Electroactive Polymer (EAP) Actuators as Artificial Muscles: by Yoseph Bar-Cohen

By Yoseph Bar-Cohen

In proposal and execution, this e-book covers the sphere of EAP with cautious recognition to all its key features and entire infrastructure, together with the on hand fabrics, analytical versions, processing innovations, and characterization tools. during this moment version the reader is introduced present on promising advances in EAP that experience happened in electrical EAP, electroactive polymer gels, ionomeric polymer-metal composites, carbon nanotube actuators, and more.

Contents

- Preface

- EAP heritage, present prestige, and Infrastructure

- usual Muscle as a organic approach

- Metrics of typical Muscle functionality

- electrical EAP

- Electroactive Polymer Gels

- Ionomeric Polymer-Metal Composites

- Conductive Polymers

- Carbon Nanotube Actuators: Synthesis, homes, and function

- Molecular Scale Electroactive Polymers

- Computational Chemistry

- Modeling and research of Chemistry and Electromechanics

- Electromechanical types for optimum layout and powerful habit of Electroactive Polymers

- Modeling IPMC for layout of Actuation Mechanisms

- Processing and Fabrication options

- tools of trying out and Characterization

- software of Dielectric Elastomer EAP Actuators

- Biologically encouraged Robots

- purposes of EAP to the leisure

- Haptic Interfaces utilizing Electroheological Fluids

- form keep watch over of Precision Gossamer Apertures

- EAP purposes, strength, and demanding situations

- Index

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Extra resources for Electroactive Polymer (EAP) Actuators as Artificial Muscles: Reality, Potential, and Challenges, Second Edition

Sample text

Nonionic polymer gels containing a dielectric solvent can be made to swell under a dc electric field with a significant strain. , 1999]. A 10 × 3 × 2-mm actuator gel was subjected to an electrical field and exhibited bending at angles that were greater than 90 deg at a speed of 60 msec. This phenomenon is attributed to charge injection into the gel and a flow of solvated charges that induce an asymmetric pressure distribution in the gel. Another nonionic gel is poly(vinyl chloride) (PVC), which is generally inactive when subjected to electric fields.

Polyacrylonitrile) are generally activated by a chemical reaction [see Sec. 1], changing from an acid to an alkaline environment causing the gel to become dense or swollen, respectively. , 1998; Liu and Calvert, 2000]. When activated, these gels bend as the cathode side becomes more alkaline and the anode side more acidic. However, the response of this multilayered gel structure is relatively slow because of the need to diffuse ions through the gel. Expanding and shrinking a layered gel from 6 × 6 cm to 3 × 3 cm (see Fig.

1999]. Compared to conventional charge-coupled devices (CCDs), electroactive polymer-based systems are expected to respond about 10 times faster, provide larger pixel arrays at low power, and effectively operate at low light levels. , 1999]. 26 lm/W. Using a CCD calibration method developed by this group, the spectral distribution of the luminance and the photon emission were measured, as shown in Fig. 6. Current studies are seeking to develop active-matrix organic polymer light-emitting displays on both glass and plastic substrates.

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