Flame-retardant light wood-plastic plate

Abstract

The utility model discloses a flame-retardant light wood-plastic plate which comprises a wood-plastic plate base body, an anti-impact protection layer and a fireproof coating, the anti-impact protection layer is arranged on the front face of the wood-plastic plate base body, the fireproof coating is arranged on the front face of the anti-impact protection layer, and the anti-impact protection layer is arranged on the front face of the fireproof coating. The shock-resistant protective layer comprises a flame retardant, an aluminum alloy bottom plate, an aluminum alloy honeycomb plate and an aluminum alloy cover plate, the aluminum alloy honeycomb plate is arranged on the aluminum alloy bottom plate, the flame retardant is arranged in honeycomb holes in the aluminum alloy honeycomb plate, and the aluminum alloy cover plate is arranged on the top surface of the aluminum alloy honeycomb plate to block the honeycomb holes. According to the flame-retardant light wood-plastic plate disclosed by the utility model, the protection on the wood-plastic plate base body is enhanced, and the flame-retardant and impact-resistant effects are improved.

Description

Technical Field

[0001] This utility model relates to the field of wood-plastic composite boards, and more particularly to a flame-retardant lightweight wood-plastic composite board. Background Technology

[0002] Wood-plastic composite (WPC) is a new type of environmentally friendly board made of PVC or other plastics mixed with wood powder. The plastic components ensure that WPC is moisture-resistant and corrosion-resistant, and it is widely used in wall decoration and other building decoration fields.

[0003] To improve the safety of wood-plastic composite (WPC) boards, flame retardants can be added to the raw materials. However, due to the large surface area of ​​WPC boards, adding a small amount of flame retardant has limited effect on improving their flame-retardant properties. Often, a large amount of flame retardant is required, typically accounting for more than 5% of the WPC board's weight. The more flame retardant added, the better the flame-retardant effect. However, excessive amounts of flame retardant negatively impact the structural stability of WPC boards, reducing their mechanical strength and impact resistance, necessitating improvements. Utility Model Content

[0004] The purpose of this invention is to provide a flame-retardant lightweight wood-plastic composite board that improves flame-retardant performance and impact resistance.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A flame-retardant lightweight wood-plastic composite board includes: a wood-plastic composite board substrate, an impact-resistant protective layer, and a fire-retardant coating. The impact-resistant protective layer is disposed on the front side of the wood-plastic composite board substrate, and the fire-retardant coating is disposed on the front side of the impact-resistant protective layer. The impact-resistant protective layer includes a flame retardant, an aluminum alloy base plate, an aluminum alloy honeycomb panel, and an aluminum alloy cover plate. The aluminum alloy honeycomb panel is disposed on the aluminum alloy base plate, the flame retardant is disposed in the honeycomb holes of the aluminum alloy honeycomb panel, and the aluminum alloy cover plate is disposed on the top surface of the aluminum alloy honeycomb panel to seal the honeycomb holes.

[0007] The flame retardant is a solid granular flame retardant.

[0008] The aluminum alloy base plate and the aluminum alloy honeycomb panel are integrated into one structure, and the aluminum alloy cover plate is welded to the aluminum alloy honeycomb panel.

[0009] A first flame-retardant adhesive layer is provided between the impact-resistant protective layer and the wood-plastic composite board substrate.

[0010] An aluminum plate is provided on the back of the wood-plastic composite board substrate.

[0011] A second flame-retardant adhesive layer is provided between the aluminum plate and the wood-plastic composite board substrate.

[0012] The beneficial effects of this utility model are as follows: A flame-retardant lightweight wood-plastic composite board is specially designed with an impact-resistant protective layer and a fireproof coating, which improves the flame-retardant effect. The impact-resistant protective layer is exposed only after the fireproof coating is damaged. The impact-resistant protective layer protects the wood-plastic composite board substrate and improves the impact resistance of the wood-plastic composite board substrate. After the aluminum alloy cover plate is damaged during the impact, the flame retardant in the honeycomb pores is exposed, which further improves the flame-retardant effect. This helps to reduce the flame retardant content in the wood-plastic composite board substrate, thereby ensuring the mechanical strength of the wood-plastic composite board substrate. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 yes Figure 1 A magnified view of part A in the middle. Detailed Implementation

[0015] The following is combined with Figures 1 to 2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0016] like Figure 1 The image shows a flame-retardant lightweight wood-plastic composite board, comprising: a wood-plastic composite board substrate 1, an impact-resistant protective layer 2, and a fire-retardant coating 3. The impact-resistant protective layer 2 is disposed on the front side of the wood-plastic composite board substrate 1, and a first flame-retardant adhesive layer 4 is disposed between the impact-resistant protective layer 2 and the wood-plastic composite board substrate 1, resulting in a robust structure. The impact-resistant protective layer protects the wood-plastic composite board substrate 1, improving its impact resistance and overall flame-retardant performance, and helps reduce the content of flame retardants in the wood-plastic composite board substrate.

[0017] The fire-retardant coating 3 is applied to the front of the impact-resistant protective layer 2. The fire-retardant coating 3 can be a fire-retardant coating with silicate as the base material. Applying it to the front of the impact-resistant protective layer 2 improves the flame-retardant effect. The impact-resistant protective layer 2 is exposed only after the fire-retardant coating 3 is damaged, thus achieving protection of the impact-resistant protective layer 2.

[0018] like Figure 2 As shown, the impact-resistant protective layer 2 includes a flame retardant 21, an aluminum alloy base plate 22, an aluminum alloy honeycomb panel 23, and an aluminum alloy cover plate 24. The aluminum alloy honeycomb panel 23 is disposed on the aluminum alloy base plate 22. In this embodiment, the aluminum alloy base plate 22 and the aluminum alloy honeycomb panel 23 adopt an integrated structure, which is structurally stable and convenient to produce.

[0019] The flame retardant 21 is disposed in the honeycomb holes of the aluminum alloy honeycomb panel 23, and the aluminum alloy cover plate 24 is disposed on the top surface of the aluminum alloy honeycomb panel 23 to seal the honeycomb holes. In this embodiment, the aluminum alloy cover plate 24 is welded to the aluminum alloy honeycomb panel 23 to prevent leakage of the flame retardant 21. The aluminum alloy cover plate 24 can be directly welded to the aluminum alloy honeycomb panel 23 by resistance welding to prevent it from falling off.

[0020] In this embodiment, the flame retardant 21 is a solid granular flame retardant. After the aluminum alloy cover plate 24 is damaged during the impact, the flame retardant in the honeycomb pores is exposed, and the flame retardant effect is further improved by the solid granular flame retardant.

[0021] An aluminum plate 6 is disposed on the back side of the wood-plastic composite board substrate 1. The aluminum plate 6 provides back protection for the wood-plastic composite board substrate 1, improving the flame-retardant effect on the back side and achieving double-sided flame retardancy. In this embodiment, a second flame-retardant adhesive layer 5 is disposed between the aluminum plate 6 and the wood-plastic composite board substrate 1. The second flame-retardant adhesive layer 5 not only achieves bonding and composite between the aluminum plate 6 and the wood-plastic composite board substrate 1, but also further enhances the flame-retardant performance.

[0022] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A flame-retardant lightweight wood-plastic composite board, characterized in that, include: The wood-plastic composite board substrate comprises an impact-resistant protective layer and a fire-retardant coating. The impact-resistant protective layer is disposed on the front side of the wood-plastic composite board substrate, and the fire-retardant coating is disposed on the front side of the impact-resistant protective layer. The impact-resistant protective layer includes a flame retardant, an aluminum alloy base plate, an aluminum alloy honeycomb panel, and an aluminum alloy cover plate. The aluminum alloy honeycomb panel is disposed on the aluminum alloy base plate, the flame retardant is disposed in the honeycomb holes of the aluminum alloy honeycomb panel, and the aluminum alloy cover plate is disposed on the top surface of the aluminum alloy honeycomb panel to seal the honeycomb holes.

2. The flame-retardant lightweight wood-plastic composite board according to claim 1, characterized in that, The flame retardant is a solid granular flame retardant.

3. The flame-retardant lightweight wood-plastic composite board according to claim 1, characterized in that, The aluminum alloy base plate and the aluminum alloy honeycomb panel adopt an integrated structure, and the aluminum alloy cover plate is welded to the aluminum alloy honeycomb panel.

4. The flame-retardant lightweight wood-plastic composite board according to claim 1, characterized in that, A first flame-retardant adhesive layer is provided between the impact-resistant protective layer and the wood-plastic composite board substrate.

5. The flame-retardant lightweight wood-plastic composite board according to claim 1, characterized in that, An aluminum plate is provided on the back of the wood-plastic composite board substrate.

6. The flame-retardant lightweight wood-plastic composite board according to claim 5, characterized in that, A second flame-retardant adhesive layer is provided between the aluminum plate and the wood-plastic composite board substrate.

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