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Thermooxidative aging studies on silicone rubber and lifetime prediction

  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Silicone rubber have been aged in air while under 25% compression at temperature up to 250°C. These studies examined the compression set of silicone rubber at accelerated (elevated) temperatures and were then used to make predictions about compression set at room temperature. The data obtained could be amenable to time-temperature superposition and Arrhenius treatment. The results suggest the presence of two degradation processes with activation energies of 71.6 kJ mol-1 (for temperatures above 165 °C) and 26.08 kJ mol-1 (for temperatures below 165 °C). Based on the extrapolation of the non-Arrhenius behavior, it was estimated that significant compression set loss would occur after around 67 years at 25 °C.

Original languageEnglish
Title of host publicationEnvironmental Biotechnology and Materials Engineering 2013
Pages11-14
Number of pages4
DOIs
StatePublished - 2013
Event2013 International Conference on Environmental Biotechnology and Materials Engineering, EBME 2013 - Tianjin, China
Duration: 23 Aug 201325 Aug 2013

Publication series

NameAdvanced Materials Research
Volume777
ISSN (Print)1022-6680

Conference

Conference2013 International Conference on Environmental Biotechnology and Materials Engineering, EBME 2013
Country/TerritoryChina
CityTianjin
Period23/08/1325/08/13

Keywords

  • Activation energy
  • Aging
  • Compression set
  • Lifetime prediction
  • Non-Arrhenius
  • Silicone rubber

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