Fiber reinforced composite material plate and manufacturing process thereof

Abstract

The invention relates to a fiber reinforced composite material plate and a manufacturing process thereof. The fiber reinforced composite material plate is characterized by comprising a middle base material layer, and a first graft modified polyethylene resin film layer, a fiber cloth layer, a second graft modified polyethylene resin film layer and a surface veneer layer which are sequentially arranged on the upper side and the lower side of the middle base material layer. The fiber reinforced composite material plate is low in manufacturing cost, green and environmentally friendly, the application field of bamboo wood and fast-growing wood can be greatly widened, and therefore the contradiction between supply and demand of wood is relieved.

Description

Technical Field

[0002] The invention belongs to the technical field of bamboo-wood based composite materials, and in particular relates to a fiber reinforced composite material board which can be used in an indoor load-bearing environment and does not release formaldehyde, and a manufacturing process thereof. Background Art

[0004] my country's high-quality wood resources are very scarce, but it is rich in fast-growing artificial forests such as poplar and eucalyptus and bamboo forest resources. China is the world's largest bamboo-producing country. Bamboo has the characteristics of high strength, renewable and biodegradable. Replacing plastic with bamboo and wood with bamboo has become an important measure to alleviate my country's shortage of wood resources and reduce plastic pollution and other environmental protection measures. Traditional bamboo-wood adhesives include urea-formaldehyde resin adhesive, phenol-formaldehyde resin adhesive and epoxy resin adhesive. Among them, urea-formaldehyde resin adhesive has limited adhesion to bamboo and wood substrates and releases formaldehyde, phenol-formaldehyde resin adhesive contains formaldehyde and free phenol, and epoxy resin adhesive releases a large amount of organic volatiles during use. All three cause pollution to the environment.

[0005] At present, due to the protection of the environment and forest resources by countries around the world, as well as my country's timber restriction policy, high-quality timber is extremely scarce. However, with people's attention and preference for wood materials, the demand for wood composite materials has continued to increase in recent years. How to optimize the utilization of artificial forest wood and prepare low-cost and high-performance wood products is an important research and development direction. Carbon fiber is widely used in reinforcing materials because of its advantages such as high strength, good fatigue resistance, small thermal expansion coefficient, good corrosion resistance, and low fiber density. However, the traditional phenolic adhesive contains formaldehyde and free phenol, and the epoxy resin adhesive releases a large amount of organic volatiles during use, both of which cause environmental pollution.

[0006] At present, the Chinese patent "Integrated molded product, fiber reinforced composite material plate and housing for electrical and electronic equipment" announcement number CN101824205A has been retrieved. The integrated molded product is formed by connecting a component (I) containing a fiber reinforced composite material plate and other components (II). The fiber reinforced composite material plate is formed by (a) continuous reinforcing fibers, (b) a matrix resin with a thermosetting resin as the main component, and (c) a flame retardant. It is characterized in that the flame retardancy of the component (I) based on UL-94 is V-1 or V-0 as measured by a test piece of substantial thickness; the fiber reinforced composite material plate of this patent is not suitable for indoor floors or decorative panels.

[0007] And the Chinese patent "Fiber reinforced composite material plate and steel plate combined structure for concrete beam reinforcement" was retrieved, with announcement number CN106337567B, which includes multiple fiber reinforced composite material plates and multiple steel plates. According to the stress characteristics of the concrete beam to be reinforced, the fiber reinforced composite material plates are discontinuously pasted to the bottom of the concrete beam to be reinforced, and the adjacent fiber reinforced composite material plates are spaced at an appropriate length. The two spaced fiber reinforced composite material plates are fixedly connected with a steel plate. The invention utilizes externally bonded high-strength but brittle fiber reinforced composite material plates to improve the stiffness and bearing capacity of the concrete beam, and utilizes steel plates with good ductility to improve the deformation capacity of the area near the mid-span of the concrete beam, avoiding the continuous brittle failure of the concrete beam externally bonded with the fiber reinforced composite material plates; and is beneficial to reducing the stress of the mid-span concrete and the fiber reinforced composite material plates, delaying the peeling failure of the fiber reinforced composite material plates, improving the utilization rate of the fiber reinforced composite materials, and increasing the bearing capacity of the concrete beam. The patent is also not applicable to indoor floors or decorative panels. Summary of the invention

[0008] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a fiber reinforced composite material board and a manufacturing process thereof. The fiber reinforced composite material board has low manufacturing cost and is green and environmentally friendly, and can greatly broaden the application fields of bamboo and fast-growing wood, thereby alleviating the contradiction between supply and demand of wood.

[0009] The fiber reinforced composite material plate of the present invention is characterized by comprising an intermediate substrate layer and a first graft modified polyethylene resin film layer, a fiber cloth layer, a second graft modified polyethylene resin film layer and a surface single board layer which are sequentially arranged on the upper and lower sides of the intermediate substrate layer.

[0010] Preferably, the intermediate substrate layer is a wood-based material or a bamboo-based material, and the moisture content of the intermediate substrate layer is 8-12%.

[0011] Preferably, the wood-based material is a 9 mm thick plywood, and the bamboo-based material is a 28 mm thick container bottom plate.

[0012] Preferably, the fiber cloth layer is aramid fiber cloth or carbon fiber cloth.

[0013] Preferably, the specification of the above-mentioned aramid fiber cloth is 200D60G-3000D400G.

[0014] Preferably, the specification of the above-mentioned carbon fiber cloth is 3k160g-3k300g.

[0015] Preferably, the thickness of the first graft-modified polyethylene resin film layer and the second graft-modified polyethylene resin film layer is 0.04 mm.

[0016] Preferably, the surface veneer layer is a 1.4 mm thick wood veneer.

[0017] The manufacturing process of the fiber reinforced composite material plate of the present invention is characterized by: Step (1). Raw material preparation (1.1) Bamboo-based materials: Use 28mm container bottom board with a specification of 60cm×60cm, and dry it to a moisture content of 8%-12%; (1.2) Wood-based materials: Use 9mm plywood with a specification of 30cm×30cm, and dry it to a moisture content of 8%-12%; (1.3) Reinforcement material: Select aramid fiber cloth with specifications of 200D60G-3000D400G; (1.4) Adhesive material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm; (1.5) Surface wood veneer: 1.4mm thick wood veneer; Step (2): Assembly Aramid fiber cloth is laid on and below the bamboo-based material or wood-based material as the middle substrate layer, the outermost layer is the wood veneer, and a grafted modified polyethylene resin film is used as an adhesive between the middle substrate layer and the aramid fiber cloth, and between the aramid fiber cloth and the wood veneer; Step (3). Press plate Use one-time hot pressing or hot pressing followed by cold pressing: (3.1) The one-time hot pressing process is as follows: hot pressing temperature 140-160℃, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; (3.2) The process of hot pressing followed by cold pressing is as follows: hot pressing temperature 140-160°C, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; cold pressing pressure 1.0-2.0MPa, cold pressing time: 30s-300s; (4) Trimming and inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours before trimming. After inspection, the aramid fiber reinforced composite board product is obtained.

[0018] The manufacturing process of the fiber reinforced composite material plate of the present invention is characterized by: Step (1). Raw material preparation (1.1) Wood-based materials: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 8%-12%; (1.2) Reinforcement material: Select carbon fiber cloth with specifications of 3k160g-3k300g; (1.3) Adhesive material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm; (1.4) Wood veneer: 1.4mm thick wood veneer; Step (2): Assembly Carbon fiber cloth is laid on and below the bamboo-based material or wood-based material as the middle substrate layer, the outermost layer is a wooden veneer, and a grafted modified polyethylene resin film is used as an adhesive between the middle substrate layer and the carbon fiber cloth, and between the carbon fiber cloth and the wooden veneer; Step (3). Press plate Use one-time hot pressing method, or hot pressing followed by cold pressing method: (3.1) The one-time hot pressing process is as follows: hot pressing temperature 140-160℃, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; (3.2) The process of hot pressing followed by cold pressing is as follows: hot pressing temperature 140-160°C, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; cold pressing pressure 1.0-2.0MPa, cold pressing time: 30s-300s; Step (4): Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours before trimming. After inspection, a carbon fiber reinforced wood-based composite material product is obtained.

[0019] The composite board of the present application adopts a grafted modified polyethylene resin film to replace the traditional adhesive, which has the advantages of no organic solvents and no formaldehyde release. It is used as an adhesive between aramid fiber cloth or carbon fiber cloth and bamboo and wood-based materials to prepare high-strength bamboo-wood-based composite material boards, making the composite board low in production cost and green and environmentally friendly, which will greatly broaden the application areas of bamboo and fast-growing wood, thereby alleviating the contradiction between wood supply and demand.

[0020] The grafted modified polyethylene resin glue and aramid fiber cloth or carbon fiber reinforcement material in this application can make the bamboo-based product have good peel resistance and static bending strength, so that the bearing capacity of the product is enhanced compared with the bamboo-based material without surface reinforcement; and compared with the traditional phenolic adhesive or epoxy resin adhesive, the product does not release free formaldehyde and organic solvents, is more green and environmentally friendly, and can be used for indoor structural materials.

[0021] The present application uses grafted modified polyethylene resin glue and aramid fiber cloth or carbon fiber reinforcement materials to make the bamboo-based products have good static bending strength and impregnation peeling performance, without delamination, cracking, debonding, or peeling between layers, and without defects such as bubbling, wrinkling, discoloration, and mildew on the surface; thereby, the performance of the product is improved compared with a substrate without surface reinforcement materials; compared with phenolic adhesives or epoxy resin adhesives, the use of formaldehyde-free film-like polyethylene resin as an adhesive makes the adhesive more balanced after hot melting, and the final product is formaldehyde-free. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the cross-sectional structure of the present invention. DETAILED DESCRIPTION In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] In conjunction with the accompanying drawings, some implementation structures of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0026] The fiber reinforced composite material plate of the present invention comprises an intermediate substrate layer 1 and a first graft modified polyethylene resin film layer 2, a fiber cloth layer 3, a second graft modified polyethylene resin film layer 4 and a surface single board layer 5 which are sequentially arranged on the upper and lower sides of the intermediate substrate layer.

[0027] The middle substrate layer can be a wood-based material or a bamboo-based material, and the moisture content of the middle substrate layer is 8-12%; the wood-based material can be a 9mm thick plywood, and the bamboo-based material can be a 28mm thick container bottom plate; plywood is a mature product in the market and can be purchased on the market with a variety of specifications, and the common width is 2440×1220, or 1830×915; the container bottom plate can also be purchased on the market; plywood and container bottom plates are used for bearing, and this application makes relevant examples, but is not limited to these two types, and other materials such as bamboo, wood-based materials, particleboard, and fiberboard can be used.

[0028] The fiber cloth layer is aramid fiber cloth or carbon fiber cloth. The specification of the aramid fiber cloth is 200D60G-3000D400G, and the specification of the carbon fiber cloth is 3k160g-3k300g.

[0029] The first graft modified polyethylene resin film layer and the second graft modified polyethylene resin film layer can adopt the formaldehyde-free film-like wood adhesive with patent number “201310443412.8” and invention name “A formaldehyde-free film-like wood adhesive and its preparation and use method”.

[0030] The thickness of the first graft-modified polyethylene resin film layer and the second graft-modified polyethylene resin film layer was 0.04 mm.

[0031] The surface veneer layer may be a 1.4 mm thick wood veneer.

[0032] Example 1 1. Raw material preparation 1.1 Bamboo-based materials: Use 28mm container bottom board with a specification of 60cm×60cm, and dry it to a moisture content of 8%; 1.2 Reinforcement material: Aramid fiber cloth, specification 3000D400G; 1.3 Adhesive material: grafted modified polyethylene resin film, single layer film thickness 0.04mm; 1.4 Surface wood veneer: 1.4mm thick wood veneer.

[0033] 2. Assembly The base material (bamboo-based material) is paved with aramid fiber cloth on the upper and lower sides, the outermost layer is wood veneer, and modified polyethylene resin film is used as adhesive between each unit.

[0034] 3. Press plate The method of hot pressing followed by cold pressing is adopted: hot pressing temperature is 160°C, hot pressing pressure is 1.0 MPa, hot pressing time is 420s; cold pressing pressure is 1.5 MPa, cold pressing time is 60s.

[0035] 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, the product aramid fiber reinforced bamboo-based composite material board is obtained.

[0036] Example 2 1. Raw material preparation 1.1 Wood-based material: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 10%; 1.2 Reinforcement material: Aramid fiber cloth, specification 1000D200G 1.3 Adhesive material: grafted modified polyethylene resin film, single layer film thickness 0.04mm; 1.4 Surface wood veneer: 1.4mm thick wood veneer.

[0037] 2. Assembly The substrate (wood-based material) is paved with aramid fiber cloth on the upper and lower sides, the outermost layer is wood veneer, and modified polyethylene resin film is used as adhesive between each unit.

[0038] 3. Press plate The method of hot pressing followed by cold pressing is adopted: hot pressing temperature is 150°C, hot pressing pressure is 0.8MPa, hot pressing time is 300s; cold pressing pressure is 1.2MPa, cold pressing time is 50s.

[0039] 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, the product aramid fiber reinforced wood-based composite material board is obtained.

[0040] Implementation Case 3 1. Raw material preparation 1.1 Wood-based material: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 10%; 1.2 Reinforcement material: Aramid fiber cloth, specification 1000D200G 1.3 Adhesive material: grafted modified polyethylene resin film, single layer film thickness 0.04mm; 1.4 Surface wood veneer: 1.4mm thick wood veneer.

[0041] 2. Assembly Aramid fiber cloth is laid on the upper and lower surfaces of the substrate (wood-based material), and the outermost layer is a wood veneer. Modified polyethylene resin film is used as an adhesive between each unit. (In this embodiment, the aramid fiber cloth and the modified polyethylene resin film are first assembled and hot-pressed to form an aramid fiber cloth with adhesive, and then assembled with the substrate and the surface wood veneer).

[0042] 3. Press plate The pressing process is carried out in two steps. First, the upper and lower surfaces of the aramid fiber cloth are covered with grafted modified polyethylene resin films, and then sent into a press at 180°C. The upper and lower surfaces of the pressing plate in the press are covered with polytetrafluoroethylene films to prevent adhesion with the grafted modified polyethylene resin films; the molten polyethylene penetrates into the interior of the aramid fiber cloth, and forms a permeated aramid fiber cloth after solidification; then, the permeated aramid fiber cloth is cultured with the wood-based material and the surface wood veneer and then pressed; the hot pressing followed by cold pressing is adopted: the hot pressing temperature is 150°C, the hot pressing pressure is 0.8MPa, and the hot pressing time is 300s; the cold pressing pressure is 1.2MPa, and the cold pressing time is 50s.

[0043] In this step, the upper and lower surfaces of the aramid fiber cloth are preliminarily covered with a grafted modified polyethylene resin film and hot-pressed to form an infiltrated aramid fiber cloth (sheet-shaped), and then hot-pressed for a second time, which is helpful to overcome the problem that the aramid fiber cloth is easily loose, and improve the static bending strength of the control example, embodiment 1, and embodiment 2.

[0044] 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, the product aramid fiber reinforced wood-based composite material board is obtained.

[0045] Comparison standard: Compared with the mechanical properties of the substrate without surface enhancement, the physical and mechanical properties of the product are listed in Table 1. Implementation cases 1, 2, and 3 are compared.

[0046]

[0047] Example 4 1. Raw material preparation 1.1 Wood-based material: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 10%; 1.2 Reinforcement material: Select carbon fiber cloth with specification of 3k300g; 1.3 Adhesive material: grafted modified polyethylene resin film, single layer film thickness 0.04mm; 1.4 Surface wood veneer: 1.4mm thick wood veneer.

[0048] 2. Assembly The plywood substrate is paved with carbon fiber cloth on the upper and lower sides, the outermost layer is wooden veneer, and modified polyethylene resin film is used as adhesive between each unit.

[0049] 3. Press plate One-time hot pressing method is adopted.

[0050] The one-time hot pressing process is as follows: hot pressing temperature 140°C, hot pressing pressure 0.8MPa, hot pressing time: 250s; 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, a carbon fiber reinforced wood-based composite material board is obtained.

[0051] Example 5 1. Raw material preparation 1.1 Wood-based material: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 10%; 1.2 Reinforcement material: Select 3k300g carbon fiber cloth; 1.3 Bonding material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm.

[0052] 1.4 Surface wood veneer: 1.4mm thick wood veneer.

[0053] 2. Assembly The plywood substrate is paved with carbon fiber cloth on the upper and lower sides, the outermost layer is wooden veneer, and modified polyethylene resin film is used as adhesive between each unit.

[0054] 3. Press plate The product of the present invention adopts the method of first hot pressing and then cold pressing.

[0055] The process is as follows: hot pressing temperature 160°C, hot pressing pressure 1.0MPa, hot pressing time: 330s; cold pressing pressure 1.5MPa, cold pressing time: 60s.

[0056] 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, a carbon fiber reinforced wood-based composite material board is obtained.

[0057] Implementation Case 6 1. Raw material preparation 1.1 Wood-based material: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 10%; 1.2 Reinforcement material: Select 3k300g carbon fiber cloth; 1.3 Bonding material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm.

[0058] 1. 4 Surface wood veneer: 1.4mm thick wood veneer.

[0059] 2. Assembly Carbon fiber cloth is laid on the upper and lower sides of the plywood substrate, the outermost layer is a wooden veneer, and graft-modified polyethylene resin film is used as an adhesive between each unit (in this embodiment, the carbon fiber and the graft-modified polyethylene resin film are first assembled and hot-pressed to form an infiltrated carbon fiber cloth, and then assembled with the substrate and the surface wooden veneer).

[0060] In this step, the upper and lower surfaces of the carbon fiber cloth are preliminarily covered with a grafted modified polyethylene resin film and hot-pressed to form an infiltrated carbon fiber cloth (sheet-shaped), and then hot-pressed for a second time, which helps to overcome the problem of the carbon fiber being easily loose, and improves the static bending strength of the control example, embodiment 4, and embodiment 5.

[0061] 3. Press plate The pressing process is carried out in two steps. First, the upper and lower surfaces of the carbon fiber cloth are covered with a grafted polyethylene resin film and sent to a press at 180°C. The upper and lower surfaces of the pressing plate in the press are covered with a polytetrafluoroethylene film to prevent adhesion with the grafted polyethylene resin film. The molten polyethylene penetrates into the carbon fiber cloth and forms a carbon fiber cloth after solidification. Then, the carbon fiber cloth with infiltrated glue is cultured with the wood-based material and the surface wood veneer and then pressed. The process is as follows: hot pressing temperature 160°C, hot pressing pressure 1.0MPa, hot pressing time: 330s; cold pressing pressure 1.5MPa, cold pressing time: 60s.

[0062] 4. Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours and then trimmed. After inspection, a carbon fiber reinforced wood-based composite material board is obtained.

[0063] Comparison standard: Compared with the mechanical properties of the substrate without surface enhancement, the physical and mechanical properties of the product are listed in Table 2. Implementation cases 4, 5, and 6 are compared.

[0064]

[0065] The above descriptions are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and changes.

Claims

1. A fiber reinforced composite material plate, characterized in that: It comprises an intermediate substrate layer, a first graft modified polyethylene resin film layer, a fiber cloth layer, a second graft modified polyethylene resin film layer and a surface single board layer which are sequentially arranged on the upper and lower sides of the intermediate substrate layer.

2. The fiber reinforced composite material plate according to claim 1, characterized in that: The intermediate substrate layer is a wood-based material or a bamboo-based material, and the moisture content of the intermediate substrate layer is 8-12%.

3. The fiber reinforced composite material plate according to claim 2, characterized in that: The wood-based material is a 9 mm thick plywood, and the bamboo-based material is a 28 mm thick container bottom plate.

4. The fiber reinforced composite material plate according to claim 1, characterized in that: The fiber cloth layer is aramid fiber cloth or carbon fiber cloth.

5. The fiber reinforced composite material plate according to claim 4, characterized in that: The specifications of the aramid fiber cloth are 200D60G-3000D400G.

6. The fiber reinforced composite material plate according to claim 4, characterized in that: The specification of the carbon fiber cloth is 3k160g-3k300g.

7. The fiber reinforced composite material plate according to claim 4, characterized in that: The thickness of the first graft modified polyethylene resin film layer and the second graft modified polyethylene resin film layer is 0.04 mm.

8. The fiber reinforced composite material plate according to claim 4, characterized in that: The surface veneer layer is a 1.4 mm thick wood veneer.

9. A process for manufacturing a fiber reinforced composite material plate, characterized in that: Step (1). Raw material preparation (1.1) Bamboo-based materials: Use 28mm container bottom board with a specification of 60cm×60cm, and dry it to a moisture content of 8%-12%; (1.2) Wood-based materials: Use 9mm plywood with a specification of 30cm×30cm, and dry it to a moisture content of 8%-12%; (1.3) Reinforcement material: Select aramid fiber cloth with specifications of 200D60G-3000D400G; (1.4) Adhesive material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm; (1.5) Surface wood veneer: 1.4mm thick wood veneer; Step (2): Assembly Aramid fiber cloth is laid on and below the bamboo-based material or wood-based material as the middle substrate layer, the outermost layer is the wood veneer, and a grafted modified polyethylene resin film is used as an adhesive between the middle substrate layer and the aramid fiber cloth, and between the aramid fiber cloth and the wood veneer; Step (3). Press plate Use one-time hot pressing or hot pressing followed by cold pressing: (3.1) The one-time hot pressing process is as follows: hot pressing temperature 140-160℃, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; (3.2) The process of hot pressing followed by cold pressing is as follows: hot pressing temperature 140-160°C, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; cold pressing pressure 1.0-2.0MPa, cold pressing time: 30s-300s; (4) Trimming and inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours before trimming, and the composite material board product is obtained after inspection.

10. A process for manufacturing a fiber reinforced composite material plate, characterized in that: Step (1). Raw material preparation (1.1) Wood-based materials: 9mm plywood with a specification of 30cm×30cm, dried to a moisture content of 8%-12%; (1.2) Reinforcement material: Select carbon fiber cloth with specifications of 3k160g-3k300g; (1.3) Adhesive material: Graft-modified polyethylene resin film, single-layer film thickness 0.04 mm; (1.4) Wood veneer: 1.4mm thick wood veneer; Step (2): Assembly Carbon fiber cloth is laid on and below the bamboo-based material or wood-based material as the middle substrate layer, the outermost layer is a wooden veneer, and a grafted modified polyethylene resin film is used as an adhesive between the middle substrate layer and the carbon fiber cloth, and between the carbon fiber cloth and the wooden veneer; Step (3). Press plate Use one-time hot pressing method, or hot pressing followed by cold pressing method: (3.1) The one-time hot pressing process is as follows: hot pressing temperature 140-160℃, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; (3.2) The process of hot pressing followed by cold pressing is as follows: hot pressing temperature 140-160°C, hot pressing pressure 0.8-1.2MPa, hot pressing time: 250-420s; cold pressing pressure 1.0-2.0MPa, cold pressing time: 30s-300s; Step (4): Trimming and Inspection After the pressing is completed, the formed board is placed in a constant temperature and humidity environment for 48 hours before trimming. After inspection, a carbon fiber reinforced wood-based composite material product is obtained.

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