Polymer materials as actuators or artificial muscle

Polymer materials as actuators or artificial muscle

Polymer gel is associate degree electroactive polymer material. There are numerous kinds of electroactive polymeric materials. As mentioned within the on top of section, electrolyte is one in all them associate degree is most ordinarily investigated as an electroactive gel. We are going to return to debate this material in additional detail within the next section. Ferroelectric polymer materials like PVDF or its derivatives ar mentioned, since they behave as ferroelectric materials (see Fig. 1).

Fig. 1

They need crystalline and therefore the crystals show polymorphism by dominant the preparation methodology. Abundant elaborate work has been applied on electricity and/or pyroelectrical properties, in conjunction with their characteristics as electro active actuators. These materials have long been mentioned as typical electro active polymers. Through these materials, it's thought of that the strain evoked within the polymer materials isn't giant. The electrostrictive constant is understood to be tiny for polymers. These are non-ionic polymers and therefore the evoked strains originate from the reorientation or the deformation of polarized crystallites within the solid materials. There’s another kind of electrically active polymer that's called the electro conductive polymer, during which polymer chains contain long conjugated double bonds, and this chemical structure adds electro conductive properties to the polymers. In these cases, the electrically evoked deformation is taken into account to own originated from the chemical science reactions like the oxidization and reduction of the polymer chain. For the deformation, some additives like do pants are famed to 

Fig. 2

be necessary for effective exploit. Therefore, the electrical exploit of those materials has been investigated within the presence of water, almost like the case of electrolyte gels. Polypyrrole and polyaniline ar typical examples (see Fig. 2).