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Article

Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers

1
Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany
2
Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721302, West Bengal, India
3
Christian-Albrechts-Universität zu Kiel, 24143 Kiel, Germany
4
Institut für Werkstoffwissenschaft, Technische Universität Dresden, 01069 Dresden, Germany
5
Institut für Textilmaschinen und Textile Hochleistungswerkstofftechnik, Technische Universität Dresden, 01069 Dresden, Germany
6
Ingénierie des Matériaux Polymères, Université Claude Bernard Lyon1, 69100 Villeurbanne, France
7
Engineering and Natural Sciences, Tampere University, 33720 Tampere, Finland
*
Authors to whom correspondence should be addressed.
Polymers 2020, 12(11), 2694; https://doi.org/10.3390/polym12112694
Received: 26 October 2020 / Revised: 12 November 2020 / Accepted: 13 November 2020 / Published: 16 November 2020
(This article belongs to the Special Issue Multifunctional Polymer Nanocomposites)
Dielectric elastomers (DEs) represent a class of electroactive polymers that deform due to electrostatic attraction between oppositely charged electrodes under a varying electric field. Over the last couple of decades, DEs have garnered considerable attention due to their much-coveted actuation properties. As far as the precise measurement systems are concerned, however, there is no standard instrument or interface to quantify various related parameters, e.g., actuation stress, strain, voltage and creeping etc. In this communication, we present an in-depth study of dielectric actuation behavior of dielectric rubbers by the state-of-the-art “Dresden Smart Rubber Analyzer” (DSRA), designed and developed in-house. The instrument allowed us to elucidate various factors that could influence the output efficiency of the DEs. Herein, several non-conventional DEs such as hydrogenated nitrile rubber, nitrile rubber with different acrylonitrile contents, were employed as an electro-active matrix. The effect of viscoelastic creeping on the prestrain, molecular architecture of the matrices, e.g., nitrile content of nitrile-butadiene rubber (NBR) etc., are also discussed in detail. View Full-Text
Keywords: dielectric elastomers (DEs); nitrile rubber; hydrogenated nitrile rubber; actuation; stress relaxation; prestrain dielectric elastomers (DEs); nitrile rubber; hydrogenated nitrile rubber; actuation; stress relaxation; prestrain
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MDPI and ACS Style

Kumar, M.; Sharma, A.; Hait, S.; Wießner, S.; Heinrich, G.; Arief, I.; Naskar, K.; Stöckelhuber, K.W.; Das, A. Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers. Polymers 2020, 12, 2694. https://doi.org/10.3390/polym12112694

AMA Style

Kumar M, Sharma A, Hait S, Wießner S, Heinrich G, Arief I, Naskar K, Stöckelhuber KW, Das A. Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers. Polymers. 2020; 12(11):2694. https://doi.org/10.3390/polym12112694

Chicago/Turabian Style

Kumar, Mayank, Anutsek Sharma, Sakrit Hait, Sven Wießner, Gert Heinrich, Injamamul Arief, Kinsuk Naskar, Klaus W. Stöckelhuber, and Amit Das. 2020. "Effect of Prestrain on the Actuation Characteristics of Dielectric Elastomers" Polymers 12, no. 11: 2694. https://doi.org/10.3390/polym12112694

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