The effect of wood components on the adhesive properties of cellulosic materials

Janne Laine, P Stenius, A Suurnakki, P Claesson

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

1 Citation (Scopus)

Abstract

The effect carbohydrates and extractives on the bonding properties of TCF-bleached softwood kraft fibers in paper was investigated. A surface force apparatus (SFA) was used to measure the interactions between model cellulose surfaces in air, and between low and high charge density xylan surfaces in aqueous solutions. When xylan is adsorbed from an aqueous solution with low ionic strength (1mM KBr), the range of the repulsive forces and, hence, the swelling of the polymer layers depend strongly on the charge density of the polymer, i.e. the higher the charge density the greater the swelling. At higher salt concentrations the interaction forces do not depend markedly on the uronic acid content of the xylans. Both the SFA measurements and the measurements of the paper sheet strength indicate that surface carbohydrates and extractives influence fiber/fiber bonding. Thus, extractives have a negative and carbohydrates a positive impact on the bonding properties of fibers.

Original languageEnglish
Title of host publicationISWPC - 9TH INTERNATIONAL SYMPOSIUM ON WOOD AND PULPING CHEMISTRY - ORAL PRESENTATIONS
PagesO31-O35
Number of pages5
Publication statusPublished - 1997
MoE publication typeA4 Article in a conference publication
EventInternational Symposium on Wood and Pulping Chemistry - Montreal, Canada
Duration: 9 Jun 199712 Jun 1997
Conference number: 9

Conference

ConferenceInternational Symposium on Wood and Pulping Chemistry
Abbreviated titleISWPC
CountryCanada
CityMontreal
Period09/06/199712/06/1997

Keywords

  • cellulose adhesion of
  • cellulosic materials
  • fibers cellulosic

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