Influence of the surface modification of alumina nanoparticles on the thermal stability and fire reaction of PMMA composites
Nicolas Cinausero
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Search for more papers by this authorNathalie Azema
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Search for more papers by this authorMarianne Cochez
Département Chimie de l'IUT de Moselle-Est, Université Paul Verlaine-Metz, Laboratoire MOPS, UMR CNRS 7132, 12 rue Victor Demange, 57500 Saint-Avold, France
Search for more papers by this authorMichel Ferriol
Département Chimie de l'IUT de Moselle-Est, Université Paul Verlaine-Metz, Laboratoire MOPS, UMR CNRS 7132, 12 rue Victor Demange, 57500 Saint-Avold, France
Search for more papers by this authorMohamed Essahli
Institut Charles Gerhardt, UMR5253 CNRS/UM2/ENSCM/UM1, Equipe Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier cedex, France
Laboratoire des Procédés de Valorisation des ressources Naturelles, des Matériaux et Environnement, Faculté des Sciences et Techniques de Settat, Km 3, route Casablanca, BP:577, 26000 Settat (Maroc), France
Search for more papers by this authorFrançois Ganachaud
Institut Charles Gerhardt, UMR5253 CNRS/UM2/ENSCM/UM1, Equipe Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier cedex, France
Search for more papers by this authorCorresponding Author
José-Marie Lopez-Cuesta
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières 30319 ALES Cedex, France.Search for more papers by this authorNicolas Cinausero
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Search for more papers by this authorNathalie Azema
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Search for more papers by this authorMarianne Cochez
Département Chimie de l'IUT de Moselle-Est, Université Paul Verlaine-Metz, Laboratoire MOPS, UMR CNRS 7132, 12 rue Victor Demange, 57500 Saint-Avold, France
Search for more papers by this authorMichel Ferriol
Département Chimie de l'IUT de Moselle-Est, Université Paul Verlaine-Metz, Laboratoire MOPS, UMR CNRS 7132, 12 rue Victor Demange, 57500 Saint-Avold, France
Search for more papers by this authorMohamed Essahli
Institut Charles Gerhardt, UMR5253 CNRS/UM2/ENSCM/UM1, Equipe Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier cedex, France
Laboratoire des Procédés de Valorisation des ressources Naturelles, des Matériaux et Environnement, Faculté des Sciences et Techniques de Settat, Km 3, route Casablanca, BP:577, 26000 Settat (Maroc), France
Search for more papers by this authorFrançois Ganachaud
Institut Charles Gerhardt, UMR5253 CNRS/UM2/ENSCM/UM1, Equipe Ingénierie et Architectures Macromoléculaires, Ecole Nationale Supérieure de Chimie de Montpellier, 8 Rue de l'Ecole Normale, 34296 Montpellier cedex, France
Search for more papers by this authorCorresponding Author
José-Marie Lopez-Cuesta
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières, 30319 ALES Cedex, France
Centre des Matériaux de Grande Diffusion, Ecole des Mines d'Alès, 6 avenue de Clavières 30319 ALES Cedex, France.Search for more papers by this authorAbstract
Nanometric aluminum oxide particles were modified by phosphonic acid-based oligomers of aromatic polyester, polyether, or polydimethylsiloxane (PDMS). The grafting process was characterized by FTIR spectroscopy and thermogravimetric analysis (TGA) showing that covalent bonds must have formed between the oxide and oligomers. The highest yield of grafting was achieved in dichloromethane (CH2Cl2) solvent. Then, nanocomposites were prepared by melt-blending in a poly(methyl methacrylate) (PMMA) matrix. The best results in terms of thermal stability and flammability were obtained with the bis-phosphonicpolydimethylsiloxane-based formulation. With this latter, the peak of heat released rate (pHRR) decreased during the combustion, whereas PyGC/MS experiments led to the conclusion that PDMS-covered nanoparticles played a role in the composition of the gaseous phase as well. Copyright © 2008 John Wiley & Sons, Ltd.
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