Reference : Extrusion foaming of poly(styrene-co-acrylonitrile)/ clay nanocomposites using supercrit...
Scientific journals : Article
Physical, chemical, mathematical & earth Sciences : Chemistry
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/75753
Extrusion foaming of poly(styrene-co-acrylonitrile)/ clay nanocomposites using supercritical CO2
English
Urbanczyk, Laetitia [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Alexandre, Michaël [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Detrembleur, Christophe mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Jérôme, Christine mailto [University of Liège (ULg) > Department of Chemistry > Center for Education and Research on Macromolecules (CERM) > >]
Calberg, Cédric [University of Liège (ULg) > Department of Applied Chemistry > Laboratory of Industrial Chemistry > >]
12-Oct-2010
Macromolecular Materials and Engineering
295
10
915-
Yes
International
38-7492
[en] green technology ; supercritical carbon dioxide ; foam ; nanostructured materials ; nanocomposite ; clay
[en] Supercritical CO2 has been used as a blowing agent to foam poly(styrene-co-acrylonitrile)-based materials in a single screw extruder specially adapted to allow fluid injection. The cellular morphology depends on foaming temperature, more regular cells being obtained with decreasing extrusion temperature. In a second step, a natural and an organomodified nanoclay have been added for the purpose of imparting some flame resistance to the foamed material. The filler efficiency in reducing sample combustion rate appeared to be dependent on its delamination level inside the matrix and better results were obtained when the organomodified clay was first delaminated in the polymer in an efficient twin screw extruder using water assistance, prior to foaming in the single screw extruder.
Center for Education and Research on Macromolecules (CERM)
Politique Scientifique Fédérale (Belgique) = Belgian Federal Science Policy ; Fonds de la Recherche Scientifique (Communauté française de Belgique) - F.R.S.-FNRS ; The "Région Wallonne" in the frame of the WINNOMAT program
Researchers
http://hdl.handle.net/2268/75753
10.1002/mame.201000078
http://onlinelibrary.wiley.com/doi/10.1002/mame.201000078/pdf

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