Sökning: "Poly vinyl acetate"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Poly vinyl acetate.

  1. 1. Synthesis and characterization of a greener poly(vinyl acetate) adhesive

    Master-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Xiuting Zhang; [2023]
    Nyckelord :poly vinyl acetate -grafted-chitosan; chitosan; poly vinyl acetate ; ceric ammonium nitrate; green adhesive; poly vinyl acetat -ympad kitosan; poly vinyl acetat ; ceriumammoniumnitrat CAN ; grönt lim;

    Sammanfattning : To produce a greener adhesive is always an issue of concern to the commercial market and global environment. The environmental request for producing greener and bio-based adhesives leads to an increased awareness of replacing fossil-based components in adhesives with bio-based alternatives. LÄS MER

  3. 2. BJÖRNGRAVEN FRÅN KARATS En explorativ studie av arkeologiskt benmaterial och dess betydelse i den samiska religionen

    Kandidat-uppsats, Göteborgs universitet/Institutionen för kulturvård

    Författare :Matilda Sundström; [2021-03-11]
    Nyckelord :Bear grave; FTIR; Archeological Bone; PVAc; Sámi religion;

    Sammanfattning : This thesis is an exploratory study of a Sámi Bear Grave found on a small island in lake Karats, Jokkmokk in 1983. The grave was excavated in 1986 and put on display at Ájtte, Swedish Mountain and Sámi Museum in Jokkmokk. LÄS MER

  4. 3. A Comparative Life Cycle Assessment of Alternative Polymers to Poly(vinyl chloride) for Use in Flooring Applications

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Caroline Almqvist; Pernilla Larsson; [2021]
    Nyckelord :PVC; Flooring; Life Cycle Assessment; LCA; Polymer technology; Earth and Environmental Sciences; Chemistry; Technology and Engineering;

    Sammanfattning : Poly(vinyl chloride) has a long history of use in the flooring industry. Throughout the years, several environmental and health issues have arisen concerning the production, usage and disposal of PVC. LÄS MER

  5. 4. Reaction Mechanism between Chitosan and Cerium(VI) Ammonium Nitrate for Production of a Greener Poly(Vinyl Acetate) Adhesive

    Uppsats för yrkesexamina på grundnivå, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Mårten Schollin; [2021]
    Nyckelord :Chitosan; Poly vinyl acetate ; Cerium IV ammonium nitrate ; Grafting; Reaction mechanism;

    Sammanfattning : Poly(vinyl acetate) (PVAc) has a major application as an indoor wood adhesive. Low water stability is however, one of the greatest drawbacks of PVAc. By grafting PVAc from a chitosan (CS) backbone (CS-graft- PVAc) water stability of adhesive is increased while good mechanical and adhesive properties are retained. LÄS MER

  7. 5. Glucose Levulinates as Bio-plasticizers

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Wenxiang Xuan; [2017]
    Nyckelord :Gluocse esters; Levulinic acid; Plasticizer; Starch; Poly vinyl chloride ;

    Sammanfattning : Glucose, as the most plentiful sugar in nature, is a renewable resource and possesses excellent record in health safety. Levulinic acid is a platform chemical which plays an important role  in  biomass transformation and reactive intermediates. LÄS MER