Sökning: "Poly vinyl chloride"

Hittade 4 uppsatser innehållade orden Poly vinyl chloride.

  1. 1. Automation of carbonyl index calculations for fast evaluation of microplastics degradation

    Kandidat-uppsats, KTH/Fysik

    Författare :Maja Walfridson; Emma Kuttainen Thyni; [2022]
    Nyckelord :FTIR; Carbonyl index; Degradation of microplastics; Microplastics; Automation;

    Sammanfattning : The broad use of plastics has resulted in the increase in both production and consequent plastic pollution in the environment. Microplastics, defined as particles < 5 mm, is of special interest because of its wide existence in environment and potential hazards to our ecosystem. LÄS MER

  3. 2. 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

  4. 3. An Ion-Selective Electrode for Detection of Ammonium in Wastewater Treatment Plants

    Master-uppsats, KTH/Kemi

    Författare :Josephine Berg; [2021]
    Nyckelord :jonselektiv elektrod; membran; ammonium; sensor; reningsverk; ion-selective electrode ISE ; membrane; ammonium; sensor; wastewater treatment plant WWTP ;

    Sammanfattning : Att följa ammonium i reningsverk är avgörande för att förbättra reningsprocessen och kontrollera flödet av föroreningar ut till ekosystemet. Jonselektiva elektroder (ion-selective electrodes, ISEs) är en lovande teknik inom området, där polymermembran baserade på nonactin är de mest studerade membranen för ammoniumsensorer. LÄS MER

  5. 4. 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