A chipboard structure for a cabinet door

Abstract

The utility model discloses a kind of shavings board structures for cabinet door, including shavings board base layer, the outer side surface of shavings board base layer is provided with easy cleaning veneer, the inner side surface of shavings board base layer is provided with moisture-proof board layer, evenly provided with fire-retardant particle layer between moisture-proof board layer and shavings board base layer, and the inner side surface of moisture-proof board layer is provided with balance layer. By setting independent fire-retardant particle layer between shavings board base layer and moisture-proof board layer, the fire-retardant effect of cabinet door is greatly improved, and the cost increase and mechanical property degradation problem caused by mixing a large amount of fire retardant with the entire substrate can be avoided. Fire-retardant particle layer is concentratedly distributed in key position, can form dense heat insulation layer quickly when meeting fire, to realize more optimal fire-retardant effect with less fire retardant dosage, while the original strength of shavings board base layer is maximally maintained.

Description

Technical Field

[0001] This utility model relates to the field of particleboard technology, specifically a particleboard structure for cabinet doors. Background Technology

[0002] Particleboard is widely used in the manufacture of cabinet doors due to its low cost and good processing performance. However, kitchen environments have high fire resistance requirements for cabinet doors, and the complex nature of kitchen environments makes it difficult for traditional particleboard to fully meet these needs.

[0003] Existing particleboard for cabinets is typically produced by mixing flame retardants with wood chips and adhesives during the particleboard manufacturing process and then hot-pressing the mixture to impart overall flame-retardant properties. However, this method of adding flame retardants throughout the board requires a large amount to achieve the desired fire-resistant effect. This not only significantly increases raw material costs but also, excessive addition can severely damage the bonding strength of wood fibers, leading to a decrease in the mechanical strength of the board and affecting the lifespan of the cabinet doors. Therefore, we propose a new particleboard structure for cabinet doors. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a particleboard structure for cabinet doors. By setting an independent flame-retardant particle layer between the particleboard base layer and the moisture-proof board layer, the flame-retardant effect of the cabinet door is greatly improved. It can also avoid the increased cost and deterioration of mechanical properties caused by mixing a large amount of flame retardant with the entire substrate, and can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a particleboard structure for cabinet doors, comprising a particleboard base layer, an easy-to-clean finishing layer on the outer surface of the particleboard base layer, a moisture-proof board layer on the inner surface of the particleboard base layer, a flame-retardant particle layer uniformly disposed between the moisture-proof board layer and the particleboard base layer, and a balancing layer disposed on the inner surface of the moisture-proof board layer.

[0006] As a preferred technical solution of this utility model, the particleboard base layer is formed by hot pressing a mixture of wood shavings, fire retardant and adhesive.

[0007] As a preferred technical solution of this utility model, the moisture-proof board layer is an aluminum foil composite layer, which is composed of aluminum foil and non-woven fabric or kraft paper.

[0008] As a preferred technical solution of this utility model, a groove is provided at the top or bottom of the outer surface of the easy-to-clean finishing layer.

[0009] As a preferred embodiment of this invention, the inner surface of the balancing layer is provided with a fire-retardant wood frame.

[0010] As a preferred embodiment of this utility model, a sealing ring is provided on the inner surface of the fire-retardant wood frame.

[0011] As a preferred embodiment of this invention, both the balancing layer and the side surfaces of the fire-retardant wood frame are coated with a moisture-proof coating.

[0012] As a preferred embodiment of this invention, the outer surface of the easy-to-clean finish layer is coated with a self-cleaning coating layer.

[0013] Compared with existing technologies, the advantages of this invention are as follows: By setting an independent flame-retardant particle layer between the particleboard base layer and the moisture-proof board layer, the flame-retardant effect of the cabinet door is greatly improved, and the increased cost and deterioration of mechanical properties caused by mixing a large amount of flame retardant with the entire substrate are avoided. The flame-retardant particle layer is concentrated in key locations, and can quickly form a dense heat insulation layer when exposed to fire, achieving a better flame-retardant effect with less flame retardant, while maintaining the original strength of the particleboard base layer to the maximum extent. The easy-to-clean finishing layer set on the outermost layer provides excellent stain resistance and easy cleaning ability. The moisture-proof board layer can prevent moisture penetration, avoid the board from being deformed by moisture, and prevent food and utensils inside the cabinet from getting damp. The innermost balancing layer can offset the stress generated by the outer layer, ensuring that the door panel remains flat and does not warp in environments with changes in temperature and humidity, ensuring the long-term use and aesthetics of the cabinet door. It is multifunctional and can comprehensively meet the needs of kitchen use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of another embodiment of the present invention; Figure 3 This utility model Figure 2 A schematic diagram of a partial cross-section of the structure from the side view.

[0015] In the diagram: 1. Particleboard base layer, 2. Easy-clean finishing layer, 3. Flame-retardant particle layer, 4. Moisture-resistant board layer, 5. Balancing layer, 6. Groove, 7. Flame-retardant wood frame, 8. Sealing ring, 9. Self-cleaning coating layer. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1This utility model provides a technical solution: a particleboard structure for cabinet doors, including a particleboard base layer 1. The outer surface of the particleboard base layer 1 is provided with an easy-to-clean finishing layer 2. The easy-to-clean finishing layer 2 is preferably a high-density melamine impregnated paper. Its surface is treated with nano-titanium dioxide photocatalysis to form a micro-nano structure hydrophobic and anti-fouling coating with a lotus leaf effect. The surface is smooth and dense, with excellent hydrophobic and oleophobic properties. Oil stains are difficult to adhere to, and even if they do, they are very easy to wipe clean, which greatly facilitates the daily cleaning and maintenance of the kitchen environment.

[0018] A moisture-resistant board layer 4 is provided on the inner surface of the particleboard base layer 1. A flame-retardant particle layer 3 is evenly distributed between the moisture-resistant board layer 4 and the particleboard base layer 1, which greatly improves the flame-retardant effect of the cabinet door and avoids the increased cost and deterioration of mechanical properties caused by mixing a large amount of flame retardant with the entire substrate. The flame-retardant particle layer is concentrated in key locations and can quickly form a dense heat insulation layer when exposed to fire, achieving a better flame-retardant effect with less flame retardant while maintaining the original strength of the particleboard base layer to the maximum extent.

[0019] The flame-retardant granular layer 3 can be selected from one or more of expandable graphite (EG) granules, aluminum hydroxide / magnesium (ATH / MDH) granules, and intumescent flame retardant (APP / PER / MEL) compound granules.

[0020] A balancing layer 5 is provided on the inner surface of the moisture-proof board layer 4. The balancing layer is preferably a balancing paper impregnated with phenolic resin or melamine resin, with a basis weight of 120-150g / m², which is used to balance the internal stress of the board and prevent the door panel from warping and deforming.

[0021] In a preferred embodiment, the particleboard base layer 1 is formed by hot-pressing a mixture of wood shavings, fire retardant, and adhesive. The fire retardant is an intumescent fire retardant composed of ammonium polyphosphate, pentaerythritol, and melamine in a specific ratio. Combined with the flame-retardant particle layer 3, this achieves superior flame-retardant performance. When the two are combined, the flame-retardant reaction (the intumescent fire retardant expands into a carbonized heat-insulating layer upon heating) can be effectively triggered when exposed to open flames, whether on the surface, inside, or in the interlayer of the board. This significantly delays the spread and penetration of flames, overcoming the limitations that may exist with a single flame-retardant layer. This solution is suitable for scenarios with high fire safety requirements, such as commercial kitchens, high-standard residences, public buildings, or places with strict fire safety regulations.

[0022] In a preferred embodiment, the moisture-proof board layer 4 is preferably an aluminum foil composite layer, composed of aluminum foil and non-woven fabric or kraft paper, and bonded to the inner surface of the particleboard base layer 1 with an environmentally friendly adhesive. The aluminum foil itself has 100% barrier properties, effectively preventing moisture penetration and avoiding board deformation due to moisture. It also eliminates the problems of insect infestation and mold growth, enhancing the durability of the board in humid environments.

[0023] An optional technical solution involves providing a groove 6 at the top or bottom of the outer surface of the easy-to-clean finish layer 2. This allows the user to reach into the groove 6 to open the cabinet door, making operation simple and convenient. The location of the groove 6 depends on the cabinet's installation position: when the cabinet is installed under the stove, the groove 6 is at the top; when the cabinet is installed high on the wall, the groove 6 is at the bottom.

[0024] In a preferred embodiment, the outer surface of the easy-to-clean finish layer 2 is coated with a self-cleaning coating layer 9. This self-cleaning coating layer is a novel functional material developed by the team of Lu Yao, a graduate of Dalian University of Technology. Its core technology uses fluorinated titanium dioxide nanoparticles to construct a micro-nano layered structure, simulating the superhydrophobic properties of lotus leaf surface to achieve self-cleaning function. This breaks through the technical bottleneck of traditional coatings being susceptible to oil stains and physical wear and tear, and still maintains superhydrophobic performance after sandpaper friction test. It can further improve the self-cleaning ability of cabinet surface and is suitable for environments with a lot of oil stains, such as kitchens.

[0025] Please see Figure 2-3 This utility model also provides another embodiment, which is largely the same as the aforementioned embodiment, except that: a fire-retardant wood frame 7 is provided on the inner surface of the balancing layer 5, and a sealing ring 8 is provided on the inner surface of the fire-retardant wood frame 7. The sealing ring 8 matches the size of the inner opening of the cabinet. When the cabinet door is closed, the sealing ring 8 can seal and isolate the cabinet door from the inside of the cabinet, preventing insects or dust, ensuring the hygiene of the cabinet, and further improving the sealing performance. The fire-retardant wood frame 7 and the sealing ring 8 are the same size and both match the size of the inner opening of the cabinet. When the cabinet door is closed, the fire-retardant wood frame 7 is also stuck inside the cabinet to isolate the cabinet door from the sealing ring 8. The fire-retardant wood frame 7 has undergone physical or chemical treatment and is not easily combustible in the event of a fire, which can further improve the fire resistance performance, while avoiding affecting the function of the sealing ring 8.

[0026] In a further preferred embodiment, both the side surfaces of the balancing layer 5 and the fire-retardant wood frame 7 are coated with a moisture-proof coating. The moisture-proof coating is preferably a highly moisture-resistant acrylic waterproof coating, which can further improve the moisture-proof effect on the inside of the cabinet door.

[0027] The parts not disclosed in this utility model are all prior art, and their specific structures, materials, and working principles will not be described in detail. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A particleboard structure for cabinet doors, characterized in that: The material includes a particleboard base layer (1), an easy-to-clean finishing layer (2) on the outer surface of the particleboard base layer (1), a moisture-proof board layer (4) on the inner surface of the particleboard base layer (1), a flame-retardant particle layer (3) uniformly disposed between the moisture-proof board layer (4) and the particleboard base layer (1), and a balancing layer (5) disposed on the inner surface of the moisture-proof board layer (4).

2. The particleboard structure for cabinet doors according to claim 1, characterized in that: The particleboard base layer (1) is formed by hot pressing a mixture of wood shavings, fire retardant and adhesive.

3. The particleboard structure for cabinet doors according to claim 1, characterized in that: The moisture-proof board layer (4) is an aluminum foil composite layer, which is made of aluminum foil and non-woven fabric or kraft paper.

4. The particleboard structure for cabinet doors according to claim 1, characterized in that: The easy-to-clean finishing layer (2) has a groove (6) at the top or bottom of its outer surface.

5. A particleboard structure for cabinet doors according to claim 1, characterized in that: The inner surface of the balancing layer (5) is provided with a fire-retardant wood frame (7).

6. A particleboard structure for cabinet doors according to claim 5, characterized in that: A sealing ring (8) is provided on the inner surface of the fire-retardant wood frame (7).

7. A particleboard structure for cabinet doors according to claim 6, characterized in that: The side surfaces of the balancing layer (5) and the fire-retardant wood frame (7) are both coated with a moisture-proof coating.

8. A particleboard structure for cabinet doors according to any one of claims 1-7, characterized in that: The outer surface of the easy-clean finish layer (2) is coated with a self-cleaning coating layer (9).

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