A kind of nano-sponge composite sound-absorbing board and its application
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A technology of nano-sponge and sound-absorbing board, which is applied in the field of sound-absorbing materials, can solve the problem of low noise absorption effect, achieve the effect of reducing dosage, light weight and increasing surface area
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Problems solved by technology
[0004] However, most of the existing sound-absorbing panels have a single-layer closed-cell structure, which only plays the role of blocking or reflecting noise, and has little effect on really absorbing noise.
Method used
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Embodiment 1
[0039] as attached figure 1 As shown, a nano-sponge composite sound-absorbing panel of the present invention includes at least two layers, the bottom layer is a main board body 1, the main board body 1 adopts a closed-cell structure, and the outer layer is a nano-sponge layer 2. Compared with the main board body 1, the configuration On the side close to the sound source, the main body 1 and the nano-sponge layer 2 are combined to form a nano-sponge composite sound-absorbing panel.
Embodiment 2
[0041] as attached figure 2 As shown, on the basis of embodiment one, an intermediate layer is additionally set between the main body 1 and the nano-sponge layer 2 of embodiment two, and the intermediate layer adopts a semi-open memory foam 3, and its aperture is between the main body 1 and the nano-sponge layer. 2, and form a buffer transition between the main body 1 and the nanosponge layer 2.
Embodiment 3
[0043] On the basis of Examples 1 and 2, Example 3 uses the nano-sponge as the carrier, utilizes the porous structure of the nano-sponge, loads the photocatalyst, and uses it as the outer layer of the nano-sponge composite sound-absorbing board.
[0044] When using nano-sponge as a carrier to load photocatalyst, the steps are as follows:
[0045] 1) Soaking: Put the nano-sponge in an organic solvent and take it out after fully soaking. The organic solvent is a mixture of ether and ethanol at a volume ratio of 1:1;
[0046] 2) Drying: Dry the soaked nano-sponge at 50°C;
[0047] 3) Flattening: Place the dried nano-sponge under a briquetting block with a force of 2500 Newton for flattening treatment, and the flattening time is controlled at 20 minutes;
[0048] 4) Use a watering can to spray 200 mL of the pre-configured photocatalyst solution evenly on the outer surface of the nano-sponge;
[0049] The raw materials of each L photocatalyst solution include: 300 mL ether, 500 m...
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Abstract
The present invention provides a nanometer sponge composite sound absorption plate and applications thereof, and belongs to the field of sound absorption materials. The nanometer sponge composite sound absorption plate at least comprises two layers, wherein the bottom layer is a main plate body, the main plate body adopts a closed-cell structure, the outer layer is a nanometer sponge layer and is arranged on the side close to a sound source compared to the main plate body, and the main plate body and the nanometer sponge layer are compounded so as to form the nanometer sponge composite sound absorption plate, wherein the nanometer sponge composite sound absorption plate can be used for the noise reduction in the fields of decoration, tunnels and equipment. According to the present invention, the nanometer sponge is used as the carrier, and the sound absorption and noise reduction purpose is achieved by using the porous structure of the nanometer sponge, such that the further supplementation for the sound insulation and reflection effect of the sound absorption plate can be achieved; and after the photocatalyst is loaded on the nanometer sponge, formaldehyde and other harmful gases can be removed, and indoor air can be purified so as to enrich and expand the original function of the sound absorption plate.
Description
technical field [0001] The invention relates to the technical field of sound-absorbing materials, in particular to a nano-sponge composite sound-absorbing panel and its application. Background technique [0002] The harm of noise pollution to people's health and daily life is known day by day. For this reason, people have adopted various methods. At present, greening is planted on both sides of municipal roads and expressways, and sound insulation screens are installed. However, according to the current greening planting density, the effect of sound insulation and windproof is far from being achieved. [0003] In response to indoor noise pollution, the sound-absorbing function of buildings has become increasingly prominent among many building functions. More and more sound-absorbing panels are used in the field of home decoration, such as walls, partitions, ceilings, etc. The use of sound-absorbing panels effectively improves the sound quality environment in the living room...
Claims
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