Sökning: "Silica fibres"
Visar resultat 1 - 5 av 12 avhandlingar innehållade orden Silica fibres.
1. Polyelectrolyte adsorption on oppositely charged surfaces - Conformation and adsorption kinetics
Sammanfattning : Denna avhandling presenterar experimentella studier av polyelektrolytadsorption på motsatt laddade ytor, där substrat av både kiseloxid och blekt barrsulfatmassa har använts. Ett huvudsakligt syfte med denna forskning var att karaktärisera konformationen hos adsorberade skikt av katjonisk polyakrylamid (CPAM) i jämförelse med katjonisk dextran (Cdextran) och relatera denna information till inbindningskapaciteten av kolloidal kiselsyra. LÄS MER
2. Biofoams and Biocomposites based on Wheat Gluten Proteins
Sammanfattning : Novel uses of wheat gluten (WG) proteins, obtained e.g. as a coproduct from bio-ethanol production, are presented in this thesis. A flame-retardant foam was prepared via in-situ polymerization of hydrolyzed tetraethyl orthosilicate (TEOS) in a denatured WG matrix (Paper I). LÄS MER
3. Novel Chromatography Matrices for Fast Isolation of Plasmid DNA
Sammanfattning : As new therapeutic areas in which genetic material is employed, i.e. gene therapy and DNA vaccination, are expanding, a substantial increase in the demand for gene vectors, e.g. LÄS MER
4. Adsorption kinetics of cationic polyacrylamides on cellulose fibres and its influence on fibre flocculation
Sammanfattning : The adsorption of cationic polyacrylamide (C-PAM) and silicananoparticles onto a model surface of silicon oxide wascompared with the adsorption of C-PAM to fibres and theirinfluence on flocculation of a fibre suspension. An increase inionic strength affects the polyelectrolyte adsorption indifferent ways for these two systems. LÄS MER
5. Experimental investigation of energy transfer upconversion in densely Er+ doped silica fibres
Sammanfattning : .... LÄS MER