Influence of fibre-fibre joint properties on the dimensional stability of paper
2008 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 15, no 4, 515-525 p.Article in journal (Refereed) Published
Measurements have been performed to clarify the connection between fibre-fibre joint properties and dimensional stability using laboratory sheets prepared from never-dried fibres, from heavily hornified fibres having a low molecular contact area between the fibres, and from both hornified and never-dried fibres treated with a polyelectrolyte multilayer (PEM) technique to increase the molecular contact area in the fibre-fibre joint. The influence of the drying mode, i.e. whether the sheets are dried freely or under restraint, was also evaluated. The results showed that neither paper strength nor fibre-fibre joint contact area had any significant influence on the dimensional stability of sheets dried under restraint. On the other hand, when the sheets were dried freely, the PEM-treated sheets expanded to the same extent as, or to an even greater extent than the non-PEM-treated sheets, even though they adsorbed less water for a given change in relative humidity. There was also a correlation between drying shrinkage and dimensional stability, where greater shrinkage was associated with a greater hygroexpansion in the freely dried sheets.
Place, publisher, year, edition, pages
2008. Vol. 15, no 4, 515-525 p.
dimensional stability, drying, hornification, hygroexpansion, multilayer, polyelectrolytes, shrinkage, STRENGTH PROPERTIES, CELLULOSIC FIBERS, WOOD FIBERS, SURFACE, HYGROEXPANSIVITY, WATER, PULP
IdentifiersURN: urn:nbn:se:kth:diva-12168DOI: 10.1007/s10570-008-9203-yISI: 000256909700002ScopusID: 2-s2.0-45949110424OAI: oai:DiVA.org:kth-12168DiVA: diva2:305239
QC 201506302010-03-232010-03-232015-06-30Bibliographically approved