Sökning: "Microfibrillated cellulose"

Visar resultat 1 - 5 av 13 uppsatser innehållade orden Microfibrillated cellulose.

  1. 1. Temperature dependency of rheological properites of different dispersions containing microfibrillated cellulose

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

    Författare :Johanna Swanelius; [2022]
    Nyckelord :Microfibrillated cellulose; MFC; waxy maize starch; rheology; temperature; viscosity; complex viscosity; stready shear viscosity curve; amplitude sweep; dry content; dynamic rotational rheometer; Mikrofibrillerad cellulosa; MFC; vaxartad majsstärkelse; reologi; temperatur; viskositet; komplex viskositet; flödeskurva; amplitudsvep; torrhalt; dynamisk reometer;

    Sammanfattning : Today, the focus lies on the state of the environment and how we can choose more sustainable alternatives to oil based materials. One material of interest is microfibrillated cellulose (MFC). LÄS MER

  3. 2. Biomimetically improved materials comprising microfibrillated cellulose

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Cornelia Byström; [2021]
    Nyckelord :;

    Sammanfattning : Microfibrillated cellulose (MFC) is a renewable, cellulosic material mainly producedfrom wood fibers, which are found in the secondary cell walls of plant cells. With theincreased demand for renewable biopolymer films in packaging, MFC has emerged asa potential alternative to non-renewable polymer films. LÄS MER

  4. 3. CORRELATIONS BETWEEN PHYSICOCHEMICAL PROPERTIES IN MATERIALS COMPRISING MICROFIBRILLATED CELLULOSE : CORRELATIONS BETWEEN PHYSICOCHEMICAL PROPERTIES IN MATERIALS COMPRISING MICROFIBRILLATED CELLULOSE

    Master-uppsats, Umeå universitet/Kemiska institutionen

    Författare :Johanna Nilsson; [2021]
    Nyckelord :;

    Sammanfattning : Microfibrillated cellulose (MFC) films have gained a lot of industrial interest lately dueto their good barrier properties and good mechanical strength. In this study it wasinvestigated whether rheological characteristics and conductivity of MFC dispersionscomprised of different MFC grades could be correlated to tensile properties of the MFCfilms produced from the corresponding MFC dispersion. LÄS MER

  5. 4. Method development for rheological characterization of microfibrillated cellulose

    Master-uppsats, Karlstads universitet

    Författare :Elin Wahlkrantz; [2020]
    Nyckelord :microfibrillated cellulose; MFC; rheology; characterization; dynamic rotational rheometer; complex viscosity; amplitude sweep; dry content; pH; conductivity; measuring geometry; gel; mikrofibrillerad cellulosa; MFC; reologi; karakterisering; dynamisk rotationsreometer; komplex viskositet; amplitudsvep; torrhalt; pH; konduktivitet; mätgeometri; gel;

    Sammanfattning : This thesis contributes to a development of a method for rheological characterization of microfibrillated cellulose. The intended use of the method is to be able to distinguish between different grades of microfibrillated cellulose. LÄS MER

  7. 5. Polyvinyl alcohol (PVA) adhesives reinforced by microfibrillated cellulose (MFC) – adhesive properties and reinforcement mechanisms

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Daniela Wloch; [2019]
    Nyckelord :PVA adhesive; boric acid; MFC; cross-linkers; aluminum sulfate; initial wet tack;

    Sammanfattning : The aim of the project was to investigate a green and sustainable replacement for boric acid in polyvinyl alcohol (PVA) adhesives for solid paperboard production. Boric acid acts as a cross-linker and tackifier in the adhesive but is classified as a harmful substance. LÄS MER