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The evolution of the dielectric constant in various polymers subjected to uniaxial stretch

Cohen, Noy and Oren, Shai Shalom and deBotton, Gal (2017) The evolution of the dielectric constant in various polymers subjected to uniaxial stretch. Extreme Mechanics Letters, 16 . pp. 1-5. ISSN 2352-4316. https://resolver.caltech.edu/CaltechAUTHORS:20170821-134234260

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Abstract

Dielectric elastomers (DEs) are materials that deform in response to electric excitation, an attractive feature that deems them suitable for various actuation-based devices. The growing interest in these materials leads to many intriguing questions regarding the origin of the electro-mechanical coupling and its relation to the dielectric constant. This work examines the coupled response of four dielectrics: VHB 4910, Polytetrauoroethylene (PTFE), High-density polyethylene (HDPE) and Low-density polyethylene (LDPE). We demonstrate the substantial dependence of their dielectric constants on the deformations. These findings are compared to a recent statistical-mechanics based model which takes into account the structure of the dielectric. A good agreement is found between the theoretical model and the experimental measurements.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.eml.2017.08.003DOIArticle
http://www.sciencedirect.com/science/article/pii/S2352431617301001PublisherArticle
ORCID:
AuthorORCID
Cohen, Noy0000-0003-2224-640X
deBotton, Gal0000-0003-3608-1896
Additional Information:© 2017 Elsevier Ltd.
Subject Keywords:Dielectrics; Electrostriction; Electro-mechanics; EAPs
Record Number:CaltechAUTHORS:20170821-134234260
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20170821-134234260
Official Citation:Noy Cohen, Shai Shalom Oren, Gal deBotton, The evolution of the dielectric constant in various polymers subjected to uniaxial stretch, Extreme Mechanics Letters, Volume 16, October 2017, Pages 1-5, ISSN 2352-4316, https://doi.org/10.1016/j.eml.2017.08.003. (http://www.sciencedirect.com/science/article/pii/S2352431617301001)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:80645
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:21 Aug 2017 20:49
Last Modified:03 Oct 2019 18:33

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