Provided are a fireproof vacuum insulation panel for a building external
thermal insulation system and a preparation method thereof. The fireproof vacuum insulation panel is composed of gas-phase silica
silicon carbide powder, glass fibers and a
glass fiber aluminum
plastic compound package bag, can be mixed with admixture, has the double functions of
thermal insulation and
fire resistance and can effectively resolve the problems of
thermal insulation and
fire resistance in an existing building external thermal
insulation system. The gas-phase silica, the admixture, the
silicon carbide and the glass fibers are placed in a smashing and mixing
machine to be smashed and evenly mixed, then
mixed materials are poured in a square hard mould to be pressed and formed, the formed compound core materials are placed in the glass aluminum
plastic compound package bag to be vacuumed until the vacuum degree is smaller that 1 Pa, and the fireproof vacuum insulation panel is obtained by
package. Thus, the fireproof vacuum insulation panel is simple in process, good in high
temperature resistance and fireproof performance, low in heat
conductivity coefficient, free of
thermal treatment, short in period, low in cost, capable of effectively substituting organic cystosepiment in the existing building external thermal
insulation system, and suitable for large-area preparation and large-scale production.