Inorganic/organic nanocomposites: Reaching a high filler content without increasing viscosity using core-shell structured nanoparticles
| Autor: | Warda Benhadjala, Yves Ousten, Mélanie Louarn, Vincent Gaud, Laurent Bechou, Fabien Rouge, Morgane Gravoueille, Ephraim Suhir, M Weiss, Isabelle Bord-Majek, Matthieu Buet |
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| Přispěvatelé: | Laboratoire de l'intégration, du matériau au système (IMS), Université Sciences et Technologies - Bordeaux 1 (UB)-Institut Polytechnique de Bordeaux-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives - Laboratoire d'Electronique et de Technologie de l'Information (CEA-LETI), Direction de Recherche Technologique (CEA) (DRT (CEA)), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), University of California [Santa Cruz] (UC Santa Cruz), University of California (UC), Polyrise, EDF (EDF) |
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Filler (packaging) Nanocomposite Materials science Physics and Astronomy (miscellaneous) Intrinsic viscosity Composite number Nanoparticle [CHIM.MATE]Chemical Sciences/Material chemistry Polymer [SPI.TRON]Engineering Sciences [physics]/Electronics Viscosity chemistry Chemical engineering Polymer chemistry Adhesive |
| Zdroj: | Applied Physics Letters Applied Physics Letters, 2015, 107 (21), pp.211903. ⟨10.1063/1.4936339⟩ |
| ISSN: | 1077-3118 0003-6951 |
| DOI: | 10.1063/1.4936339 |
| Popis: | International audience; Extensive research is being conducted on the development of inorganic/organic nanocomposites for a wide variety of applications in microelectronics, biotechnologies, photonics, adhesives, or optical coatings. High filler contents are usually required to fully optimize the nanocomposites properties. However, numerous studies demonstrated that traditional composite viscosity increases with increasing the filler concentration reducing therefore significantly the material processability. In this work, we synthesized inorganic/organic core-shell nanocomposites with different shell thicknesses. By reducing the shell thickness while maintaining a constant core size, the nanopar- ticle molecular mass decreases but the nanocomposite filler fraction is correlatively increased. We performed viscosity measurements, which clearly highlighted that intrinsic viscosity of hybrid nanoparticles decreases as the molecular mass decreases, and thus, as the filler fraction increases, as opposed to Einstein predictions about the viscosity of traditional inorganic/polymer two-phase mixtures. This exceptional behavior, modeled by Mark-Houwink-Sakurada equation, proves to be a significant breakthrough for the development of industrializable nanocomposites with high filler contents. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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