Aerogel thermal insulation composite board

Abstract

The utility model relates to the technical field of building thermal insulation materials, and discloses an aerogel thermal insulation composite board, which comprises a core material and a coating layer, the core material comprises a plurality of layers of aerogel felts, the plurality of layers of aerogel felts are castellated into required thickness, a plurality of tie fibers are sewn in the thickness direction of the core material in a penetrating manner, the plurality of tie fibers are mutually independent and are arranged in parallel, and the coating layer is arranged on the core material. The wrapping layer comprises a first reinforcing plate and a wrapping edge, the first reinforcing plate is fixed to the outer side of the core material, the wrapping edge is fixedly arranged on the periphery of the core material, and the edge of the wrapping edge is fixedly connected with the first reinforcing plate. Through the arrangement of the wrapping edge and the first reinforcing plate, the core material formed by the aerogel felt is located on the inner side of the box-packed structure formed by combining the wrapping edge and the first reinforcing plate, only the inner side of the aerogel felt is an open face, the open face is attached to a building face after installation is completed, and the situation that dust falling from the aerogel felt falls into a building, and the sanitary environment in the building is affected is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building insulation materials technology, specifically to aerogel insulation composite panels. Background Technology

[0002] Aerogel is a novel nanoporous material with extremely low density, extremely low thermal conductivity, high specific surface area, high porosity, high fire resistance, and Class A non-combustible properties. It exhibits excellent performance in thermal, optical, electrical, mechanical, and acoustic fields, and has already seen mature applications in petrochemical, military, and aerospace industries. Aerogel composite insulation products are nanoscale porous composites formed by combining reinforcing materials with a sol using the sol-gel method, followed by drying to allow gas to replace the liquid phase in the gel. Also known as aerogel felt, as a novel high-performance thermal insulation material, aerogel has significant application potential in creating low-carbon, ultra-low-energy buildings, reducing building energy consumption and carbon emissions, and improving building energy efficiency. Accelerating the application of aerogel products in the construction field is of great significance for the green, low-carbon, and high-quality development of the construction industry. However, when aerogel felt is used in the construction field, due to limitations in the production process, the thickness of aerogel felt is generally less than 25mm. At the same time, the adhesion between aerogel particles and reinforcing materials is relatively weak. Therefore, when the thickness of the designed thermal insulation layer exceeds 25mm, it is necessary to use a combination of multiple aerogel felts. For example, when the designed thickness is 35mm, it is necessary to use 25mm aerogel felt and 10mm aerogel felt stacked together. In addition, the aerogel particles attached to the aerogel felt are prone to detaching from the attached reinforcing materials, resulting in dust shedding. This not only affects the cleanliness of the building, but also affects the bonding strength between the aerogel felt and the building, which greatly reduces the competitiveness of aerogel felt as a thermal insulation material. Utility Model Content

[0003] The present invention aims to provide an aerogel insulation composite board to increase the thickness of aerogel felt and reduce the problem of dust shedding from aerogel felt, thereby enhancing the competitiveness of aerogel felt as a building insulation material.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an aerogel thermal insulation composite board, comprising a core material and a covering layer. The core material comprises several layers of aerogel felt, which are stacked to the required thickness. Several tie fibers are interlaced and sewn along the thickness direction of the core material. The tie fibers are independent of each other and arranged regularly. The covering layer comprises a first reinforcing plate and an edging. The first reinforcing plate is fixed on the outside of the core material, and the edging is fixedly disposed around the core material. The edge of the edging is fixedly connected to the first reinforcing plate.

[0005] The beneficial effects of this solution are as follows: 1. By setting the edging and the first reinforcing plate, the core material formed by the aerogel felt is located inside the box structure of the edging and the first reinforcing plate combination, so that only the inner side of the aerogel felt is open. After installation, the open surface is in contact with the building surface, which prevents the dust falling from the aerogel felt from falling into the building and affecting the sanitary environment inside the building.

[0006] Furthermore, the covering layer also includes a second reinforcing plate, which is fixed inside the core material and its edges are fixedly connected to the edging.

[0007] Beneficial effects: By setting the second reinforcing plate, the composite board is covered with board material on all four sides, which prevents the aerogel from falling off during transportation and affecting the thermal insulation effect of the composite board. At the same time, it can also prevent the dust generated by the aerogel from falling off from entering the atmosphere and causing environmental problems.

[0008] Furthermore, the edging, the first reinforcing plate, and the second reinforcing plate are all bonded to the core material. During bonding, a pressure of more than 50 kPa is applied to the first reinforcing plate and the second reinforcing plate, and the pressure application time is greater than or equal to 0.5 h.

[0009] Beneficial effects: By applying pressure to the first and second reinforcing plates during the bonding process and maintaining it for a certain period of time, the air between the aerogel felt layers is squeezed out, making the core material more uniform and thus increasing the mechanical strength and stability of the overall structure. At the same time, it also improves the adhesion between the aerogel core material and the covering layer, reduces the probability of the covering layer detaching, and avoids the residual space between the aerogel felt layers absorbing moisture from the environment, which could lead to a decrease in thermal insulation performance or even damage to the material.

[0010] Furthermore, the core material is provided with slit holes, which are located between adjacent tie fibers. The covering layer also includes connecting components, which pass through the slit holes to fix the first reinforcing plate and the second reinforcing plate to both sides of the core material.

[0011] Beneficial effects: The piercing design facilitates the connection of components through the core material to form a stable connection, reducing waste.

[0012] Furthermore, the connecting assembly includes a first connector and a second connector. One end of the first connector is fixedly connected to the first reinforcing plate, and one end of the second connector is fixedly connected to the second reinforcing plate. The first connector and the second connector are connected by press riveting.

[0013] Beneficial effects: The connecting assembly is divided into a first connector and a second connector. The first connector and the second connector are fixed to the first reinforcing plate and the second reinforcing plate, respectively. The first connector and the second connector are designed to be connected by a riveting process. By using the pressure of the bonding process, the first connector and the second connector can be riveted together, thereby improving the bonding strength between the first reinforcing plate and the core material without increasing the number of process steps.

[0014] Furthermore, the interlacing spacing of the tie fibers is 10-50mm, and the spacing between adjacent tie fibers is 10-50mm.

[0015] Furthermore, the material of the coating layer is one of fiber cement board, calcium silicate board, or precast cement board.

[0016] Furthermore, the binding fiber is a fiber thread woven from basalt fiber or rock wool fiber.

[0017] Furthermore, the fiber filament diameter is 1-2 mm, and the monofilament diameter of basalt fiber or rock wool fiber is 3-23 μm.

[0018] Based on the above technical features, this application also has the following technical effects: 1. By reasonably setting the interlacing spacing and adjacent spacing of the tie fibers, the tensile strength of the core material meets the requirements of building materials; 2. By selecting tie fiber materials, the influence of tie fibers on the performance of composite boards is reduced; 3. By selecting coating layer materials, the flame retardant performance of composite materials is improved. Attached Figure Description

[0019] Figure 1 This is an exploded view of an embodiment of the present utility model;

[0020] Figure 2 This is a schematic diagram of Embodiment 1 of the present utility model;

[0021] Figure 3 This is a cross-sectional view of the core material in the thickness direction of Embodiment 1 of this utility model;

[0022] Figure 4 This is a schematic diagram of Embodiment 2 of the present invention. Detailed Implementation

[0023] The following detailed description illustrates the specific implementation method:

[0024] The reference numerals in the accompanying drawings include: first reinforcing plate 11, first connector 111, second reinforcing plate 12, second connector 121, core material 13, aerogel felt 131, puncture hole 133, tie fiber 132, first suture 1321, and second suture 1322.

[0025] Example 1

[0026] Example 1 is basically as shown in the appendix. Figure 1-3 As shown, Figure 1-3 The aerogel insulation composite panel shown includes a core material 13 and a covering layer, such as Figure 1 , Figure 3 As shown, the core material 13 includes tie fibers 132 and several layers of aerogel felt 131. The tie fibers 132 include a first suture 1321 and a second suture 1322. Both the first suture 1321 and the second suture 1322 are woven from basalt fibers or rock wool fibers with a monofilament diameter of 3-23 μm into threads with a diameter of 1-2 mm. Several layers of aerogel felt 131 are stacked to the designed thickness, and then the first suture 1321 and the second suture 1322 are interlaced and sewn together. After sewing, the multiple tie fibers 132 are independent and parallel to each other, forming sutures with equal spacing. The interlacing and sewing method in this embodiment can be referred to Figure 3 The first suture 1321 is inserted through the core material 13, and the second suture 1322 is tied together. That is, the first suture 1321 is inserted from one side of the core material 13 to the other side and then back through, forming a U-shaped structure in the same suture hole. The second suture 1322 passes through the U-shaped structure to form a tie, thereby avoiding the problem of unraveling of the first suture 1321 and the second suture 1322. In this embodiment, the insertion spacing of adjacent U-shaped structures is 10-25mm, and the suture spacing is 25mm. When the insertion spacing is 10mm and the suture spacing is 25mm, the tensile bonding strength of the core material 13 is 350Kpa. When the insertion spacing is 25mm and the suture spacing is 25mm, the tensile bonding strength of the core material 13 is 180Kpa.

[0027] The covering layer includes a first reinforcing plate 11, a second reinforcing plate 12, and an edge banding, such as Figure 2 As shown, the first reinforcing plate 11 and the second reinforcing plate 12 are respectively bonded to both sides of the core material 13, and the edging is bonded to the perimeter of the core material 13, ensuring that the edge of the edging is bonded to the side of the first reinforcing plate 11 and the second reinforcing plate 12.

[0028] The specific implementation process is as follows:

[0029] First, prepare the materials: prepare the binding fiber 132 and aerogel felt 131, and stack the aerogel felt 131 to the designed thickness. In this scheme, the designed thickness of the aerogel felt 131 is 30mm. Select 10 aerogel felt 131 with a thickness of 3mm and stack them together.

[0030] Subsequently, stitching: the aerogel felt 131 of the battens are stitched together using tie fibers 132 to form the core material 13;

[0031] Next, apply adhesive: apply adhesive to both sides of the core material 13;

[0032] Finally, molding: the first reinforcing plate 11 and the second reinforcing plate 12 are covered on both sides of the core material 13, and a pressure of more than 50 kPa is applied for more than 0.5 hours. In this embodiment, the applied pressure is 200 kPa and the pressing time is 5 hours. During the pressing, the edge is simultaneously pasted around the core material 13 to ensure that the edge of the edge is in contact with the edge of the first reinforcing plate 11 or the second reinforcing plate 12. At the same time, the air between the multiple layers of aerogel felt 131 is squeezed out so that the molded composite board remains uniform.

[0033] Example 2

[0034] Example 2 is basically the same as Example 1, except that it also includes a connecting component, such as... Figure 4 As shown, the connecting assembly includes a first connector 111 and a second connector 121. The first connector 111 and the second connector 121 can be riveted together by a press riveting process. The first connector 111 is bonded to the back of the first reinforcing plate 11, and the second connector 121 is bonded to the back of the second reinforcing plate 12.

[0035] The core material 13 is provided with a plurality of slit holes 133. The slit holes 133 are provided by a stamping process and are alternated with the sewing process. The slit holes 133 are provided between adjacent tie fibers 132 and are adapted to the spacing of the connecting components, so as to facilitate the entry of the first connector 111 and the second connector 121 into the interior of the core material 13. Under the pressure of the forming process, the first connector 111 and the second connector 121 are riveted together.

[0036] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that the technical means used to solve problems in the above embodiments of this utility model can be combined to solve multiple technical problems simultaneously. For those skilled in the art, several modifications and improvements can be made without departing from the technical solution of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An aerogel thermal insulation composite board, characterized in that: It includes a core material and a covering layer. The core material includes several layers of aerogel felt, which are stacked to the required thickness. Several tie fibers are interlaced and sewn along the thickness direction of the core material. The tie fibers are independent of each other and arranged regularly. The covering layer includes a first reinforcing plate and an edge banding. The first reinforcing plate is fixed on the outside of the core material, and the edge banding is fixedly set around the core material. The edge of the edge banding is fixedly connected to the first reinforcing plate.

2. The aerogel thermal insulation composite board according to claim 1, characterized in that: The cladding layer also includes a second reinforcing plate, which is fixed inside the core material and its edges are fixedly connected to the edging.

3. The aerogel thermal insulation composite board according to claim 2, characterized in that: The edging, the first reinforcing plate, and the second reinforcing plate are all bonded to the core material. During bonding, a pressure of more than 50 kPa is applied to the first reinforcing plate and the second reinforcing plate, and the pressure application time is greater than or equal to 0.5 h.

4. The aerogel thermal insulation composite board according to claim 2, characterized in that: The core material is provided with slit holes, which are located between adjacent tie fibers. The covering layer also includes connecting components, which pass through the slit holes to fix the first reinforcing plate and the second reinforcing plate to both sides of the core material.

5. The aerogel thermal insulation composite board according to claim 4, characterized in that: The connecting assembly includes a first connector and a second connector. One end of the first connector is fixedly connected to the first reinforcing plate, and one end of the second connector is fixedly connected to the second reinforcing plate. The first connector and the second connector are connected by press-fitting.

6. The aerogel thermal insulation composite board according to claim 1, characterized in that: The spacing between the interlacing fibers is 10-50mm, and the spacing between adjacent interlacing fibers is 10-50mm.

7. The aerogel thermal insulation composite board according to claim 1, characterized in that: The cladding layer is made of fiber cement board, calcium silicate board, or precast cement board.

8. The aerogel thermal insulation composite board according to claim 1, characterized in that: The binding fiber is a fiber thread woven from basalt fiber or rock wool fiber.

9. The aerogel thermal insulation composite board according to claim 1, characterized in that: The diameter of the fiber filaments is 1-2 mm, and the diameter of the monofilaments of basalt fiber or rock wool fiber is 3-23 μm.

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