Absrtact: A dielectric elastomer is a material that can be deformed by applying a voltage to both ends thereof. Silicone-based dielectric elastomers have attracted much attention due to their high speed response

free preparation

and wide temperature range. The electric constant is low

the excitation electric field strength is high

and the electro-induced deformation is small

which restricts its development. Therefore

in view of these problems

nano-TiO2/silicone rubber composites were prepared by solution mixing method with liquid silicone rubber as the matrix and nano-TiO2 as filler. The dielectric properties and electro-deformation properties were tested. By adding nano-TiO2 to the polymer matrix

the dielectric constant is increased

the dielectric loss is reduced

and a large electro-induced deformation can be obtained.