Polimeros Electroactivos

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Types of Electroactive Polymers
Dielectric Electroactive Polymers
Dielectric EAPs, are materials in which actuation is causedby electrostatic forces between two electrodes which squeeze the polymer. Dielectric elastomers are capable of very high strains and are fundamentally a capacitor that changes its capacitance when a voltage is applied byallowing the polymer to compress in thickness and expand in area due to the electric field. This type of EAP typically requires a large actuation voltage to produce high electric fields (hundreds tothousands of volts), but very low electrical powerconsumption. Dielectric EAPs require no power to keep the actuator at a given position. Examples are electrostrictive polymers anddielectric elastomers.Ionic Electroactive Polymers
* Ionic EAPs, in which actuation is caused by the displacement of ions inside the polymer. Only a few volts are needed for actuation, but the ionic flow implies ahigher electrical power needed for actuation, and energy is needed to keep the actuator at a given position. Examples of ionic EAPS are conductive polymers, ionic polymer-metal composites (IPMCs), andresponsive gels. Yet another example is a Bucky gel actuator, which is a polymer-supported layer of polyelectrolyte material consisting of an ionic liquidsandwiched between two electrode layersconsisting of a gel of ionic liquid containing single-wall carbon nanotubes.[12] The name is shaped by similatity on the name of the paper that can be made by filtering carbon nanotubes, the so called buckypaper

Tipos de polímeros electroactivos
Polímeros electroactivos dieléctricas
EAPs dieléctricas, son materiales en los que la actuación es causado por fuerzas electrostáticas entre dos electrodosque exprimen el polímero. Dieléctrica elastómeros son capaces de cepas muy altas y son fundamentalmente un condensador que cambia su capacitancia cuando se aplica un voltaje al permitir que el...