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The influence of refining heterogeneity on paper properties
RISE - Research Institutes of Sweden, Bioeconomy.
RISE - Research Institutes of Sweden, Bioeconomy.
2019 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 14, no 3, p. 6577-6590Article in journal (Refereed) Published
Abstract [en]

This paper studies the impact of refining heterogeneity on paper property development and pressability. Three trials were performed in different refining equipment. The results showed that the strength development was due mostly to the water retention value (WRV) and the fiber straightness. Curly fibers require more energy to reach a given strength property. A heterogeneous refining, which in this case was performed by mixing less refined and highly refined pulps in different proportions, increased the energy requirement to reach a given tensile index or tensile stiffness index. The pressability of the pulps was not affected by the refining heterogeneity. At a given WRV, the pulp had the same solids content after dynamic pressing independent of the degree of heterogeneity.

Place, publisher, year, edition, pages
North Carolina State University , 2019. Vol. 14, no 3, p. 6577-6590
Keywords [en]
Heterogeneity', Paper properties, Pressing, Raining, Pressing (forming), Pulp, Refining, Different proportions, Energy requirements, Heterogeneity, Strength development, Tensile stiffness indices, Water retention value, Pulp refining, Development, Energy, Straightness
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-42500DOI: 10.15376/biores.l4.3.6577-6590Scopus ID: 2-s2.0-85076489848OAI: oai:DiVA.org:ri-42500DiVA, id: diva2:1384426
Available from: 2020-01-09 Created: 2020-01-09 Last updated: 2020-01-09Bibliographically approved

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