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Polymers
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Elastomers in Electronic Applications in 2022
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Elastomers in Electronic Applications in 2022

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Processing and Engineering".

Deadline for manuscript submissions: closed (15 September 2022) | Viewed by 8187

Special Issue Editor

Dr. Sungjune Park

E-Mail Website
Guest Editor
Department of Polymer-Nano Science and Technology, Department of Nano Convergence Engineering, Jeonbuk National University, Jeonju 13557, Korea
Interests: polymer; surface and interface; elastomer; soft and stretchable electronic; liquid metal; sensors; catalysts

Special Issue Information

There is a growing interest in soft and stretchable electronics for applications in soft robotics, bioelectronics, and wearable and conformal electronics. Elastomeric polymers are commonly used for fabricating soft devices due to their well-suited mechanical behavior. Elastomers are not intrinsically conductive; however, there are many approaches that have been developed to create soft devices using elastomers in the past decade. In this Special Issue, we focus on elastomers in electronic applications that discuss their fabrication methods, mechanical and physical behavior, and electronic device applications. The purpose of this Special Issue is to coherently collect these studies and present them to a wide industrial and academic community.

Dr. Sungjune Park
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Elastomers
  • Soft and stretchable electronics
  • Dielectric elastomers
  • Elastomeric composites
  • Conductive polymers

Published Papers (2 papers)

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Research

13 pages, 2383 KiB  
Article
Dielectric Elastomer Fiber Actuators with Aqueous Electrode
by Keita Shimizu, Toshiaki Nagai and Jun Shintake
Polymers 2021, 13(24), 4310; https://doi.org/10.3390/polym13244310 - 9 Dec 2021
Cited by 10 | Viewed by 3770
Abstract
Dielectric elastomer actuators (DEAs) are one of the promising actuation technologies for soft robotics. This study proposes a fiber-shaped DEA, namely dielectric elastomer fiber actuators (DEFAs). The actuator consisted of a silicone tube filled with the aqueous electrode (sodium chloride solution). Furthermore, it [...] Read more.
Dielectric elastomer actuators (DEAs) are one of the promising actuation technologies for soft robotics. This study proposes a fiber-shaped DEA, namely dielectric elastomer fiber actuators (DEFAs). The actuator consisted of a silicone tube filled with the aqueous electrode (sodium chloride solution). Furthermore, it could generate linear and bending actuation in a water environment, which acts as the ground side electrode. Linear-type DEFA and bending-type DEFA were fabricated and characterized to prove the concept. A mixture of Ecoflex 00–30 (Smooth-On) and Sylgard 184 (Dow Corning) was employed in these actuators for the tube part, which was 75.0-mm long with outer and inner diameters of 6.0 mm and 5.0 mm, respectively. An analytical model was constructed to design and predict the behavior of the devices. In the experiments, the linear-type DEFA exhibited an actuation strain and force of 1.3% and 42.4 mN, respectively, at 10 kV (~20 V/µm) with a response time of 0.2 s. The bending-type DEFA exhibited an actuation angle of 8.1° at 10 kV (~20 V/µm). Subsequently, a jellyfish-type robot was developed and tested, which showed the swimming speed of 3.1 mm/s at 10 kV and the driving frequency of 4 Hz. The results obtained in this study show the successful implementation of the actuator concept and demonstrate its applicability for soft robotics. Full article
(This article belongs to the Special Issue Elastomers in Electronic Applications in 2022)
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9 pages, 2420 KiB  
Article
An Ultrastretchable Electrical Switch Fiber with a Magnetic Liquid Metal Core for Remote Magnetic Actuation
by Kyeongmin Hong, Minjae Choe, Seoyeon Kim, Hye-Min Lee, Byung-Joo Kim and Sungjune Park
Polymers 2021, 13(15), 2407; https://doi.org/10.3390/polym13152407 - 22 Jul 2021
Cited by 24 | Viewed by 3434
Abstract
In this work we describe a soft and ultrastretchable fiber with a magnetic liquid metal (MLM) core for electrical switches used in remote magnetic actuation. MLM was prepared by removing the oxide layer on the liquid metal and subsequent mixing with magnetic iron [...] Read more.
In this work we describe a soft and ultrastretchable fiber with a magnetic liquid metal (MLM) core for electrical switches used in remote magnetic actuation. MLM was prepared by removing the oxide layer on the liquid metal and subsequent mixing with magnetic iron particles. We used SEBS (poly[styrene-b-(ethylene-co-butylene)-b-styrene]) and silicone to prepare stretchable elastic fibers. Once hollow elastic fibers form, MLM was injected into the core of the fiber at ambient pressure. The fibers are soft (Young’s modulus of 1.6~4.4 MPa) and ultrastretchable (elongation at break of 600~5000%) while maintaining electrical conductivity and magnetic property due to the fluidic nature of the core. Magnetic strength of the fibers was characterized by measuring the maximum effective distance between the magnet and the fiber as a function of iron particle concentration in the MLM core and the polymeric shell. The MLM core facilitates the use of the fiber in electrical switches for remote magnetic actuation. This ultrastretchable and elastic fiber with MLM core can be used in soft robotics, and wearable and conformal electronics. Full article
(This article belongs to the Special Issue Elastomers in Electronic Applications in 2022)
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