693.932 PEOPLE
| 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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Lahti, Kari
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (76/76 displayed)
- 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulationcitations
- 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulationcitations
- 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulationcitations
- 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulationcitations
- 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocompositescitations
- 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocompositescitations
- 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocompositescitations
- 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitorscitations
- 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors: morphology-dielectric property relationships, and critical evaluation of the current progress and limitationscitations
- 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors : morphology-dielectric property relationships, and critical evaluation of the current progress and limitationscitations
- 2022Biaxially oriented silica-polypropylene nanocomposites for HVDC film capacitors: Morphology-dielectric property relationships, and critical evaluation of the current progress and limitationscitations
- 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blendscitations
- 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blendscitations
- 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation : Are silica clusters beneficial for space charge accumulation?citations
- 2021Dielectric Performance of Silica-Filled Nanocomposites Based on Miscible (PP/PP-HI) and Immiscible (PP/EOC) Polymer Blendscitations
- 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silicacitations
- 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silicacitations
- 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation: Are silica clusters beneficial for space charge accumulation?citations
- 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation:Are silica clusters beneficial for space charge accumulation?citations
- 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectricscitations
- 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectricscitations
- 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectricscitations
- 2021PP/PP-HI/silica nanocomposites for HVDC cable insulationcitations
- 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-composites
- 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-composites
- 2020On the Silica Surface Modification and Its Effect on Charge Trapping and Transport in PP-Based Dielectric Nanocompositescitations
- 2020From Laboratory to Industrial Scale:Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Filmscitations
- 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocompositescitations
- 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocompositescitations
- 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocompositescitations
- 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocompositescitations
- 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocompositescitations
- 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocompositescitations
- 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?
- 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?
- 2020From Laboratory to Industrial Scalecitations
- 2020Silica surface-modification for tailoring the charge trapping properties of PP/POE based dielectric nanocomposites for HVDC cable applicationcitations
- 2020From Laboratory to Industrial Scale : Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Filmscitations
- 2019Solution Modified Fumed Silica and Its Effect on Charge Trapping Behavior of PP/POE/Silica Nanodielectricscitations
- 2019Surface Modification of Fumed Silica by Plasma Polymerization of Acetylene for PP/POE Blends Dielectric Nanocompositescitations
- 2019Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocompositescitations
- 2019Investigation of nanocomposite polypropylene for DC capacitors:A feasibility studycitations
- 2019Silica-Polypropylene Nanocomposites for Film Capacitorscitations
- 2019Surface Modification of Fumed Silica by Dry Silanization for PP/POE-based Dielectric Nanocompositescitations
- 2019Silica-Polypropylene Nanocomposites for Film Capacitors: Structure–Property Studies and the Role of Biaxial Stretching Conditionscitations
- 2019Surface Modification of Fumed Silica by Dry Silanization for PP-based Dielectric Nanocompositescitations
- 2019Investigation of Nanocomposite Polypropylene for DC Capacitors: A Feasibility Studycitations
- 2019Silica-Polypropylene Nanocomposites for Film Capacitors:Structure–Property Studies and the Role of Biaxial Stretching Conditionscitations
- 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Filmscitations
- 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Filmscitations
- 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Filmscitations
- 2018Effect of temperature and humidity on dielectric properties of thermally sprayed alumina coatingscitations
- 2018Effect of temperature and humidity on dielectric properties of thermally sprayed alumina coatingscitations
- 2018Short-Term Dielectric Performance Assessment of BOPP Capacitor Films: A Baseline Studycitations
- 2017The Role of Film Processing in the Large-Area Dielectric Breakdown Performance of Nano-Silica-BOPP Filmscitations
- 2017Large-area approach to evaluate DC electro-thermal ageing behavior of BOPP thin films for capacitor insulation systemscitations
- 2017Nanocomposite Polypropylene For DC Cables And Capacitorscitations
- 2017Nanocomposite Polypropylene For DC Cables And Capacitors:A New European Projectcitations
- 2017DC conduction and breakdown behavior of thermally sprayed ceramic coatingscitations
- 2017Aspects of moisture ingress in polymer housed surge arresterscitations
- 2016Differences in AC and DC large-area breakdown behavior of polymer thin filmscitations
- 2016Role of microstructure in dielectric properties of thermally sprayed ceramic coatingscitations
- 2016Dielectric breakdown properties of mechanically recycled SiO2-BOPP nanocompositescitations
- 2015Electric field dependency of dielectric behavior of thermally sprayed ceramic coatingscitations
- 2015DC ramp rate effect on the breakdown response of SiO2-BOPP nanocompositescitations
- 2015DC Dielectric Breakdown Behavior of Thermally Sprayed Ceramic Coatingscitations
- 2015Effects of thermal aging on the characteristic breakdown behavior of nano-SiO2-BOPP and BOPP filmscitations
- 2015Large-area dielectric breakdown performance of polymer films:Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocompositescitations
- 2015Large-area dielectric breakdown performance of polymer films:Part I: Measurement method evaluation and statistical considerations on area-dependencecitations
- 2015Large-area dielectric breakdown performance of polymer films - Part IIcitations
- 2015Dielectric Breakdown Strength of Thermally Sprayed Ceramic Coatingscitations
- 2015Large-area dielectric breakdown performance of polymer films - Part I: Measurement method evaluation and statistical considerations on area-dependencecitations
- 2015The role of film processing in the large-area dielectric breakdown performance of nano-silica-BOPP filmscitations
- 2014Influence of humidity and temperature on the dielectric properties of thermally sprayed ceramic MgAl2O4 coatingscitations
- 2014Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylenecitations
- 2013Dielectric properties of HVOF sprayed ceramic coatingscitations
Places of action
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article
Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites
Abstract
Polymer nanocomposites (NCs) offer outstanding potential for dielectric applications including insulation materials. The large interfacial area introduced by the nanoscale fillers plays a major role in improving the dielectric properties of NCs. Therefore, an effort to tailor the properties of these interfaces can lead to substantial improvement of the material’s macroscopic dielectric response. Grafting electrically active functional groups to the surface of nanoparticles (NPs) in a controlled manner can yield reproducible alterations in charge trapping and transport as well as space charge phenomena in nanodielectrics. In the present study, fumed silica NPs are surface modified with polyurea from phenyl diisocyanate (PDIC) and ethylenediamine (ED) via molecular layer deposition (MLD) in a fluidized bed. The modified NPs are then incorporated into a polymer blend based on polypropylene (PP)/ethylene-octene-copolymer (EOC), and their morphological and dielectric properties are investigated. We demonstrate the alterations in the electronic structure of silica upon depositing urea units using density functional theory (DFT) calculations. Subsequently, the effect of urea functionalization on the dielectric properties of NCs is studied using thermally stimulated depolarization current (TSDC) and broadband dielectric spectroscopy (BDS) methods. The DFT calculations reveal the contribution of both shallow and deep traps upon deposition of urea units onto the NPs. It could be concluded that the deposition of polyurea on NPs results in a bi-modal distribution of trap depths that are related to each monomer in the urea units and can lead to a reduction of space charge formation at filler-polymer interfaces. MLD offers a promising tool for tailoring the interfacial interactions in dielectric NCs.