Sökning: "plast miljöproblem"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden plast miljöproblem.

  1. 1. Biobased Photocurable Resins for 3D-Printing of Self-Healable & Recyclable Thermosets

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Anna Gardell; Maria Aspenberg; Julia Aziz; [2022]
    Nyckelord :vanillin; vitrimer; imine; resin; dynamic covalent bonds; biobased thermoset; photocuring; chemical recyclability; self-healing; digital light processing DLP ; 3D-printing; vanillin; vitrimer; imin; resin; dynamiska kovalenta bindningar; biobaserad härdplast; fotohärdning; kemisk återvinningsbarhet; självläkning; digital light processing DLP ; 3D-utskrift;

    Sammanfattning : Överkonsumtionen av engångsartiklar i fossilbaserad plast är ett av dagens stora miljöproblem. Således finns en efterfrågan på strategier för framställning av biobaserade plaster i allmänhet och härdplaster i synnerhet. LÄS MER

  3. 2. Research of alternative methods of marine litter collection : Study of marine plastic pollution

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Ciaran Conway; Aydar Gaynullin; [2022]
    Nyckelord :;

    Sammanfattning : The discovery of plastic and its unique qualities created a great opportunity for manufacturing and an improved quality of life. The annual production of plastic is 368 million tonnes, this number is continuously increasing as nowadays almost every product has a plastic component in it. However, this improvement in lifestyle comes at a cost. LÄS MER

  4. 3. Mikroplast i vattenavsatta sediment

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Björn Lycke; [2022]
    Nyckelord :Andong salt marsh; microplastics; MPs; trends; United Kingdom; Arctic; Tisza; Thames; Elbe; India; primary microplastics; secondary microplastics; PAH; polychlorinated biphenyls; toxic; poison; Earth and Environmental Sciences;

    Sammanfattning : Microplastics (MPs) are a major pollution concern since the start of the mass produc-tion of plastics in the 1950s. MPs form A) when plastics are produced intentionally to be part of beauty products and B) when plastics are broken down into smaller particles by sunlight, wind, and rain. LÄS MER

  5. 4. Recycling methods for glass fibre-reinforced plastic polymers : Glass fibre composites in a circular economy?

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

    Författare :Hanna Karlsson; [2022]
    Nyckelord :Composites; Glass; Fibre; Reinforced; Recycling; Circular economy; Circularity; Reinforcement; Plastic; Polymer; End-of-life; Reuse; Waste; Materials Chemistry; Chemistry;

    Sammanfattning : The reinforced composite industry is expanding. This raises the need for more sustainable resource use and waste management. A concept to combat both is circularity, creating a loop between the raw resources and the waste. Two important parts of circularity are recycling and reusing. LÄS MER

  7. 5. Novel materials from lignocellulosic sources- can they replace thermoplastics?

    Kandidat-uppsats, KTH/Fiber- och polymerteknologi

    Författare :Emmy Albinsson; Helina Tafesse Belachew; Jasmin Swaich; Hannah Juhlin; [2021]
    Nyckelord :Emulisonspolymerisation; Biobaserade plaster; Hållbarhet; Polymerer; Bearbetad halm; Kompositer; PISA-raft;

    Sammanfattning : Plastic waste is a severe environmental problem in today's society which has been noticed and discussed during the last couple of years. A constant increase of production over the last decades hasled to a large amount of plastic waste ending up in oceans as microplastics. LÄS MER