A new elaboration concept of polypropylene/unmodified Montmorillonite nanocomposites by reactive extrusion based on direct injection of polypropylene aqueous suspensions
| Autor: | Jérémie Soulestin, M.-F. Lacrampe, M. Aloui, Nicolas Quiévy, Patricia Krawczak, Michel Sclavons, Dimitri Rousseaux, Jacques Devaux, Jacqueline Marchand-Brynaert |
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| Přispěvatelé: | Département Technologie des Polymères et Composites & Ingénierie Mécanique (TPCIM), École des Mines de Douai (Mines Douai EMD), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Ministère de l'Economie, des Finances et de l'Industrie, Institut Mines-Télécom [Paris] (IMT), Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Université Catholique de Louvain = Catholic University of Louvain (UCL) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
Materials science
Polymers and Plastics 02 engineering and technology Reactive extrusion 010402 general chemistry 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials chemistry.chemical_compound [SPI]Engineering Sciences [physics] Materials Chemistry [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering Composite material ComputingMilieux_MISCELLANEOUS Polypropylene Nanocomposite Cationic polymerization General Chemistry 021001 nanoscience & nanotechnology Exfoliation joint 0104 chemical sciences Montmorillonite [CHIM.POLY]Chemical Sciences/Polymers chemistry Masterbatch Extrusion 0210 nano-technology |
| Zdroj: | Polymer Engineering and Science Polymer Engineering and Science, Wiley-Blackwell, 2009, 49 (11), pp.2276-2285. ⟨10.1002/pen.21474⟩ |
| ISSN: | 0032-3888 1548-2634 |
| Popis: | Nanocomposites based on polypropylene (PP) and unmodified Montmorillonite were prepared using a novel elaboration route based on a water-assisted extrusion process. Unmodified Montmorillonite, high shear compounding together with injection of aqueous suspension and reactive processing technology were used. Different aqueous suspensions containing cationic or anionic surfactants, and a compatibilizer (PP-g-MA) were injected during extrusion to promote clay dispersion. For a comparison purpose, a commercial PP/clay masterbatch was melt mixed to PP. Structural, morphological, and rheological characterizations indicate clearly that the cationic suspensions ease the dispersion of clay platelets in the PP matrix. No full exfoliation is, however, obtained, and the system remains still less homogeneous than the nanocomposite based on the commercial masterbatch. Nevertheless, mechanical and thermal characterizations of the nanocomposites based on cationic surfactants demonstrate the efficiency to disperse clay in the polymer matrix, and the effect on the ductility compared to usual PP nanocomposites is promising. POLYM. ENG. SCI., 49:2276-2285, 2009. (C) 2009 Society of Plastics Engineers |
| Databáze: | OpenAIRE |
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