Ceramic refractory filler, preparation method and application thereof

The invention discloses a ceramic refractory filler, a preparation method and application thereof. The ceramic refractory filler comprises the following raw materials in parts by weight: 80-120 partsof ceramic forming powder, 1-5 parts of a silane coupling agent containing a nitrogen coordination functional group, 300-360 parts of a diluent, 0.5-1 part of chloroplatinic acid, 25-30 parts of sodium borohydride and 2-10 parts of a ceramic auxiliary agent. According to the invention, the ceramic refractory filler has good compatibility with silicone rubber and good dispersion uniformity in the silicone rubber, can effectively reduce the sintering temperature of the ceramic silicone rubber, and solves the problems of poor dispersity and low catalytic efficiency of the existing ceramic filler;the preparation method of the ceramic fire-resistant filler is simple, and the prepared ceramic fire-resistant filler has a good fire-resistant effect; and the ceramic silicone rubber of the ceramicrefractory filler is excell