Designing reliable silicone elastomers for high-temperature applications

Elisa Ogliani, Liyun Yu, Piotr Mazurek, Anne Ladegaard Skov*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Reliability and durability are strict requirements for silicone elastomers employed in high-temperature applications, if long-time device performance is desired. Improving the thermal stability of silicone elastomers is a major challenge, addressed by both the scientific and the industrial community. Nevertheless, traditional methods such as adding heat-resistant fillers or chemical modifications still suffer from considerable shortcomings. Here, it is demonstrated that the thermal degradation behavior of silicone elastomers is affected strongly by network reactant stoichiometry. Comparative thermal degradation studies were performed on silicone elastomers synthesized with different stoichiometric ratios—and thereby different fractions of elastic, dangling, and sol structures. With the reported findings, we demonstrate how to optimize the stoichiometric ratio used to prepare silicone elastomers, in order to enhance their thermal stability by simple means in high-temperature applications.
Original languageEnglish
JournalPolymer Degradation and Stability
Pages (from-to)175-180
Publication statusPublished - 2018


  • Thermal degradation mechanisms
  • Thermal stability
  • Silicone elastomers


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