&lt;title&gt;Characterization of the electromechanical properties of ionomeric polymer-metal composite (IPMC)&lt;/title&gt;

Bar‐Cohen, Yoseph; Bao, Xiaoqi; Sherrit, Stewart; Lih, Shyh-Shiuh

doi:10.1117/12.475173

Cited by 57 publications

(41 citation statements)

References 5 publications

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“…Coupled electrical-chemical-mechanical response of IPMCs depends on the structure of the backbone ionic polymer, the morphology and conductivity of the metal electrodes, the nature of the cations, and the level of hydration (or other solvent uptake) 6,35 and the chemical structure of the ionomer backbone. 39 The speed and magnitude of this actuation towards the anode depends on the type of solvent.…”

Section: Effect Of Different Cationsmentioning

confidence: 99%

A review on IPMC material as actuators and sensors: Fabrications, characteristics and applications

Bhandari

Lee

Ahn

2012

Int. J. Precis. Eng. Manuf.

223

135

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In this paper we present a comprehensive review of ionic polymer metal composite (IPMC) covering fundamentals of IPMC; from fabrication processes to control and applications. IPMC is becoming an increasingly popular material among scholars, engineers and scientists due to its inherent property of low activation voltage, large bending strain, i.e., transformation electrical energy to mechanical energy, and properties to be used as bidirectional material, i.e., it can be used as actuators and sensors. Among the diversity of electro active polymers (EAPs), recently developed IPMCs are good candidates for use in bio-related application because of their biocompatibility. Yet, the challenge remains in controlling a somewhat complicated material as mechanical, electrical and chemical properties interact with each other in the ionic polymer. Several IPMC fabrication processes, their mechanical characteristics and performance, a number of recent IPMC applications and pertaining mathematical modeling have been reported in this paper. Also we have attempted to present concisely the control of IPMC and effects of various factors in the performance of IPMC. The applications of IPMC have been growing, and recently more sophisticated IPMC actuator applications have been performed. This indicates that the IPMC actuators hold potential for more sophisticated control application. Extensive references are provided for more indepth explanation.

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Section: Effect Of Different Cationsmentioning

confidence: 99%

A review on IPMC material as actuators and sensors: Fabrications, characteristics and applications

Bhandari

Lee

Ahn

2012

Int. J. Precis. Eng. Manuf.

223

135

View full text Add to dashboard Cite

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“…It was applied a step voltage of U=0.5, 1.0, 1.5, 2.0 and 2.5 during a time long enough (100 s) to occur the back relaxation. Voltages higher than 2.5V were avoided due to the possible hydrolysis of the water and some damages to the platinum electrodes 8 . The parameters K´1, K´2, τ 1 and τ 2 of the Equation 2 were extracted by the experimental data using a non-linear curve-fitting tool based on the Levenberg-Marquardt algorithm in MATLAB.…”

Section: Methodsmentioning

confidence: 99%

“…The PTFE backbone form small crystallites distributed through an amorphous matrix responsible to the hydrophobic phase and have an important role in the mechanical and thermal properties of Nafion [4][5][6] . In response to a step voltage applied on the electrodes of a hydrated Nafion based IPMC sample, the membrane realizes a fast bending movement toward the anode followed by a slow reverse movement toward the cathode 1,2,[7][8][9] . This reverse bending movement is usuallu called by back relaxation 3 .…”

Section: Modelmentioning

confidence: 99%

Study of the Influence of the Hydration Level on the Electromechanical Behavior of Nafion Based Ionomeric Polymer-metal Composites Actuators

et al. 2015

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The ionomeric electroactive polymers-metal composites (IPMC) are materials that realize bending movements in response to an electrical stimulus and can be applied to the artificial muscles development. This paper investigated the influence of the hydration level on the electromechanical behavior of Nafion based IPMC. An experimental apparatus composed by a system to measure the bending force and to control the electrical stimulus and the relative humidity around the sample was developed. The main results indicated that samples with higher hydration level produce larger bending forces, but they show a more expressive back relaxation with lower time constant. A discussion about the results considering some models described in the literature conclude the paper.

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“…These models can be broadly classified into three major categories: black-box model, grey-box model and physics model. Blackbox models are used for empirically deriving relation between the input and the output [3][4][5][6]. These models are based on system identification and curve fitting and are useful for understanding the macroscopic electromechanical behaviour of IPMC [7].…”

Section: Introductionmentioning

confidence: 99%

Ionic polymer–metal composite mechanoelectric transduction: effect of impedance

Tiwari

2012

International Journal of Smart and Nano Materials

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To cite this article: Rashi Tiwari (2012) Ionic polymer-metal composite mechanoelectric transduction: effect of impedance, International Journal of Smart and Nano Materials, 3:4, 275-295, DOI: 10.1080/19475411.2012 Ionic polymer-metal composites (IPMCs) are commonly used as soft actuators due to their electromechanical response. However, the reverse phenomenon, i.e. IPMC's ability to generate charge on application of mechanical strain (mechanoelectric response), is not very well understood. The concept of mechanoelectric transduction and its dependence on complex IPMC architecture comprising of electrode, polymer and composite layer is illustrated with a phenomenological model. The impedance model takes into account the charge transport inside the polymer and layer properties in terms of their impedances. The model lucidly indicates the significance of capacitance in IPMC transduction. The impedance model is used for studying IPMC step and frequency response and the effect of IPMC capacitance on its application as energy harvester.

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<title>Characterization of the electromechanical properties of ionomeric polymer-metal composite (IPMC)</title>

Cited by 57 publications

References 5 publications

A review on IPMC material as actuators and sensors: Fabrications, characteristics and applications

A review on IPMC material as actuators and sensors: Fabrications, characteristics and applications

Study of the Influence of the Hydration Level on the Electromechanical Behavior of Nafion Based Ionomeric Polymer-metal Composites Actuators

Ionic polymer–metal composite mechanoelectric transduction: effect of impedance

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