&lt;title&gt;Electroactive polymers (EAP) low-mass muscle actuators&lt;/title&gt;

Bar‐Cohen, Yoseph; Xue, T.; Joffe, Benjamin; Lih, Shyh-Shiuh; Shahinpoor, Mohsen; Harrison, Joycelyn S.; Smith, Joseph G.; Willis, Paul

doi:10.1117/12.275721

Cited by 18 publications

(10 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mechanical strain generated by soft, elastic IEAPs under application of few volts ( 4 V) can be up to two orders of magnitude larger than that generated by fragile and rigid EACs under application of several hundred volts. 4,5 IEAPs also have significantly higher resilience and lower density compared to SMAs. 6 These properties, together with high flexibility, make IEAPs quite a favorable material for soft actuators.…”

mentioning

confidence: 99%

Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

Montazami

Liu

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

Multilayered gold/silica nanoparticulate bilayer devices using layer-by-layer self organisation for flexible bending and pressure sensing applications Appl. Phys. Lett. 104, 073106 (2014) ) and large net intrinsic strain (6.1%). The results demonstrate that curvature and net strain of IEAP actuators due to motion of the anions increase linearly with the thickness of the CNC as a result of the increased volume in which the anions can be stored. In addition, after subtracting the curvature of a bare Nafion actuator without a CNC, it is found that the net intrinsic strain of the CNC layer is independent of thickness for the range of 20-80 nm, indicating that the entire CNC volume contributes equivalently to the actuator motion. Furthermore, the response time of the actuator due to anion motion is independent of CNC thickness, suggesting that traversal through the Nafion membrane is the limiting factor in the anion motion.

show abstract

mentioning

confidence: 99%

Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

Montazami

Liu

et al. 2011

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…(See Figure 5). Composite Acuator Further processing, (details found elsewhere [ 15,16,17]) allow for the ion exchange of selected ions (eg., . feature of these perfluorinated membranes is their ability to selectively allow water molecules and cations to move through its porous structure while blocking the motion of anions.…”

Section: Ionic Conducting Polymer Actuatorsmentioning

confidence: 99%

Compliant Actuators Based on Electroactive Polymers

Wax

Sands²,

Buckley

1999

MRS Proc.

View full text Add to dashboard Cite

The field of Electroactive Polymers has experienced a considerable amount of expansion over the last decade. Much of this work has been concentrated on developing polymeric materials that mimic biological systems or that exhibit electronic and optical properties similar to inorganic materials. This paper briefly reviews some of the nearer term applications that electroactive polymers might impact: image processing and sonar. In addition, a review of compliant actuators based on the unique properties inherent in electroactive polymers is provided. Emphasis will be placed on the mechanisms responsible for actuation and on the limited mechanical, electrical and chemical data current available. A comparison between mammalian muscle properties and electroactive polymer actuator properties is provided.

show abstract

“…Composites of Nafion and platinum have also been used in the area of electroactive polymer actuators by Shahinpoor et al, [7][8][9][10] based on the electrochemical migration of ions inside the platinum plated Nafion membrane. Thus Nafion could be visualized as serving a dual purpose: (i) a flexible polyelectrolyte matrix, which facilitates migration and storage of ions, and (ii) a network of mobile positive and negative ions that can interact with SWNTs forming a double layer charge.…”

Section: Introductionmentioning

confidence: 98%

Carbon Nanotube/Polyelectrolyte Composites as Novel Actuator Materials

et al. 2000

View full text Add to dashboard Cite

Mechanical actuators that simultaneously provide high power densities and large force generation capacities are of great scientific and technological interest. Recently single wall carbon nanotube (SWNT) papers ("bucky" papers) were shown to possess significant promise as electrochemical actuators. Embedding polyelectrolytes, like Nafion, within the nanotube matrix has the potential to address the limitations of SWNT bundling and tube slippage thus increasing force generation. In this paper two types of Nafion/SWNT composite actuators have been investigated depending on the method of fabrication. In the first case, infiltration of Nafion within SWNT paper matrix was followed by annealing at 150 °C to invert Nafion's micellar structure and render it insoluble. This has resulted in a substantially exfoliated layer morphology that causes a reduction in both conductivity and actuation strain (c.a. 0.03%). In the second case, slow casting of a methanolic suspension of Nafion and SWNT soot, followed by annealing at 150 °C, resulted in a more homogeneous structure. This composite, upon electrochemical cycling between -1 and +1 V in aqueous electrolytes, exhibited actuation strains (as high as 0.43%). However, these higher strains are accompanied by an order of magnitude reduction in modulus largely due to Nafion swelling.

show abstract

<title>Electroactive polymers (EAP) low-mass muscle actuators</title>

Cited by 18 publications

References 5 publications

Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

Thickness dependence of curvature, strain, and response time in ionic electroactive polymer actuators fabricated via layer-by-layer assembly

Compliant Actuators Based on Electroactive Polymers

Carbon Nanotube/Polyelectrolyte Composites as Novel Actuator Materials

Contact Info

Product

Resources

About