A multi-layer composite moisture-proof and sound-insulating board structure

Abstract

The utility model discloses a kind of multilayer composite moisture-proof sound insulation board structure, belong to composite board technical field, and its technical scheme main points include composite board main body, the composite board main body includes base layer and bottom plate balance layer, the bottom plate balance layer is arranged at the bottom of base layer, the top of base layer is provided with moisture-proof buffer layer, the top of moisture-proof buffer layer is provided with sound insulation noise reduction layer, the top of sound insulation noise reduction layer is provided with reinforcing layer, the top of reinforcing layer is provided with surface decoration layer, by using the moisture-proof buffer layer of modified polyethylene film and bamboo fiber mesh cloth composite, cooperate with nano waterproof coating and sealing edge strip, form the three-dimensional moisture-proof system of barrier-adhesion-sealing;Through the composite structure of centrifugal glass wool board and butyl rubber damping sheet, combine concave-convex groove fitting design, simultaneously absorb medium-high frequency sound wave and attenuate low-frequency vibration, cooperate with sealing edge strip to block edge sound leak, significantly improve the sound insulation capability of full frequency band.

Description

Technical Field

[0001] This utility model relates to the field of composite board technology, and in particular to a multi-layer composite moisture-proof and sound-insulating board structure. Background Technology

[0002] Boards are flat, rectangular building material panels made to standard sizes, used in the construction industry as components for walls, ceilings, or floors.

[0003] Existing composite panels have significant shortcomings in terms of moisture resistance and sound insulation: Poor moisture resistance: Most boards use a single moisture-proof layer (such as ordinary plastic film), which is not tightly bonded to other layers. It is easy for delamination to occur due to changes in temperature and humidity, which allows moisture to seep into the base layer (such as wood and gypsum), causing mold and deformation. Limited sound insulation effect: Relying on a single sound insulation material (such as rock wool or glass wool), sound waves can easily be transmitted through material gaps or rigid connections, and the low-frequency sound insulation ability is weak, making it difficult to meet the needs of residences, offices, and other places for a quiet environment.

[0004] Therefore, a multi-layer composite moisture-proof and sound-insulating board structure is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-layer composite moisture-proof and sound-insulating board structure, which can solve the problems of existing composite boards, most of which use a single moisture-proof layer, which is not tightly bonded to other layers and is prone to delamination due to temperature and humidity changes, causing moisture to seep into the base layer and causing mold and deformation; and existing composite boards rely on a single sound insulation material, which allows sound waves to be transmitted through material gaps or rigid connections, and has weak low-frequency sound insulation ability, making it difficult to meet the needs of quiet environments in residences, offices and other places.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-layer composite moisture-proof and sound-insulating board structure, comprising a composite board body, the composite board body comprising a base layer and a bottom plate balancing layer, the bottom plate balancing layer being disposed at the bottom of the base layer, a moisture-proof buffer layer being disposed at the top of the base layer, a sound insulation and noise reduction layer being disposed at the top of the moisture-proof buffer layer, a reinforcing layer being disposed at the top of the sound insulation and noise reduction layer, and a surface decorative layer being disposed at the top of the reinforcing layer; sealing edge strips are wrapped between the edges of the base layer, the bottom plate balancing layer, the moisture-proof buffer layer, the sound insulation and noise reduction layer, the reinforcing layer, and the surface decorative layer; and the layers are bonded together by hot pressing with an environmentally friendly hot melt adhesive film.

[0007] Preferably, the moisture-proof buffer layer includes a modified polyethylene film and a bamboo fiber mesh, wherein the bamboo fiber mesh is adhered to the top of the base layer, the modified polyethylene film covers the top of the bamboo fiber mesh, and the surface of the modified polyethylene film is provided with a nano-silica waterproof coating.

[0008] Preferably, the bamboo fiber mesh has a mesh count of 50-80 and is bonded to the base surface by hot melt adhesive.

[0009] Preferably, the sound insulation and noise reduction layer includes a centrifugal glass wool board and a butyl rubber damping sheet, wherein the centrifugal glass wool board is located on top of the moisture-proof buffer layer, and the butyl rubber damping sheet covers the top of the centrifugal glass wool board.

[0010] Preferably, the centrifugal glass wool board and the butyl rubber damping sheet are respectively provided with protrusions and grooves, and the two are connected by a groove structure.

[0011] Preferably, the surface decorative layer includes a substrate layer and a wear-resistant coating. The substrate layer is composed of melamine-impregnated paper or natural wood veneer, and the wear-resistant coating is composed of an aluminum oxide coating with a thickness of 5-10 μm.

[0012] Preferably, the reinforcing layer is made of glass fiber mesh and is cured by impregnation with epoxy resin.

[0013] Preferably, the sealing edge strip is made of silicone material, has a U-shaped cross-section, and has barbs on the inner side, which are engaged and fixed with the edges of each layer.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This application uses a moisture-proof buffer layer composed of modified polyethylene film and bamboo fiber mesh, combined with a nano waterproof coating and sealing edge strip, to form a three-dimensional moisture-proof system of barrier-adhesion-sealing, which solves the problem of easy peeling and water vapor penetration of existing single moisture-proof layers; 2. This application utilizes a composite structure of centrifugal glass wool board and butyl rubber damping sheet, combined with a groove interlocking design, to simultaneously absorb mid-to-high frequency sound waves and attenuate low-frequency vibrations. In conjunction with a sealing edge strip to block edge sound leakage, it significantly improves the sound insulation capability across the entire frequency band. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of the multi-layer composite moisture-proof and sound-insulating board of this utility model; Figure 2 This is an exploded view of the main body of the composite panel of this utility model; Figure 3 This is a schematic diagram of the structure of the moisture-proof buffer layer of this utility model; Figure 4 This is a schematic diagram of the sound insulation and noise reduction layer of this utility model; Figure 5 This is a schematic diagram of the surface decorative layer of this utility model.

[0016] In the diagram, 1. Composite board body; 2. Base layer; 3. Bottom plate balancing layer; 4. Moisture-proof buffer layer; 41. Modified polyethylene film; 42. Bamboo fiber mesh; 5. Sound insulation and noise reduction layer; 51. Centrifugal glass wool board; 52. Butyl rubber damping sheet; 6. Surface decorative layer; 61. Substrate layer; 62. Wear-resistant coating; 7. Reinforcing layer; 8. Sealing edge strip. Detailed Implementation

[0017] 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.

[0018] Please see Figure 1-5 The present invention provides the following technical solution: A multi-layer composite moisture-proof and sound-insulating board structure includes a composite board body 1, which includes a base layer 2 and a bottom plate balancing layer 3. The bottom plate balancing layer 3 is disposed at the bottom of the base layer 2. A moisture-proof buffer layer 4 is disposed on the top of the base layer 2. A sound insulation and noise reduction layer 5 is disposed on the top of the moisture-proof buffer layer 4. A reinforcing layer 7 is disposed on the top of the sound insulation and noise reduction layer 5. A surface decorative layer 6 is disposed on the top of the reinforcing layer 7. Sealing edge strips 8 are wrapped between the edges of the base layer 2, the bottom plate balancing layer 3, the moisture-proof buffer layer 4, the sound insulation and noise reduction layer 5, the reinforcing layer 7, and the surface decorative layer 6. The layers are bonded together by hot pressing with an environmentally friendly hot melt adhesive film.

[0019] In this embodiment, the composite board body 1 is constructed by sequentially stacking a base layer 2, a bottom plate balancing layer 3, a moisture-proof buffer layer 4, a sound insulation and noise reduction layer 5, a reinforcement layer 7, and a surface decorative layer 6. Each layer is bonded together under hot-press conditions with an environmentally friendly hot melt adhesive film to form a tight connection. The edges are wrapped with silicone sealing strips 8, thus forming a moisture-proof, sound-insulating, and structurally stable composite board body 1. The bottom plate balancing layer 3 can offset the stress caused by temperature and humidity changes in the base layer 2. The moisture-proof buffer layer 4 blocks water vapor, the sound insulation and noise reduction layer 5 absorbs and blocks sound waves, the reinforcement layer 7 enhances the overall strength, and the surface decorative layer 6 provides protection and aesthetics. The multi-layer collaborative design achieves the integrated functions of moisture-proof, sound insulation, and structural stability, solving the single-function defects of existing boards.

[0020] Specifically, such as Figure 3 As shown, the moisture-proof buffer layer 4 includes a modified polyethylene film 41 and a bamboo fiber mesh 42. The bamboo fiber mesh 42 is attached to the top of the base layer 2, and the modified polyethylene film 41 covers the top of the bamboo fiber mesh 42. The surface of the modified polyethylene film 41 is provided with a nano-silica waterproof coating.

[0021] Specifically, such as Figure 3 As shown, the bamboo fiber mesh 42 has a mesh count of 50-80 and is attached to the surface of the base layer 2 by hot melt adhesive.

[0022] In this embodiment: In the moisture-proof buffer layer 4, the bamboo fiber mesh 42 is first bonded to the surface of the base layer 2 with hot melt adhesive to form evenly distributed adhesive points. Then, the modified polyethylene film 41 with a nano-silica waterproof coating on its surface is covered on the mesh and bonded to the mesh by hot pressing. When water vapor comes into contact, the nano coating directly blocks liquid water. The bamboo fiber mesh 42 enhances the adhesion between the film and the base layer 2, preventing the film from falling off due to thermal expansion and contraction. The nano-waterproof coating of the modified polyethylene film 41 improves the moisture-proof efficiency. The bamboo fiber mesh 42 solves the problem of poor adhesion of traditional plastic films. The two work together to form a dual protection of barrier and adhesion, which is suitable for high humidity environments and reduces the risk of mold growth on the base layer 2.

[0023] Specifically, such as Figure 4 As shown, the sound insulation and noise reduction layer 5 includes a centrifugal glass wool board 51 and a butyl rubber damping sheet 52. The centrifugal glass wool board 51 is located on top of the moisture-proof buffer layer 4, and the butyl rubber damping sheet 52 covers the top of the centrifugal glass wool board 51.

[0024] Specifically, such as Figure 4 As shown, the centrifugal glass wool board 51 and the butyl rubber damping sheet 52 are respectively provided with protrusions and grooves, and the two are connected by a groove structure.

[0025] In this embodiment: In the sound insulation and noise reduction layer 5, the centrifugal glass wool board 51 is directly laid on top of the moisture-proof buffer layer 4. Its three-dimensional interwoven fiber structure can capture and absorb mid-to-high frequency sound waves (such as talking sounds and electrical noise); the butyl rubber damping sheet 52 is covered on the glass wool board, and through intermolecular friction, it converts low-frequency vibrations (such as footsteps and pipe resonance) into heat energy for dissipation, achieving full-frequency sound insulation; the two materials target mid-to-high frequency and low-frequency sound waves respectively, solving the problem of the limited effect of traditional single sound insulation materials, greatly improving the comprehensive sound insulation capability of the board, and meeting the needs of quietness in residences, offices, etc.; and the two are connected by interlocking grooves to reduce interlayer gaps. When sound waves are transmitted, the interlocking structure increases the reflection path, further weakening the sound energy, while enhancing the connection stability of the two layers of materials.

[0026] Specifically, such as Figure 5 As shown, the surface decorative layer 6 includes a substrate layer 61 and a wear-resistant coating 62. The substrate layer 61 is made of melamine-impregnated paper or natural wood veneer, and the wear-resistant coating 62 is made of aluminum oxide coating with a thickness of 5-10 μm.

[0027] Specifically, such as Figure 2 As shown, the reinforcing layer 7 is composed of a glass fiber mesh and is cured by impregnation with epoxy resin.

[0028] Specifically, such as Figure 2 As shown, the sealing edge strip 8 is made of silicone material, with a U-shaped cross-section and barbs on the inner side, which are engaged and fixed with the edges of each layer.

[0029] In this embodiment: the substrate layer 61 of the surface decorative layer 6 is attached to the top of the reinforcing layer 7, and then a 5-10μm thick aluminum oxide wear-resistant coating 62 is coated on the surface of the substrate layer 61. After curing, it forms a hard protective film. In daily use, the wear-resistant coating 62 directly bears friction and impact, preventing the substrate layer 61 from wearing out. At the same time, melamine paper or wood veneer provides a decorative effect. The fiberglass mesh is impregnated with epoxy resin and cured to form the reinforcing layer 7, which is attached to the top of the sound insulation and noise reduction layer 5. When the board is under stress, the fiber skeleton of the mesh disperses the stress, resists bending and impact, and prevents the sound insulation layer from deforming due to the softness of the material. The U-shaped sealing edge strip 8 made of silicone wraps around the edge of the board. The barbs on the inside are embedded in the gaps between the layers and are fixed by the elastic tension of the silicone. When water vapor or sound waves approach the edge, the edge strip blocks the penetration path, and the barbs prevent the edge strip from falling off, ensuring a long-term sealing effect.

[0030] Working principle: When the composite board body 1 is in use, if there is moisture in the environment, the moisture that first comes into contact with the surface of the board is blocked by the surface decorative layer 6. A small amount of moisture that penetrates into the interior is intercepted by the moisture-proof buffer layer 4. The nano-silica waterproof coating on the surface of the modified polyethylene film 41 directly blocks liquid water, forming a physical barrier. The bamboo fiber mesh 42 is tightly bonded to the base layer 2 through a hot melt adhesive bonding structure, preventing the modified polyethylene film 41 from falling off due to thermal expansion and contraction caused by temperature changes, thus ensuring the integrity of the moisture-proof layer. The tiny pores inside the base layer 2 can accommodate a small amount of moisture, which is slowly released through air circulation. Combined with the breathability of the bamboo fiber mesh 42, this prevents moisture from accumulating between layers and causing mold. When sound waves are generated in the environment, the sound insulation and noise reduction layer 5 weakens the sound energy through absorption and blocking. When mid-to-high frequency sound waves come into contact with the board, they are first blocked by the centrifugal glass wool board 51. The three-dimensional interwoven fiber structure captures sound waves, which are reflected and rubbed between the fibers, and the energy is gradually absorbed. Low-frequency vibrations are converted into heat energy and dissipated through the intermolecular friction of the butyl rubber damping sheet 52, preventing vibration from being rigidly transmitted through the board. Furthermore, the interlocking structure between the centrifugal glass wool board 51 and the butyl rubber damping sheet 52 reduces the gaps between layers, extends the sound wave reflection path, further weakens the sound energy, and enhances the connection stability of the two layers, preventing delamination caused by vibration. In daily use, when the board is subjected to external forces, the glass fiber mesh of the reinforcing layer 7 acts as a skeleton, distributing stress throughout the board, resisting bending and impact, and preventing the sound insulation and noise reduction layer 5 from deforming due to its soft material. The aluminum oxide wear-resistant coating 62 of the surface decorative layer 6 directly bears friction, protecting the substrate layer 61 from wear and maintaining the integrity of the appearance.

[0031] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 multi-layer composite moisture-proof and sound-insulating board structure, comprising a composite board body (1), characterized in that: The composite board body (1) includes a base layer (2) and a bottom plate balancing layer (3). The bottom plate balancing layer (3) is located at the bottom of the base layer (2). A moisture-proof buffer layer (4) is located on the top of the base layer (2). A sound insulation and noise reduction layer (5) is located on the top of the moisture-proof buffer layer (4). A reinforcement layer (7) is located on the top of the sound insulation and noise reduction layer (5). A surface decoration layer (6) is located on the top of the reinforcement layer (7). Sealing strips (8) are wrapped between the edges of the base layer (2), bottom plate balancing layer (3), moisture-proof buffer layer (4), sound insulation and noise reduction layer (5), reinforcement layer (7) and surface decoration layer (6). The layers are bonded together by hot pressing with an environmentally friendly hot melt adhesive film.

2. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 1, characterized in that: The moisture-proof buffer layer (4) includes a modified polyethylene film (41) and a bamboo fiber mesh (42). The bamboo fiber mesh (42) is attached to the top of the base layer (2), and the modified polyethylene film (41) covers the top of the bamboo fiber mesh (42). The surface of the modified polyethylene film (41) is provided with a nano-silica waterproof coating.

3. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 2, characterized in that: The bamboo fiber mesh (42) has a mesh count of 50-80 and is attached to the surface of the base layer (2) by hot melt adhesive.

4. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 1, characterized in that: The sound insulation and noise reduction layer (5) includes a centrifugal glass wool board (51) and a butyl rubber damping sheet (52). The centrifugal glass wool board (51) is located on top of the moisture-proof buffer layer (4), and the butyl rubber damping sheet (52) covers the top of the centrifugal glass wool board (51).

5. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 4, characterized in that: The centrifugal glass wool board (51) and the butyl rubber damping sheet (52) are respectively provided with protrusions and grooves, and the two are connected by a groove structure.

6. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 1, characterized in that: The surface decorative layer (6) includes a substrate layer (61) and a wear-resistant coating (62). The substrate layer (61) is composed of melamine-impregnated paper or natural wood veneer, and the wear-resistant coating (62) is composed of aluminum oxide coating with a thickness of 5-10 μm.

7. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 1, characterized in that: The reinforcing layer (7) is made of glass fiber mesh and is impregnated with epoxy resin and cured.

8. The multi-layer composite moisture-proof and sound-insulating board structure according to claim 1, characterized in that: The sealing edge strip (8) is made of silicone material, with a U-shaped cross section and barbs on the inner side. The barbs are engaged and fixed with the edges of each layer.

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