Sökning: "Cellulosa- och pappersteknik"
Visar resultat 16 - 20 av 61 avhandlingar innehållade orden Cellulosa- och pappersteknik.
16. Dynamic and Equilibrium Properties of Adsorbed Polyelectrolyte Layers
Sammanfattning : .... LÄS MER
17. Interaction between thin interfacial layers : the influence of polyelectrolyte multilayers on paper strength
Sammanfattning : .... LÄS MER
18. On the Interrelation Between Kraft Cooking Conditions and Pulp Composition
Sammanfattning : In the early 1990’s, a lot of work was focused on extending the kraft cook to a low lignin content (low kappa number). The driving force was the need to further reduce the environmental impact of the bleaching, as less delignification work would be needed there. LÄS MER
19. Polyelectrolyte Complexes : Their Characterization and use for Modification of Wood Fibre Surfaces
Sammanfattning : 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. LÄS MER
20. The effects of cellulosic fiber charges on polyelectrolyte adsorption and fiber-fiber interactions
Sammanfattning : 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. LÄS MER