Essays about: "Kristallinitet"

Showing result 1 - 5 of 8 essays containing the word Kristallinitet.

  1. 1. Fibre volume fractions’ and printing directions’ effects on tribological and mechanical properties in FDM printed carbon fibre reinforced PEEK : Suitability assessment of FDM printed PEEK-CF to act in a steam engine’s ball joint, by analysis of compressive properties, impact strength, friction and wear

    University essay from Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Author : William Tönnberg; [2022]
    Keywords : Ranotor; steam engine; PEEK; polyether-ether-ketone; carbon fibre reinforced PEEK; impact strength; compressive strength; compressive modulus; friction; wear; tribology; FFF; FDM; 3D-printing; printing parameters;

    Abstract : The purpose with this study was to investigate FDM/FFF manufactured carbon fibre reinforced PEEK and assess its suitability to act as a sealing- and bearing material in a modern steam engine’s ball joint. The steam engine is totally free from oil due to the risk of water- and steam contamination. READ MORE

  3. 2. Metal-Organic Frameworks for Carbon Dioxide Capture : Using Sustainable Synthesis Routes

    University essay from Uppsala universitet/Institutionen för materialvetenskap

    Author : Dhruva Deole; [2022]
    Keywords : Metal-Organic Frameworks; Metal-Organic Frameworks for Carbon Dioxide Capture; Sustainable Synthesis; 3D Printing of Metal-Organic Frameworks; Nanomaterials; Nanoporous Materials; Nanotechnology and Functional Materials;

    Abstract : Globally the combustion of fossil fuels has increased to a greater extent. Carbon dioxide (CO2) a major greenhouse gas isa by-product of such combustion practices. READ MORE

  4. 3. Material properties of recycled PET in beverage containers

    University essay from KTH/Fiber- och polymerteknologi

    Author : Anna Lund; [2021]
    Keywords : PET; Recycling; Tensile Testing; Material properties; Intrinsic viscosity; PET; återvinning; dragprovning; materialegenskaper; viskositet;

    Abstract : PET har under lång tid använts för flasktillverkning eftersom den är lätt, har goda barriäregenskaper och kan enkelt bearbetas industriellt. På senare tid har miljömedvetenheten ökat i samhället och därmed efterfrågan på återvunnet material, däribland PET-flaskor. Redan idag tillverkas flaskor med helt återvunnen PET. READ MORE

  5. 4. 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

  6. 5. Design of telechelic oligo-(caprolactone-co-dioxanone) as photocurable macromonomers for degradable gels

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

    Author : Tran Tam Nguyen; [2020]
    Keywords : macromonomers; ring-opening co-oligomerization; telechelic co-oligomers; polymer; organocatalyst; makromonomerer; ringöppning samoligomerisering; telekelisk samoligomer; organisk katalysator;

    Abstract : Three-dimensional (3D) printing has an important role for fabrication of degradable scaffoldsfor soft tissue regeneration. Among the 3D printing techniques, photopolymerization-based 3Dprinting is one of fastest growing, offering environmental benefits and high precision of 3Dobjects. READ MORE