Electromechanical properties of novel large strain PolyPower film and laminate components for DEAP actuator and sensor applications

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

doi:10.1117/12.847700

Cited by 40 publications

(39 citation statements)

References 9 publications

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“…The company has recently developed a new optimized corrugated profile with up to 80% strain in the compliant direction [60], and the replacement of the silver electrode by another metal could reduce the fabrication costs. The downside of the Danfoss material is the directionality of the compliance.…”

Section: Energy Harvestingmentioning

confidence: 99%

“…The infrastructure allows the coating of different metals, and a roll-to-roll masking mechanism can be used to pattern the electrode, if needed. Recent research effort for the optimization of the corrugation profile has lead to metallized membranes capable of sustaining a strain of 80% without inducing damages to the metallic layer, by using a mold profile with a 1:1 height over period ratio [60]. The authors have computed an experimental "compliance factor" describing the stiffness of the coated membrane in the compliant direction, and estimated that the new profile is about 4.5 times more compliant than the previous one, which should lead to a strain gain for the same applied electric field when use in a DEA configuration.…”

Section: Metal Thin-film Electrodes On Corrugated Membranesmentioning

confidence: 99%

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Flexible and stretchable electrodes for dielectric elastomer actuators

2012

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Dielectric elastomer actuators (DEAs) are flexible lightweight actuators that can generate strains of over 100%. They are used in applications ranging from haptic feedback (mm-sized devices), to cm-scale soft robots, to meter-long blimps. DEAs consist of an electrode-elastomer-electrode stack, placed on a frame. Applying a voltage between the electrodes electrostatically compresses the elastomer, which deforms in-plane or out-of plane depending on design. Since the electrodes are bonded to the elastomer, they must reliably sustain repeated very large deformations while remaining conductive, and without significantly adding to the stiffness of the soft elastomer. The electrodes are required for electrostatic actuation, but also enable resistive and capacitive sensing of the strain, leading to self-sensing actuators. This review compares the different technologies used to make compliant electrodes for DEAs in terms of: impact on DEA device performance (speed, efficiency, maximum strain), manufacturability, miniaturization, the integration of self-sensing and selfswitching, and compatibility with low-voltage operation. While graphite and carbon black have been the most widely used technique in research environments, alternative methods are emerging which combine compliance, conduction at over 100% strain with better conductivity and/or ease of patternability, including microfabrication-based approaches for compliant metal thin-films, metal-polymer nano-composites, nanoparticle implantation, and reel-to-reel production of µm-scale patterned thin films on elastomers. Such electrodes are key to miniaturization, low-voltage operation, and widespread commercialization of DEAs.

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Section: Energy Harvestingmentioning

confidence: 99%

Section: Metal Thin-film Electrodes On Corrugated Membranesmentioning

confidence: 99%

Flexible and stretchable electrodes for dielectric elastomer actuators

2012

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“…Another that has both depth and period of 7 μm and this is capable of stretching up to about 80% strain. [1,6] …”

Section: Carrier Webmentioning

confidence: 99%

Hot-embossing of microstructures on addition-curing polydimethylsiloxane films

Vudayagiri

Hassouneh

et al. 2013

SPIE Proceedings

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To our knowledge no known technologies or processes are commercially available for embossing microstructures and sub-micron structures on elastomers like silicones in large scale production of films. The predominantly used technologies to make micro-scale components for micro-fluidic devices and microstructures on PDMS elastomer are 1) reaction injection molding 2) UV lithography and 3) photolithography, which all are time-consuming and not suitable for large scale productions. A hot-embossing process to impart micro-scale corrugations on an addition curing vinyl terminated PDMS (polydimethyl siloxane) film, which is thermosetting elastomer, was established based on the existing and widely applied technology for thermoplasts. We focus on hot-embossing as it is one of the simplest, most costeffective and time saving methods for replicating structures for thermoplasts. Addition curing silicones are shown to possess the ability to capture and retain an imprint made on it 10-15 minutes after the gel-point at room temperature. This property is exploited in the hot-embossing technology.

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“…[15] Processing LSRs successfully depends on using equipment designed to mix and pump thick materials without introducing air. [16] For thin films this requirement becomes even more important.…”

Section: Introductionmentioning

confidence: 99%

Silicone rubbers for dielectric elastomers with improved dielectric and mechanical properties as a result of substituting silica with titanium dioxide

Skov

2015

International Journal of Smart and Nano Materials

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Electromechanical properties of novel large strain PolyPower film and laminate components for DEAP actuator and sensor applications

Cited by 40 publications

References 9 publications

Flexible and stretchable electrodes for dielectric elastomer actuators

Flexible and stretchable electrodes for dielectric elastomer actuators

Hot-embossing of microstructures on addition-curing polydimethylsiloxane films

Silicone rubbers for dielectric elastomers with improved dielectric and mechanical properties as a result of substituting silica with titanium dioxide

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