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The role of surface polymer compability in the formation of fiber/fiber bonds in paper
2000 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 15, no 5, 400-406 p.Article in journal (Refereed) Published
Abstract [en]

The tensile strength of unbeaten kraft pulp handsheets was measured as a function of the compatibility of polymers adsorbed on the fibers. Two types of fibers were prepared, one was treated with slightly cationic dextran and the second was treated with slightly hydrophobic cationic dextran. The dextrans were chosen because both are paper strength enhancing polymers and yet they are incompatible with each other. Either dextran alone significantly enhanced paper strength whereas sheets made with mixtures were weaker. The results are interpreted in terms of the polymer compatibility. When a fiber/fiber bond forms between two surfaces bearing incompatible adsorbed polymers, the polymers will not interdiffuse during sheet consolidation thus giving a relatively weak interfiber bond.

Place, publisher, year, edition, pages
2000. Vol. 15, no 5, 400-406 p.
Keyword [en]
polymer compatibility, surface properties of fiber, tensile strength, page equation, strength enhancing polymer, Dextran, strength, mixtures
Identifiers
URN: urn:nbn:se:kth:diva-20486ISI: 000167751400011OAI: oai:DiVA.org:kth-20486DiVA: diva2:339181
Note
QC 20100525Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2017-12-12Bibliographically approved

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Wågberg, Lars

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