Sökning: "wood pulp fibers"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden wood pulp fibers.

  1. 1. Incorporation of Plasticizers through Refining into Wood Pulp : A Potential Route For Bio-based Thermoplastic Materials

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :Victor Eric Pierre Chartrain; [2023]
    Nyckelord :Cellulose; Paper; Plasticizer; Mechanical Refining; Cellulosa; Papper; Mjukgörare; mekanisk bearbetning;

    Sammanfattning : Fibers are interesting materials alternative to replace conventional fossil-based plastics, as they are bio-based and do not lead to CO2 emissions. Due to their limited ductility, it is difficult to use them to make complex three-dimensional shapes. LÄS MER

  3. 2. Improvements in Energy Efficiency of Vacuum Dewatering of Greaseproof Paper : Simulation of a Triple Vacuum Suction Box in Laboratory Scale

    Master-uppsats, Karlstads universitet/Avdelningen för kemiteknik

    Författare :Björn Öman; [2023]
    Nyckelord :Vacuum dewatering; greaseproof paper; triple vacuum suction box; grammage; energy efficiency; dryness; Vakuumavvattning; greaseproofpapper; trippelvakuumsuglåda; ytvikt; energieffektivitet; torrhalt;

    Sammanfattning : Vacuum dewatering of paper is a heavily energy expensive process, even more so for greaseproof paper, which is one of the main products at Nordic Paper Seffle AB. Due to this being such an energy demanding process, improvements in the vacuum dewatering could save massive amounts of energy. LÄS MER

  4. 3. Undersökning av mekaniska egenskaper hos sandwichelement av core-materialet Greenwood och ytskikt av papp : Styvhet, bärförmåga samt elementens beteenden vid belastning för olika tjocklekar på ytskikten

    Uppsats för yrkesexamina på grundnivå, Karlstads universitet

    Författare :Maxim Nilsson; [2023]
    Nyckelord :Greenwood; core-material; sandwich panel; paper; paperboard; Young`s modulus; modulus of elasticity; shear modulus; shear rigidity; flexural rigidity; load capacity; ultimate load; sandwich beam; flexural test; dynamic testing; static testing; maximum moment; failiure load; bearing; sandwich structure; kärnmaterial; sandwichelement; papp; kartong; E-modul; skjuvstyvhet; skjuvmodul; böjstyvhet; moment; lastkapacitet; maxlast; papper; sandwichbalk; sandwich struktur; provtryckning; böjprov; dynamisk provning; statisk testning; maxmoment; brottmoment; balklära;

    Sammanfattning : Byggbranschens utsläpp av växthusgaser utgör en stor andel av Sveriges totala utsläpp. För att minska de byggrelaterade utsläppen är det på många fronter som byggbranschen behöver förändras och effektiviseras. LÄS MER

  5. 4. Mechanical properties of viscose filament : Made from recycled cotton textile and softwood dissolving pulp

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Sanne Karlsson; [2022]
    Nyckelord :Recycled cotton textile; recycled textile; dissolving pulp; wood dissolving pulp; softwood; viscose dope; viscose filament; the viscose process; spinning process; Återvunnen bomullstextil; återvunnen textil; dissolvingmassa; trädissolvingmassa; barrved; viskos dop; viskosfilament; viskosprocessen; spinningprocess;

    Sammanfattning : The textile industry is one of the largest industries in the world and it causes up to 10 % of the global greenhouse gas emissions. With large environmental issues of cotton- and oil-based textiles, other options are explored such as man-made fibers producing fibers like viscose and lyocell. LÄS MER

  7. 5. The impact of interface characteristics on the recyclability and repulpability of packaging material

    Master-uppsats, Lunds universitet/Kemiteknik (CI)

    Författare :Ingrid Isacsson; [2022]
    Nyckelord :Tetra Pak ®; Recyclability; repulpability; packaging material; fiber-based barrier; chemical engineering; Technology and Engineering;

    Sammanfattning : The world is slowly moving towards a more environmentally friendly mindset and many companies, such as Tetra Pak® have followed this lead by producing more environmentally friendly products and developing better materials with less environmental impact. To accommodate these requirements, it is important that the package is recyclable. LÄS MER