Various Characteristics of Severely Aged Flame-Retardant Cross-Linked Polyolefin

Haolong Zhou; Naoshi Hirai; Yoshimichi Ohki

doi:10.1002/tee.23477

Various Characteristics of Severely Aged Flame-Retardant Cross-Linked Polyolefin

Haolong Zhou, Naoshi Hirai, Yoshimichi Ohki^*

^*Corresponding author for this work

Kagami Memorial Research Institute for Materials Science and Technology

Research output: Contribution to journal › Article › peer-review

12 Citations (Scopus)

Abstract

Flame-retardant cross-linked polyolefin (FR-XLPO), is widely used as insulators for electric cables. Several cables installed in nuclear power plants must be functional even when they suffer a severe accident. Therefore, sheets of FR-XLPO were exposed to heat, gamma rays, and high-temperature steam. Before and after such aging treatments, samples' mechanical and thermal properties and infrared and THz absorption spectra were measured. As a result, it has become clear that FR-XLPO is fairly resistant to superheated steam with no oxygen, although it is easily degraded thermally if oxygen is present. It is also resistant to gamma rays to a certain extent.

Original language	English
Pages (from-to)	1556-1562
Number of pages	7
Journal	IEEJ Transactions on Electrical and Electronic Engineering
Volume	16
Issue number	12
DOIs	https://doi.org/10.1002/tee.23477
Publication status	Published - 2021 Dec

Keywords

cable
insulation material
nuclear power plant
superheated steam
tensile test

ASJC Scopus subject areas

Electrical and Electronic Engineering

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10.1002/tee.23477

Cite this

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title = "Various Characteristics of Severely Aged Flame-Retardant Cross-Linked Polyolefin",

abstract = "Flame-retardant cross-linked polyolefin (FR-XLPO), is widely used as insulators for electric cables. Several cables installed in nuclear power plants must be functional even when they suffer a severe accident. Therefore, sheets of FR-XLPO were exposed to heat, gamma rays, and high-temperature steam. Before and after such aging treatments, samples' mechanical and thermal properties and infrared and THz absorption spectra were measured. As a result, it has become clear that FR-XLPO is fairly resistant to superheated steam with no oxygen, although it is easily degraded thermally if oxygen is present. It is also resistant to gamma rays to a certain extent.",

keywords = "cable, insulation material, nuclear power plant, superheated steam, tensile test",

author = "Haolong Zhou and Naoshi Hirai and Yoshimichi Ohki",

note = "Funding Information: This research was performed under the research entrusted by the Secretariat of the Nuclear Regulation Authority in Japan. Publisher Copyright: {\textcopyright} 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.",

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T1 - Various Characteristics of Severely Aged Flame-Retardant Cross-Linked Polyolefin

AU - Zhou, Haolong

AU - Hirai, Naoshi

AU - Ohki, Yoshimichi

N1 - Funding Information: This research was performed under the research entrusted by the Secretariat of the Nuclear Regulation Authority in Japan. Publisher Copyright: © 2021 Institute of Electrical Engineers of Japan. Published by Wiley Periodicals LLC.

PY - 2021/12

Y1 - 2021/12

N2 - Flame-retardant cross-linked polyolefin (FR-XLPO), is widely used as insulators for electric cables. Several cables installed in nuclear power plants must be functional even when they suffer a severe accident. Therefore, sheets of FR-XLPO were exposed to heat, gamma rays, and high-temperature steam. Before and after such aging treatments, samples' mechanical and thermal properties and infrared and THz absorption spectra were measured. As a result, it has become clear that FR-XLPO is fairly resistant to superheated steam with no oxygen, although it is easily degraded thermally if oxygen is present. It is also resistant to gamma rays to a certain extent.

AB - Flame-retardant cross-linked polyolefin (FR-XLPO), is widely used as insulators for electric cables. Several cables installed in nuclear power plants must be functional even when they suffer a severe accident. Therefore, sheets of FR-XLPO were exposed to heat, gamma rays, and high-temperature steam. Before and after such aging treatments, samples' mechanical and thermal properties and infrared and THz absorption spectra were measured. As a result, it has become clear that FR-XLPO is fairly resistant to superheated steam with no oxygen, although it is easily degraded thermally if oxygen is present. It is also resistant to gamma rays to a certain extent.

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KW - insulation material

KW - nuclear power plant

KW - superheated steam

KW - tensile test

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Various Characteristics of Severely Aged Flame-Retardant Cross-Linked Polyolefin

Abstract

Keywords

ASJC Scopus subject areas

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