Degradation of Mechanical and Dielectric Properties of Flame-Retardant Ethylene Propylene Rubber by Thermal Aging

研究成果: Article

抜粋

Thermal degradation was performed at 175, 200, and 250 °C from 100 to 2000 h on flame-retardant ethylene propylene rubber (FR-EPR) with the same compositions as those used in the insulation of a safety-related cable in nuclear power plants. For these samples, indenter modulus (IM), elongation at break, tensile strength, and complex permittivity were measured to clarify mechanical and dielectric properties. Fourier transform infrared absorption and differential scanning calorimetric spectra were also measured to determine structural changes. As a result, it was found that FR-EPR becomes hard by oxidation and crosslinking, and that it becomes brittle as the degradation becomes more severe. In addition, such changes in mechanical properties by the aging occur much earlier than the changes in dielectric properties. Regarding this, IM is a good indicator to examine the degradation degree of FR-EPR.

元の言語English
ページ(範囲)488-495
ページ数8
ジャーナルIEEJ Transactions on Electrical and Electronic Engineering
15
発行部数4
DOI
出版物ステータスPublished - 2020 4 1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

フィンガープリント Degradation of Mechanical and Dielectric Properties of Flame-Retardant Ethylene Propylene Rubber by Thermal Aging' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用