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Interaction in cellulosic fiber-fiber joints at humid and wet conditions by AFM and confocal Raman microscopy
RISE - Research Institutes of Sweden, Bioscience and Materials, Surface, Process and Formulation. KTH Royal Institute of Technology, Sweden.ORCID iD: 0000-0002-6394-6990
PerkinElmer, USA.
2018 (English)Conference paper, Published paper (Refereed)
Abstract [en]

Interactions in fiber-fiber joints: • Interaction in crossed cellulosic fiber joints between was studied by atomic force colloidal probe microscopy (AFM) and mapping of surfaces and bonding sites using confocal Raman microspectroscopy (CRM) • CRM imaged surfaces and joints on thermomechanical pulp fibers, bleached pulp fibers and rayon fibers • Chemical and structural constituents relevant for bonding at high enough resolution can be imaged • Differences due to stresses or strains at, or close to, the fiber-fiber bonded area was detected but could not be evaluated. • Clean rayon fibers and bleached kraft pulp fibers, attached to an AFM cantilever and to the edge of an AFM chip, were brought in contact in a 90° crossed configuration • Forces measured in humid air and in water during approach and during retract • Bleached kraft pulp fiber-fiber joints can measured combined in adhesion and friction • Rayon fibers at different RH's give influence of capillary attraction at cross-points. Adhesion values significantly less than predicted by capillary attraction, due to roughness.

Place, publisher, year, edition, pages
2018. p. 64-73
Keywords [en]
Adhesion, Atomic force microscopy, Bleached pulp, Bleaching, Chemical bonds, Cleaning, Elasticity, Kraft pulp, Nanotechnology, Rayon, Structural design, Thermomechanical pulp, Thermomechanical pulping process, AFM cantilevers, Bleached kraft pulps, Capillary attraction, Cellulosic fibers, Colloidal probes, Confocal Raman microscopy, Confocal Raman microspectroscopy, Wet conditions, Fiber bonding
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-37714Scopus ID: 2-s2.0-85060450011ISBN: 9781510870369 (print)OAI: oai:DiVA.org:ri-37714DiVA, id: diva2:1284936
Conference
2018 TAPPI International Conference on Nanotechnology for Renewable Materials, 11 June 2018 through 14 June 2018
Available from: 2019-02-01 Created: 2019-02-01 Last updated: 2019-08-12Bibliographically approved

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Swerin, Agne

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CiteExportLink to record
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