Sound absorbing and noise reducing composite board

Abstract

This utility model discloses a sound-absorbing and noise-reducing composite panel, relating to the field of composite panel technology. It includes a composite panel structure, which comprises a base layer, an interface reinforcing agent layer, an adhesive layer, a sound-absorbing panel, a sound-permeable undercoat, and a sound-permeable topcoat. This utility model uses a multi-layered structure arranged sequentially from the inside out, consisting of a base layer, an interface reinforcing agent layer, an adhesive layer, a sound-absorbing panel, a sound-permeable undercoat, and a sound-permeable topcoat. The sound-absorbing panel is composed of a glass wool layer and a crystalline foam layer, effectively absorbing high-frequency and mid-to-low-frequency sound wave energy through a porous structure and vibration control. The sound-permeable undercoat and topcoat are composed of polycrystalline sand sound-permeable coatings, achieving a highly efficient sound barrier function through a dense porous structure. Compared to existing technologies, the sound absorption and noise reduction effect of the composite panel structure in this solution is improved, and the connections between layers are tighter, resulting in higher structural strength and a wider range of applications.

Description

Technical Field

[0001] This utility model relates to the field of composite board technology, and in particular to a sound-absorbing and noise-reducing composite board. Background Technology

[0002] Sound-absorbing panels are mainly used in theaters, concert halls, museums, exhibition halls, libraries, interrogation rooms, galleries, auction halls, stadiums, lecture halls, multi-functional halls, hotel lobbies, hospitals, shopping malls, schools, music practice rooms, conference rooms, studios, recording studios, KTV rooms, bars, industrial plants, computer rooms, and home noise reduction, as well as other places with high requirements for acoustic environment and high-end decoration.

[0003] In the prior art, such as the sound-absorbing composite panel with announcement number CN206376470U, there is a decorative sound-absorbing panel layer, a sound-absorbing panel layer on the bottom surface of the decorative sound-absorbing panel layer, a fireproof layer on the bottom surface of the sound-absorbing panel layer, an adhesive layer on the bottom surface of the fireproof layer, and a backing paper on the bottom surface of the adhesive layer. This sound-absorbing composite panel uses polyester fiber decorative sound-absorbing panels, which have the characteristics of decoration, heat insulation, flame retardancy, environmental protection, lightweight, easy processing, stability, impact resistance, and easy maintenance. It also uses centrifugal glass wool board, which has many advantages such as flame retardancy, non-toxicity, corrosion resistance, low density, low thermal conductivity, strong chemical stability, low moisture absorption, and good water repellency. The sound absorption and noise reduction effect is very significant. The fireproof layer can protect people's lives and property, and the adhesive layer facilitates installation.

[0004] The sound-absorbing panel in the above technical solution has some problems in practical application. The sound-absorbing panel cannot be well connected to the base layer when in use, and its sound-absorbing structure is relatively simple, resulting in limited sound absorption effect.

[0005] Therefore, it is necessary to invent a sound-absorbing and noise-reducing composite board to solve the above problems. Utility Model Content

[0006] The purpose of this utility model is to provide a sound-absorbing and noise-reducing composite board to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sound-absorbing and noise-reducing composite panel, comprising a composite panel structure body, wherein the composite panel structure body is composed of a base layer, an interface reinforcing agent layer, an adhesive layer, a sound-absorbing panel, a sound-permeable bottom coating, and a sound-permeable top coating, wherein the base layer, interface reinforcing agent layer, adhesive layer, sound-absorbing panel, sound-permeable bottom coating, and sound-permeable top coating are arranged sequentially from the inside to the outside, and the sound-absorbing panel is provided in multiple pieces, with adhesive caulking between the multiple sound-absorbing panels;

[0008] The sound-absorbing panel is composed of a glass wool layer and a crystalline foam layer. The glass wool layer has a thickness of 25mm, and the crystalline foam layer has a thickness of 5mm.

[0009] Preferably, the base layer is one of a variety of materials, such as mortar layer, concrete layer, or gypsum board layer.

[0010] Preferably, the interface reinforcing agent layer is an epoxy adhesive layer, and the thickness of the interface reinforcing agent layer is 1 mm.

[0011] Preferably, the adhesive layer is a polyurethane adhesive, and the thickness of the adhesive layer is 3 mm.

[0012] Preferably, both the sound-permeable base coating and the sound-permeable top coating are polycrystalline sand sound-permeable coatings, the thickness of the sound-permeable base coating is 2-3 mm, and the thickness of the sound-permeable top coating is 1-2 mm.

[0013] Preferably, the adhesive used for caulking is polyurethane adhesive.

[0014] The technical effects and advantages of this utility model are as follows:

[0015] This invention employs a multi-layered structure, consisting of a base layer, an interface reinforcing agent layer, an adhesive layer, a sound-absorbing panel, a sound-permeable undercoat, and a sound-permeable topcoat, arranged sequentially from the inside out. The sound-absorbing panel comprises a glass wool layer and a crystalline foam layer, effectively absorbing high-frequency and mid-to-low-frequency sound wave energy through a porous structure and vibration control. The interface reinforcing agent layer is bonded and fixed using epoxy adhesive, while simultaneously sealing surface pores to reduce air permeation. The adhesive layer uses polyurethane adhesive, providing excellent elastic support and sealing protection. The sound-permeable undercoat and topcoat are composed of polycrystalline sand sound-permeable coatings, achieving a highly efficient sound barrier function through a dense porous structure. The main design of the composite panel structure has been optimized, significantly reducing noise propagation without altering the structure. Compared to existing technologies, this technical solution improves the sound absorption and noise reduction effect of the composite panel structure, with tighter connections between layers, higher structural strength, and a wider range of applications. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0018] In the diagram: 1. Composite board structure; 2. Base layer; 3. Interface reinforcing agent layer; 4. Adhesive layer; 5. Sound-absorbing board; 6. Sound-permeable base coating; 7. Sound-permeable top coating; 8. Adhesive caulking; 9. Glass wool layer; 10. Crystal foam top layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides, for example Figure 1-2 The sound-absorbing and noise-reducing composite panel shown includes a composite panel structure 1, which is composed of a base layer 2, an interface reinforcing agent layer 3, an adhesive layer 4, a sound-absorbing panel 5, a sound-permeable undercoat 6, and a sound-permeable surface coating 7. The base layer 2, interface reinforcing agent layer 3, adhesive layer 4, sound-absorbing panel 5, sound-permeable undercoat 6, and sound-permeable surface coating 7 are arranged sequentially from the inside to the outside. There are multiple sound-absorbing panels 5, and adhesive caulking 8 is provided between the multiple sound-absorbing panels 5.

[0021] The sound-absorbing panel 5 is composed of a glass wool layer 9 and a crystal foam layer 10. The thickness of the glass wool layer 9 is 25mm, and the thickness of the crystal foam layer 10 is 5mm.

[0022] The base layer 2 can be one of several types, such as mortar layer, concrete layer, or gypsum board layer. The base layer 2 provides a stable foundation structure for the main body 1 of the composite board structure, so that the interface reinforcement layer 3, adhesive layer 4, sound-absorbing board 5, sound-permeable base coating 6, and sound-permeable top coating 7 can be combined on the building surface and other areas. When the main body 1 of the composite board is combined on the surface of the base layer 2 of different materials, the corresponding construction method is selected according to the different materials of the base layer 2 to ensure that the surface of the base layer 2 is firm, dry, flat, and clean, so as to ensure the adhesion effect of the interface reinforcement layer 3.

[0023] The interface reinforcement layer 3 is set as an epoxy adhesive layer with a thickness of 1mm. The interface reinforcement layer 3 is used to fix the sound-absorbing panel 5 to the surface of the base layer 2. The epoxy adhesive has excellent adhesion and durability, and can form a dense reinforcement layer to prevent the sound-absorbing panel 5 from loosening or falling off from the base layer 2. At the same time, its closed foam structure can effectively seal the surface pores and reduce air infiltration, thereby further improving the sound insulation performance.

[0024] The adhesive layer 4 is made of polyurethane adhesive and has a thickness of 3mm. The adhesive layer 4 is used to further fix the sound-absorbing panel 5 and bond it with the interface reinforcement layer 3. The polyurethane adhesive has good flexibility and elastomer structure, which can provide the necessary support between the sound-absorbing panel 5 and the base layer 2 to prevent structural failure caused by the use load or vibration.

[0025] Both the sound-permeable base coating 6 and the sound-permeable top coating 7 are polycrystalline sand sound-permeable coatings. The thickness of the sound-permeable base coating 6 is 2-3mm, and the thickness of the sound-permeable top coating 7 is 1-2mm. The dense porous structure of the sound-permeable material can effectively isolate the permeation of air, thereby significantly reducing the sound wave penetration. The thickness design of the sound-permeable base and top coatings not only ensures the sound insulation effect, but also balances the material cost to a certain extent.

[0026] The adhesive caulking 8 is made of polyurethane adhesive. The adhesive caulking is used to bond and fix two adjacent sound-absorbing panels 5, and further improves the connection strength between the sound-absorbing panel 5 and the adhesive layer 4.

[0027] In summary, this technical solution employs a multi-layered structure arranged sequentially from the inside out, consisting of a base layer 2, an interface reinforcing agent layer 3, an adhesive layer 4, a sound-absorbing panel 5, a sound-permeable undercoat 6, and a sound-permeable topcoat 7. The sound-absorbing panel 5 comprises a glass wool layer 9 and a crystalline foam surface layer 10, effectively absorbing high-frequency and mid-to-low-frequency sound wave energy through a porous structure and vibration control. The interface reinforcing agent layer 3 is bonded and fixed using epoxy adhesive, while simultaneously sealing surface pores to reduce air permeation. The adhesive layer 4 uses polyurethane adhesive, providing excellent elastic support and sealing protection. The sound-permeable undercoat 6 and the sound-permeable topcoat 7 are composed of polycrystalline sand sound-permeable coatings, achieving a highly efficient sound barrier function through a dense porous structure. The composite panel structure 1 has been optimized in design, significantly reducing noise propagation without altering the structure. Compared to existing technologies, this technical solution improves the sound absorption and noise reduction effect of the composite panel structure 1, with tighter connections between layers, higher structural strength, and a wider range of applications.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sound-absorbing and noise-reducing composite panel, comprising a composite panel structural body (1), characterized in that: The main body (1) of the composite board structure is composed of a base layer (2), an interface reinforcing agent layer (3), an adhesive layer (4), a sound-absorbing board (5), a sound-permeable bottom coating (6), and a sound-permeable top coating (7). The base layer (2), the interface reinforcing agent layer (3), the adhesive layer (4), the sound-absorbing board (5), the sound-permeable bottom coating (6), and the sound-permeable top coating (7) are arranged sequentially from the inside to the outside. There are multiple sound-absorbing boards (5), and adhesive caulking (8) is provided between the multiple sound-absorbing boards (5). The sound-absorbing panel (5) is composed of a glass wool layer (9) and a crystal foam layer (10). The glass wool layer (9) has a thickness of 25 mm, and the crystal foam layer (10) has a thickness of 5 mm.

2. The sound-absorbing and noise-reducing composite panel according to claim 1, characterized in that: The base layer (2) is one of several types, including mortar layer, concrete layer, and gypsum board layer.

3. The sound-absorbing and noise-reducing composite panel according to claim 1, characterized in that: The interface reinforcing agent layer (3) is set as an epoxy adhesive layer, and the thickness of the interface reinforcing agent layer (3) is 1mm.

4. The sound-absorbing and noise-reducing composite board according to claim 1, characterized in that: The adhesive layer (4) is a polyurethane adhesive with a thickness of 3 mm.

5. The sound-absorbing and noise-reducing composite panel according to claim 1, characterized in that: The sound-permeable base coating (6) and the sound-permeable top coating (7) are both polycrystalline sand sound-permeable coatings. The thickness of the sound-permeable base coating (6) is 2-3 mm, and the thickness of the sound-permeable top coating (7) is 1-2 mm.

6. The sound-absorbing and noise-reducing composite panel according to claim 1, characterized in that: The adhesive caulking (8) is a polyurethane adhesive.

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