| 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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Ruckdäschel, Holger
Neue Materialien Bayreuth GmbH
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (31/31 displayed)
- 2024Influence of sodium hydroxide, silane, and siloxane treatments on the moisture sensitivity and mechanical properties of flax fiber compositescitations
- 2024Strategies for the fast optimization of the glass transition temperature of sustainable epoxy resin systems via machine learningcitations
- 2024Bayesian optimization-based prediction of the thermal properties from fatigue test IR imaging of composite couponscitations
- 2024Dielectric properties of PEEK/PEI blends as substrate material in high-frequency circuit board applications
- 2024Relationship between the tensile modulus and the thermal conductivity perpendicular and in fiber direction of PAN-based carbon fiberscitations
- 2024Investigating the changing dynamics of processing, temperature-based mechanics, and flame retardancy in the transfer of ammonium polyphosphate/inorganic silicate flame retardants from epoxy resins to glass fiber compositescitations
- 2024A systematic investigation of the transfer of polyphosphate/inorganic silicate flame retardants from epoxy resins to layered glass fiber-reinforced composites and their post-furnace flexural propertiescitations
- 2024Development of a low-expansion and low-shrinkage thermoset injection moulding compound tailored to laminated electrical sheets
- 2024A systematic investigation of the transfer of polyphosphate/inorganic silicate flame retardants from epoxy resins to layered glass fiber‐reinforced composites and their post‐furnace flexural propertiescitations
- 2024Investigating the trade-off effects of inorganic phosphate/silicate flame retardant content on the fire performance and post-fire flexural mechanics of epoxy/glass fiber composites
- 2024Weaving Through Fire And Force: Fire Behavior and Modes of Action between Epoxy Resin and Glass Fiber Composites
- 2024Numerical study on the influence of cell gas on the compression behavior of expanded polypropylene
- 2023Relationship between the tensile modulus and the thermal conductivity perpendicular and in the fiber direction of PAN-based carbon fiberscitations
- 2023Effect of density on the fatigue behaviour of EPP and ETPU bead foamscitations
- 2023Adapting intumescent/low-melting glass flame-retardant formulations for transfer to glass-fiber-reinforced composites and postfiremechanical analysis
- 2023Zum Zusammenspiel von Polymer, Morphologie und Zellgas bei der Deformation von Partikelschäumen
- 2023Mechanische Charakterisierung von Partikelschäumen im Vakuum: Neue Einblicke durch innovative Prüfmethodik
- 2023Influence of glass fibers on the processability and mechanical properties of PP homopolymer for fused filament fabrication (FFF)citations
- 2023Cell structure analysis of expanded polypropylene bead foams under compression
- 2023Investigation of the Reaction Kinetics of Poly(butylene terephthalate) and Epoxide Chain Extendercitations
- 2022Glass transition of PLA-CO<sub>2</sub> mixtures after solid-state saturationcitations
- 2022A review of electrical and thermal conductivities of epoxy resin systems reinforced with carbon nanotubes and graphene-based nanoparticles
- 2022Simulationsstrategie für hierarchisch aufgebaute Partikelschäume
- 2022Influence of Sample Wetting Method on ESC-Behavior of PMMA under Dynamic Fatigue Crack Propagationcitations
- 2022Influence of Block Copolymer Concentration and Resin Crosslink Density on the Properties of UV‐Curable Methacrylate Resin Systemscitations
- 2021Low temperature fatigue crack propagation in toughened epoxy resins aimed for filament winding of type V composite pressure vesselscitations
- 2011Development of polymer foams : Trends & sustainability
- 2009Charge storage of ternary polymer blends based on poly(phenylene ether)citations
- 2008Controlling the phase morphology of immiscible poly(2,6- dimethyl-1,4-phenylene ether)/poly(styrene-co-acrylonitrile) blends via addition of polystyrenecitations
- 2008Micro- and nanostructured polymer blends : Processing, properties and foaming behaviour
- 2007Foaming of polymer blends : Chance and challengecitations
Places of action
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article
Investigation of the Reaction Kinetics of Poly(butylene terephthalate) and Epoxide Chain Extender
Abstract
<jats:title>Abstract</jats:title><jats:p>Polyesters, such as poly (butylene terephthalate) (PBT), owe a rather low melt strength, which is considered as not beneficial for foaming. To overcome this issue, a typical attempt is the incorporation of chemical modifications—so‐called chain extenders (CE)—in the reactive extrusion process. In this study, the reaction kinetic variables are investigated depending on the material and process parameters. For this purpose, different series of experiments are performed with varying PBT with different molecular weights and the commonly used CE, Joncryl ADR4468, on a micro compounder. The screw force is recorded and analyzed using an Avrami and an Arrhenius plot. First, the amount of CE is systematically varied. To study the course of the reaction in more detail, the reaction is stopped in a series of measurements (10, 30, 60, and 90 s after complete filling). Gel permeation chromatography (GPC), Fourier transform infrared spectroscopy (FT‐IR), and Raman spectra are recorded. In the second series, the effect of processing temperatures between 250 and 270 °C is investigated, and finally, in the third series, the average molecular weight of PBT is varied. It could be shown that the activation energy seems to be dependent on the initial molecular weight; lower molecular weights result in lower activation energy.</jats:p>