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  Effects of moisture and cellulose fibril angle on the tensile properties of native single Norway spruce wood fibres

Horbelt, N., Dunlop, J., Bertinetti, L., Fratzl, P., & Eder, M. (2021). Effects of moisture and cellulose fibril angle on the tensile properties of native single Norway spruce wood fibres. Wood Science and Technology, 55(5), 1305-1318. doi:10.1007/s00226-021-01315-4.

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 Creators:
Horbelt, Nils1, Author           
Dunlop, John, Author
Bertinetti, Luca2, Author           
Fratzl, Peter3, Author           
Eder, Michaela1, Author           
Affiliations:
1Michaela Eder, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863293              
2Luca Bertinetti, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_2379691              
3Peter Fratzl, Biomaterialien, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863294              

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 Abstract: Isolated single wood fibres with cellulose fibril angles from 10 to 43° were tested in microtensile tests under controlled temperature and relative humidity of 5, 50, 75, 90% and in the wet state. This systematic study provides experimental stiffness and strength data, calculated on cell wall cross sections. It has been shown that stiffness reduction with increasing moisture content is more pronounced in fibres with large cellulose fibril angles. Interestingly, stiffness reduction in fibres with low cellulose fibril angles has been observed for the fully hydrated state only. The experimental dataset was fed into a model to determine moisture dependent stiffness of the hemicellulose-lignin-matrix and the stresses acting on the fibrils and the matrix.

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Language(s): eng - English
 Dates: 2021-07-052021
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.1007/s00226-021-01315-4
PMID: 0612
Other: M:\BM-Publications\2021\HorbeltWST_SingleFibre
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Title: Wood Science and Technology
Source Genre: Journal
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Publ. Info: Berlin : Springer-Verlag
Pages: - Volume / Issue: 55 (5) Sequence Number: - Start / End Page: 1305 - 1318 Identifier: ISSN: 0043-7719