Sökning: "paper strength"
Visar resultat 36 - 40 av 564 avhandlingar innehållade orden paper strength.
36. The Influence of Molecular Adhesion on Paper Strength
Sammanfattning : This thesis deals with the influence of molecular adhesion on paper strength. By combining the use of high-resolution techniques and silica/cellulose surfaces, with various fibre–fibre and sheet testing techniques, new information regarding the molecular mechanisms responsible for paper strength has been obtained. LÄS MER
37. Aspects on Strenght Delivery and Higher Utilisation of the Strength Potential of Kraft Pulp Fibres
Sammanfattning : Studies on strength delivery and related fields have so far concentrated on finding the locations in the mill where fibres are damaged and what the damages consist of. However, fibres will invariably encounter mechanical stresses along the fibreline and in this thesis a new concept is introduced; the vulnerability of fibres to mechanical treatment. LÄS MER
38. The use of carboxymethyl cellulose in papermaking; aspects on process integration and strength-enhancing mechanisms
Sammanfattning : .... LÄS MER
39. Micro-mechanical characterization and modeling of paper and paperboard
Sammanfattning : Fiber networks made of cellulose fibers from trees are used as information carriers (paper) and as packaging (paperboard). This thesis investigates the mechanical performance of paper and paperboard via micro-mechanical modeling and presents new methods for the mechanical characterization of the micro scale, necessary in such models. LÄS MER
40. Influence of adsorbed polyelectrolytes and adsorption conditions on creep properties of paper sheets made from unbleached kraft pulp
Sammanfattning : Papper uppvisar betydande tidsberoende mekaniska egenskaper som krypning och spänningsrelaxation. Det är känt att krypningen hos pappret påverkar till exempel en wellpapplådas förmåga att bära last under lång tid. En möjlighet att tillverka papper som kryper långsammare är därför önskvärd. LÄS MER