Sökning: "expanded polystyrene"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden expanded polystyrene.

  1. 1. Bio-inspired cellulose nanocomposites and foams based on starch matrix

    Författare :Anna Svagan; Lars A. Berglund; Salvatore Iannace; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; starch; cellulose nanofibers; foam; nanocomposites; cushioning materials; biodegradable; expanded polystyrene; mechanical properties; diffusion; Polymer chemistry; Polymerkemi;

    Sammanfattning : In 2007 the production of expanded polystyrene (EPS) in the world was over 4 million tonnes and is expected to grow at 6 percent per year. With the increased concern about environmental protection, alternative biodegradable materials from renewable resources are of interest. LÄS MER

  3. 2. Fires in Narrow Construction Cavities : Fire Dynamics and Material Fire Performance

    Författare :Karlis Livkiss; Avdelningen för Brandteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fire; Ventilated façade; flame height; Stone wool; expanded polystyrene; Fire Dynamics Simulator FDS ;

    Sammanfattning : There have recently been devastating fire incidents related to fire spread over ventilated façades. These incidents indicate gaps in our understanding of the fire behaviour of façades. This thesis takes a bottom-up approach to investigating fire behaviour in materials and elements associated with narrow cavities in modern constructions. LÄS MER

  4. 3. Particle Deposition Studies in a Laminar Wall Jet - The Hydrodynamic Influence on the Kinetics of Colloidal Deposition

    Författare :Anders Göransson; Livsmedelsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; shielding function; surface blocking; total internal reflection microscopy; laminar wall jet; random sequential adsorption; colloidal deposition; Food and drink technology; Livsmedelsteknik;

    Sammanfattning : In the research area of cleaning and process hygiene it is important to understand the underlying mechanisms behind the deposition of particles and macromolecules onto surfaces. The deposition process is described as the transport of particles to the surface followed by attachment. LÄS MER

  5. 4. Foam, Fire and Free Volume - Chemical and Physical Aspects of Porous Polymers

    Författare :Anna Andersson; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Poisson ratio; vibration damping; acoustic impedance; cell morphology; hyperbranched polymer; Polymer foams; free volume; positron annihilation; supercritical fluid.;

    Sammanfattning : Automotive seating has been under continous development since it was described for the first time in 1885. At that time one could read about a “padded leather bench seat sitting on springs mounted directly to the frame of a horse-less carriage”. LÄS MER

  7. 5. Design, processing and properties of lightweight foams from cellulose nanofibers

    Författare :Korneliya Gordeyeva; Lennart Bergström; Nathalie Lavoine; Monica Österberg; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; cellulose nanofibers; lightweight foams; hybrid; Materials Chemistry; materialkemi;

    Sammanfattning : Foams are applied in many areas including thermal insulation of buildings, flotation devices, packaging, filters for water purification, CO2 sorbents and for biomedical devices. Today, the market is dominated by foams produced from synthetic, non-renewable polymers, which raises serious concerns for the sustainable and ecological development of our society. LÄS MER