Sökning: "cellulose nanofibrils CNF"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden cellulose nanofibrils CNF.

  1. 1. Development of a porous material from cellulose nanofibrils

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Hedda Törneman; [2021]
    Nyckelord :CNF; cellulose nanofibrils; xerogels; aerogels; cross-linking; porous materials; polymers;

    Sammanfattning : Cellulose nanofibrils are a biobased and renewable material with potential to be used in many different applications. Such applications include air filtration, absorption of liquids, and thermal insulation.  To be used for these applications the cellulose nanofibrils must form a porous and dry material. LÄS MER

  3. 2. Polymer Directed Engineering of Novel Cellulose Network

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Christel Gradin; Adina Landström; Julia Szecsödy; [2021]
    Nyckelord :Hydrogel; Carboxylated CNF; TEMPO-oxidation; bis-MPA ammonium dendrimer; Polymer salt bridge; Rheology;

    Sammanfattning : This study investigated a CNF/dendrimer hydrogel and how different concentrations of the carboxylated CNF and bis-MPA ammonium dendrimer affected the hydrogels’ rheological properties. A third generation bis-MPA ammonium dendrimer was diffused into a dispersion of carboxylated cellulose nanofibrils. LÄS MER

  4. 3. Property prediction of super-strong nanocellulose fibers

    Kandidat-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Maria Abada; Elin Fossum; Louise Brandt; Anton Åkesson; [2020]
    Nyckelord :Cellulose nanofibril CNF ; Spinning; Flow-stop; Flow-focusing; Mechanical properties; Carboxymethylation; TEMPO-oxidation;

    Sammanfattning : The innovative technology behind production of strong biofilaments involves the process of spinning filaments from nanoparticles extracted from wood. These nanoparticles are called cellulose nanofibrils (CNFs). LÄS MER

  5. 4. Transparent paper: Evaluation of chemical modification routes to achieve self-fibrillating fibres

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Paulina Sandberg Birgersson; [2020]
    Nyckelord :Transparent paper; nanopaper; nanocellulose; chemical modification of cellulose; cellulose nanofibrils CNF ; Transparent papper; nanopaper; nanocellulosa; kemisk modifiering av cellulosa; cellulosa nanofibriller CNF ; nanopapper;

    Sammanfattning : Transparenta papper tillverkade av cellulosa nanofibriller (CNF), visar stor potential att kunna ersätta petroleumbaserade plaster inom många användningsområden, till exempel för mat- och varuförpackningar. CNF, även känt som nanocellulosa, kombinerar viktiga cellulosaegenskaper, med unika egenskaper hos nanomaterial. LÄS MER

  7. 5. Composite Cellulose Nanofibrils Filaments

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Marius de Mourgues; [2020]
    Nyckelord :;

    Sammanfattning : Biodegradable polymers are emerging as a new solution to satisfy the increasing demand of greenenvironmentally friendly material. At the same time, the interest for lighter and stronger structures never stops growing. LÄS MER