Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging

Yu Miyazaki; Naoshi Hirai; Yoshimichi Ohki

doi:10.1109/ICD46958.2020.9341944

Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging

Yu Miyazaki, Naoshi Hirai, Yoshimichi Ohki

Kagami Memorial Research Institute for Materials Science and Technology

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

Abstract

The degradation behavior of cross-linked polyethylene (XLPE) exposed to heat and radiation was investigated, focusing on its changes in chemical structure and mechanical properties. Infrared absorption spectroscopy (FT-IR), differential scanning calorimetry (DSC), and tensile tests were conducted. At the aging condition becomes more severe, the absorption due to carbonyl groups increases. In accord with this, the elongation at break decreases exponentially, while the enthalpy of fusion due to the melting of crystals decreases. When XLPE is exposed to heat and radiation, it is oxidized, which lowers the crystallinity and makes the crystals smaller. As a result, the mechanical properties of XLPE become degraded.

Original language	English
Title of host publication	Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	45-48
Number of pages	4
ISBN (Electronic)	9781728189833
DOIs	https://doi.org/10.1109/ICD46958.2020.9341944
Publication status	Published - 2020 Jul 5
Event	3rd IEEE International Conference on Dielectrics, ICD 2020 - Virtual, Valencia, Spain Duration: 2020 Jul 5 → 2020 Jul 9

Publication series

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

Conference

Conference	3rd IEEE International Conference on Dielectrics, ICD 2020
Country/Territory	Spain
City	Virtual, Valencia
Period	20/7/5 → 20/7/9

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/ICD46958.2020.9341944

Cite this

Miyazaki, Y., Hirai, N., & Ohki, Y. (2020). Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging. In Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020 (pp. 45-48). [9341944] (Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICD46958.2020.9341944

Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging. / Miyazaki, Yu; Hirai, Naoshi ; Ohki, Yoshimichi.

Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 45-48 9341944 (Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020).

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

Miyazaki, Y, Hirai, N & Ohki, Y 2020, Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging. in Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020., 9341944, Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020, Institute of Electrical and Electronics Engineers Inc., pp. 45-48, 3rd IEEE International Conference on Dielectrics, ICD 2020, Virtual, Valencia, Spain, 20/7/5. https://doi.org/10.1109/ICD46958.2020.9341944

Miyazaki Y, Hirai N , Ohki Y. Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging. In Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 45-48. 9341944. (Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020). doi: 10.1109/ICD46958.2020.9341944

Miyazaki, Yu ; Hirai, Naoshi ; Ohki, Yoshimichi. / Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging. Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 45-48 (Proceedings of the 2020 IEEE 3rd International Conference on Dielectrics, ICD 2020).

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abstract = "The degradation behavior of cross-linked polyethylene (XLPE) exposed to heat and radiation was investigated, focusing on its changes in chemical structure and mechanical properties. Infrared absorption spectroscopy (FT-IR), differential scanning calorimetry (DSC), and tensile tests were conducted. At the aging condition becomes more severe, the absorption due to carbonyl groups increases. In accord with this, the elongation at break decreases exponentially, while the enthalpy of fusion due to the melting of crystals decreases. When XLPE is exposed to heat and radiation, it is oxidized, which lowers the crystallinity and makes the crystals smaller. As a result, the mechanical properties of XLPE become degraded.",

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N2 - The degradation behavior of cross-linked polyethylene (XLPE) exposed to heat and radiation was investigated, focusing on its changes in chemical structure and mechanical properties. Infrared absorption spectroscopy (FT-IR), differential scanning calorimetry (DSC), and tensile tests were conducted. At the aging condition becomes more severe, the absorption due to carbonyl groups increases. In accord with this, the elongation at break decreases exponentially, while the enthalpy of fusion due to the melting of crystals decreases. When XLPE is exposed to heat and radiation, it is oxidized, which lowers the crystallinity and makes the crystals smaller. As a result, the mechanical properties of XLPE become degraded.

AB - The degradation behavior of cross-linked polyethylene (XLPE) exposed to heat and radiation was investigated, focusing on its changes in chemical structure and mechanical properties. Infrared absorption spectroscopy (FT-IR), differential scanning calorimetry (DSC), and tensile tests were conducted. At the aging condition becomes more severe, the absorption due to carbonyl groups increases. In accord with this, the elongation at break decreases exponentially, while the enthalpy of fusion due to the melting of crystals decreases. When XLPE is exposed to heat and radiation, it is oxidized, which lowers the crystallinity and makes the crystals smaller. As a result, the mechanical properties of XLPE become degraded.

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Changes in Chemical Structure and Mechanical Properties Induced in Cross-linked Polyethylene by Thermal and Radiation Aging

Abstract

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