Essays about: "Impregnation"

Showing result 11 - 15 of 55 essays containing the word Impregnation.

  1. 11. Iron-catalyzed graphitization of biochar to produce graphitic carbon materials

    University essay from KTH/Materialvetenskap

    Author : Ziyi Shi; [2021]
    Keywords : graphite; biochar; catalyst; catalytic graphitization; grafit; biokol; katalysator; katalytisk grafitisering;

    Abstract : Demand for high-quality graphite is expected to experience an extraordinary growth rate, in large part due to its wide range of industrial applications such as adsorbents, lubricants, electrodes, etc. This thesis developed a novel sustainable approach to produce green-graphite materials by applying biochar, acarbon-rich valuable by-product obtained from biomass, as a carbon precursor. READ MORE

  3. 12. Stabilisation of arsenic in contaminated soil using iron distributed by electricity

    University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Author : Kajsa Engström; [2021]
    Keywords : Chemical stabilisation; soil remediation; contaminated soil; in situ pilot scale; sacrificial iron;

    Abstract : In Boden, northern part of Sweden, there is a site called Solgårdarna which has been used for wood impregnation. The activities on the site have led to soil contamination with chrome (Cr), copper (Cu) and arsenic (As), where the arsenic contamination is the most problematic. READ MORE

  4. 13. Surface functionalization of nonwoven polypropylene with BTCA polycarboxylic acid in supercritical carbon dioxide medium

    University essay from Högskolan i Borås/Akademin för textil, teknik och ekonomi

    Author : Md Fahad Khan; [2021]
    Keywords : Nonwoven polypropylene; Supercritical carbon dioxide; Surface functionalization; 1; 2; 3; 4- Butanetetracarboxylic acid; Impregnation; Environmentfriendly; Hydrophilicity;

    Abstract : Nonwoven polypropylene has been utilized broadly in various hygienic and medical textile applications because of its excellent mechanical properties, chemical resistance, and minimal expense contrast with other synthetic polymers. However, the insufficiency of surface tethering groups, including adhesion, wettability, and hydrophilicity, some applications are not convenient on nonwoven polypropylene surfaces such as dyeing, printing, attachment of antibacterial and bioactive agents. READ MORE

  5. 14. Development of waterborne and mild curing DWRs, formulated with fully bio-based substances

    University essay from KTH/Fiber- och polymerteknologi

    Author : Johannes R. S. van Overmeeren; [2020]
    Keywords : Durable water repellents; Bio-based; Biodegradable; Two-phase systems; Fluorine-free; Functional textile finishes; Vattenavvisning; Bio-baserad; Biologiskt nedbrytbar; Fluorkarbonfri; Funktionella textilbehandlingar;

    Abstract : ”Durable water repellents (DWR) är textilimpregneringar som bidrar med vattenavvisande egenskaper som håller länge på funktionella tyg. Tyvärr är dessa hydrofobiska ytbehandlingar vanligtvis en källa till skadliga och persistenta kemikalier och de även är producerade från fossilbaserade resurser. READ MORE

  6. 15. Biocomposite with Continuous Spun Cellulose Fibers

    University essay from Luleå tekniska universitet/Materialvetenskap

    Author : Rocio Nahir Pineda; [2020]
    Keywords : cellulose fibers; biocomposite; vacuum infusion process; film-stacking process; polylactic acid;

    Abstract : The subject of this project is to study spun cellulose fibers made by Spinnova Oy inFinland. The fibers are spun using an environmentally friendly spinning process withoutuse of harsh chemicals. READ MORE