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Erschienen in: Cellulose 9/2019

14.05.2019 | Original Research

Production of fire-retardant phosphorylated cellulose fibrils by twin-screw extrusion with low energy consumption

verfasst von: Fleur Rol, Naceur Belgacem, Valérie Meyer, Michel Petit-Conil, Julien Bras

Erschienen in: Cellulose | Ausgabe 9/2019

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Abstract

Phosphorylated cellulose nanofibrils (CNFs) were produced using a twin-screw extruder (TSE). The energy efficiency was compared with that of an ultra-fine grinder (UFG). CNFs at different solid contents were produced (10 wt% for the TSE and 2 wt% for the UFG), and their quality was compared using several characterization tests, such as optical microscopy, atomic force microscopy or MorFi fiber analyser. CNF nanopapers with high a Young’s modulus (14 GPa) and high transparency were successfully manufactured using CNFs produced by the TSE. The efficiency of the TSE was improved by using phosphorylated pulp instead of mechano-enzymatically treated pulp. The results show that phosphorylated CNFs can be easily produced at the industrial scale via twin-screw extrusion and present new functionalities such as fire-retardant properties, which are useful in many applications.

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Metadaten
Titel
Production of fire-retardant phosphorylated cellulose fibrils by twin-screw extrusion with low energy consumption
verfasst von
Fleur Rol
Naceur Belgacem
Valérie Meyer
Michel Petit-Conil
Julien Bras
Publikationsdatum
14.05.2019
Verlag
Springer Netherlands
Erschienen in
Cellulose / Ausgabe 9/2019
Print ISSN: 0969-0239
Elektronische ISSN: 1572-882X
DOI
https://doi.org/10.1007/s10570-019-02447-4

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