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

Xiaozhen He; Paolo Seri; Ilkka Rytöluoto; Rafal Anyszka; Minna Niittymäki; Amirhossein Mahtabani; Hadi Naderiallaf; Eetta Saarimäki; Kari Lahti; Mika Paajanen; Wilma Dierkes; Anke Blume

doi:10.1109/ICD46958.2020.9341923

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

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

BA5204 Materials processing and circular solutions

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

1 Citation (Scopus)

Abstract

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.

Original language	English
Title of host publication	Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020
Publisher	IEEE Institute of Electrical and Electronic Engineers
Pages	229-232
Number of pages	4
ISBN (Electronic)	978-1-7281-8983-3
ISBN (Print)	978-1-7281-8984-0
DOIs	https://doi.org/10.1109/ICD46958.2020.9341923
Publication status	Published - 5 Jul 2020
MoE publication type	A4 Article in a conference publication
Event	IEEE 2020 International Conference on Dielectrics, ICD 2020: Virtual Edition - Valencia, Spain Duration: 6 Jul 2020 → 31 Jul 2020

Conference

Conference	IEEE 2020 International Conference on Dielectrics, ICD 2020
Country/Territory	Spain
City	Valencia
Period	6/07/20 → 31/07/20

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10.1109/ICD46958.2020.9341923

Cite this

He, X., Seri, P., Rytöluoto, I., Anyszka, R., Niittymäki, M., Mahtabani, A., Naderiallaf, H., Saarimäki, E., Lahti, K., Paajanen, M., Dierkes, W., & Blume, A. (2020). Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites. In Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020 (pp. 229-232). [9341923] IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ICD46958.2020.9341923

@inproceedings{81cc0c4171f24572ab5c839512611d69,

title = "Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites",

abstract = "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.",

author = "Xiaozhen He and Paolo Seri and Ilkka Ryt{\"o}luoto and Rafal Anyszka and Minna Niittym{\"a}ki and Amirhossein Mahtabani and Hadi Naderiallaf and Eetta Saarim{\"a}ki and Kari Lahti and Mika Paajanen and Wilma Dierkes and Anke Blume",

year = "2020",

month = jul,

day = "5",

doi = "10.1109/ICD46958.2020.9341923",

language = "English",

isbn = "978-1-7281-8984-0",

pages = "229--232",

booktitle = "Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020",

publisher = "IEEE Institute of Electrical and Electronic Engineers",

address = "United States",

note = "IEEE 2020 International Conference on Dielectrics, ICD 2020 : Virtual Edition ; Conference date: 06-07-2020 Through 31-07-2020",

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He, X, Seri, P, Rytöluoto, I, Anyszka, R, Niittymäki, M, Mahtabani, A, Naderiallaf, H, Saarimäki, E, Lahti, K, Paajanen, M, Dierkes, W & Blume, A 2020, Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites. in Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020., 9341923, IEEE Institute of Electrical and Electronic Engineers, pp. 229-232, IEEE 2020 International Conference on Dielectrics, ICD 2020, Valencia, Spain, 6/07/20. https://doi.org/10.1109/ICD46958.2020.9341923

Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites. / He, Xiaozhen; Seri, Paolo; Rytöluoto, Ilkka et al.

Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020. IEEE Institute of Electrical and Electronic Engineers, 2020. p. 229-232 9341923.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

TY - GEN

T1 - Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites

AU - He, Xiaozhen

AU - Seri, Paolo

AU - Rytöluoto, Ilkka

AU - Anyszka, Rafal

AU - Niittymäki, Minna

AU - Mahtabani, Amirhossein

AU - Naderiallaf, Hadi

AU - Saarimäki, Eetta

AU - Lahti, Kari

AU - Paajanen, Mika

AU - Dierkes, Wilma

AU - Blume, Anke

PY - 2020/7/5

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N2 - 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.

AB - 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.

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DO - 10.1109/ICD46958.2020.9341923

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SN - 978-1-7281-8984-0

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EP - 232

BT - Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020

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T2 - IEEE 2020 International Conference on Dielectrics, ICD 2020

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ER -

He X, Seri P, Rytöluoto I, Anyszka R, Niittymäki M, Mahtabani A et al. Influence of polar and unpolar silica functionalization on the dielectric properties of PP/POE nanocomposites. In Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020. IEEE Institute of Electrical and Electronic Engineers. 2020. p. 229-232. 9341923 doi: 10.1109/ICD46958.2020.9341923

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

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