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C R Biol. 2004 Sep-Oct;327(9-10):873-80.

Micromechanical understanding of the cell-wall structure.

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STFI-Packforsk AB, SE-114 86 Stockholm, Sweden.


For improving properties of pulp fibres, a better understanding of the relationships between its macroscopic mechanical properties, fibre ultrastructure, and properties of the wood polymers is important. This paper discusses such relations between elastic properties of fibres, their matrix structure and the wood polymer elastic constants. It is argued that an orientation of all of the wood polymers in the direction of the cellulose microfibrils is most likely. The elastic longitudinal modulus of cellulose is well described by the value of 134 GPa dominating the longitudinal fibre properties. In the transverse direction the amorphous polymers play a more important role.

[Indexed for MEDLINE]

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