Double surface grooving sound suction board and composite sound suction board constituted therefor
A technology of sound-absorbing panels and sound-absorbing holes, which is applied to building components, building structures, and sound insulation, and can solve problems that cannot meet the needs of sound-absorbing performance, and achieve good decorative effects, high sound-absorbing efficiency, and good sound-absorbing effect of effect
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no. 1 example
[0021] As shown in Figure 1, Figure 2 and Figure 3, the composite sound-absorbing panel of this embodiment is composed of a mineral wool board 1 and a gypsum board 2, and the mineral wool board 1 is located on the side that can usually be seen during use, as follows Referred to as the surface, the plasterboard 2 is located on the side that is not normally visible when in use, hereinafter referred to as the back. In order to facilitate installation, the outer periphery of the mineral wool board 1 is smaller than the peripheral dimension of the gypsum board 2, and a step is formed between the two layers to facilitate installation on the ceiling keel. But this is not necessary in other implementation occasions, and the two boards can also be completely overlapped, even the gypsum board is smaller than the mineral wool board, which is not limited by the present invention.
[0022] The upper surface of the mineral wool board 1 has a plurality of mutually parallel upper grooves 11 a...
no. 2 example
[0028] The structure of the composite sound-absorbing board of this embodiment is basically the same as that of the first embodiment, the difference is that there are a plurality of through holes evenly distributed on the gypsum board, preferably circular. One surface of the gypsum board is bonded to the mineral wool board, and a sound-absorbing layer is bonded to the other surface. The sound-absorbing layer is preferably made of sheet materials with sound-absorbing properties, such as various sound-absorbing papers, sound-absorbing cloth, Glass felt etc.
[0029] It can be seen that this embodiment makes the sound-absorbing cavity behind the sound-absorbing hole larger and more, and its sound-absorbing performance can be improved by 20% to 30% on the basis of the composite sound-absorbing panel of the first embodiment. .
no. 3 example
[0031] A nano-healthy coating can also be set on the surface of the composite sound-absorbing panel described in the above-mentioned first embodiment or second embodiment, and the nano-healthy coating can be nanoscale powder of titanium dioxide (TiO2) with a particle size of 2nm, plus Apply adhesive to form a healthy coating with a hardness of 4H on the board.
[0032] The above-mentioned nano-healthy coating is a photocatalyst material, which can use light as a medium, and after absorbing light energy, use the energy provided by the light to catalyze, so that the oxygen or water molecules around the coating can be converted into highly active hydrogen. Oxygen free radicals (OH free radicals), and then use these free radicals to decompose organic substances that are harmful to the human body or the environment.
[0033] Through experiments, it is found that the composite sound-absorbing panel with the above-mentioned nano-healthy coating has the following characteristics in ad...
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