Scalable design of DEAP for energy harvesting utilizing PolyPower

Benslimane, Mohamed; Tryson, Michael J.; Oubak, Jakob; Kiil, Hans-Erik

doi:10.1117/12.880425

Cited by 7 publications

(9 citation statements)

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“…Taking practical restraints into consideration, the silicone became the favored elastomer, as there was no need for heavy support structures to maintain the large pre‐strains required for the IPN. In a similar study, Berardi et al investigated the Danfoss PolyPower films and came to the same favorable conclusions for silicones.…”

Section: Investigated Silicone Materials For Dielectric Elastomersmentioning

confidence: 59%

The Current State of Silicone-Based Dielectric Elastomer Transducers

Madsen

Daugaard

Hvilsted

et al. 2016

Macromol. Rapid Commun.

369

392

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Silicone elastomers are promising materials for dielectric elastomer transducers (DETs) due to superior properties such as high efficiency, reliability and fast response times. DETs consist of thin elastomer films sandwiched between compliant electrodes, and they constitute an interesting class of transducer due to their inherent lightweight and potentially large strains. For the field to progress towards industrial implementation, a leap in material development is required, specifically targeting longer lifetime and higher energy densities to provide more efficient transduction at lower driving voltages. In this review the current state of silicone elastomers for DETs is summarised and critically discussed, including commercial elastomers, composites, polymer blends, grafted elastomers and complex network structures. For future developments in the field it is essential that all aspects of the elastomer are taken into account, namely dielectric losses, lifetime and the very often ignored polymer network integrity and stability.Complete Manuscript

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Section: Investigated Silicone Materials For Dielectric Elastomersmentioning

confidence: 59%

The Current State of Silicone-Based Dielectric Elastomer Transducers

Madsen

Daugaard

Hvilsted

et al. 2016

Macromol. Rapid Commun.

369

392

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“…Metals are better electron conductors compared to carbon‐based materials but they yield small strains due to their large stiffness. Patterned metallic electrodes (such as liquid or solid metals) and metallic thin films on corrugated membranes have resolved this issue to some extent, but the strains are below 100%. Alternative materials including hydrogels with high ionic conductivity (Figure C), single‐walled carbon nanotubes (SWNTs), and silver nanowires are employed as optically transparent electrodes for DEAs.…”

Section: Artificial Muscles: Working Mechanism Properties and Limitmentioning

confidence: 99%

Artificial Muscles: Mechanisms, Applications, and Challenges

2017

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The area of artificial muscle is a highly interdisciplinary field of research that has evolved rapidly in the last 30 years. Recent advances in nanomaterial fabrication and characterization, specifically carbon nanotubes and nanowires, have had major contributions in the development of artificial muscles. However, what can artificial muscles really do for humans? This question is considered here by first examining nature's solutions to this design problem and then discussing the structure, actuation mechanism, applications, and limitations of recently developed artificial muscles, including highly oriented semicrystalline polymer fibers; nanocomposite actuators; twisted nanofiber yarns; thermally activated shape-memory alloys; ionic-polymer/metal composites; dielectric-elastomer actuators; conducting polymers; stimuli-responsive gels; piezoelectric, electrostrictive, magnetostrictive, and photostrictive actuators; photoexcited actuators; electrostatic actuators; and pneumatic actuators.

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“…The change of stoichiometry to the vicinity of the gelation thresholds is, however, not an option for DEAP purposes since the inreacted polymer (or crosslinker close to the upper gelation threshold) will constitute a significant fraction even relatively far from the 35 gelation threshold 1,26 . This may cause a problem in both largescale processing of DEAP as deposition of the electrodes may result due to the inreacted PDMS which will act as an oil and in the usage of the DEAP where the PDMS may migrate away from the system causing both long-term delamination of electrodes and 40 increased elastic modulus of the material 27 .…”

Section: Vhbmentioning

confidence: 99%