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First characterization of the development of bleached kraft softwood pulp fiber interfaces during drying and rewetting using FRET microscopy

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Published/Copyright: May 19, 2008
Holzforschung
From the journal Volume 62 Issue 4

Abstract

Cellulosic fiber interfaces are critical to the material properties of paper. Likewise, the presence of water in a paper sheet is an important property, because paper is a wet-laid structure and the cellulosic fibers that compose it are hygroscopic. This work uses a fluorescence microscopy technique established by the authors to study the development of individual bleached kraft pulp fiber crossings in situ during drying and through a cycle of rewetting and wet pressing. The results indicate that coalescence of the fiber-fiber interface occurs during drying and that the fluorescence resonance energy transfer (FRET) response, which is proportional to the distance between fiber components, increases logarithmically with time. The FRET signal of once-dried fiber crossings increases dramatically after rewetting and wet pressing for a second time. This indicates that fiber bonds are still compliant after a single drying cycle and that the interactions between fiber components are likely reversible at the solids content present in bleached kraft pulp fiber crossings dried at 25°C and 50% relative humidity.

Keywords: bleached kraft softwood pulp; cellulose fibers; fiber bonding; fluorescence microscopy; fluorescence resonance energy transfer (FRET); material interfaces; papermaking; water removal
Corresponding author. School of Chemistry and Biochemistry, Georgia Institute of Technology, 500 10th Street NW, Atlanta, GA 30332-0620, USA Phone: +1-404-894-9701 Fax: +1-404-894-4778
Received: 2007-5-8
Accepted: 2008-2-4
Published Online: 2008-05-19
Published Online: 2008-05-19
Published in Print: 2008-07-01

©2008 by Walter de Gruyter Berlin New York

Articles in the same Issue

  1. Original Papers
  2. Alkaline-sulfite chemithermomechanical pulping of Eucalyptus grandis biotreated by Ceriporiopsis subvermispora under varied culture conditions
  3. First characterization of the development of bleached kraft softwood pulp fiber interfaces during drying and rewetting using FRET microscopy
  4. The fate of phosphorus in the bleaching of spruce TMP with the new bleaching agent – THPS
  5. Dynamics of the effective capillary cross-sectional area during the alkaline impregnation of eucalyptus wood
  6. Wood solubilization and depolymerization using supercritical methanol. Part 1: Process optimization and analysis of methanol insoluble components (bio-char)
  7. Wood solubilization and depolymerization by supercritical methanol. Part 2: Analysis of methanol soluble compounds
  8. Composition of callus resin of Norway spruce, Scots pine, European larch and Douglas fir
  9. The reduction in the fibre saturation point of wood due to chemical modification using anhydride reagents: A reappraisal
  10. Water absorption thermodynamics in single wood pellets modelled by multivariate near-infrared spectroscopy
  11. A survey of moisture distribution in two sets of Scots pine logs by NIR-spectroscopy
  12. Identification of selected log characteristics from computed tomography images of sugar maple logs using maximum likelihood classifier and textural analysis
  13. Compressive stress-strain properties of natural materials treated with aqueous NaOH
  14. Profile production in multi-veneer sheets by continuous roll forming
  15. Evaluation on structural performance of compressed wood as shear dowel
  16. Wood-adhesive interactions in a PVAc latex
  17. A comprehensive analysis of the relation of cellulose microfibril orientation and lignin content in the S2 layer of different tissue types of spruce wood (Picea abies (L.) Karst.)
  18. Micromorphological characteristics and lignin distribution in bamboo (Phyllostachys pubescens) degraded by the white rot fungus Lentinus edodes
  19. Synthesis of ethylene maleic anhydride copolymer containing fungicides and evaluation of their effect for wood decay resistance
  20. Short Notes
  21. Plasma treatment of heat treated beech wood – investigation on surface free energy
  23. Meetings
https://doi.org/10.1515/HF.2008.069
Keywords for this article
bleached kraft softwood pulp; cellulose fibers; fiber bonding; fluorescence microscopy; fluorescence resonance energy transfer (FRET); material interfaces; papermaking; water removal

Articles in the same Issue

  1. Original Papers
  2. Alkaline-sulfite chemithermomechanical pulping of Eucalyptus grandis biotreated by Ceriporiopsis subvermispora under varied culture conditions
  3. First characterization of the development of bleached kraft softwood pulp fiber interfaces during drying and rewetting using FRET microscopy
  4. The fate of phosphorus in the bleaching of spruce TMP with the new bleaching agent – THPS
  5. Dynamics of the effective capillary cross-sectional area during the alkaline impregnation of eucalyptus wood
  6. Wood solubilization and depolymerization using supercritical methanol. Part 1: Process optimization and analysis of methanol insoluble components (bio-char)
  7. Wood solubilization and depolymerization by supercritical methanol. Part 2: Analysis of methanol soluble compounds
  8. Composition of callus resin of Norway spruce, Scots pine, European larch and Douglas fir
  9. The reduction in the fibre saturation point of wood due to chemical modification using anhydride reagents: A reappraisal
  10. Water absorption thermodynamics in single wood pellets modelled by multivariate near-infrared spectroscopy
  11. A survey of moisture distribution in two sets of Scots pine logs by NIR-spectroscopy
  12. Identification of selected log characteristics from computed tomography images of sugar maple logs using maximum likelihood classifier and textural analysis
  13. Compressive stress-strain properties of natural materials treated with aqueous NaOH
  14. Profile production in multi-veneer sheets by continuous roll forming
  15. Evaluation on structural performance of compressed wood as shear dowel
  16. Wood-adhesive interactions in a PVAc latex
  17. A comprehensive analysis of the relation of cellulose microfibril orientation and lignin content in the S2 layer of different tissue types of spruce wood (Picea abies (L.) Karst.)
  18. Micromorphological characteristics and lignin distribution in bamboo (Phyllostachys pubescens) degraded by the white rot fungus Lentinus edodes
  19. Synthesis of ethylene maleic anhydride copolymer containing fungicides and evaluation of their effect for wood decay resistance
  20. Short Notes
  21. Plasma treatment of heat treated beech wood – investigation on surface free energy
  23. Meetings
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