 20. High temperature CTMP from birch

    Författare :Eva-Lotta Vesterlind; Jon Tore Eriksen; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical engineering; Kemiteknik;

    Sammanfattning : This thesis is intended to contribute to understanding of the chemithermomechanical pulping of birch intended for high freeness grades. It focuses on the effects that conditions during pre‐treatment, i.e. LÄS MER