Sökning: "papermaking"

Visar resultat 1 - 5 av 22 uppsatser innehållade ordet papermaking.

  1. 1. Modified cellulose synthesized by different deep eutectic solvents as an additive in paper making process

    Master-uppsats, Karlstads universitet

    Författare :Shiniar Said Saleh; [2023]
    Nyckelord :green chemistry; dry strength additives; deep eutectic solvents; sodium periodate oxidation; charge density; dewatering; mechanical strength.;

    Sammanfattning : The environmental concerns that come with the currently used traditional papermaking process where petroleum-based additives are used, has tempted researchers to study “green” additives by introducing environmentally friendly modifications of cellulose as an additive in the papermaking process. This thesis will spin further on that by producing additives with different charge densities and focus on to incorporate an etherification reaction into potentially greens systems based on non-toxic and readily biodegradable deep eutectic solvent (DES). LÄS MER

  3. 2. Framtagande av mätmetod för koncentration av fixativ i bakvatten : Undersökning om FTIR lämpar sig som analysmetod med processvatten för en mjukpapperstillverkning

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

    Författare :Laura Paet; [2023]
    Nyckelord :bakvatten; fixativ; ATR-FTIR; koncentration; mjukpapper;

    Sammanfattning : Rexcell Tissue & Airlaid AB is a producer of paper products such as coloured tissue, where it is important to manufacture a product that does not release any colour during usage. To prevent colour bleeding, a fixative is added during the paper dyeing process. LÄS MER

  4. 3. LIGHT RECORD PLAYER

    Magister-uppsats, KTH/Ljusdesign

    Författare :Yanwei Liu; [2022]
    Nyckelord :Luminaire Design; Sustainability; Asian Paper; The Circular Economy;

    Sammanfattning : Inspired by the implicit beauty Asian paper could create in interior design (Tanizaki 1977), the cultural and historical value it bears, and its sustainable papermaking process, this research intends to apply Asian paper’s aesthetic and sustainable value in luminaire design. This is an exploratory and project-based study, which includes four steps. LÄS MER

  5. 4. Characterization of retention chemicals and their effect on the paper forming process on machine PM4, Billerud Korsnäs Gävle Mill.

    Kandidat-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Therese Alm; [2021]
    Nyckelord :Retention; retention polymers; retention microparticle; dewatering; turbidity;

    Sammanfattning : In the papermaking industries spots in the finished product is a recurring problem. Billerud Korsnäs have in earlier studies identified poorly optimized retention systems as one of the reasons for these spots. LÄS MER

  7. 5. Hur kan en klimatneutral betong nås i Sverige år 2045? : En översiktsstudie om framstegen att reducera betongens klimatpåverkan i Sverige

    Kandidat-uppsats, KTH/Byggteknik och design

    Författare :Aron Christoffersson; Mohammed Abdi; [2020]
    Nyckelord :;

    Sammanfattning : Concrete is a composite material consisting of aggregate (stone, sand & gravel), water, and cement. Concrete is one of the world's most important and utilized construction materials and is used to build everything from cities and skyscrapers to bridges, dams, roads and much more. LÄS MER