Essays about: "Polyester"

Showing result 16 - 20 of 63 essays containing the word Polyester.

  1. 16. Barrier properties of model coatings using recycled iron oxide pigment

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Nathalie Hagenfjärd; [2021]
    Keywords : Organic coatings; Iron oxide pigment; EIS; Barrier properties;

    Abstract : The aim of this study was to compare the barrier properties of organic coatings with the same polymer matrix but different types of iron oxide particles, commercial and recycled. The work was carried out for the company SSAB with the aim of investigating whether the pigment Merox ferric oxide, which is produced in-house at the company during the pickling process, can be used and replace commercial iron oxide pigment. READ MORE

  3. 17. Separation of microfibers from laundry waste water by hydrocyclone : In cooperation with Electrolux Professional

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

    Author : Anna Cecilia Carolina Lorentzon; [2021]
    Keywords : microfiber separation; microfibre separation; hydrocyclone; hydrocyclonic separation; microfibers; microfibres; laundry effluent; laundry waste water; laundry wastewater;

    Abstract : Microfibers, textile fibres shorter than 5 mm, and are shed from fabrics during wear and released into the laundry effluent during washing. When passed through the wastewater treatment plant (WWTP), they adsorb toxins, heavy metals and pathogens before being released into the environment. READ MORE

  4. 18. Structural modifications of polyester fibres induced by thermal and chemical treatments to obtain high-performance fibres

    University essay from KTH/Fiber- och polymerteknologi

    Author : Kartikeya Sharma; [2021]
    Keywords : PET fibres; P3HB fibres; Radial gradient; Chemical modification; Thermal annealing; High-performance fibres; PET-fibrer; P3HB-fibrer; Radiell lutning; Kemisk modifiering; termisk glödgning; högpresterande fibrer;

    Abstract : Del A: Polyetylentereftalat fibrer I detta arbete presenteras olika metoder för att framställa monofilament av polyetylentereftalat (PET) (diameter: 30-50 µm) med en radiell gradient. Nyutvecklad Raman-spektroskopiteknik har använts för att kartlägga dessa inducerade radiella gradienter i t.ex. kristallinitet. READ MORE

  5. 19. Method Development for Evaluating Pitch Dispersing Agents Used in the Kraft Pulping Process

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

    Author : Emma Olsson Månsson; [2020]
    Keywords : pitch deposit; dispersing agent evaluation; method development; calcium soaps;

    Abstract : Depending on wood species and the extractives of the wood, the paper and pulp processes might suffer from problems caused by the formation of pitch deposits from calcium soaps. BIM Kemi is a specialty chemical producer supplying the pulp and paper industry with dispersing agents, which prevent these problems. READ MORE

  6. 20. Polymer rejuvenation of PET textile waste

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

    Author : Sabrina Kopf; [2020]
    Keywords : PET; recycling; textiles; molecular weight;

    Abstract : Thermomechanical recycling of polyethylene terephthalate (PET) typically includes a decrease in the polymer´s intrinsic viscosity and therefore a reduction of the molecular weight. Consequently, thermomechanical recycling is usually a downcycling of the product. READ MORE