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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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Saeedi, Istebreq A.
University of Southampton
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Dielectric breakdown strength of PDMS elastomers after mechanical cyclingcitations
- 2023Dielectric permittivity and breakdown strength of thermally aged polypropylene/ultra‒high molecular weight polyethylene nanocomposites
- 2021Investigation of the functional network modifier loading on the stoichiometric ratio of epoxy resins and their dielectric propertiescitations
- 2020Dielectric properties of modified epoxy resin systems: A novel approach for developing materials for new generation technologies
- 2019Functional design of epoxy-based networks: tailoring advanced dielectrics for next-generation energy systemscitations
- 2019On the Dielectric Behavior of Amine and Anhydride Cured Epoxy Resins Modified Using Multi-Terminal Epoxy Functional Network Modifiercitations
- 2018On the design of the structure of epoxy resin networkscitations
- 2018The influence of the molecular architecture on the thermal and the dielectric properties of epoxy resin networkscitations
Places of action
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document
Dielectric permittivity and breakdown strength of thermally aged polypropylene/ultra‒high molecular weight polyethylene nanocomposites
Abstract
This study investigates the effects of thermal aging on PP/UHMWPE blends and PP/UHMWPE/MgO nanocomposites. Thermal degradation of the aged materials is evaluated using thermogravimetric analysis, showing a reduction in the onset degradation temperatures for both systems. PP/UHMWPE/MgO demonstrates better thermal stability than PP/UHMWPE. Fourier transform infrared spectroscopy is employed to analyze the surface chemical modifications in the aged samples. The findings indicate the formation of carbonyl groups, with PP/UHMWPE/MgO displaying lower rates of oxidation compared to PP/UHMWPE. Relative permittivity increases with aging time, but the increase is less pronounced in the PP/UHMWPE/MgO. The presence of a dielectric relaxation peak at varying frequencies, with PP/UHMWPE exhibiting higher frequencies, is observed. AC breakdown strength gradually decreases with increasing aging time in both sample types, albeit to a lesser extent in the nanocomposites. Overall, the study demonstrates that the addition of MgO in PP/UHMWPE nanocomposites under thermal aging has a mitigated impact on thermal stability, oxidation reactions, dielectric permittivity, and AC breakdown strength when compared to PP/UHMWPE blends.