Segmented copolymer thermoplastic dielectric elastomer thin membrane and dielectric driver of thin membrane

Abstract

The invention discloses a segmented copolymer thermoplastic dielectric elastomer thin membrane and a dielectric driver of the thin membrane. According to the segmented copolymer thermoplastic dielectric elastomer thin membrane and the dielectric driver of the thin membrane, the segmented copolymer thermoplastic dielectric elastomer thin membrane is subjected to a prestretching thermal relaxation technology, and a thinner self-supporting dielectric elastomer without fixing by a frame can be obtained; the driving performance of the dielectric elastomer is also improved, the driving voltage of the dielectric elastomer is lowered, the breakdown field strength of the dielectric elastomer is improved, and the area deformation of the dielectric elastomer is improved. In addition, through asymmetric prestretching thermal relaxation treatment, the dielectric elastomer with anisotropic mechanical properties can be obtained and can be used for drivers with anisotropic driving performance under frameless driving, and important significance is achieved on manufacturing of anisotropic flexible drivers and flexible robots by adopting the dielectric elastomer.

Description

technical field

[0001] The invention relates to the field of thermoplastic dielectric elastomers, in particular to a block copolymer thermoplastic dielectric elastomer film and a dielectric driver thereof. Background technique

[0002] The driving mechanism of the dielectric elastomer driver is to coat flexible electrodes on the upper and lower surfaces of the dielectric elastomer film and apply a certain voltage. Due to the different voltages of the upper and lower flexible electrodes, an electric field is formed, which produces Maxwell stress to squeeze the dielectric elastomer film, resulting in a decrease in the thickness of the dielectric elastomer film, expansion in the plane, and driving deformation. However, the driving voltage of the general dielectric elastomer driver is relatively high. Usually, the way to reduce the driving voltage is mainly to reduce the elastic modulus of the material, increase the dielectric constant of the material or reduce the thickness of ...

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