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Xylan as Strength Enhancing Additive
KTH, School of Chemical Science and Engineering (CHE).
2012 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The effect of xylan from different plant species on tensile properties of spruce pulp was studied. Xylans from spruce, birch, wheat straw and rice husks were mixed with the fresh white liquor and added at the later stages of separate kraft cooks, in exchange of the black liquor removed from the system at that time.

Results show that xylans, from rice husk, wheat straw and birch, gave stronger pulps. However it was only possible to attach small quantities of xylans onto the fibers. Moreover, pulps containing birch and rice xylan were easier to beat than the other pulps in the study.

Place, publisher, year, edition, pages
2012. , 28 p.
Keyword [en]
Xylan, Kraft cooking, Tensile strength, Spruce wood, Agricultural waste
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-145861OAI: oai:DiVA.org:kth-145861DiVA: diva2:720752
Available from: 2014-06-02 Created: 2014-06-02 Last updated: 2014-06-02Bibliographically approved

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