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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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Kirchberg, Stefan
in Cooperation with on an Cooperation-Score of 37%
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Publications (2/2 displayed)
- 2013Effect of compounding principles on thermal, mechanical and magnetic performance of soft magnetic polymethylmethacrylate/Fe3O4 nanocompositescitations
- 2012Nanocomposites Based on Technical Polymers and Sterically Functionalized SoftMagneticMagnetite Nanoparticles: Synthesis, Processing, and Characterizationcitations
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article
Nanocomposites Based on Technical Polymers and Sterically Functionalized SoftMagneticMagnetite Nanoparticles: Synthesis, Processing, and Characterization
Abstract
This experimental study deals with the synthesis, processing, and characterization of highly filled nanocomposites basedon polyvinyl butyral/magnetite (PVB/Fe3O4) and polymethylmethacrylate/magnetite (PMMA/Fe3O4). The nanoparticles aresynthesized in an aqueous coprecipitation reaction and show a single particle diameter of approximately 15 nm. The particles aresterically functionalized and covered by PVB andPMMAin a spray drying process. The synthesized compound particles are furtherprocessed by injection molding to test specimens with filler contents up to 14.5 vol.-%. PVB and PMMA specimen are processed asa reference as well. The distribution of the nanoparticles is characterized by microscopy. Besides a minor number of agglomeratesand aggregates the nanoparticles are distributed homogeneously in the PVB composites. Furthermore, the injection moldedspecimens are characterized with regard to their thermal degradation, polymer structure, and their mechanical and magneticproperties. The presence of nanoparticles capped with ricinoleic acid shows significant decrease in degradation temperature andin glass transition temperature of PVB. The degradation temperature of PMMA is increased by adding nanoparticles capped witholeic acid. Dynamic-mechanical properties as well as the magnetic permeability of PVB and PMMA are improved significantly byadding nanoparticles.