Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 419528
Title A statistical analysis of fibre size and shape distribution after compounding in composites reinforced by natural fibres
Author(s) Moigne, N. Le; Oever, M.J.A. van den; Budtova, T.
Source Composites Part A: Applied Science and Manufacturing 42 (2011)10. - ISSN 1359-835X - p. 1542 - 1550.
Department(s) FBR BP Biorefinery & Natural Fibre Technology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) flax straw fibers - mechanical-properties - polypropylene composites - polymers - length - orientation - wheat - microstructure - morphology - strength
Abstract Using high resolution optical microscopy coupled with image analysis software and statistical methods, fibre length and aspect ratio distributions in polypropylene composites were characterized. Three types of fibres, flax, sisal and wheat straw, were studied. Number and surface weighted distributions were used to demonstrate the presence and amount of elementary fibres, fibre bundles and particles. A large number of small particles that are usually not taken into account were found. The obtained fibre length and aspect ratio distributions were successfully fitted by a two-parameter Weibull model. No significant effect of fibre concentration on the length and aspect ratio distributions was detected for 20% and 40% flax-based composite. Fibre type was found to be a very important parameter influencing size and shape distributions: flax is broken into long elementary fibres, sisal-based composite contains non-dispatched bundles and elementary fibres and wheat straw-based composite has bundles and large and small particles.
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