Self-adhesive sound insulation felt

Abstract

The invention discloses a self-adhesive deadening felt which comprises a base material, a first deadening layer, a flame-retardant fiber layer, a microporous structure layer, a second deadening layer, an adhesive layer and a protective film layer which are stacked, the bottom of the deadening layer is connected with the top of the base material, and the top of the deadening layer is connected with the bottom of the flame-retardant fiber layer; the top of the second sound insulation layer is connected with the bottom of the density layer, the top of the flame-retardant fiber layer is in contact with the bottom of the microporous structure layer, the top of the second sound insulation layer is connected with the bottom of the adhesive layer, and the top of the adhesive layer is connected with the bottom of the protective film layer. And remarkable sound insulation, sound absorption and fire prevention effects are achieved. Firstly, the density layer can block sound waves of different frequency bands and remarkably reduce noise penetration, and the sound absorption layer adopts a porous structure, so that sound is effectively absorbed and attenuated, echoes and noise reflection in a space are reduced, and a quiet environment is created.

Description

Technical Field

[0001] The invention relates to a sound insulation felt, in particular to a self-adhesive sound insulation felt. Background Art

[0002] Soundproofing felt is a material used to reduce noise transmission and is widely used in many fields such as construction, automobiles, and home appliances. It can effectively reduce the propagation and reflection of sound waves through different physical principles, such as sound absorption, sound insulation, and damping, thereby achieving the purpose of sound insulation and noise reduction. Soundproofing felt is usually composed of multiple layers of materials, each with different functions to achieve the best sound insulation effect: Although existing sound insulation felt materials have a certain sound insulation effect, most of them are limited to high-density coils and cannot meet the growing multi-functional needs. At the same time, traditional sound insulation felts are cumbersome to lay and only have sound insulation effects, but are not very effective in fire prevention and moisture resistance.

[0003] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Summary of the invention

[0004] In order to solve the above problems, the purpose of the present invention is to provide a self-adhesive sound insulation felt. To achieve the above object, the present invention proposes a self-adhesive sound insulation felt, comprising a laminated substrate, a first sound insulation layer, a flame retardant fiber layer, a microporous structure layer, a second sound insulation layer, an adhesive layer and a protective film layer: The bottom of the sound insulation layer is connected to the top of the substrate, the top of the sound insulation layer is connected to the bottom of the flame retardant fiber layer, the top of the flame retardant fiber layer is in contact with the bottom of the microporous structure layer, the top of the microporous structure layer is connected to the bottom of the second sound insulation layer, the top of the second sound insulation layer is connected to the bottom of the adhesive layer, and the top of the adhesive layer is connected to the bottom of the protective film layer; The first sound insulation layer is provided with reflective particles, and the micropores of the microporous structure layer have a gradient distribution.

[0005] In one example, the reflective particles are mixed with aluminum powder and silicon powder and are evenly distributed on the surface of the first sound insulation layer.

[0006] In one example, the flame retardant fiber layer is made of aramid fiber.

[0007] In one example, the micropore diameter of the microporous structure layer ranges from 0.5 to 5 mm and is distributed in a gradient manner.

[0008] In one example, the adhesive layer is made of a temperature-sensitive adhesive material.

[0009] The self-adhesive sound insulation felt proposed by the present invention can bring the following beneficial effects: The present invention achieves significant sound insulation, sound absorption and fire prevention effects through a multi-layered structural design of the sound insulation felt, combined with a density layer, a sound absorption layer and a flame retardant material. First, the density layer can block sound waves of different frequency bands and significantly reduce noise penetration, while the sound absorption layer adopts a porous structure to effectively absorb and attenuate sound, reduce reverberation and noise reflection in the space, and thus create a quiet environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1 It is a structural schematic diagram of the present invention; Figure 2 Schematic diagram of the structure of the microporous structure layer of the present invention.

[0011] In the figure: 1. substrate; 2. first sound insulation layer; 3. flame retardant fiber layer; 4. microporous structure layer; 5. second sound insulation layer; 6. adhesive layer; 7. protective film layer. DETAILED DESCRIPTION

[0012] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0013] In the description of the present invention, it is necessary to understand that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0014] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0015] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one scheme", "some schemes", "examples", "specific examples" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more schemes or examples.

[0017] like Figure 1-2 As shown, an embodiment of the present invention provides a self-adhesive sound insulation felt, comprising a laminated substrate 1, a first sound insulation layer 2, a flame retardant fiber layer 3, a microporous structure layer 4, a second sound insulation layer 5, an adhesive layer 6 and a protective film layer 7:

[0018] The bottom of the sound insulation layer 2 is connected to the top of the substrate 1, the top of the sound insulation layer 2 is connected to the bottom of the flame retardant fiber layer 3, the top of the flame retardant fiber layer 3 is in contact with the bottom of the microporous structure layer 4, the top of the microporous structure layer 4 is connected to the bottom of the second sound insulation layer 5, the top of the second sound insulation layer 5 is connected to the bottom of the adhesive layer 6, and the top of the adhesive layer 6 is connected to the bottom of the protective film layer 7; The first sound insulation layer 2 is provided with reflective particles, and the micropores of the microporous structure layer 4 have a gradient distribution of pore sizes. Specifically, the reflective particles are formed by mixing aluminum powder and silicon powder, and are evenly distributed on the surface of the first sound insulation layer 2 .

[0019] Specifically, the flame retardant fiber layer 3 is made of aramid fiber.

[0020] Specifically, the micropore diameter of the microporous structure layer 4 ranges from 0.5 to 5 mm and is distributed in a gradient manner.

[0021] Specifically, the adhesive layer 6 is made of temperature-sensitive adhesive material.

[0022] Working principle: Reflective particles are evenly distributed on the surface of the first sound insulation layer 2. These particles are made of a mixture of aluminum powder and silicon powder and have high reflectivity. When noise is transmitted to the first sound insulation layer 2, the reflective particles will reflect sound waves at multiple angles, effectively reducing the penetration of noise and achieving a preliminary sound insulation effect. The density design of the first sound insulation layer 2 also helps to block medium and high frequency noise, further enhancing the sound insulation effect. The flame retardant fiber layer 3 is made of aramid fiber and has extremely strong high temperature resistance. When encountering high temperature or fire source, the aramid fiber layer will not burn quickly, thereby improving the fire resistance of the sound insulation felt. The internal micropore aperture range of the microporous structure layer 4 is 0.5-5 The microporous layer 4 has a diameter of 10 mm and a gradient distribution design is adopted. The large aperture absorbs low-frequency noise, and the small aperture absorbs high-frequency noise. The sound waves are constantly reflected, scattered and absorbed when passing through the microporous layer, thereby realizing the effective control and attenuation of multi-band noise. The second sound insulation layer 5 further enhances the overall sound insulation effect. After the sound waves pass through the microporous structure layer 4, their energy has been greatly weakened, and the second sound insulation layer 5 can absorb the remaining noise, especially has a significant inhibitory effect on low-frequency vibration noise, forming a deep sound insulation barrier. The adhesive layer 6 is made of temperature-sensitive adhesive material, has strong initial adhesion and lasting adhesion, and can fit tightly on a variety of surfaces. The temperature-sensitive property ensures that the sound insulation felt maintains stable adhesion performance at different temperatures. The protective film layer 7 covers the top of the adhesive layer 6 to protect the adhesive layer from contamination or damage before construction.

[0023] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0024] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A self-adhesive sound insulation felt, comprising a laminated substrate (1), a first sound insulation layer (2), a flame retardant fiber layer (3), a microporous structure layer (4), a second sound insulation layer (5), an adhesive layer (6) and a protective film layer (7): Features: The bottom of the sound insulation layer (2) is connected to the top of the substrate (1), the top of the sound insulation layer (2) is connected to the bottom of the flame retardant fiber layer (3), the top of the flame retardant fiber layer (3) is in contact with the bottom of the microporous structure layer (4), the top of the microporous structure layer (4) is connected to the bottom of the second sound insulation layer (5), the top of the second sound insulation layer (5) is connected to the bottom of the adhesive layer (6), and the top of the adhesive layer (6) is connected to the bottom of the protective film layer (7); The first sound insulation layer (2) is provided with reflective particles, and the micropore diameters of the microporous structure layer (4) are distributed in a gradient manner.

2. The self-adhesive sound insulation felt according to claim 1, characterized in that: The reflective particles are formed by mixing aluminum powder and silicon powder and are evenly distributed on the surface of the first sound insulation layer (2).

3. The self-adhesive sound insulation felt according to claim 1, characterized in that: The flame retardant fiber layer (3) is made of aramid fibers.

4. The self-adhesive sound insulation felt according to claim 1, characterized in that: The micropore diameter of the microporous structure layer (4) ranges from 0.5 to 5 mm and is distributed in a gradient manner.

5. The self-adhesive sound insulation felt according to claim 1, characterized in that: The adhesive layer (6) is made of a temperature-sensitive adhesive material.

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