Sökning: "fibre separation"

Visar resultat 21 - 25 av 48 avhandlingar innehållade orden fibre separation.

  1. 21. Controlled Polymer Grafting from Nanoparticles for the Design of Dielectric Nanocomposites

    Författare :Martin Wåhlander; Eva Malmström; Anna Carlmark; Henrik Hillborg; Sanat K. Kumar; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The interest for polymeric nanocomposites has rapidly grown during the last decades, fuelled by the great potential and superior properties of nanoparticles (NPs). The production volumes of commercial NPs have increased exponentially during the last ten years, and the quality has been significantly improved. LÄS MER

  3. 22. Development and Tailoring of Low‐Density Cellulose‐Based Structures for Water Treatment

    Författare :Zhaleh Atoufi Najafabadi; Lars Wågberg; Per A. Larsson; Julien Bras; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Adsorption; Aerogels; Amyloid nanofibrils; Cellulose; Cellulose nanofibrils; β- lactoglobulin; water treatment; Adsorption; Aerogel; Amyloid nanofibriller; Cellulosa; Cellulosa nanofibriller; β- laktoglobulin; vattenbehandling; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : The challenges posed by our limited clean water sources and the well-known global water pollution demand more efficient water purification technologies. Additionally, the increasing environmental awareness has inspired a shift towards eco-friendly and renewable materials and technologies. LÄS MER

  4. 23. Porous Materials from Cellulose Nanofibrils

    Författare :Nicholas Tchang Cervin; Lars Wågberg; Björn Lindman; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Poröst material; cellulosa nanofibriller; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : In the first part of this work a novel type of low-density, sponge-like material for the separation of mixtures of oil and water has been prepared by vapour deposition of hydrophobic tri-chloro-silanes on ultra-porous cellulose nanofibril (CNF) aerogels. To achieve this, a highly porous (>99%) robust CNF aerogel with high structural flexibility is first formed by freeze-drying an aqueous suspension of the CNFs. LÄS MER

  5. 24. Fracture Behaviour of Wood and Fibres as Related to the Mechanical Pulping Process

    Författare :Jan-Erik Berg; Mittuniversitetet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Acoustic emission; Engineering mechanics; Teknisk mekanik;

    Sammanfattning : The fibre separation step in refining is crucial to energy consumption.... LÄS MER

  7. 25. STRUCTURAL RETROFITTING OF CONCRETE BEAMS USING FRP - Debonding Issues

    Författare :Yasmeen Obaidat; Byggnadsmekanik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : A 3D nonlinear finite element analysis modelling framework was developed for simulating the behaviour of beams retrofitted with fibre reinforced polymer (FRP). The ABAQUS program was used for this purpose. Concrete was modelled using a plastic damage model. LÄS MER