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Erschienen in: Cellulose 1/2017

22.10.2016 | Original Paper

Ageing of fibre-laden aqueous foams

verfasst von: Benjamin Haffner, Friedrich F. Dunne, Steven R. Burke, Stefan Hutzler

Erschienen in: Cellulose | Ausgabe 1/2017

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Abstract

Fibre-laden liquid foams are used in the production process of novel non-woven fibrous materials, employed for example for thermal or acoustic insulation. Here we present an experimental investigation of the stability of such foams. We find that on a time-scale of a few minutes the presence of fibres does not alter the drainage properties of the foam. On a longer time-scale fibres slow down drainage, mainly due to their slowing down of coarsening. The drying of our aged samples leads to a fibre network with a fibre concentration profile that appears to be determined by gravity. Our experiments were performed using fibre concentrations of a few percent, as relevant also to the foam-laid forming of paper, where aqueous foam instead of water is used as a carrier medium for fibres .

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Metadaten
Titel
Ageing of fibre-laden aqueous foams
verfasst von
Benjamin Haffner
Friedrich F. Dunne
Steven R. Burke
Stefan Hutzler
Publikationsdatum
22.10.2016
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 1/2017
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-016-1100-1

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