▎ 摘　　要

NOVELTY - Method for preparing a dielectric elastomer material, involves adding calcium-copper-titanium oxide (CaCu3Ti4O12) powder and reduced graphene oxide to polydimethylsiloxane prepolymer solution, and evenly stirring and mixing to obtain a mixed solution, (b) adding sodium chloride salt particles to the mixed solution, evenly mixing, adding polydimethylsiloxane crosslinking curing agent to obtain a preliminary cured slurry, and (c) adding the preliminary cured slurry to a mold of the hot press, pressing the slurry to a film by hot pressing, and washing with water to remove the sodium chloride salt particles, peeling off the film from the mold to obtain the porous CaCu3Ti4O12/reduced graphene oxide/polydimethylsiloxane dielectric elastomer material. USE - The method is useful for preparing a dielectric elastomer material used for forming pressure sensor. ADVANTAGE - The prepared dielectric elastomer material has high dielectric constant, porous structure, and high air permeability, and is light, thin and portable, and the prepared pressure sensor has high sensitivity, high stability, high flexibility and high air permeability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a pressure sensor comprising a top-layer gas-permeable film electrode, dielectric elastomer material and bottom gas-layer permeable film electrode, where the dielectric elastomer material prepared by the method.