Multilayer composite polyester fiber acoustic board

Abstract

The utility model discloses a multi-layer composite polyester fiber acoustic board, and relates to the technical field of acoustic boards. The multi-layer composite polyester fiber acoustic board comprises an acoustic board body, the acoustic board body comprises a high-density fiberboard, a gradient transition sound absorption layer is compounded on the top surface of the high-density fiberboard, a high-density sound absorption layer is compounded on the top surface of the gradient transition sound absorption layer, and a damp-proof layer is compounded on the top surface of the high-density sound absorption layer; a surface decoration layer is compounded on the surface of the top of the damp-proof layer, fire retardant is sprayed on the surface of the top of the surface decoration layer, and the gradient transition sound absorption layer comprises a coconut shell fiber layer arranged on the surface of the top of the high-density fiberboard. The damage of external flames to the sound-absorbing plate body can be reduced, so that the use safety and the service life of the sound-absorbing plate body can be improved.

Description

Technical Field

[0001] This utility model relates to the field of sound-absorbing panel technology, specifically a multi-layer composite polyester fiber sound-absorbing panel. Background Technology

[0002] Sound-absorbing panels are an ideal sound-absorbing decorative material, with the advantages of sound absorption, simple construction, and good stability. They are available in a wide variety of colors to meet the sound-absorbing decoration needs of different styles and levels. Sound-absorbing panels are mainly used for the wall or ceiling decoration of large public places with high requirements for acoustic environment, such as cinemas, theaters, conference rooms, and stadiums.

[0003] However, existing sound-absorbing panels have a simple structure and insufficient sound absorption effect, which reduces their application range. In addition, they are easily ignited by external flames, which reduces their safety. Therefore, we propose a multi-layer composite polyester fiber sound-absorbing panel to solve the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a multi-layer composite polyester fiber sound-absorbing panel, which solves the problems of simple structure and insufficient sound absorption effect, thereby reducing the scope of application of the sound-absorbing panel. At the same time, it is easy to ignite by external flames, which reduces the safety of the sound-absorbing panel.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a multi-layer composite polyester fiber sound-absorbing board, comprising a sound-absorbing board body, the sound-absorbing board body comprising a high-density fiberboard, a gradient transition sound-absorbing layer composited on the top surface of the high-density fiberboard, a high-density sound-absorbing layer composited on the top surface of the gradient transition sound-absorbing layer, and a moisture-proof layer composited on the top surface of the high-density sound-absorbing layer.

[0006] The top surface of the moisture-proof layer is coated with a surface decorative layer, and the top surface of the surface decorative layer is sprayed with a flame retardant.

[0007] Preferably, the gradient transition sound-absorbing layer includes a coconut shell fiber layer disposed on the top surface of the high-density fiberboard, and the top surface of the coconut shell fiber layer is composited with a gradient polyester fiber layer.

[0008] Preferably, the high-density sound-absorbing layer includes a high-density polyester fiber layer, and a melamine foam layer is laminated on the top surface of the high-density polyester fiber layer;

[0009] The top surface of the melamine foam layer is laminated with a glass wool layer, and the glass wool layer is connected to the upper surface of the gradient polyester fiber layer.

[0010] Preferably, the moisture-proof layer includes a glass fiber mesh fabric disposed on the surface of the high-density polyester fiber layer, and the top surface of the glass fiber mesh fabric is coated with a microporous PTFE membrane layer.

[0011] Preferably, the surface decorative layer comprises a sound-permeable nonwoven fabric, and the bottom surface of the sound-permeable nonwoven fabric is laminated with a flame-retardant PVC film;

[0012] The bottom surface of the flame-retardant PVC film is provided with a microporous coating, and the bottom surface of the microporous coating is connected to the microporous PTFE film layer.

[0013] Preferably, the pore size of the microporous coating is 50-200 μm.

[0014] Preferably, the bottom surface of the high-density fiberboard is laminated with an aluminum foil facing layer. Beneficial effects

[0015] This invention provides a multi-layer composite polyester fiber sound-absorbing panel. Compared with the prior art, it has the following advantages:

[0016] This multi-layer composite polyester fiber sound-absorbing panel utilizes high-density fiberboard in its main body to provide both sound absorption and support for the gradient sound-absorbing layer, ensuring the panel remains flat during use. The gradient sound-absorbing layer provides a smooth impedance transition and optimizes mid-frequency sound absorption. The high-density sound-absorbing layer absorbs mid-to-high frequency sound waves, thus increasing the panel's sound absorption range. A moisture-proof layer allows sound to pass through while preventing water penetration. A surface decorative layer, combined with flame retardants, enhances aesthetics and reduces damage from external flames, thereby improving the panel's safety and lifespan. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the gradient transition sound-absorbing layer structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the high-density sound-absorbing layer structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the moisture-proof layer structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the surface decorative layer structure of this utility model.

[0022] In the diagram: 1. Sound-absorbing panel body; 2. High-density fiberboard; 3. Gradient transition sound-absorbing layer; 31. Coconut shell fiber layer; 32. Gradient polyester fiber layer; 4. High-density sound-absorbing layer; 41. High-density polyester fiber layer; 42. Melamine foam layer; 43. Glass wool layer; 5. Moisture-proof layer; 51. Glass fiber mesh; 52. Microporous PTFE membrane layer; 6. Surface decorative layer; 61. Sound-permeable non-woven fabric; 62. Flame-retardant PVC membrane; 63. Microporous coating; 7. Flame retardant; 8. Aluminum foil facing layer. Detailed Implementation

[0023] 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.

[0024] Please see Figure 1 This utility model provides a technical solution: a multi-layer composite polyester fiber sound-absorbing panel, including a sound-absorbing panel body 1, the sound-absorbing panel body 1 including a high-density fiberboard 2, a gradient transition sound-absorbing layer 3 composited on the top surface of the high-density fiberboard 2, a high-density sound-absorbing layer 4 composited on the top surface of the gradient transition sound-absorbing layer 3, a moisture-proof layer 5 composited on the top surface of the high-density sound-absorbing layer 4, a surface decorative layer 6 composited on the top surface of the moisture-proof layer 5, and a flame retardant 7 sprayed on the top surface of the surface decorative layer 6;

[0025] The high-density fiberboard 2 in the main body 1 of the sound-absorbing panel not only provides sound absorption but also supports the gradient transition sound-absorbing layer 3, thus keeping the main body 1 flat during use. The gradient transition sound-absorbing layer 3 provides a smooth impedance transition and transitions acoustic impedance, thereby optimizing mid-frequency sound absorption. The high-density sound-absorbing layer 4 absorbs mid-to-high frequency sound waves, thereby increasing the sound absorption range of the main body 1. The moisture-proof layer 5 allows sound to pass through while preventing water stains from penetrating inward. The surface decorative layer 6, combined with flame retardant 7, not only provides aesthetic appeal but also reduces damage from external flames, thereby improving the safety and lifespan of the main body 1.

[0026] See Figure 1 , Figure 2 The gradient transition sound-absorbing layer 3 includes a coconut shell fiber layer 31 disposed on the top surface of the high-density fiberboard 2, and a gradient polyester fiber layer 32 is composited on the top surface of the coconut shell fiber layer 31.

[0027] The coconut fiber layer 31 in the gradient transition sound absorption layer 3 can be laminated to the top surface of the high-density fiberboard 2 and provide an attachment base for the gradient polyester fiber layer 32. The coconut fiber layer 31, with its natural pore distribution, can provide a smooth impedance transition. Then, through the gradient polyester fiber layer 32, the acoustic impedance can be transitioned, thereby optimizing mid-frequency sound absorption.

[0028] See Figures 1-3 The high-density sound-absorbing layer 4 includes a high-density polyester fiber layer 41, and a melamine foam layer 42 is laminated on the top surface of the high-density polyester fiber layer 41; a glass wool layer 43 is laminated on the top surface of the melamine foam layer 42, and the glass wool layer 43 is connected to the upper surface of the gradient polyester fiber layer 32.

[0029] The glass wool layer 43 in the high-density sound-absorbing layer 4 can be laminated on the upper surface of the gradient polyester fiber layer 32 and provide an adhesion base for the melamine foam layer 42. Then, the melamine foam layer 42 can provide a composite base for the high-density polyester fiber layer 41. Then, the high-density polyester fiber layer 41, the melamine foam layer 42 and the glass wool layer 43 can play a triple sound absorption role, thereby absorbing mid-to-high frequency sound waves and improving the sound absorption range of the sound-absorbing panel body 1.

[0030] See Figures 1-4 The moisture barrier 5 includes a glass fiber mesh 51 disposed on the surface of the high-density polyester fiber layer 41, and a microporous PTFE membrane layer 52 is laminated on the top surface of the glass fiber mesh 51.

[0031] The glass fiber mesh 51 in the moisture barrier layer 5 can be laminated on the high-density polyester fiber layer 41, provide an adhesion base for the microporous PTFE membrane layer 52, and strengthen the structural strength of the microporous PTFE membrane layer 52, thereby improving the safety of the microporous PTFE membrane layer 52. The microporous PTFE membrane layer 52 allows sound to pass through while blocking water stains from penetrating inward.

[0032] See Figure 4 , Figure 5 The surface decorative layer 6 includes a sound-permeable nonwoven fabric 61, and a flame-retardant PVC film 62 is laminated on the bottom surface of the sound-permeable nonwoven fabric 61; a microporous coating 63 is provided on the bottom surface of the flame-retardant PVC film 62, and the bottom surface of the microporous coating 63 is connected to the microporous PTFE film layer 52, and the pore size of the microporous coating 63 is 50-200μm.

[0033] The sound-permeable nonwoven fabric 61 in the surface decorative layer 6 serves both to transmit sound and to enhance the aesthetics, while also providing a substrate for the flame retardant 7 to adhere. Then, the flame-retardant PVC film 62, in conjunction with the sound-permeable nonwoven fabric 61 coated with flame retardant 7, provides a dual flame-retardant function, thereby reducing damage from external flames. The microporous coating 63 with a pore size of 50-200μm allows sound waves to penetrate into the material, thus enhancing high-frequency sound absorption.

[0034] See Figure 1 The bottom surface of the high-density fiberboard 2 is coated with an aluminum foil facing layer 8, which can both protect the back of the high-density fiberboard 2 and provide a certain degree of waterproofing.

[0035] During operation, the high-density fiberboard 2 in the main body 1 of the sound-absorbing panel not only provides a certain sound absorption effect, but also supports the gradient transition sound-absorbing layer 3, thus keeping the main body 1 of the sound-absorbing panel flat during use. The gradient transition sound-absorbing layer 3 provides both a smooth impedance transition and a smooth acoustic impedance transition, thereby optimizing mid-frequency sound absorption. The high-density sound-absorbing layer 4 absorbs mid-to-high frequency sound waves, thereby increasing the sound absorption range of the main body 1 of the sound-absorbing panel. Then, the moisture-proof layer 5 allows sound to pass through while preventing water stains from penetrating inward. The surface decorative layer 6, combined with flame retardant 7, not only provides an aesthetic effect, but also reduces damage from external flames, thereby improving the safety and lifespan of the main body 1 of the sound-absorbing panel.

[0036] The coconut fiber layer 31 in the gradient transition sound absorption layer 3 can be laminated to the top surface of the high-density fiberboard 2 and provide an attachment base for the gradient polyester fiber layer 32. The coconut fiber layer 31, with its natural pore distribution, can provide a smooth impedance transition. Then, through the gradient polyester fiber layer 32, the acoustic impedance can be transitioned, thereby optimizing mid-frequency sound absorption.

[0037] The glass wool layer 43 in the high-density sound-absorbing layer 4 can be laminated on the upper surface of the gradient polyester fiber layer 32 and provide an adhesion base for the melamine foam layer 42. Then, the melamine foam layer 42 can provide a composite base for the high-density polyester fiber layer 41. Then, the high-density polyester fiber layer 41, the melamine foam layer 42 and the glass wool layer 43 can play a triple sound absorption role, thereby absorbing mid-to-high frequency sound waves and improving the sound absorption range of the sound-absorbing panel body 1.

[0038] The glass fiber mesh 51 in the moisture barrier layer 5 can be laminated on the high-density polyester fiber layer 41, provide an adhesion base for the microporous PTFE membrane layer 52, and strengthen the structural strength of the microporous PTFE membrane layer 52, thereby improving the safety of the microporous PTFE membrane layer 52. The microporous PTFE membrane layer 52 allows sound to pass through while blocking water stains from penetrating inward.

[0039] The sound-permeable non-woven fabric 61 in the surface decorative layer 6 serves both a sound-permeable function and a decorative aesthetic function, while also providing an adhesion base for the flame retardant 7. Then, the flame-retardant PVC film 62, in conjunction with the sound-permeable non-woven fabric 61 coated with flame retardant 7, provides a dual flame-retardant function, thereby reducing damage from external flames. The microporous coating 63 with a pore size of 50-200μm allows sound waves to enter the interior of the material, thereby enhancing high-frequency sound absorption. Since the bottom surface of the high-density fiberboard 2 is laminated with an aluminum foil facing layer 8, it not only protects the back of the high-density fiberboard 2 but also provides a certain degree of waterproofing.

[0040] In summary, this device can achieve multiple sound absorption purposes, thereby expanding the application range of the sound-absorbing panel and reducing damage from external flames, thus improving the safety and lifespan of the sound-absorbing panel body 1.

[0041] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A multi-layer composite polyester fiber sound-absorbing panel, comprising a sound-absorbing panel body (1), characterized in that: The sound-absorbing panel body (1) includes a high-density fiberboard (2), the top surface of the high-density fiberboard (2) is coated with a gradient transition sound-absorbing layer (3), the top surface of the gradient transition sound-absorbing layer (3) is coated with a high-density sound-absorbing layer (4), and the top surface of the high-density sound-absorbing layer (4) is coated with a moisture-proof layer (5). The top surface of the moisture-proof layer (5) is coated with a surface decorative layer (6), and the top surface of the surface decorative layer (6) is sprayed with a flame retardant (7).

2. The multilayer composite polyester fiber sound-absorbing board according to claim 1, characterized in that: The gradient transition sound-absorbing layer (3) includes a coconut shell fiber layer (31) disposed on the top surface of the high-density fiberboard (2), and the top surface of the coconut shell fiber layer (31) is composited with a gradient polyester fiber layer (32).

3. The multilayer composite polyester fiber sound-absorbing board according to claim 2, characterized in that: The high-density sound-absorbing layer (4) includes a high-density polyester fiber layer (41), and a melamine foam layer (42) is laminated on the top surface of the high-density polyester fiber layer (41). The top surface of the melamine foam layer (42) is coated with a glass wool layer (43), and the glass wool layer (43) is connected to the upper surface of the gradient polyester fiber layer (32).

4. The multilayer composite polyester fiber sound-absorbing board according to claim 3, characterized in that: The moisture-proof layer (5) includes a glass fiber mesh (51) disposed on the surface of the high-density polyester fiber layer (41), and the top surface of the glass fiber mesh (51) is coated with a microporous PTFE membrane layer (52).

5. The multilayer composite polyester fiber sound-absorbing board according to claim 4, characterized in that: The surface decorative layer (6) includes a sound-permeable nonwoven fabric (61), and the bottom surface of the sound-permeable nonwoven fabric (61) is laminated with a flame-retardant PVC film (62). The bottom surface of the flame-retardant PVC film (62) is provided with a microporous coating (63), and the bottom surface of the microporous coating (63) is connected to the microporous PTFE film layer (52).

6. The multilayer composite polyester fiber sound-absorbing board according to claim 5, characterized in that: The microporous coating (63) has a pore size of 50-200 μm.

7. The multilayer composite polyester fiber sound-absorbing board according to claim 1, characterized in that: The bottom surface of the high-density fiberboard (2) is coated with an aluminum foil facing layer (8).

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