Frequency dependent behavior of silicone slide-ring elastomers

Jakob-Anhtu Tran, Jeppe Madsen, Anne Ladegaard Skov*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

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Abstract

Slide-ring elastomers consist of mobile cross-links that can rearrange themselves within the network in contrast to conventional elastomers with fixed junctures. This unique feature affects the macroscopic mechanical properties of the sliding elastomers by imparting a distinct sliding elasticity that is caused by the distribution entropy of the sliding crosslinks. Slide-ring silicone elastomers exhibit two distinct time dependent elastic responses that can be credited to the conformational entropy of the polysiloxane chains and the distribution entropy of the threaded rings. In this work, the transition between rubber elasticity of the silicone chains and the sliding elasticity of the rings has been observed through linear viscoelastic studies. The extensional properties of the elastomers further corroborated the presence of two distinct time dependent viscoelastic profiles. This novel network structure presents the potential to design more intricate dielectric elastomer transducers with two distinctive modes of behavior determined by the operational speed of the syste
Original languageEnglish
Title of host publicationElectroactive Polymer Actuators and Devices (EAPAD) XXIII
EditorsIain A. Anderson, Herbert R. Shea, John D. W. Madden
Number of pages7
Volume11587
PublisherSPIE - International Society for Optical Engineering
Publication date2021
Article number1158716
DOIs
Publication statusPublished - 2021
EventSPIE Smart Structures + Nondestructive Evaluation - Online event
Duration: 22 Mar 202127 Mar 2021

Conference

ConferenceSPIE Smart Structures + Nondestructive Evaluation
LocationOnline event
Period22/03/202127/03/2021

Keywords

  • Silicone
  • Slide-ring elastomer
  • DEA
  • Polyrotaxane
  • Sliding transition

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