Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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VTT Technical Research Centre of Finland

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (68/68 displayed)

  • 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulation3citations
  • 2024Screening of suitable random copolymer polypropylene blends for HVDC cable insulation3citations
  • 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulation5citations
  • 2024Characterization of Isotactic-Polypropylene-Based Compounds for HVDC Cable Insulation5citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2023Molecular Layer Deposition of Polyurea on Silica Nanoparticles and Its Application in Dielectric Nanocomposites3citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors40citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors: morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2022Biaxially oriented silica–polypropylene nanocomposites for HVDC film capacitors : morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2022Biaxially oriented silica-polypropylene nanocomposites for HVDC film capacitors: Morphology-dielectric property relationships, and critical evaluation of the current progress and limitations40citations
  • 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blends14citations
  • 2021Dielectric performance of silica-filled nanocomposites based on miscible (PP/PP-HI) and immiscible (PP/EOC) polymer blends14citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation : Are silica clusters beneficial for space charge accumulation?7citations
  • 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silica3citations
  • 2021Combining good dispersion with tailored charge trapping in nanodielectrics by hybrid functionalization of silica3citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation: Are silica clusters beneficial for space charge accumulation?7citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation:Are silica clusters beneficial for space charge accumulation?7citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021Deposition of Ureido and Methacrylate Functionalities onto Silica Nanoparticles and Its Effect on the Properties of Polypropylene-Based Nanodielectrics4citations
  • 2021PP/PP-HI/silica nanocomposites for HVDC cable insulation7citations
  • 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-compositescitations
  • 2020Silica surface modification with liquid rubbers & functional groups for new polyolefin-based dielectric nano-compositescitations
  • 2020Tribological performance of high density polyethylene (HDPE) composites with low nanofiller loading46citations
  • 2020On the Silica Surface Modification and Its Effect on Charge Trapping and Transport in PP-Based Dielectric Nanocomposites70citations
  • 2020From Laboratory to Industrial Scale:Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Films1citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites2citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Feasibility of Mini-Scale Injection Molding for Resource-Efficient Screening of PP-Based Cable Insulation Nanocomposites1citations
  • 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?citations
  • 2020Silica Functionalization: How Does it Affect Space Charge Accumulation in Nanodielectrics Under DC?citations
  • 2020From Laboratory to Industrial Scale1citations
  • 2020Silica surface-modification for tailoring the charge trapping properties of PP/POE based dielectric nanocomposites for HVDC cable application25citations
  • 2020From Laboratory to Industrial Scale : Comparison of Short- and Long-Term Dielectric Performance of Silica-Polypropylene Capacitor Films1citations
  • 2019Solution Modified Fumed Silica and Its Effect on Charge Trapping Behavior of PP/POE/Silica Nanodielectrics4citations
  • 2019Surface Modification of Fumed Silica by Plasma Polymerization of Acetylene for PP/POE Blends Dielectric Nanocomposites28citations
  • 2019Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites4citations
  • 2019Investigation of nanocomposite polypropylene for DC capacitors:A feasibility study1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors2citations
  • 2019Surface Modification of Fumed Silica by Dry Silanization for PP/POE-based Dielectric Nanocomposites1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors: Structure–Property Studies and the Role of Biaxial Stretching Conditions2citations
  • 2019Surface Modification of Fumed Silica by Dry Silanization for PP-based Dielectric Nanocomposites10citations
  • 2019Investigation of Nanocomposite Polypropylene for DC Capacitors: A Feasibility Study1citations
  • 2019Silica-Polypropylene Nanocomposites for Film Capacitors:Structure–Property Studies and the Role of Biaxial Stretching Conditions2citations
  • 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films4citations
  • 2018Compounding, Structure and Dielectric Properties of Silica-BOPP Nanocomposite Films4citations
  • 2018Short-Term Dielectric Performance Assessment of BOPP Capacitor Films: A Baseline Study12citations
  • 2017The Role of Film Processing in the Large-Area Dielectric Breakdown Performance of Nano-Silica-BOPP Films3citations
  • 2017Large-area approach to evaluate DC electro-thermal ageing behavior of BOPP thin films for capacitor insulation systems30citations
  • 2017Nanocomposite Polypropylene For DC Cables And Capacitors6citations
  • 2017Nanocomposite Polypropylene For DC Cables And Capacitors:A New European Project6citations
  • 2016Differences in AC and DC large-area breakdown behavior of polymer thin films14citations
  • 2016Large-Area Multi-Breakdown Characterization of Polymer Films: A New Approach for Establishing Structure–Processing–Breakdown Relationships in Capacitor Dielectricscitations
  • 2016Role of microstructure in dielectric properties of thermally sprayed ceramic coatings7citations
  • 2016Dielectric breakdown properties of mechanically recycled SiO2-BOPP nanocomposites8citations
  • 2015DC ramp rate effect on the breakdown response of SiO2-BOPP nanocomposites9citations
  • 2015Effects of thermal aging on the characteristic breakdown behavior of nano-SiO2-BOPP and BOPP films8citations
  • 2015Large-area dielectric breakdown performance of polymer films:Part II: Interdependence of filler content, processing and breakdown performance in polypropylene-silica nanocomposites38citations
  • 2015Large-area dielectric breakdown performance of polymer films:Part I: Measurement method evaluation and statistical considerations on area-dependence49citations
  • 2015Large-area dielectric breakdown performance of polymer films - Part II38citations
  • 2015Large-area dielectric breakdown performance of polymer films - Part I: Measurement method evaluation and statistical considerations on area-dependence49citations
  • 2015The role of film processing in the large-area dielectric breakdown performance of nano-silica-BOPP films3citations
  • 2014Influence of low amounts of nanostructured silica and calcium carbonate fillers on the large-area dielectric breakdown performance of bi-axially oriented polypropylene5citations

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Chart of shared publication
Wurm, Frederik
4 / 5 shared
Mazzanti, Giovanni
4 / 5 shared
Saarimaki, Eetta
12 / 22 shared
Lahti, Kari
65 / 76 shared
Niittymaki, Minna
11 / 13 shared
Mourad, Maya
4 / 4 shared
Leproux, Anais
4 / 4 shared
Rheinberger, Timo
4 / 8 shared
Diban, Bassel
4 / 5 shared
Seri, Paolo
29 / 34 shared
Paajanen, Mika
51 / 83 shared
Anyszka, Rafal
31 / 33 shared
Saarimäki, Eetta
34 / 42 shared
Niittymäki, Minna
26 / 33 shared
Palmieri, Lorenzo
2 / 2 shared
La Zara, Damiano
2 / 4 shared
Blume, Anke
28 / 36 shared
Dierkes, Wilma
31 / 35 shared
Mahtabani, Amirhossein
32 / 36 shared
Saedy, Saeed
3 / 3 shared
He, Xiaozhen
32 / 36 shared
Van Ommen, J. Ruud
2 / 4 shared
La Zara, D.
1 / 7 shared
Anyszka, Rafał
5 / 9 shared
Saedy, S.
1 / 3 shared
Van Ommen, J. R.
1 / 13 shared
Zara, Damiano La
1 / 1 shared
Ommen, J. Ruud Van
1 / 2 shared
Flyktman, Timo
8 / 10 shared
Naderiallaf, Hadi
18 / 21 shared
Perego, Gabriele
9 / 10 shared
Mazel, Christelle
9 / 10 shared
Ronkainen, Helena
1 / 74 shared
Heino, Vuokko
1 / 19 shared
Pelto, Jani
5 / 30 shared
Karttunen, Mikko
18 / 42 shared
Montanari, Gian Carlo
5 / 7 shared
Carlo Montanari, Gian
1 / 1 shared
Ritamäki, Mikael
9 / 11 shared
Ritamaki, Mikael
1 / 2 shared
Karttunen, Mikka
1 / 1 shared
Vestberg, Torvald
1 / 2 shared
Pasanen, Satu
2 / 5 shared
Metsäjoki, Jarkko
1 / 33 shared
Suhonen, Tomi
1 / 50 shared
Pettersson, Mika
2 / 8 shared
Virtanen, Suvi
2 / 12 shared
Koponen, Matti
3 / 7 shared
Karttunen, M.
1 / 2 shared
Virtanen, S.
1 / 11 shared
Koponen, M.
2 / 2 shared
Pettersson, M.
1 / 4 shared
Chart of publication period
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2023
2022
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2020
2019
2018
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2016
2015
2014

Co-Authors (by relevance)

  • Wurm, Frederik
  • Mazzanti, Giovanni
  • Saarimaki, Eetta
  • Lahti, Kari
  • Niittymaki, Minna
  • Mourad, Maya
  • Leproux, Anais
  • Rheinberger, Timo
  • Diban, Bassel
  • Seri, Paolo
  • Paajanen, Mika
  • Anyszka, Rafal
  • Saarimäki, Eetta
  • Niittymäki, Minna
  • Palmieri, Lorenzo
  • La Zara, Damiano
  • Blume, Anke
  • Dierkes, Wilma
  • Mahtabani, Amirhossein
  • Saedy, Saeed
  • He, Xiaozhen
  • Van Ommen, J. Ruud
  • La Zara, D.
  • Anyszka, Rafał
  • Saedy, S.
  • Van Ommen, J. R.
  • Zara, Damiano La
  • Ommen, J. Ruud Van
  • Flyktman, Timo
  • Naderiallaf, Hadi
  • Perego, Gabriele
  • Mazel, Christelle
  • Ronkainen, Helena
  • Heino, Vuokko
  • Pelto, Jani
  • Karttunen, Mikko
  • Montanari, Gian Carlo
  • Carlo Montanari, Gian
  • Ritamäki, Mikael
  • Ritamaki, Mikael
  • Karttunen, Mikka
  • Vestberg, Torvald
  • Pasanen, Satu
  • Metsäjoki, Jarkko
  • Suhonen, Tomi
  • Pettersson, Mika
  • Virtanen, Suvi
  • Koponen, Matti
  • Karttunen, M.
  • Virtanen, S.
  • Koponen, M.
  • Pettersson, M.
OrganizationsLocationPeople

document

Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites

  • Dierkes, Wilma
  • Naderiallaf, Hadi
  • Saarimaki, Eetta
  • Lahti, Kari
  • Mahtabani, Amirhossein
  • He, Xiaozhen
  • Seri, Paolo
  • Rytöluoto, Ilkka
  • Paajanen, Mika
  • Anyszka, Rafal
  • Niittymäki, Minna
  • Blume, Anke
Abstract

<p>This study focuses on the influence of polar and unpolar surface functionalization of silica on the dielectric performance of PP/POE (polypropylene/poly(ethylene-co-octene)) nanocomposites. The silica fillers were surface-modified with unpoalr trimethylethoxysilane (TMES) or polar 3aminopropyl triethoxysilane (APTES). Fourier-Transform Infrared Spectroscopy and Thermogravimetric analysis were performed and confirmed qualitatively and quantitatively the successful silica-silane modification. Silica/PP/POE nanocomposite films were prepared using a mini-extruder. Scanning Electron Microscope images showed good dispersion of the modified silica in the PP/POE matrix. However, the polar silica cluster size (300 nm) is slightly larger than the one of the unpolar silica (100 nm). Thermally Stimulated Depolarization Current (TSDC) characterization data showed that the polar silica introduced deeper charge traps than the unpolar one, which also showed higher trap density. The apparent conductivity measured during the TSDC poling phase indicated that the polar silica filled nanocomposites featured very fast polarization to reach the saturation state, while the unpolar silica had a rather slow polarization rate. From Pulsed Electroacoustic Analysis it was obvious that the space charge is suppressed by addition of the polar silica, but increased by the presence of the unpolar silica.</p>

Topics
  • nanocomposite
  • density
  • impedance spectroscopy
  • dispersion
  • surface
  • cluster
  • phase
  • thermogravimetry
  • functionalization
  • atom probe tomography
  • infrared spectroscopy