The importance of xylan for the strength properties of spruce kraft pulp fibres

Christa Schonberg, Tarja Oksanen, Anna Suurnäkki, H. Kettunen, Johanna Buchert

Research output: Contribution to journalArticleScientificpeer-review

104 Citations (Scopus)

Abstract

In this work the role of xylan in spruce kraft pulp fibres was investigated by selectively removing the pulp fibre xylan and also by sorbing xylan onto the pulp fibres. The effects of xylan removal and sorption on fibre properties were measured and the chemical composition of the fibres and also that of the selectively removed xylans was analyzed. According to the results the xylanase could act on both sorbed and native xylan located on accessible fibre surfaces.

Xylan was found to affect the strength properties of handsheets. The location and the charge of xylan had a considerable impact on the formation of interfibre bonds. Scott Bond-values correlated with the amount of surface xylan on fibre surfaces, whereas tensile strength was affected by the total amount of xylan and particularly by the total charge of the fibres. The fracture energy was determined by the combined effect of interfibre bonding ability and effective fibre length.
Original languageEnglish
Pages (from-to)639-644
Number of pages6
JournalHolzforschung
Volume55
Issue number6
DOIs
Publication statusPublished - 2001
MoE publication typeA1 Journal article-refereed

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Xylans
Kraft pulp
Fibers
Pulp
Fracture energy
Sorption
Tensile strength

Cite this

Schonberg, C., Oksanen, T., Suurnäkki, A., Kettunen, H., & Buchert, J. (2001). The importance of xylan for the strength properties of spruce kraft pulp fibres. Holzforschung, 55(6), 639-644. https://doi.org/10.1515/HF.2001.104
Schonberg, Christa ; Oksanen, Tarja ; Suurnäkki, Anna ; Kettunen, H. ; Buchert, Johanna. / The importance of xylan for the strength properties of spruce kraft pulp fibres. In: Holzforschung. 2001 ; Vol. 55, No. 6. pp. 639-644.
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Schonberg, C, Oksanen, T, Suurnäkki, A, Kettunen, H & Buchert, J 2001, 'The importance of xylan for the strength properties of spruce kraft pulp fibres', Holzforschung, vol. 55, no. 6, pp. 639-644. https://doi.org/10.1515/HF.2001.104

The importance of xylan for the strength properties of spruce kraft pulp fibres. / Schonberg, Christa; Oksanen, Tarja; Suurnäkki, Anna; Kettunen, H.; Buchert, Johanna.

In: Holzforschung, Vol. 55, No. 6, 2001, p. 639-644.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - The importance of xylan for the strength properties of spruce kraft pulp fibres

AU - Schonberg, Christa

AU - Oksanen, Tarja

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AU - Buchert, Johanna

PY - 2001

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AB - In this work the role of xylan in spruce kraft pulp fibres was investigated by selectively removing the pulp fibre xylan and also by sorbing xylan onto the pulp fibres. The effects of xylan removal and sorption on fibre properties were measured and the chemical composition of the fibres and also that of the selectively removed xylans was analyzed. According to the results the xylanase could act on both sorbed and native xylan located on accessible fibre surfaces.Xylan was found to affect the strength properties of handsheets. The location and the charge of xylan had a considerable impact on the formation of interfibre bonds. Scott Bond-values correlated with the amount of surface xylan on fibre surfaces, whereas tensile strength was affected by the total amount of xylan and particularly by the total charge of the fibres. The fracture energy was determined by the combined effect of interfibre bonding ability and effective fibre length.

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DO - 10.1515/HF.2001.104

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JO - Holzforschung

JF - Holzforschung

SN - 0018-3830

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Schonberg C, Oksanen T, Suurnäkki A, Kettunen H, Buchert J. The importance of xylan for the strength properties of spruce kraft pulp fibres. Holzforschung. 2001;55(6):639-644. https://doi.org/10.1515/HF.2001.104