Ionic electroactive polymer actuators based on nano-carbon electrodes

Asaka, Kinji; Mukai, Ken; Sugino, Takushi; Kiyohara, Kenji

doi:10.1002/pi.4562

Cited by 63 publications

(64 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[7][8][9] Reversible electrochemical reactions drive the reversible generation/destruction of free volume required to lodge/expel those molecules and ions. Electroactive films of different materials are being used to develop artificial muscles: conducting polymers [16][17][18][19][20][21][22][23][24][25][26][27][28][29] , carbon based materials such as carbon nanotubes (CNT) [30][31][32][33][34][35][36][37] and so on. [10][11][12][13][14][15] They are electro-chemo-mechanical transducers.…”

Section: Introductionmentioning

confidence: 99%

Construction and coulodynamic characterization of PPy-DBS-MWCNT/tape bilayer artificial muscles

2016

View full text Add to dashboard Cite

a Polypyrrole-dodecylbenzenesulphonate-multi-walled carbon nanotube (PPy-DBS-MWCNT) films, thick enough (48.6 µm) to be peeled off from the steel electrode, were electrogenerated. Bilayer PPy-DBS-MWCNT/tape artificial muscles were constructed and submitted to potential sweeps with parallel video-recording of their angular displacements. The coulodynamic (angle-charge) responses reveal that the composite shrinks/swells by oxidation/reduction, respectively, due to the reaction-driven cation exchange. Reversible bending movements of 106° occur under faradaic (linear) control of the consumed charge. Minor deviations and hysteresis were identified with irreversible reactions and osmotic processes. The muscle is a faradaic motor.

show abstract

Section: Introductionmentioning

confidence: 99%

Construction and coulodynamic characterization of PPy-DBS-MWCNT/tape bilayer artificial muscles

2016

View full text Add to dashboard Cite

show abstract

“…CPs can be paired with electrolyte separation layers. When this geometry is sandwiched between electrodes, application of an electric field generates imbalances in charges within the electrolyte polymer matrix that trigger swelling (expansion) or deswelling (contraction) 213. CP actuators are fast (>30 Hz) 209.…”

Section: Ionic Electroactive Polymersmentioning

confidence: 99%

Materials as Machines

2020

View full text Add to dashboard Cite

of responsive materials as machines is in robotics. The vision, leadership, and research of Bar-Cohen is seminal in both invigorating and focusing current-day research activities to develop responsive materials [2] and implement [3] them as lightweight, dexterous, and gentle (e.g., soft) robotic elements. In this spirit, this review exhaustively details the materials, the nature of their stimuli-response, and discusses considerations for their implementation in robotic systems and subsystems.Robotics is a well-established but growing field of research. Sustained progress in both performance and functionality continue to be realized in commercial robotic systems largely based on conventional materials and their integration with mechanisms. A recent example is the Atlas robot from Boston Dynamics [4] (Figure 1a). The incorporation of stimuli-responsive materials in robotics has largely focused on component-level demonstrations to extend the performance of a subsystem (such as a hand or gripper).Stimuli-responsive materials, spanning nearly all classes of materials and size scales, are currently subject to widespread examination in corporate, government, and academic research laboratories (Figure 1b-d). [5][6][7] In some cases, these materials have already found widespread commercial implementation in end use and are comparatively mature. The materials and fundamentals of their responses are summarized in Figure 2. Shape memory alloys (SMAs) and ceramic piezoelectric materials are distinctive in that they are hard, stimuli-responsive materials. Deformation of these materials can produce large energy densities due to their inherent stiffness. Electroactive polymers (EAPs) remain a topic of considerable interest, particularly dielectric elastomer actuators (DEAs). Engineered systems are rapidly emerging and enabling performance gains in robotics, largely based on pneumatic or fluidic (such as HASEL [8] actuators) transport processes that localize deformation to generate force or produce motion. Soft materials, such as shape memory polymers (SMPs), hydrogels, and liquid crystalline polymer networks (LCNs) and elastomers (LCEs) may offer distinctive functional performance to robotic systems in allowing local control of deformation without the need for complex interfacing with mechanisms. As will be evident, each of these materials has inherent advantages and performance tradeoffs that must be considered in functional implementations. However, responsive material systems have a common obstacle to widespread use: the performance and Machines are systems that harness input power to extend or advance function. Fundamentally, machines are based on the integration of materials with mechanisms to accomplish tasks-such as generating motion or lifting an object. An emerging research paradigm is the design, synthesis, and integration of responsive materials within or as machines. Herein, a particular focus is the integration of responsive materials to enable robotic (machine) functions such as gripping, lifting, or motility (walk...

show abstract

“…Currently, electroactive polymers (EAP), or ionic polymer–metal composites (IPMCs) have been well developed as actuators, including both ionic and nonionic EAPs such as poly(vinylidene fluoride)‐based (PVDF) polymers, conjugated polymers, and perfluorinated ionomers. Ionic gel actuators comparatively utilize ionic polymers or gels, ionic liquids, and deformable electrodes, which can exhibit several exceptional advantages including large displacements in bending motion, fast switching response, low operating voltage, and ease of fabrication at low costs . Meanwhile, these actuators have wide electrochemical potential windows, high ionic conductivity and low vapor pressure, resulting from the introduction of chemically stable ionic liquids .…”

Section: Ionic‐gel‐based Stretchable Devicesmentioning

confidence: 99%

Ionic Gels and Their Applications in Stretchable Electronics

Wang

Yang

et al. 2018

Macromol. Rapid Commun.

141

View full text Add to dashboard Cite

Ionic gels represent a novel class of stretchable materials where ionic conducting liquid is immobilized in a polymer matrix. This review focuses on the design of ionic gel materials and device fabrication of ionic-gel-based stretchable electronics. In particular, recent progress in ionic-gel-based electronic skin (pressure/strain sensors, electric double-layer transistors, etc.), flexible displays, energy storage devices, and soft actuators are summarized, followed by a discussion of challenges in developing ionic-gel-based electronics and suggestions for future research directions that might overcome those challenges.

show abstract

Ionic electroactive polymer actuators based on nano-carbon electrodes

Cited by 63 publications

References 57 publications

Construction and coulodynamic characterization of PPy-DBS-MWCNT/tape bilayer artificial muscles

Construction and coulodynamic characterization of PPy-DBS-MWCNT/tape bilayer artificial muscles

Materials as Machines

Ionic Gels and Their Applications in Stretchable Electronics

Contact Info

Product

Resources

About