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Investigation of the internal structure of flax fibre cell walls by transmission electron microscopy

Abstract : The development of the use of flax fibre as reinforcement of eco-friendly composite materials requires a good knowledge of its hydrothermal and mechanical behaviours. To this end the fibre internal structure must be finely investigated. Transmission electron microscopy was used to analyse the morphology of the fibre cell walls in terms of the arrangement of the layers and their thickness. Thus, an alternative eco-friendly staining method, based on oolong tea extract was successfully implemented. The results reveal an arrangement at the nanoscale slightly different from the classical four layer model encountered in the literature the inner layer includes three to four sub-layers. The cell walls comprises two outer layers of relative thickness of about 10 %, a middle layer of about 70 % and a group of thinner layers (called sub-layers) that are contiguous to the lumen with relative thickness of about 20 %. © 2015, Springer Science+Business Media Dordrecht.
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Submitted on : Monday, July 15, 2019 - 6:05:04 PM
Last modification on : Monday, May 25, 2020 - 4:02:04 PM

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Anthony Thuault, B. Domengès, I. Hervas, M. Gomina. Investigation of the internal structure of flax fibre cell walls by transmission electron microscopy. Cellulose, 2015, 22 (6), pp.3521-3530. ⟨10.1007/s10570-015-0744-6⟩. ⟨hal-02184130⟩

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