Aerogel-fiber reinforced plastic-metal high-performance composite laminated board and a preparation method thereof

Abstract

The present application relates to a kind of aerogel-FRP-metal high-performance composite laminated board and its preparation method, the combination component includes: aerogel blanket layer, FRP layer and metal plate layer.Wherein, FRP layer can be woven or stacked by different angle fiber lay-up composition.The aerogel-FRP-metal high-performance composite laminated board can be made by vacuum infusion process and mould pressing process etc..Since aerogel blanket layer has low density and excellent thermal insulation performance, it can effectively reduce heat conduction and heat radiation, provide good thermal insulation protection;FRP layer has high strength, fatigue resistance and corrosion resistance, and different fiber direction lay-up can be set according to actual engineering demand to increase the mechanical properties and durability of component, compared with prior art, the present application combines aerogel blanket layer, FRP layer and metal plate layer, the combination structure gives full play to the advantages of each layer material, realizes the comprehensive performance of light weight, high strength, high temperature resistance, fatigue resistance, corrosion resistance, can satisfy the engineering application demand of multiple fields.

Description

Technical Field

[0001] This invention relates to the fields of composite materials, thermal insulation materials and structural engineering technology, and in particular to a high-performance aerogel-FRP (fiber-reinforced polymer)-metal composite laminate and its preparation method. Background Technology

[0002] In fields such as construction and aerospace, the application of thermal insulation materials is crucial for protecting structural stability. Traditional thermal insulation materials, such as mineral wool, suffer from high density, which limits their application in engineering projects requiring lightweight and high performance.

[0003] In existing technologies, aerogel materials have attracted much attention due to their low density, excellent thermal insulation properties, and lightweight characteristics. Aerogel is a porous material with extremely low thermal conductivity and a high surface area. Aerogel felt can effectively reduce heat conduction and heat radiation, providing excellent thermal insulation protection, but its relatively low strength and toughness limit its widespread application. To improve the toughness and strength of aerogel materials, various reinforcing materials (such as metals / oxides, nonwoven fabrics, and films) are combined with aerogel materials to prepare aerogel composite materials with unique properties. Metallic materials, as traditional structural materials, have high strength and stability, but due to their high thermal conductivity, they often suffer from poor fire resistance. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide an aerogel-FRP-metal high-performance composite laminate and its preparation method, which can realize a lightweight, high-strength, high-temperature resistant, fatigue-resistant and corrosion-resistant composite material.

[0005] The objective of this invention can be achieved through the following technical solution: an aerogel-FRP-metal high-performance composite laminate, comprising an aerogel felt layer and a metal plate layer, wherein an FRP layer is bonded between the aerogel felt layer and the metal plate layer.

[0006] Furthermore, the FRP layer is formed by weaving multiple fiber layups at different angles.

[0007] Furthermore, the FRP layer is formed by stacking multiple fiber layups at different angles.

[0008] Furthermore, the FRP layer comprises a first angled fiber layup, a second angled fiber layup, and a third angled fiber layup stacked sequentially.

[0009] Furthermore, the metal plate layer is specifically made of metal materials, such as aluminum alloy or steel.

[0010] Furthermore, the aerogel felt layer and the FRP layer are stacked alternately in sequence.

[0011] A method for preparing a high-performance aerogel-FRP-metal composite laminate is disclosed, which employs a vacuum infusion process and combines it with a specially designed mold to prepare the high-performance aerogel-FRP-metal composite laminate.

[0012] Furthermore, the specific process of the vacuum infusion process for preparation is as follows:

[0013] A high-performance aerogel-FRP-metal composite laminate is prepared by sequentially stacking a release cloth, a metal plate layer, an FRP layer, an aerogel felt layer, and the release cloth on a mold, and then preparing the laminate through vacuum infusion, resin impregnation, and bubble removal.

[0014] A method for preparing a high-performance aerogel-FRP-metal composite laminate is disclosed, which employs a molding process and combines a punch and a die to prepare the high-performance aerogel-FRP-metal composite laminate.

[0015] Furthermore, the specific process of the molding process is as follows:

[0016] Metal plates, FRP and aerogel felt are stacked and pre-pressed before being placed into a concave mold. Then, high-performance aerogel-FRP-metal composite laminates are prepared by filling resin, heating, applying pressure with a convex mold, and curing.

[0017] Compared with the prior art, the present invention has the following advantages:

[0018] This invention involves bonding an FRP layer between an aerogel felt layer and a metal plate layer. Utilizing the excellent corrosion resistance and fatigue resistance of FRP, the performance of the metal structure can be maintained for extended periods under harsh environmental conditions, extending the service life of the components. Furthermore, the low density of the aerogel felt, combined with FRP and the metal plate, ensures that the overall component maintains a low weight, which helps reduce the load and weight of the structure. This results in a lightweight, high-strength, high-temperature resistant, fatigue-resistant, and corrosion-resistant aerogel-FRP-metal composite laminate that can meet the needs of various fields for thermal insulation, strength, and lightweighting, providing reliable thermal insulation protection and structural support.

[0019] In this invention, the FRP layer can be formed by weaving or stacking fibers at various angles according to actual engineering needs, thereby providing additional strength and stiffness to the metal components.

[0020] This invention can prepare aerogel-FRP-metal composite laminates using vacuum infusion or molding processes. The preparation process can be completed simply, efficiently, and reliably by designing the corresponding molds. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the layers of an aerogel-FRP-metal high-performance composite laminate.

[0022] Figure 2 This is a schematic diagram of the overall aerogel-FRP-metal high-performance composite laminate.

[0023] Figure 3 Schematic diagram of fiber layup stacking at different angles;

[0024] Figure 4 A schematic diagram of the vacuum infusion process for aerogel-FRP-metal high-performance composite laminate.

[0025] Figure 5 A schematic diagram of the molding process for aerogel-FRP-metal high-performance composite laminate.

[0026] The markings in the diagram are as follows: 1. Aerogel felt layer; 2. First angle fiber layup; 3. Second angle fiber layup; 4. Third angle fiber layup; 5. Metal plate layer; 6. FRP layer; 7. Mold; 8. Bottom release cloth; 9. Top release cloth; 10. Flow guide cloth; 11. Flow guide tube; 12. Sealing strip; 13. Vacuum bag; 14. Glue inlet tube; 15. Resin; 16. Vacuum machine; 17. Evacuation pipe; 18. Resin collector; 19. Cavity mold; 20. Punch mold; 21. Exhaust channel. Detailed Implementation

[0027] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0028] Example

[0029] like Figures 1-3 As shown, an aerogel-FRP-metal high-performance composite laminate includes an aerogel felt layer 1 and a metal plate layer 5, with an FRP layer 6 bonded between the aerogel felt layer 1 and the metal plate layer 5. The metal plate layer 5 is a flat plate, which can be rectangular or irregularly shaped, and can be made of aluminum alloy, steel, or other metal materials with appropriate strength and rigidity.

[0030] The aerogel felt layer 1 has an appropriate thickness and density to achieve the required thermal insulation performance. The aerogel felt layer 1 has anti-corrosion and durability properties, which can extend the service life of the component.

[0031] The FRP layer 6 has excellent corrosion resistance and fatigue resistance, which can ensure the performance of the metal structure for a long time under harsh environmental conditions and extend the service life of the components.

[0032] In practical applications, a scheme in which multiple layers of aerogel felt and FRP layers are stacked alternately can also be adopted.

[0033] Furthermore, depending on the actual engineering requirements, the FRP layer 6 can be formed by weaving or stacking multiple fiber layups at different angles. This embodiment adopts a stacking scheme, specifically, the FRP layer 6 is formed by sequentially stacking the first angle fiber layup 2, the second angle fiber layup 3, and the third angle fiber layup 4, wherein the laying direction angle of the first angle fiber layup 2 is 0°, the laying direction angle of the second angle fiber layup 3 is 45°, and the laying direction angle of the third angle fiber layup 4 is 90°.

[0034] This embodiment also provides a method for preparing the above-mentioned aerogel-FRP-metal high-performance composite laminate, which can employ a vacuum infusion process or a molding process. If a vacuum infusion process is used, a release cloth, a metal plate layer, an FRP layer, an aerogel felt layer, and a release cloth are sequentially stacked on a set mold. Through vacuum infusion, resin impregnation, and air bubble removal, a high-performance aerogel-FRP-metal composite laminate is finally formed after curing. Specifically, as shown... Figure 4 As shown, first, mold 7 is prepared, and a bottom release cloth 8 is placed on the mold. Then, the metal plate layer 5, FRP layer 6, and aerogel felt layer 1 are sequentially formed into a preform and laid onto mold 8. A top release cloth 9 is laid on top of the preform. A guide cloth 10 and a guide pipe 11 are laid, followed by the application of sealing strip 12. A vacuum bag 13 is then laid. After checking the airtightness, a resin inlet tube 14 is installed to draw resin 15 into the vacuum bag 13. Finally, excess resin is introduced into a resin collector 18 through a vacuum pump 17. Curing and product demolding are then performed to form a high-performance aerogel-FRP-metal composite laminate.

[0035] If a molding process is used, a metal plate, FRP, and aerogel felt are installed in a corresponding mold. Through resin filling, heating, pressure application, and curing, a high-performance aerogel-FRP-metal composite laminate is finally formed. Specifically, for example... Figure 5 As shown, prepare a concave mold 19 and a convex mold 20, clean molds 19 and 20 to keep them clean and smooth, and then preheat and heat-treat the molds; apply a certain amount of release agent to the groove of the mold; stack the metal plate layer 5, FRP layer 6, and aerogel felt 1 layer by layer, and pre-press the stacked materials to form a dense entity with a regular shape and a certain mass. Place the whole into molds 19 and 20 and impregnate it with resin, apply a certain pressure, and vent through the venting channel 21; set a constant temperature and time to allow it to cure; finally, demold to form a high-performance aerogel-FRP-metal composite laminate.

[0036] In summary, this solution takes into account the extremely low thermal conductivity and high surface area of ​​the aerogel felt layer, which effectively reduces heat conduction and radiation, providing excellent thermal insulation protection. Compared with traditional insulation materials, this component can significantly reduce heat transfer, improve insulation effect, and reduce energy consumption. The low density of the aerogel felt, combined with FRP and metal sheets, allows the overall component to maintain a low weight, which helps reduce the load and weight of the structure. Furthermore, setting FRP layups in different directions according to actual engineering projects provides additional strength and stiffness to the metal components. FRP has good corrosion resistance and fatigue resistance, ensuring the performance of the metal structure for a long time under harsh environmental conditions, extending the service life of the components. This aerogel-FRP-metal high-performance composite laminate is suitable for multiple fields, such as building insulation and aerospace insulation, meeting the needs of different fields for thermal insulation performance, strength, and lightweighting, providing reliable thermal insulation protection and structural support.

Claims

1. A high-performance aerogel-FRP-metal composite laminate, characterized in that, It includes an aerogel felt layer (1) and a metal plate layer (5), wherein an FRP layer (6) is bonded between the aerogel felt layer (1) and the metal plate layer (5). The FRP layer (6) is formed by weaving multiple fiber layups at different angles or by stacking multiple fiber layups at different angles. When the FRP layer (6) is formed by stacking multiple fiber layups at different angles, the FRP layer (6) includes a first angle fiber layup (2), a second angle fiber layup (3) and a third angle fiber layup (4) stacked sequentially. The aerogel felt layer (1) and the FRP layer (6) are stacked alternately in sequence.

2. A method for preparing the aerogel-FRP-metal high-performance composite laminate as described in claim 1, characterized in that, A high-performance aerogel-FRP-metal composite laminate was prepared using a vacuum infusion process combined with a specially designed mold.

3. The method for preparing aerogel-FRP-metal high-performance composite laminate according to claim 2, characterized in that, The specific process of the preparation method using vacuum infusion technology is as follows: A high-performance aerogel-FRP-metal composite laminate is prepared by sequentially stacking a release cloth, a metal plate layer, an FRP layer, an aerogel felt layer, and the release cloth on a mold, and then preparing the laminate through vacuum infusion, resin impregnation, and bubble removal.

4. A method for preparing the aerogel-FRP-metal high-performance composite laminate as described in claim 1, characterized in that, A high-performance aerogel-FRP-metal composite laminate was prepared by using a molding process, combining a punch and a die.

5. The method for preparing aerogel-FRP-metal high-performance composite laminate according to claim 4, characterized in that, The specific process of the preparation method using molding technology is as follows: Metal plates, FRP and aerogel felt are stacked and pre-pressed before being placed into a concave mold. Then, high-performance aerogel-FRP-metal composite laminates are prepared by filling resin, heating, applying pressure with a convex mold, and curing.

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