High-strength sound absorption board

Abstract

The invention relates to a high-strength sound absorption board. The high-strength sound absorption board comprises a first sound absorption layer, a first air layer, a second sound absorption layer, a second air layer, a third sound absorption layer and stand columns in sequence, wherein the stand columns are used for fixing and supporting the first sound absorption layer, the second sound absorption layer and the third sound absorption layer; the thickness ratio of the first sound absorption layer to the first air layer to the second sound absorption layer to the second air layer to the third sound absorption layer is 1 to (0.75-0.78) to (0.91-0.93) to (0.86-0.88) to (1.03-1.05); and the total thickness of the sound absorption board is 3cm-6cm. Through the technical scheme, the structural and the material components of the sound absorption board are improved; and the sound absorption performance of the sound absorption board is adjusted and improved through adjusting the distances between the adjacent layers; the adopted materials are environment-friendly, pollution-free and harmless to human beings; and the sound absorption board is high in self-structural strength, excellent in flame resistance and low in smoke volume in case of fire.

Description

technical field [0001] The invention relates to the field of sound-absorbing materials, in particular to a high-strength sound-absorbing board. Background technique [0002] Sound-absorbing panel is a kind of sound-absorbing decorative material, which is mostly used in concert halls, theaters, recording rooms, conference rooms, KTV, bars, lecture halls and other places. Easy to cut, easy to assemble and other characteristics. However, the sound-absorbing panels in the prior art are mainly made of inferior chemical materials, which pollute the room to a greater degree, are not environmentally friendly, and the formaldehyde content is easy to exceed the standard. The machinable strength is low, the scrap rate is high, and the structural strength at the opening or incision is poor, which affects the local sound absorption performance of the sound-absorbing panel. Moreover, the existing sound-absorbing panels have potential safety hazards in terms of flame retardancy, and the ...

AI Technical Summary

Problems solved by technology

However, the sound-absorbing panels in the prior art are mainly made of low-quality chemical materials, which have a large degree of pollution to the room, are not environmentally friendly, and the formaldehyde content is easy to exceed the standard. The machinable strength is low, the scrap rate is high, and the structural strength at the opening or cutout is poor, which affects the local sound absorption performance of the sound-absorbing panel

Moreover, the existing sound-absorbing panels have potential safety hazards in terms of flame retardancy, and the amount of smoke emitted after a fire is relatively large, which can easily make people's breathing difficult

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