The invention relates to the technical field of fireproof sound-absorbing boards, and discloses a fireproof sound-absorbing board which comprises a porous decorative
surface layer, a first inorganic
fiber layer, a sound-absorbing base board layer, a second inorganic
fiber layer and a back board layer which are sequentially stacked from top to bottom. The sound-absorbing base plate layer is prepared by mixing, foaming, curing and molding
plant fibers, an inorganic cementing material, a
foaming agent and a functional additive; according to the scheme,
plant fibers and inorganic cementing materials which are wide in source are selected as raw materials, high-price
polyurethane is replaced, the process is simple, the cost is greatly reduced, and large-scale popularization is facilitated. All the components are
environmentally friendly and harmless, no
toxic gas is released, the inorganic
fiber layer is firmly bonded, the drifting risk is avoided, and
human health is guaranteed.
Renewable materials are used as raw materials, production
energy consumption is low, the green and low-carbon concept is met, the special structure of the base plate layer and the double-layer inorganic
fiber layer cooperate for sound absorption, the effect is far better than that of a
mineral wool board, and the problem of defects in the prior art is solved.