Heat-dissipating and fire-extinguishing paster and preparation method and application thereof

The invention discloses a heat-dissipating and fire-extinguishing paster and a preparation method and application thereof and belongs to the field of fire-extinguishing and fire fighting and industrial heat dissipating. The heat-dissipating and fire-extinguishing paster is of a sandwiched structure, wherein the upper and lower layers are metal membranes, and a space between the two metal membranesis filled with fire-extinguishing filler. The preparation method of the heat-dissipating and fire-extinguishing paster comprises the following steps of coating uniformly mixed raw materials of the fire-extinguishing filler to the metal membranes to form a semiproduct, the upper and lower layers of which are the metal membranes and the middle of which is the fire-extinguishing filler; and then hot-pressing the semiproduct into a sheet to obtain the heat-dissipating and fire-extinguishing paster. The heat-dissipating and fire-extinguishing paster can be used in fireproofness of electrical equipment. The heat-dissipatin