Simona Ceccia

Laboratoire des Matériaux Avancés

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Pier Luca Maffettone

University of Naples Federico II

G. Camino

Polytechnic University of Turin

D. Tabuani

Consortium GARR

Jan Vermant

ETH Zurich

Dino Ferri

Eni (Italy)

Alberto Frache

Polytechnic University of Turin

Lise Trouillet‐Fonti

Solvay (France)

Orietta Monticelli

University of Genoa

Didier Long

Centre National de la Recherche Scientifique

Antonio Casale

Edison (Italy)

Cooperative Institutions

Polytechnic University of Turin

National Interuniversity Consortium of Materials Science and Technology

Centre National de la Recherche Scientifique

Laboratoire des Matériaux Avancés

Azienda Sanitaria Locale Alessandria

Solvay (France)

Solvay (Belgium)

University of Turin

Turin Polytechnic University

Industriale Chimica (Italy)

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Nanocomposite UV-cured coatings: Organoclay intercalation by an epoxy resin

Progress in Organic Coatings (2008)

Simona Ceccia Elisa Aurelia Turcato Pier Luca Maffettone Roberta Maria Bongiovanni

Thermosetting polymer

Organoclay

UV-Curing

10.1016/j.porgcoat.2008.04.012

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Citations (51)

Preparation of nanocomposites based on PP and PA6 by direct injection molding

Polymer Engineering and Science (2008)

Alberto Frache Orietta Monticelli Simona Ceccia Alessandro Brucellaria Antonio Casale

Abstract Nanocomposites based on polyamide 6 (PA6) and polypropylene (PP) have been prepared by melt compounding the above polymer matrices with two montmorillonite(MMT)‐type commercial organoclays which, from previous studies of ours and from some results reported in literature, resulted to be the most proper layered silicates to be dispersed in PP and PA6, respectively. The preparation of nanocomposites has followed two different approaches. In the first, melt blending was carried out by twin screw extrusion whereas, direct injection molding was used in the second method. X‐ray diffraction (WAXD) and transmission electron microscope (TEM) characterizations have evidenced that independently of the preparation approach, nanostructured material were obtained, which are intercalated in the case of PP and exfoliated in that of PA6. Also mechanical properties have demonstrated that nanocomposites prepared by applying the two methods were characterized by similar features. These findings demonstrate the effectiveness of direct injection molding in the preparation of nanocomposites, whose features are similar to those prepared by compounding. Indeed, the elongational deformation, applied in the former technique, might favor the clay dispersion in the polymer matrix. POLYM. ENG. SCI., 2008. © 2008 Society of Plastics Engineers

Compounding

Polypropylene

Molding (decorative)

10.1002/pen.21190

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Citations (15)

Quantifying dispersion of layered nanocomposites via melt rheology

Journal of Rheology (2007)

Jan Vermant Simona Ceccia Michail K. Dolgovskij Pier Luca Maffettone Christopher W. Macosko

Rheological measurements are used to compare clay nanocomposites prepared through melt mixing using two different polypropylene matrices. Steady state and transient nonlinear rheological experiments are employed to separate the contributions of flow induced orientation of the tactoids and particulate network build-up. The conditions under which the rheological properties are dominated by the aggregate network are subsequently identified. Under these conditions, the low frequency linear viscoelastic behavior is analyzed using scaling concepts for fractal networks to determine the degree of network formation by exfoliation. Moreover, the high frequency behavior of the moduli can be used to quickly assess the dispersion quality. The results from the analysis of the linear viscoelastic data are compared to structural features extracted from electron microscopy and small angle X-ray scattering data.

Exfoliation joint

10.1122/1.2516399

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Citations (261)

Influence of pressure on polyamide 66 shear viscosity: a case study towards polar polymers behavior

Rheologica Acta (2014)

Simona Ceccia Clio Cocquet Lise Trouillet‐Fonti Didier Long

Inherent viscosity

Reduced viscosity

Time–temperature superposition

10.1007/s00397-013-0753-z

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Citations (9)

Nylon‐6 nanocomposites, study of the influence of the nanofiller nature on morphology and material properties

Journal of Polymer Science Part B Polymer Physics (2009)

D. Tabuani Simona Ceccia Giovanni Camino

Abstract In this article we investigated the influence of various nanofilllers' aspect ratio, chemical nature, and organic modification on some selected nylon‐6 properties, such as crystallinity, thermal and mechanical resistance, and fire behavior. Materials were prepared by twin‐screw extrusion and characterized by means of scanning and transmission electron microscopy, X‐ray diffraction, thermogravimetric analysis, tensile tests, and cone calorimeter. Fillers characteristics were found to influence at different extents the material final properties. © 2009 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 47: 1935–1948, 2009

Thermogravimetric analysis

Nylon 6

Morphology

Nylon 66

Cone calorimeter

10.1002/polb.21795

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Citations (12)

CRYSTALLIZATION BEHAVIOUR OF ORGANOCLAY REINFORCED POLYPROPYLENE

Emilia Gioffredi Simona Ceccia G. Camino Pier Luca Maffettone

Organoclay

Polypropylene