Sökning: "regenererad cellulosa"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden regenererad cellulosa.

  1. 1. From recovery boiler to integration of a textile fiber plant : Combination of mass balance analysis and chemical engineering

    Författare :Hans Magnusson; Ulf Germgård; Gunnar Henriksson; Hans Theliander; Karlstads universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; kraft pulping; recovery boiler; smelt properties; non-process elements; oxygen delignification; viscose manufacturing; integrated production; regenerated cellulose; sulfatmassa; fysikaliska egenskaper; smälta; sodapanna; processfrämmande ämnen; bioraffinaderi; integrerad produktion; regenererad cellulosa; Chemical Engineering; Kemiteknik;

    Sammanfattning : Modern chemical technology is an efficient tool for solving problems, particularly within the complex environment of the pulp and paper industry, and the combination of experimental studies, mill data and mass balance calculations are of fundamental importance to the development of the industry. In this study various examples are presented, whereby chemical technology is of fundamental importance. LÄS MER

  3. 2. Computational Studies of Cellulose-based Materials

    Författare :Jiu Pang; Igor Zozoulenko; Alexandar Mehandzhiyski; Sergei Popov; Maria Sammalkorpi; Linköpings universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : Cellulose is a remarkable organic biopolymer and sustainable raw material existing in nature. Over the past several decades, the study of cellulose materials has attracted significant attention in chemistry, physics, biomedicine, and engineering fields. LÄS MER

  4. 3. Polysaccharides from red and green seaweed : Extraction, characterisation and applications

    Författare :Niklas Wahlström; Ulrica Edlund; Fredrik Gröndahl; Federica Chiellini; KTH; []
    Nyckelord :biorefinery; seaweed; macroalgae; Ulva; Porphyra; ulvan; porphyran; cellulose; gelatin; hydrogel; heavy metal; methylene blue; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Sammanfattning : Cultivation of seaweed has been conducted for centuries in Asia, but is largely undeveloped in Sweden even though there is potential for this industry. Seaweed offers benefits compared with land-based biomass cultivation. LÄS MER

  5. 4. Improvement on cellulose accessibility and reactivity of different wood pulps

    Författare :Viviana Köpcke; Monica Ek; KTH; []
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; cellulose; accessibility; reactivity; enzymatic treatment; mechanical treatment; chemical treatment; dissolving pulp; paper grade pulps; Wood fibre and forest products; Träfiber- och virkeslära;

    Sammanfattning : Cellulosans tillgänglighet och reaktivitet är nyckelparametrar vid framställning av regenererad cellulosa och cellulosaderivat. Det är välkänt att på grund av cellulosans kristallina struktur är tillgängligheten begränsad för lösningsmedel och olika reagens. LÄS MER

  7. 5. Structural impact on some physical properties of cellulose-based films

    Författare :Malin Nejström; Magnus Norgren; Håkan Edlund; Ida Svanedal; Bo Andreasson; Lars Evenäs; Mittuniversitetet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Cellulose is a natural material that can be used both in its original form and as a building block for creating new types of materials. This work focused on regenerated cellulose (RC) and cellulose acetate butyrate (CAB) in which the hydroxyls on the cellulose backbone were substituted with ester groups. LÄS MER