Sökning: "mechanical pre-treatment"

Visar resultat 1 - 5 av 16 uppsatser innehållade orden mechanical pre-treatment.

  1. 1. Study on Decolorization of Reactive-dyed Cotton through Fenton-oxidation as a Pre-treatment for Textile Recycling

    Master-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Elise Meurs; [2023]
    Nyckelord :Fenton-oxidation; advanced oxidation processes; decolorization; textile recycling; cotton; reactive dye;

    Sammanfattning : In this master thesis, the feasibility of Fenton-oxidation for the decolorization of reactive dyed cotton is investigated as a potentially environmental-friendly preparatory treatment for mechanical/chemical recycling. Raw, knitted cotton is dyed with a black and a blue dye, whereafter preliminary tests are performed to investigate the influence of increasing Fenton- solution concentrations and different iron-sources on the efficiency of the discoloration, without carrying out complete optimization of the process-parameters. LÄS MER

  3. 2. Production of biocomposite materials from filamentous fungi grown on apple pomace

    Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Angela Sabbagh; Susanna Bahari; [2022]
    Nyckelord :;

    Sammanfattning : Managing and reducing food waste has increasingly become a global problem in later years, including food waste in the form of fruit pulp from the juice and beverage production industries. Another current urgent issue is the need for a replacement of fossil fuel-based plastics with more sustainable biopolymers. LÄS MER

  4. 3. Reduction of Set-recovery of Surface densified Scots Pine by Furfuryl Alcohol

    Master-uppsats, Luleå tekniska universitet/Träteknik

    Författare :Lei Han; [2019]
    Nyckelord :surface densification; set-recovery; hardness; furfuryl alcohol;

    Sammanfattning :  For wood products such as flooring and worktop, only one surface is normally exposed in their use, and the mechanical properties like hardness and wearing resistance of that surface is then important. Since mechanical properties are strongly related to the density, surface densification, i.e. LÄS MER

  5. 4. Separation av rensenor : En renare framtid

    Kandidat-uppsats, Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Författare :Elisabeth Sjöberg; Jesper Evervall; [2019]
    Nyckelord :PBS; Trypsin type-I; EDTA; Deionized water; Sodium azide; Collagen; Enzyme; 2- Mercaptoethanol; Tendon; Reindeer tendon; Tendon thread.; PBS; Trypsin typ-I; EDTA; Avjoniserat vatten; Kollagen; Enzym; 2- merkaptoetanol; Senor; Rensenor; Sentråd;

    Sammanfattning : Tillverkning av tråd från rensenor är något som samer har gjort i flera generationer. Det samiska folket har alltid värnat om att ta tillvara på alla delar på djuret när en slakt sker. Lika väl kött och päls som senor. Sentrådar skapas av fibrer som kommer från renens ryggparti och ben. LÄS MER

  7. 5. Enhancement of Phenol Formaldehyde Adhesive with Crystalline Nano Cellulose

    Uppsats för yrkesexamina på grundnivå, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Johan Ekstrand; [2019]
    Nyckelord :Nano Cellulose; Fibrillated cellulose; Wood Adhesive; Shear strength; Adhesive Enhancement; Formaldehyde adhesive; Phenol Formaldehyde;

    Sammanfattning : Abstract The wood industries to this day use almost exclusively petroleum derived adhesives that are based mainly on the reaction of formaldehyde with urea, melamine or phenol. These adhesives have low cost and good adjustable properties which makes it hard for bio-based alternatives to compete. LÄS MER