Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites

Amirhossein Mahtabani, Xiaozhen He (Contributor), Ilkka Rytöluoto (Contributor), Kari Lahti (Contributor), Mika Paajanen (Contributor), Eetta Saarimäki (Contributor), Rafal Anyszka (Contributor), Wilma Dierkes (Contributor), Anke Blume (Contributor)

Research output: Contribution to conferencePaper

31 Downloads (Pure)

Abstract

Various dielectric nanocomposite materials are studied in the frame of the European Commission funded project GRIDABLE. This project has the aim to develop DC cable extruded insulation and medium and low voltage DC capacitor films exhibiting enhanced performance with respect to presently used materials. The nanocomposites intended for cable applications are based on polypropylene (PP) blends filled with surface modified nano-silica particles. The surface modification is carried out via the state-of-the-art solution method using a polar silane as the modifying agent. Thermally Stimulated Depolarization Current (TSDC) measurements were carried out in order to study the charge trapping behavior of the nanocomposite samples. TSDC results indicate that the addition of the treated nano-silica, for most cases, reduces the density of the deep traps significantly. While more detailed studies are necessary, these results imply that the depth and the density of the deep trap states is profoundly influenced by the level of the silica modification i.e. the amount of the grafted silane on the silica surface.
Original languageEnglish
Number of pages5
Publication statusPublished - Apr 2019
Event2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019 - Guangzhou, China
Duration: 7 Apr 201910 Apr 2019
Conference number: 2

Conference

Conference2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019
Abbreviated titleICEMPE 2019
CountryChina
CityGuangzhou
Period7/04/1910/04/19

Fingerprint

polypropylene
nanocomposites
trapping
silicon dioxide
silanes
depolarization
cables
direct current
traps
insulation
low voltage
capacitors
electric potential

Keywords

  • Silica surface modification
  • PP blend/Silica dielectric nanocomposites
  • Charge trapping properties
  • TSDC
  • High voltage cable insulation

Cite this

Mahtabani, A., He, X., Rytöluoto, I., Lahti, K., Paajanen, M., Saarimäki, E., ... Blume, A. (2019). Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites. Paper presented at 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, Guangzhou, China.
Mahtabani, Amirhossein ; He, Xiaozhen ; Rytöluoto, Ilkka ; Lahti, Kari ; Paajanen, Mika ; Saarimäki, Eetta ; Anyszka, Rafal ; Dierkes, Wilma ; Blume, Anke . / Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites. Paper presented at 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, Guangzhou, China.5 p.
@conference{63dbc61ab16048f6a201a009ae60496b,
title = "Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites",
abstract = "Various dielectric nanocomposite materials are studied in the frame of the European Commission funded project GRIDABLE. This project has the aim to develop DC cable extruded insulation and medium and low voltage DC capacitor films exhibiting enhanced performance with respect to presently used materials. The nanocomposites intended for cable applications are based on polypropylene (PP) blends filled with surface modified nano-silica particles. The surface modification is carried out via the state-of-the-art solution method using a polar silane as the modifying agent. Thermally Stimulated Depolarization Current (TSDC) measurements were carried out in order to study the charge trapping behavior of the nanocomposite samples. TSDC results indicate that the addition of the treated nano-silica, for most cases, reduces the density of the deep traps significantly. While more detailed studies are necessary, these results imply that the depth and the density of the deep trap states is profoundly influenced by the level of the silica modification i.e. the amount of the grafted silane on the silica surface.",
keywords = "Silica surface modification, PP blend/Silica dielectric nanocomposites, Charge trapping properties, TSDC, High voltage cable insulation",
author = "Amirhossein Mahtabani and Xiaozhen He and Ilkka Ryt{\"o}luoto and Kari Lahti and Mika Paajanen and Eetta Saarim{\"a}ki and Rafal Anyszka and Wilma Dierkes and Anke Blume",
year = "2019",
month = "4",
language = "English",
note = "2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, ICEMPE 2019 ; Conference date: 07-04-2019 Through 10-04-2019",

}

Mahtabani, A, He, X, Rytöluoto, I, Lahti, K, Paajanen, M, Saarimäki, E, Anyszka, R, Dierkes, W & Blume, A 2019, 'Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites' Paper presented at 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, Guangzhou, China, 7/04/19 - 10/04/19, .

Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites. / Mahtabani, Amirhossein ; He, Xiaozhen (Contributor); Rytöluoto, Ilkka (Contributor); Lahti, Kari (Contributor); Paajanen, Mika (Contributor); Saarimäki, Eetta (Contributor); Anyszka, Rafal (Contributor); Dierkes, Wilma (Contributor); Blume, Anke (Contributor).

2019. Paper presented at 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, Guangzhou, China.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites

AU - Mahtabani, Amirhossein

A2 - He, Xiaozhen

A2 - Rytöluoto, Ilkka

A2 - Lahti, Kari

A2 - Paajanen, Mika

A2 - Saarimäki, Eetta

A2 - Anyszka, Rafal

A2 - Dierkes, Wilma

A2 - Blume, Anke

PY - 2019/4

Y1 - 2019/4

N2 - Various dielectric nanocomposite materials are studied in the frame of the European Commission funded project GRIDABLE. This project has the aim to develop DC cable extruded insulation and medium and low voltage DC capacitor films exhibiting enhanced performance with respect to presently used materials. The nanocomposites intended for cable applications are based on polypropylene (PP) blends filled with surface modified nano-silica particles. The surface modification is carried out via the state-of-the-art solution method using a polar silane as the modifying agent. Thermally Stimulated Depolarization Current (TSDC) measurements were carried out in order to study the charge trapping behavior of the nanocomposite samples. TSDC results indicate that the addition of the treated nano-silica, for most cases, reduces the density of the deep traps significantly. While more detailed studies are necessary, these results imply that the depth and the density of the deep trap states is profoundly influenced by the level of the silica modification i.e. the amount of the grafted silane on the silica surface.

AB - Various dielectric nanocomposite materials are studied in the frame of the European Commission funded project GRIDABLE. This project has the aim to develop DC cable extruded insulation and medium and low voltage DC capacitor films exhibiting enhanced performance with respect to presently used materials. The nanocomposites intended for cable applications are based on polypropylene (PP) blends filled with surface modified nano-silica particles. The surface modification is carried out via the state-of-the-art solution method using a polar silane as the modifying agent. Thermally Stimulated Depolarization Current (TSDC) measurements were carried out in order to study the charge trapping behavior of the nanocomposite samples. TSDC results indicate that the addition of the treated nano-silica, for most cases, reduces the density of the deep traps significantly. While more detailed studies are necessary, these results imply that the depth and the density of the deep trap states is profoundly influenced by the level of the silica modification i.e. the amount of the grafted silane on the silica surface.

KW - Silica surface modification

KW - PP blend/Silica dielectric nanocomposites

KW - Charge trapping properties

KW - TSDC

KW - High voltage cable insulation

M3 - Paper

ER -

Mahtabani A, He X, Rytöluoto I, Lahti K, Paajanen M, Saarimäki E et al. Effect of Silica Modification on Charge Trapping Behavior of PP blend/Silica Nanocomposites. 2019. Paper presented at 2nd International Conference on Electrical Materials and Power Equipment, ICEMPE 2019, Guangzhou, China.