Search for dissertations about: "CATIONIC POLYELECTROLYTE"
Showing result 1 - 5 of 45 swedish dissertations containing the words CATIONIC POLYELECTROLYTE.
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1. Polyelectrolyte complexes : their preparation, adsorption behaviour and effect on paper properties
Abstract : In this work, the formation of polyelectrolyte complexes (PECs) has been studied using a jet mixing method not previously used for mixing polyelectrolytes. The PECs were formed from two weak polyelectrolytes, i.e. READ MORE
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2. Polyelectrolyte adsorption on oppositely charged surfaces - Conformation and adsorption kinetics
Abstract : 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. READ MORE
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3. Polyelectrolyte Complexes : Their Characterization and use for Modification of Wood Fibre Surfaces
Abstract : For economical reasons filler particles and less expensive fibre raw materials are more frequently used in papermaking. This influences the mechanical properties of the formed papers in a negative way and it is therefore necessary to add strength-enhancing agents to the papermaking furnish. READ MORE
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4. The effects of cellulosic fiber charges on polyelectrolyte adsorption and fiber-fiber interactions
Abstract : The surface charges of cellulosic fibers contribute to several papermaking operations that influence the manufacture and final properties of paper. This thesis investigates the effect of the surface charges on wet-end chemistry, e.g. READ MORE
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5. Interaction between Crosslinked Polyelectrolyte Gels and Oppositely Charged Surfactants
Abstract : The interactions between anionic, crosslinked gels and cationic surfactants have been investigated. When exposed to oppositely charged surfactant, the gel collapses into a dense complex of polyion and micelles. READ MORE