The influence of lignin and xylan on some kraftliner pulp properties
2009 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, Vol. 24, no 4, 403-408 p.Article in journal (Refereed) Published
This study investigates the influence of lignin and hemicellulose content on the mechanical and physical properties of softwood kraft liner pulp. Tensile properties, hygroexpansion, and mechano-sorptive creep properties were measured. The lignin and hemicellulose contents were modified by chlorite delignification and xylanase treatment.
After treatment, the chemical composition of the pulps was 3-14% Klason lignin, 69-77% cellulose, 16-21% hemicellulose, and 4-7% xylan. In the tested pulps, low lignin content tended to decrease hygroexpansion as well as increase tensile stiffness and mechano-sorptive creep stiffness. Xylan contributed less to the pulp sheet properties, but at equal lignin contents, higher xylan content tended to give increased hygroexpansion and worse mechano-sorptive creep properties.
Place, publisher, year, edition, pages
2009. Vol. 24, no 4, 403-408 p.
Xylan; Lignin; Tensile stiffness; Hygroexpansion; Mechano-sorptive creep; Kraftliner pulp; Softwood; EDGEWISE COMPRESSION CREEP; ELASTIC-MODULUS; MECHANOSORPTIVE CREEP; ALDITOL ACETATES; FIBERS; PAPER; STRENGTH; COOKING
Paper, Pulp and Fiber Technology
IdentifiersURN: urn:nbn:se:kth:diva-9714ISI: 000273724200005ScopusID: 2-s2.0-76349089739OAI: oai:DiVA.org:kth-9714DiVA: diva2:127110
QC 201006292008-12-012008-12-012010-07-06Bibliographically approved