Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer

Yoshimichi Ohki; Takuya Kozai; Marina Komatsu; Naoshi Hirai

doi:10.1109/ICD.2016.7547698

Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer

Yoshimichi Ohki, Takuya Kozai, Marina Komatsu, Naoshi Hirai

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Flame-retardant ethylene-propylene-diene copolymer (FR-EPDM) with the same additives as those used in nuclear power plants was analyzed by terahertz (THz) and infrared (IR) absorption spectroscopy, before and after the irradiation by γ-rays. As a result, it has become clear that THz spectroscopy can indicate the degradation of the FR-EPDM samples better than IR spectroscopy. Namely, the THz spectroscopy can indicate the oxidation of the samples, which is difficult by IR spectroscopy.

Original language	English
Title of host publication	Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	646-649
Number of pages	4
ISBN (Electronic)	9781509028023
DOIs	https://doi.org/10.1109/ICD.2016.7547698
Publication status	Published - 2016 Aug 18
Event	1st IEEE International Conference on Dielectrics, ICD 2016 - Montpellier, France Duration: 2016 Jul 3 → 2016 Jul 7

Publication series

Name	Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016
Volume	2

Other

Other	1st IEEE International Conference on Dielectrics, ICD 2016
Country/Territory	France
City	Montpellier
Period	16/7/3 → 16/7/7

Keywords

ethylene-propylene-diene copolymer
infrared absorption
polymer degradation
terahertz spectroscopy

ASJC Scopus subject areas

Polymers and Plastics
Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering
Ceramics and Composites

Access to Document

10.1109/ICD.2016.7547698

Cite this

Ohki, Y., Kozai, T., Komatsu, M., & Hirai, N. (2016). Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer. In Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016 (pp. 646-649). [7547698] (Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICD.2016.7547698

Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer. / Ohki, Yoshimichi; Kozai, Takuya; Komatsu, Marina; Hirai, Naoshi.

Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016. Institute of Electrical and Electronics Engineers Inc., 2016. p. 646-649 7547698 (Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016; Vol. 2).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ohki, Y, Kozai, T, Komatsu, M & Hirai, N 2016, Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer. in Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016., 7547698, Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016, vol. 2, Institute of Electrical and Electronics Engineers Inc., pp. 646-649, 1st IEEE International Conference on Dielectrics, ICD 2016, Montpellier, France, 16/7/3. https://doi.org/10.1109/ICD.2016.7547698

Ohki Y, Kozai T, Komatsu M, Hirai N. Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer. In Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016. Institute of Electrical and Electronics Engineers Inc. 2016. p. 646-649. 7547698. (Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016). https://doi.org/10.1109/ICD.2016.7547698

Ohki, Yoshimichi ; Kozai, Takuya ; Komatsu, Marina ; Hirai, Naoshi. / Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer. Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016. Institute of Electrical and Electronics Engineers Inc., 2016. pp. 646-649 (Proceedings of the 2016 IEEE International Conference on Dielectrics, ICD 2016).

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title = "Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer",

abstract = "Flame-retardant ethylene-propylene-diene copolymer (FR-EPDM) with the same additives as those used in nuclear power plants was analyzed by terahertz (THz) and infrared (IR) absorption spectroscopy, before and after the irradiation by γ-rays. As a result, it has become clear that THz spectroscopy can indicate the degradation of the FR-EPDM samples better than IR spectroscopy. Namely, the THz spectroscopy can indicate the oxidation of the samples, which is difficult by IR spectroscopy.",

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author = "Yoshimichi Ohki and Takuya Kozai and Marina Komatsu and Naoshi Hirai",

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Terahertz spectroscopic diagnosis of degradation of ethylene-propylene-diene copolymer

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Keywords

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