Sökning: "AKD"

Hittade 5 uppsatser innehållade ordet AKD.

  1. 1. Chemical modification of regenerated-cellulose films with determined patterns and different regeneration mediums to achieve superhydrophobic properties

    Kandidat-uppsats, Mittuniversitetet/Institutionen för kemiteknik

    Författare :Pornpan Kongthong; [2021]
    Nyckelord :Surface roughness; regeneration of cellulose; Regenerated-cellulose; superhydrophobic surfaces; Alkyl Ketene Dimer AKD ; Scanning Electron Microscope SEM and X-Ray diffraction XRD ;

    Sammanfattning : In our modern society there is a need to find a material that is biodegradable to reduce the use of plastic for a greener society. By means of superhydrophobic surfaces there is a possibility to replace plastic with cellulose and use Alkyl Ketene Dimer (AKD) as a sizing agent to make the surface hydrophobic. LÄS MER

  3. 2. Bacteria - based self - healing mortar with bio - plastic healing agents : Comparative analysis on quantification and characterization of self-healing by various experimental techniques

    Master-uppsats, KTH/Betongbyggnad

    Författare :Rahul Roy; [2020]
    Nyckelord :Mortar; crack; autonomous healing; bacteria; bioplastic; lactic acid derivatives PLA ; alkanoate derivatives AKD ; internal crack geometry; quantification; characterization; statistical analysis; Bruk; sprickbildning; självläkning; bakteriebaserademedel; bioplast; mjölksyrederivat PLA ; alkanoatderivat AKD ; inre sprickbildning; kvantifiering; karakterisering; statistisk analys;

    Sammanfattning : Crack formation in concrete structures due to various load and non-load factors leading to degradation of service life is very common. Repair and maintenance operations are, therefore, necessary to prevent cracks propagating and reducing the service life of the structures. LÄS MER

  4. 3. Undersökning av stabilitet hos AKD-lim i olika processbetingelser vid papperstillverkning

    Master-uppsats, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Gabriella Thun Salguero; [2020]
    Nyckelord :Alkyl keten dimer; AKD; Flödescytometri; Flödescytometer;

    Sammanfattning : Ett vanligt återkommande problem inom pappersindustrin är fläckar på den färdiga produkten. BillerudKorsnäs Gävle har genom undersökningar kommit fram till att en del fläckar som just nu uppkommer till stor del består av Alkyl keten dimer, AKD. LÄS MER

  5. 4. Influence of level of cellulose oxidation and surface treatment on the adhesion between cellulose beads

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

    Författare :Rasmus Källgren; [2020]
    Nyckelord :Cellulose; Fibre; Surface Coating; Layer-by-Layer; Oxidation; Cellulosa; Fiber; Ytbehandling; Layer-by-Layer; Oxidation;

    Sammanfattning : With the growing impact of climate change on both political decisions and how companies develop their products, it is increasingly important to find environmentally friendly alternatives to fossil-based materials. One of the more interesting materials in this respect is cellulose, which is the world's most naturally occurring polymer and can be used in a variety of applications. LÄS MER

  7. 5. Sizing of different pulp qualities

    Uppsats för yrkesexamina på grundnivå, Fakulteten för teknik- och naturvetenskap

    Författare :Carolina Larsson; [2008]
    Nyckelord :Sizing; AKD; Rosin; edge wicking;

    Sammanfattning : Edge wicking, i.e. in-plane wetting, is an important parameter for liquid packaging board products. Before filling of the products at the dairy the web is being sterilised with hydrogen peroxide (H2O2). LÄS MER