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Measurement of the flexibility of wet cellulose fibres using atomic force microscopy
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.ORCID iD: 0000-0002-5444-7276
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology.
2017 (English)In: Cellulose (London), ISSN 0969-0239, E-ISSN 1572-882X, Vol. 24, no 10, p. 4139-4149Article in journal (Refereed) Published
Abstract [en]

Flexibility and modulus of elasticity data for two types of wet cellulose fibres using a direct force-displacement method by means of AFM are reported for never dried wet fibres immersed in water. The flexibilities for the bleached softwood kraft pulp (BSW) fibres are in the range of 4-38 x 10(12) N-1 m(-2) while the flexibilities for the thermomechanical pulp (TMP) fibres are about one order of magnitude lower. For BSW the modulus of elasticity ranges from 1 to 12 MPa and for TMP between 15-190 MPa. These data are lower than most other available pulp fibre data and comparable to a soft rubber band. Reasons for the difference can be that our measurements with a direct method were performed using never dried fibres immersed in water while other groups have employed indirect methods using pulp with different treatments.

Place, publisher, year, edition, pages
SPRINGER , 2017. Vol. 24, no 10, p. 4139-4149
Keywords [en]
Flexibility, Modulus of elasticity, AFM, Cellulose fibre
National Category
Polymer Technologies
Identifiers
URN: urn:nbn:se:kth:diva-215440DOI: 10.1007/s10570-017-1407-6ISI: 000410759600003Scopus ID: 2-s2.0-85025442559OAI: oai:DiVA.org:kth-215440DiVA, id: diva2:1150728
Note

QC 20171019

Available from: 2017-10-19 Created: 2017-10-19 Last updated: 2017-10-19Bibliographically approved

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Pettersson, TorbjörnHellwig, Johannes

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