| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Putaux, Jean-Luc
French National Centre for Scientific Research
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (24/24 displayed)
- 2023Valorization of olive leaf waste as a new source of fractions containing cellulose nanomaterialscitations
- 2023Lignin-Containing Cellulose Nanofibrils from TEMPO-Mediated Oxidation of Date Palm Waste: Preparation, Characterization, and Reinforcing Potentialcitations
- 2023Enhancing mechanical and thermal properties of plasticized poly-L-(lactic acid) by incorporating aminated-cellulose nanocrystalscitations
- 2022Lignin-Containing Cellulose Nanofibrils from TEMPO-Mediated Oxidation of Date Palm Waste: Preparation, Characterization, and Reinforcing Potentialcitations
- 2022Opportunities for Ivory Nut Residue Valorization as a Source of Nanocellulose Colloidal Suspensionscitations
- 2021A cobalt oxide–polypyrrole nanocomposite as an efficient and stable electrode material for electrocatalytic water oxidationcitations
- 2021Honeycomb Organization of Chitin Nanocrystals (ChNCs) in Nanocomposite Films of UV-Cured Waterborne Acrylated Epoxidized Soybean Oil Emulsified with ChNCscitations
- 2020Vinyltriethoxysilane-functionalized starch nanocrystals as Pickering stabilizer in emulsion polymerization of acrylic monomers. Application in nanocomposites and pressure-sensitive adhesivescitations
- 2020One-step processing of plasticized starch/cellulose nanofibrils nanocomposites via twin-screw extrusion of starch and cellulose fiberscitations
- 2019Hybrid nanocellulose decorated with silver nanoparticles as reinforcing filler with antibacterial propertiescitations
- 2019Microstructural and mechanical properties of biocomposites made of native starch granules and wood fiberscitations
- 2019In Vitro Synthesis and Crystallization of β-1,4-Mannancitations
- 2018Nickel oxide–polypyrrole nanocomposite electrode materials for electrocatalytic water oxidationcitations
- 2018Nickel oxide–polypyrrole nanocomposite electrode materials for electrocatalytic water oxidationcitations
- 2016Mechanical properties of natural rubber nanocomposites reinforced with high aspect ratio cellulose nanocrystals isolated from soy hullscitations
- 2015Forming Of Native Starch/Wood Composites
- 2015Fine microstructure of processed chitosan nanofibril networks preserving directional packing and high molecular weightcitations
- 2012Reorientation of cellulose nanowhiskers in agarose hydrogels under tensile loadingcitations
- 2010Synthesis of oily core-hybrid shell nanocapsules through interfacial free radical copolymerization in miniemulsion: droplet formation and nucleation
- 2010A-Type Crystals from Dilute Solutions of Short Amylose Chainscitations
- 2009In vitro model assemblies to study the impact of lignin-carbohydrate interactions on the enzymatic conversion of Xylancitations
- 2007Designing organic/inorganic colloids by heterophase polymerizationcitations
- 2004Filler-filler interactions and viscoelastic behavior of polymer nanocompositescitations
- 2004Preparation of aqueous anionic poly-(urethane-urea) dispersions: Influence of the nature and proportion of the urethane groups on the dispersion and polymer propertiescitations
Places of action
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article
Filler-filler interactions and viscoelastic behavior of polymer nanocomposites
Abstract
This work presents the main results obtained within a project on mechanical properties of polymer based nanocomposites. The specific point was how to analyze and model the filler–filler interactions in the description of the viscoelastic behavior of these materials. This paper aims at presenting the general strategy used by the different partners to address this question, together with original experimental results and micro-mechanical modeling. Different nanocomposite materials were fabricated using the latex route, leading to random dispersions of rigid submicronic particles (PS = polystyrene, silica) in a flexible polybutylacrylate matrix at various volume fractions. In addition, encapsulated silica particles in a styrene–acrylate copolymer were produced, leading, after film formation, to a limited number of contacts between silica fillers. The processing route of these encapsulated particles was optimized and the resulting morphology was analyzed by TEM experiments. In the case of random mixtures, a strong effect of reinforcement appears in the rubbery field of the soft phase when the filler content is above a critical fraction (percolation threshold). The reinforcement in the rubbery plateau can be still exacerbated in the case of the PS particles if the material undergoes a heat treatment above the main relaxation of the PS phase. These experimental results illustrate the difference between geometrical percolation (when particles are just in contact) and mechanical percolation (with strong interactions between the fillers). The comparison of the results for PS and silica fillers shows once more that the strength of the interactions plays an important role. To account for the whole set of experimental data, two ways of modeling were explored: (i) homogenization methods based on generalized self-consistent schemes and (ii) a discrete model of spheres assembly which explicitly describes the ability of the contacts to transmit efforts.