Binary Silicone Elastomeric Systems with Stepwise Crosslinking as a Tool for Tuning Electromechanical Behavior

Adrian Bele*, Liyun Yu, Mihaela Dascalu, Daniel Timpu, Liviu Sacarescu, Cristian-Dragos Varganici, Daniela Ionita, Dragos Isac, Ana-Lavinia Vasiliu

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Interpenetrating polymer networks (IPNs) represent an interesting approach for tuning the properties of silicone elastomers due to the possible synergism that may occur between the networks. A new approach is presented, which consists of mixing two silicone-based networks with different crosslinking pathways; the first network being cured by condensation route and the second network by UV curing. The networks were mixed in different ratios and the resulted samples yield good mechanical properties (improved elongations, up to 720%, and Young’s modulus, 1 MPa), thermal properties (one glass transition temperature, ~−123C), good dielectric strength (~50 V/µm), and toughness (63 kJ/m3).

Original languageEnglish
Article number211
JournalPolymers
Volume14
Issue number1
Number of pages13
ISSN2073-4360
DOIs
Publication statusPublished - 2022

Keywords

  • Dielectric elastomer transducers
  • Interpenetrating polymer networks
  • Silicone elastomers
  • Wave energy harvesting

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