Reference : Morphology and properties of SAN-clay nanocomposites prepared principally by water-as...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/20345
Morphology and properties of SAN-clay nanocomposites prepared principally by water-assisted extrusion
English
Mainil, Michaël [Université catholique de Louvain (UCL) > Department of Chemistry and Physics of High Polymers (POLY) > > >]
Urbanczyk, Laetitia [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Calberg, Cédric mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
Germain, Albert mailto [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Bourbigot, Serge [Villeneuve d'Asq, France > > Equipe des Procédés d’Elaboration de Revêtements Fonctionnels, LSPES UMR-CNRS 8008 > >]
Devaux, Jacques [Université catholique de Louvain (UCL) > Department of Chemistry and Physics of High Polymers (POLY) > > >]
Sclavons, Michel [Université catholique de Louvain (UCL) > Department of Chemistry and Physics of High Polymers (POLY) > > >]
Jan-2010
Polymer Engineering & Science
John Wiley & Sons, Inc. - Engineering
50
1
10-21
Yes (verified by ORBi)
International
0032-3888
[en] nanostructured material ; nanocomposite ; clay ; flame retardancy
[en] An efficient extrusion process involving the injection of water while processing was used to prepare poly(styrene-co-acrylonitrile) (SAN) / clay nanocomposites with a high degree of nanoclay delamination. The usefulness of water-assisted extrusion is highlighted here, in comparison with classical extrusion and roll mill processes. Cloisite® 30B (C30B), a montmorillonite clay organomodified with alkylammonium cations bearing 2-hydroxyethyl chains, and pristine montmorillonite were melt blended with SAN (25wt% AN) in a semi-industrial scale extruder specially designed to allow water injection. XRD analysis, visual and TEM observations were used to evaluate the quality of clay dispersion. The relationship between the nanocomposite morphology and its mechanical and thermal properties was then investigated. The superiority of the SAN/C30B nanocomposite extruded with water has been evidenced by cone calorimetry tests and thermogravimetric measurements (TGA). These analyses showed a substantial improvement of the fire behavior and the thermal properties, while a 20% increase of the Young modulus was recorded.
Center for Education and Research on Macromolecules (CERM)
Researchers
http://hdl.handle.net/2268/20345
10.1002/pen.21501
http://www3.interscience.wiley.com/cgi-bin/fulltext/122578604/PDFSTART

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