Screening of suitable random copolymer polypropylene blends for HVDC cable insulation

Minna Niittymaki; Kari Lahti; Ilkka Rytöluoto; Eetta Saarimäki; Mika Paajanen; Bassel Diban; Paolo Seri; Giovanni Mazzanti; Maya Mourad; Anais Leproux; Rafal Anyszka; Frederik Wurm; Timo Rheinberger

doi:10.1109/ICD59037.2024.10613125

Screening of suitable random copolymer polypropylene blends for HVDC cable insulation

Minna Niittymaki (Corresponding author), Kari Lahti, Ilkka Rytöluoto, Eetta Saarimäki, Mika Paajanen, Bassel Diban, Paolo Seri, Giovanni Mazzanti, Maya Mourad, Anais Leproux, Rafal Anyszka, Frederik Wurm, Timo Rheinberger

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

Polypropylene (PP) based thermoplastics offer an interesting alternative over cross-linked polyethylene (XLPE) for extruded HVDC cable insulation. In this study, a set of PP random copolymer-based blends are screened by dielectric characterizations (dielectric breakdown strength, space charge, thermally stimulated depolarization current (TSDC), polarization/conductivity) in order to find the most promising blend systems for HVDC cable insulation. Moreover, thermomechanical properties of the PP blends are evaluated to ensure suitability for cable insulation applications. The blends show similar or slightly improved breakdown strength but clearly lower field enhancement factor in space charge measurements when compared to a fully degassed XLPE reference material. The TSDC measurements reveal the possibility to optimize the trapping behavior by varying the blend composition. Thus, the best blend formulations offer promising performance for further HVDC insulation development. After this screening phase, the best blend alternatives will be taken to pilot-scale production level with sample extrusion and for further HVDC insulation material development and optimization.

Original language	English
Title of host publication	Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024
Publisher	IEEE Institute of Electrical and Electronic Engineers
Number of pages	4
ISBN (Electronic)	979-8-3503-0897-6
ISBN (Print)	979-8-3503-0898-3
DOIs	https://doi.org/10.1109/ICD59037.2024.10613125
Publication status	Published - 30 Jun 2024
MoE publication type	A4 Article in a conference publication
Event	IEEE 5th International Conference on Dielectrics - Toulouse, France Duration: 30 Jun 2024 → 4 Jul 2024

Conference

Conference	IEEE 5th International Conference on Dielectrics
Country/Territory	France
City	Toulouse
Period	30/06/24 → 4/07/24

Funding

Funded by the European Union Grant Agreement No 101075592. Views and opinions expressed are however those of the author(s) only and do not necessarily reflect those of the European Union or CINEA. Neither the European Union nor the granting authority can be held responsible for them.

Keywords

breakdown
cable
conductivity
HVDC
insulation
PEA
polymer
polypropylene
space charge
TSDC

Access to Document

10.1109/ICD59037.2024.10613125

Cite this

Niittymaki, M., Lahti, K., Rytöluoto, I., Saarimäki, E., Paajanen, M., Diban, B., Seri, P., Mazzanti, G., Mourad, M., Leproux, A., Anyszka, R., Wurm, F., & Rheinberger, T. (2024). Screening of suitable random copolymer polypropylene blends for HVDC cable insulation. In Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024 Article 2A-20 IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ICD59037.2024.10613125

@inproceedings{88683aff612443f2864340c75262ed7e,

title = "Screening of suitable random copolymer polypropylene blends for HVDC cable insulation",

abstract = "Polypropylene (PP) based thermoplastics offer an interesting alternative over cross-linked polyethylene (XLPE) for extruded HVDC cable insulation. In this study, a set of PP random copolymer-based blends are screened by dielectric characterizations (dielectric breakdown strength, space charge, thermally stimulated depolarization current (TSDC), polarization/conductivity) in order to find the most promising blend systems for HVDC cable insulation. Moreover, thermomechanical properties of the PP blends are evaluated to ensure suitability for cable insulation applications. The blends show similar or slightly improved breakdown strength but clearly lower field enhancement factor in space charge measurements when compared to a fully degassed XLPE reference material. The TSDC measurements reveal the possibility to optimize the trapping behavior by varying the blend composition. Thus, the best blend formulations offer promising performance for further HVDC insulation development. After this screening phase, the best blend alternatives will be taken to pilot-scale production level with sample extrusion and for further HVDC insulation material development and optimization.",

keywords = "breakdown, cable, conductivity, HVDC, insulation, PEA, polymer, polypropylene, space charge, TSDC",

author = "Minna Niittymaki and Kari Lahti and Ilkka Ryt{\"o}luoto and Eetta Saarim{\"a}ki and Mika Paajanen and Bassel Diban and Paolo Seri and Giovanni Mazzanti and Maya Mourad and Anais Leproux and Rafal Anyszka and Frederik Wurm and Timo Rheinberger",

year = "2024",

month = jun,

day = "30",

doi = "10.1109/ICD59037.2024.10613125",

language = "English",

isbn = "979-8-3503-0898-3",

booktitle = "Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024",

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

address = "United States",

note = "IEEE 5th International Conference on Dielectrics ; Conference date: 30-06-2024 Through 04-07-2024",

}

Niittymaki, M, Lahti, K, Rytöluoto, I , Saarimäki, E , Paajanen, M, Diban, B, Seri, P, Mazzanti, G, Mourad, M, Leproux, A, Anyszka, R, Wurm, F & Rheinberger, T 2024, Screening of suitable random copolymer polypropylene blends for HVDC cable insulation. in Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024., 2A-20, IEEE Institute of Electrical and Electronic Engineers, IEEE 5th International Conference on Dielectrics , Toulouse, France, 30/06/24. https://doi.org/10.1109/ICD59037.2024.10613125

Screening of suitable random copolymer polypropylene blends for HVDC cable insulation. / Niittymaki, Minna (Corresponding author); Lahti, Kari; Rytöluoto, Ilkka et al.
Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024. IEEE Institute of Electrical and Electronic Engineers, 2024. 2A-20.

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

TY - GEN

T1 - Screening of suitable random copolymer polypropylene blends for HVDC cable insulation

AU - Niittymaki, Minna

AU - Lahti, Kari

AU - Rytöluoto, Ilkka

AU - Saarimäki, Eetta

AU - Paajanen, Mika

AU - Diban, Bassel

AU - Seri, Paolo

AU - Mazzanti, Giovanni

AU - Mourad, Maya

AU - Leproux, Anais

AU - Anyszka, Rafal

AU - Wurm, Frederik

AU - Rheinberger, Timo

PY - 2024/6/30

Y1 - 2024/6/30

N2 - Polypropylene (PP) based thermoplastics offer an interesting alternative over cross-linked polyethylene (XLPE) for extruded HVDC cable insulation. In this study, a set of PP random copolymer-based blends are screened by dielectric characterizations (dielectric breakdown strength, space charge, thermally stimulated depolarization current (TSDC), polarization/conductivity) in order to find the most promising blend systems for HVDC cable insulation. Moreover, thermomechanical properties of the PP blends are evaluated to ensure suitability for cable insulation applications. The blends show similar or slightly improved breakdown strength but clearly lower field enhancement factor in space charge measurements when compared to a fully degassed XLPE reference material. The TSDC measurements reveal the possibility to optimize the trapping behavior by varying the blend composition. Thus, the best blend formulations offer promising performance for further HVDC insulation development. After this screening phase, the best blend alternatives will be taken to pilot-scale production level with sample extrusion and for further HVDC insulation material development and optimization.

AB - Polypropylene (PP) based thermoplastics offer an interesting alternative over cross-linked polyethylene (XLPE) for extruded HVDC cable insulation. In this study, a set of PP random copolymer-based blends are screened by dielectric characterizations (dielectric breakdown strength, space charge, thermally stimulated depolarization current (TSDC), polarization/conductivity) in order to find the most promising blend systems for HVDC cable insulation. Moreover, thermomechanical properties of the PP blends are evaluated to ensure suitability for cable insulation applications. The blends show similar or slightly improved breakdown strength but clearly lower field enhancement factor in space charge measurements when compared to a fully degassed XLPE reference material. The TSDC measurements reveal the possibility to optimize the trapping behavior by varying the blend composition. Thus, the best blend formulations offer promising performance for further HVDC insulation development. After this screening phase, the best blend alternatives will be taken to pilot-scale production level with sample extrusion and for further HVDC insulation material development and optimization.

KW - breakdown

KW - cable

KW - conductivity

KW - HVDC

KW - insulation

KW - PEA

KW - polymer

KW - polypropylene

KW - space charge

KW - TSDC

UR - http://www.scopus.com/inward/record.url?scp=85202298125&partnerID=8YFLogxK

U2 - 10.1109/ICD59037.2024.10613125

DO - 10.1109/ICD59037.2024.10613125

M3 - Conference article in proceedings

SN - 979-8-3503-0898-3

BT - Proceedings of the 2024 IEEE 5th International Conference on Dielectrics, ICD 2024

PB - IEEE Institute of Electrical and Electronic Engineers

T2 - IEEE 5th International Conference on Dielectrics

Y2 - 30 June 2024 through 4 July 2024

ER -

Screening of suitable random copolymer polypropylene blends for HVDC cable insulation

Abstract

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

NEWGEN: New generation of HVDC insulation materials, cables and systems

Cite this

Screening of suitable random copolymer polypropylene blends for HVDC cable insulation

Abstract

Conference

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Projects

NEWGEN: New generation of HVDC insulation materials, cables and systems

Cite this