A new soft dielectric silicone elastomer matrix with high mechanical integrity and low losses

Though dielectric elastomers (DEs) have many favourable properties, the issue of high driving voltages limits the commercial viability of the technology. Driving voltage can be lowered by decreasing the Young's modulus and increasing the dielectric permittivity of silicone elastomers. A decreas...

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Bibliographic Details
Published inRSC advances Vol. 5; no. 14; pp. 10254 - 10259
Main Authors Madsen, F. B., Yu, L., Daugaard, A. E., Hvilsted, S., Skov, A. L.
Format Journal Article
LanguageEnglish
Published 2015
Subjects
Dielectric constant
Dielectric properties
Dielectrics
Elastomers
Electric potential
Permittivity
Silicones
Voltage
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Summary:Though dielectric elastomers (DEs) have many favourable properties, the issue of high driving voltages limits the commercial viability of the technology. Driving voltage can be lowered by decreasing the Young's modulus and increasing the dielectric permittivity of silicone elastomers. A decrease in Young's modulus, however, is often accompanied by the loss of mechanical stability and thereby the lifetime of the DE. A new soft elastomer matrix, with no loss of mechanical stability and high dielectric permittivity, was prepared through the use of alkyl chloride-functional siloxane copolymers. Furthermore, the increase in dielectric permittivity (43%) was obtained without compromising other important properties of DEs such as viscous and dielectric losses as well as electrical breakdown strength.
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ISSN:2046-2069
2046-2069
DOI:10.1039/C4RA13511C