Decorative wall panel with moisture-proof function

Abstract

The utility model relates to the technical field of decorative wallboard, specifically disclose a kind of decorative wallboard with moisture-proof function, including substrate, the substrate is sequentially composite from inside to outside, vapour barrier: the continuous dense film formed by single-component polyurethane waterproof coating coated on the surface of substrate, thickness is set between 0.3-1mm, moisture-proof layer: by spraying on vapour barrier nanometer silicon dioxide waterproof coating is made of, thickness is set between 0.05-0.2mm, water absorption layer: set on moisture-proof layer, by filling with high water-absorbing resin and alginate fibre honeycomb composite water-absorbing material is made of, thickness is set between 5-8mm, the decorative wallboard, with multiple moisture-proof effect, vapour barrier blocks water vapor penetration, moisture-proof layer forms superhydrophobic barrier, water absorption layer actively absorbs and adjusts humidity, ventilation layer promotes air circulation and accelerates water vapor evaporation, each layer synergistic effect realizes efficient moisture-proof, significantly reduce decorative wallboard damp deformation and mildew risk, improve service life, strong practicality.

Description

Technical Field

[0001] This utility model belongs to the field of decorative wall panel technology, and in particular relates to a decorative wall panel with moisture-proof function. Background Technology

[0002] Decorative wall panels are decorative materials used to cover and protect walls while enhancing the aesthetics of a space. They are mainly divided into the following types: wood-based (such as solid wood wall panels and bamboo-fiber integrated wall panels), stone-based (such as natural marble and artificial stone texture panels), plastic-based (such as PVC wall panels), metal-based (such as aluminum composite panels), and new composite materials (such as 3D wall panels), etc. They are widely used in background walls, ceilings, and overall wall decoration in homes and commercial spaces.

[0003] Existing decorative wall panels mostly use a single moisture-proof layer, such as ordinary waterproof coating or simple plastic film. After long-term use, they are difficult to effectively block the penetration of environmental moisture. The water vapor accumulated inside cannot be discharged in time, which accelerates the deformation, warping and even mold growth of the wall panels. This needs to be improved. Therefore, a decorative wall panel with moisture-proof function is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a decorative wall panel with moisture-proof function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a decorative wall panel with moisture-proof function, comprising a base plate, wherein the base plate is sequentially composited with the following components from the inside to the outside:

[0006] Vapor barrier: A continuous, dense film formed by a single-component polyurethane waterproof coating applied to the surface of a substrate, with a thickness between 0.3 and 1 mm;

[0007] Moisture-proof layer: Composed of a nano-silica waterproof coating sprayed onto the vapor barrier, with a thickness between 0.05-0.2mm;

[0008] Absorbent layer: Located above the moisture-proof layer, it is composed of a honeycomb composite absorbent material filled with super absorbent resin and alginate fiber, with a thickness between 5-8mm.

[0009] Ventilation layer: Located above the absorbent layer, it is a three-dimensional mesh ventilation structure made of high-strength plastic, with a thickness between 3-5mm;

[0010] Decorative layer: An environmentally friendly PETG film is applied to the outer surface of the ventilation layer using a hot-pressing process, with a thickness between 0.3-0.8 mm.

[0011] Preferably, the substrate is a calcium silicate board, with calcium materials, silica materials and reinforcing fibers as the main raw materials, and the thickness is set between 8-12 mm.

[0012] Preferably, the single-component polyurethane waterproof coating of the vapor barrier layer has low-temperature flexibility, weather resistance, and resistance to water vapor penetration.

[0013] Preferably, the nano-silica waterproof coating of the moisture-proof layer has superhydrophobic properties.

[0014] Preferably, the superabsorbent resin in the absorbent layer can absorb moisture and form a water-absorbing network together with the alginate fiber to regulate humidity balance.

[0015] Preferably, the three-dimensional mesh structure of the ventilation layer forms interconnected airflow paths.

[0016] Preferably, the PETG film surface of the decorative layer is digitally printed with a decorative texture and then hardened.

[0017] In summary, compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a substrate, a vapor barrier layer, a moisture-proof layer, a water-absorbing layer, a ventilation layer, and a decorative layer, and working together, the decorative wall panel has multiple moisture-proof effects. The vapor barrier layer blocks water vapor penetration, the moisture-proof layer forms a superhydrophobic barrier, the water-absorbing layer actively absorbs and regulates humidity, and the ventilation layer promotes air circulation and accelerates water vapor evaporation. The synergistic effect of each layer achieves efficient moisture protection, significantly reduces the risk of decorative wall panels becoming deformed and moldy due to moisture, improves service life, and is highly practical. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] Legend:

[0021] 1. Substrate; 2. Vapor barrier; 3. Moisture barrier; 4. Water absorbent layer; 5. Ventilation layer; 6. Decorative layer. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 This utility model provides a technical solution:

[0024] A decorative wall panel with moisture-proof function includes a base plate 1, wherein the base plate 1 is provided with the following components sequentially from the inside to the outside:

[0025] Vapor barrier 2: A continuous and dense film formed by a single-component polyurethane waterproof coating applied to the surface of substrate 1, with a thickness between 0.3-1 mm;

[0026] Moisture barrier 3: It consists of a nano-silica waterproof coating sprayed onto the vapor barrier 2, with a thickness between 0.05-0.2 mm;

[0027] Absorbent layer 4: Located above the moisture-proof layer 3, it is composed of a honeycomb composite absorbent material filled with super absorbent resin and alginate fiber, with a thickness between 5-8mm.

[0028] Ventilation layer 5: Located above the absorbent layer 4, it is a three-dimensional mesh ventilation structure made of high-strength plastic, with a thickness between 3-5mm;

[0029] Decorative layer 6: Made of environmentally friendly PETG film, it is applied to the outer surface of ventilation layer 5 by hot pressing and lamination process, with a thickness between 0.3-0.8mm.

[0030] Substrate 1 is a calcium silicate board, with calcium materials, silica materials and reinforcing fibers as the main raw materials, and the thickness is set between 8-12mm.

[0031] The single-component polyurethane waterproof coating of vapor barrier 2 has low-temperature flexibility, weather resistance, and resistance to water vapor penetration.

[0032] The nano-silica waterproof coating of moisture barrier layer 3 has superhydrophobic properties.

[0033] The superabsorbent resin in absorbent layer 4 can absorb moisture and form a water-absorbing network together with alginate fibers to regulate humidity balance.

[0034] The three-dimensional grid structure of ventilation layer 5 forms interconnected airflow paths.

[0035] The PETG film surface of decorative layer 6 is digitally printed with decorative textures and then hardened.

[0036] Working principle:

[0037] In the decorative wall panel with moisture-proof function, the substrate 1 is made of calcium silicate board, which is made of calcium materials, silica materials and reinforcing fibers as the main raw materials and manufactured by a specific process. It has high strength and stability. In the moisture-proof process, it serves as the basic carrier of the wall panel, providing solid support for the outer functional layers, bearing external pressure and the weight of the inner layers, preventing the wall panel from deforming due to uneven stress, and ensuring that the subsequent vapor barrier layer 2, moisture-proof layer 3 and so on can function normally.

[0038] The vapor barrier 2 is a continuous and dense film formed by a single-component polyurethane waterproof coating with a thickness of 0.3-1mm applied to the surface of the substrate 1. It has low-temperature flexibility, weather resistance and water vapor penetration resistance. In actual work, when there is a tendency for water vapor to penetrate into the wall, this film can block the water vapor from entering the wall panel due to its dense structure and water vapor penetration resistance, thereby reducing water vapor intrusion from the source and avoiding dampness of the wall due to condensation.

[0039] The moisture barrier 3 is composed of a nano-silica waterproof coating with a thickness of 0.05-0.2mm sprayed on the vapor barrier 2. It has super hydrophobic properties. When external moisture comes into contact with the surface of the wall panel, due to the super hydrophobic properties of the nano-silica waterproof coating, the water droplets have a very large contact angle on its surface, cannot adhere to the surface, and will quickly roll off, making it difficult to penetrate into the interior of the wall panel.

[0040] The absorbent layer 4 is placed on top of the moisture-proof layer 3. It is composed of a honeycomb composite absorbent material filled with super absorbent resin and alginate fiber, with a thickness of 5-8mm. When the ambient humidity increases, the super absorbent resin can absorb hundreds of times its own weight in water due to its strong water absorption capacity. The water absorption network formed together with the alginate fiber can quickly capture and absorb excess water vapor in the air. When the ambient humidity decreases, the absorbent layer 4 will slowly release the stored water, thereby actively regulating the indoor humidity balance, keeping the ambient humidity around the wall panel in a relatively stable state, and reducing the impact of humidity changes on the wall panel.

[0041] The ventilation layer 5 is located above the water absorption layer 4. It is a three-dimensional mesh ventilation structure made of high-strength plastic with a thickness of 3-5mm. It forms an interconnected air circulation path. When the humidity around the wall panel is high, the air can naturally convect in these interconnected mesh channels, accelerating the evaporation and diffusion of water vapor.

[0042] Decorative layer 6 is made of environmentally friendly PETG film, which is applied to the outer surface of ventilation layer 5 through a hot-pressing process. The thickness is 0.3-0.8mm. Its surface is digitally printed with decorative textures and then hardened. Decorative layer 6 not only meets the needs of different decoration styles through various decorative textures and beautifies the space, but also has the characteristics of wear resistance, scratch resistance and easy cleaning after hardening. At the same time, it has a certain degree of waterproof performance, which can prevent external moisture and stains from directly contacting the internal structure of the wall panel, further protecting the internal vapor barrier layer 2, moisture-proof layer 3 and other functional layers, extending the service life of the wall panel, and making it easy to maintain daily.

[0043] When humid air from outside comes into contact with the wall panel, the ventilation layer 5 beneath the decorative layer 6 comes into play. Its three-dimensional mesh structure forms many tiny air channels, allowing air to flow freely inside the wall panel, accelerating the diffusion and evaporation of moisture and preventing moisture accumulation. If a small amount of moisture still enters, the water-absorbing layer 4 beneath the ventilation layer 5 comes into play. The honeycomb structure filled with superabsorbent resin and alginate fibers quickly absorb moisture. The superabsorbent resin swells upon contact with water to form a gel that locks in the moisture, while the alginate fibers further absorb moisture through their own properties. Together, they control the humidity within a safe range. When the absorbent layer 4 reaches its moisture absorption limit, the moisture-proof layer 3 immediately below it begins to function. The nano-silica coating has superhydrophobic properties, causing water droplets to form spheres and roll off, preventing them from adhering and penetrating, thus effectively blocking moisture from penetrating further. The innermost vapor barrier layer 2 is the last line of defense, consisting of a dense film formed by a single-component polyurethane waterproof coating that adheres tightly to the surface of the calcium silicate substrate 1. Utilizing its low-temperature flexibility and water vapor penetration resistance, it completely blocks the exchange of moisture between the inside and outside of the substrate 1, preventing the substrate 1 from becoming damp and deformed. All layers work together to form comprehensive moisture protection from the outside in.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A decorative wall panel with moisture-proof function, comprising a substrate (1), characterized in that, The substrate (1) is provided with the following components sequentially from the inside to the outside: Vapor barrier (2): A continuous and dense film formed by a single-component polyurethane waterproof coating applied to the surface of the substrate (1), with a thickness between 0.3-1 mm; Moisture-proof layer (3): It consists of a nano-silica waterproof coating sprayed onto the vapor barrier layer (2), with a thickness between 0.05-0.2 mm; Absorbent layer (4): Set on top of moisture-proof layer (3), it is composed of honeycomb composite absorbent material filled with super absorbent resin and alginate fiber, with a thickness of 5-8mm; Ventilation layer (5): Located above the absorbent layer (4), it is a three-dimensional mesh ventilation structure made of high-strength plastic with a thickness of 3-5mm; Decorative layer (6): An environmentally friendly PETG film is applied to the outer surface of the ventilation layer (5) by hot pressing and bonding process, with a thickness of 0.3-0.8 mm.

2. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The substrate (1) is a calcium silicate board, with calcium materials, silica materials and reinforcing fibers as the main raw materials, and the thickness is set between 8-12 mm.

3. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The single-component polyurethane waterproof coating of the vapor barrier (2) has low-temperature flexibility, weather resistance, and water vapor penetration resistance.

4. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The nano-silica waterproof coating of the moisture-proof layer (3) has superhydrophobic properties.

5. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The superabsorbent resin in the absorbent layer (4) can absorb moisture and form a water-absorbing network together with the alginate fiber to regulate humidity balance.

6. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The three-dimensional mesh structure of the ventilation layer (5) forms interconnected airflow paths.

7. The decorative wall panel with moisture-proof function according to claim 1, characterized in that: The decorative layer (6) has a PETG film surface that is digitally printed with a decorative texture and then hardened.

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