Changes in mechanical and dielectric properties of silicone rubber induced by severe aging

S. Ito, N. Hirai, Y. Ohki

Research output: Contribution to journalArticlepeer-review

Abstract

Sheets of silicone rubber (SiR) were aged under various aging conditions to examine its effects on the mechanical and dielectric properties of SiR. Mainly by analyzing the results obtained by mid-infrared absorption spectroscopy, it has become clear that cross-linked structures with siloxane bonds are formed under all the conditions. This makes SiR hard and then brittle, but it also makes better the dielectric properties apparently. An early stage of degradation in SiR can be detected by EAB and complex electric modulus, which is defined as the reciprocal of complex permittivity. Therefore, EAB and complex electric modulus are useful to monitor the aging status of SiR.

Original languageEnglish
Article number9099698
Pages (from-to)722-730
Number of pages9
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Volume27
Issue number3
DOIs
Publication statusPublished - 2020 Jun

Keywords

  • electric modulus
  • elongation at break
  • indenter modulus
  • silicone rubber

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Changes in mechanical and dielectric properties of silicone rubber induced by severe aging'. Together they form a unique fingerprint.

Cite this