Sökning: "urethane"

Hittade 5 uppsatser innehållade ordet urethane.

  1. 1. Investigation of the effects of Cannabidiol on sleep-like states and memory-associated brain events

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Tugdual Adam; [2020]
    Nyckelord :neuroscience; cannabidiol; sleep; anaesthesia; urethane; memory; local field potential; data analysis; acute surgery; sharp-wave ripples;

    Sammanfattning : A growing interest for Cannabidiol (CBD), a component of Cannabis Sativa, has occurred over the past years. The medical potential of the component is yet to be better characterized, as its effects on sleep, and in particular memory, are to date not well understood or consistently characterized. LÄS MER

  3. 2. A Study of Various Parameters Affecting Adhesion of Coatings to Metal Substrates

    Master-uppsats, KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Författare :Worabhorn Pathanatecha; [2019]
    Nyckelord :adhesion; coatings; metal substrates; silanes; polyurethanes; surface energy; crosslinking agent; adhesion promoters; vidhäftning; beläggningar; metallunderlag; silaner; polyuretaner; ytenergi; tvärbindningsmedel; vidhäftningspromotor;

    Sammanfattning : The adhesion of coatings is of high importance in the coating industry and a more thorough understanding of adhesion behavior is required. In this thesis work, seven parameters affecting adhesion of silane-modified poly(urethane urea) (PUSi) coatings on pretreated steel and aluminum substrates were studied. LÄS MER

  4. 3. Isocyanate-free polyurethane from cyclic carbonates : Synthesis, application and evaluation

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

    Författare :Christoffer Wallerek; [2016]
    Nyckelord :Isocyanate; polyurethane; cyclic; carbonate; NIPU; polymer; PU; polymer technology; Technology and Engineering; Chemistry;

    Sammanfattning : Polyurethane is a widely used polymer with a lot of different applications due to its versatility and often resilient properties. The polymeris often prepared as a two component system consisting of polyols and isocyanates and can be cured at relatively low temperatures. LÄS MER

  5. 4. Characterisation of the influence of curing temperature on the properties of 2K waterborne topcoat

    Master-uppsats, KTH/Kemi

    Författare :Anna Andersson; [2012]
    Nyckelord :Coatings; temperature; waterborne; curing; performance;

    Sammanfattning : Replacing solventborne coating with waterborne can reduce emission of VOC from paint shops, and decrease the amount of CO2 released from after-burners. The chemistry of 2K WB urethane coatings includes complex kinetics, with a selectivity which is highly dependent on application and curing conditions. LÄS MER

  7. 5. The Ski Boot Project

    Master-uppsats, Lunds universitet/Industridesign

    Författare :Claes Nellestam; [2009]
    Nyckelord :Technology and Engineering; Arts and Architecture;

    Sammanfattning : The subject of this Master degree project is skiboots. I saw a need of improvement in the skiboot industry. Skiboot technology has not progressed much the last decades while the ski culture has changed a lot. The skiboot is a challenging product to design as it is a stiff plastic shoe to wear while performing tough physical activity. LÄS MER