Sökning: "polyethylene"

Visar resultat 11 - 15 av 196 uppsatser innehållade ordet polyethylene.

  1. 11. Lösningar för regnvattenskörd för enbostadshus i Brikama

    Kandidat-uppsats, Jönköping University/JTH, Byggnadsteknik och belysningsvetenskap

    Författare :Sereh Nyassi; [2023]
    Nyckelord :Rainwater harvesting RWH ; potable water; water saving efficiency WSE ; operational parameters; Solvatten; Skörd av regnvatten RWH ; dricksvatten; vattenbesparingseffektivitet VBE ; driftsparametrar; Solvatten;

    Sammanfattning : Gambia is the smallest country on the African mainland, surrounded by Senegal on all it's borders except the coastal one. Gambia faces a pressing issue with water supply shortages, along with more than one third of the world’s population. LÄS MER

  3. 12. Quality Assurance of Recycled HDPE in the Plastic Packaging Industry

    Master-uppsats, Lunds universitet/Innovation

    Författare :Juliana Kalling; Tora Abrahamsson; [2023]
    Nyckelord :Thermoforming; Plastics; Recycling; Packaging Industry; HDPE; Technology and Engineering;

    Sammanfattning : The recycling of plastic has the potential to support circular material use, thus decreasing the need for virgin plastics. However, there is an existing issue with assuring quality of recycled plastic materials, causing finished products to perform with poorer properties and unexpected deviations. LÄS MER

  4. 13. Investigation of new hot melt adhesives with plasticisers based on renewable resources : Investigating the use of sustainable plasticisers in hot melt adhesives

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

    Författare :Shadi Feyzabi; [2023]
    Nyckelord :Hot melt adhesives; renewable; mineral oil; vegetable oil; rheology; viscosity; loop tack; adhesive strength; Smältlim; förnybar; mineralolja; vegetabilisk olja; reologi; viskositet; loop tack; vidhäftningsstyrka;

    Sammanfattning : Hot melt adhesives (HMA) are a class of adhesives that, unlike solvent-or waterborne counterparts, do not contain organic solvents or other carriers, and are produced and subsequently applied in a molten state. The main components of HMA are polymers, tackifying resins, and a plasticiser. LÄS MER

  5. 14. Service life study of environmentally friendly lubricants.

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

    Författare :Marybeth Chetachukwu Ugoh; [2023]
    Nyckelord :Base oil; Ageing; Glycerol; PPG; PEG; Squalene; Rapeseed oil; Ester; Paraffin; Oxidation; FTIR;

    Sammanfattning : Environmentally friendly lubricants are in demand in response to the rising concerns and restrictive legislation that surround the use of mineral oil lubricants. One area of importance is understanding the service life of the environmentally friendly base oils of these non-toxic, biodegradable and renewable alternatives. LÄS MER

  7. 15. Challenges to using recycled High-density polyethylene materials for pipe manufacturing

    Master-uppsats, Lunds universitet/Centrum för miljö- och klimatvetenskap (CEC)

    Författare :Lisa Erichs; [2023]
    Nyckelord :HDPE; Pressure pipe; Recycling; Properties; Earth and Environmental Sciences;

    Sammanfattning : Recycling has become increasingly relevant to solve environmental problems related to the enormous amount of plastic waste. Recycling plastic has many environmental benefits, but it is challenging to find applications where recycled plastic can provide the same functionality as virgin plastic. LÄS MER