Aerogel composite board
By filling the solid wood substrate with aerogel and foam layers to form aerogel composite board, the problem of large weight and non-fireproofness of solid wood boards is solved, and lightweight and efficient sound insulation, thermal insulation and fire resistance are achieved, which reduces construction carbon emissions and extends service life.
Patent Information
- Application Number
- CN202422059255.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-23
AI Technical Summary
Existing solid wood boards have problems such as heavy weight, fireproof and expensive. Aerogel composite boards are difficult to provide sufficient structural strength, sound insulation and thermal insulation performance, and there are sound bridges and thermal bridges.
Aerogel filler and aerogel foam layer are combined with a solid wood substrate. By setting a aerogel filler on the substrate and covering the foam layer, the porous structure and low-density characteristics of the aerogel are used to fix it with the cover plate to form a sound-insulated and heat-insulated composite board.
It achieves lightweight and efficient sound insulation and heat insulation performance, has good fire resistance, is easy to construct, reduces carbon emissions, extends service life, and improves the resistance to elastic deformation and noise reduction ratio.
Smart Images
Figure CN223116000U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of construction, and particularly relates to an aerogel composite board. Background Art
[0002] In the building materials industry, a large amount of wood or composite boards are required for residential doors and multi-functional cabinets. Among them, solid wood boards are popular in the market due to their good texture, sound insulation, and heat insulation effects. Although composite boards are inexpensive, they have problems such as a large amount of VOC emissions and average sound insulation and heat insulation effects. However, solid wood boards also have the defects of heavy weight, non-fireproof, and relatively high prices, and their use costs are difficult to bear by most consumers.
[0003] Aerogel is a solid material with a porous structure, having an extremely low density and a highly porous nature. This microporous structure makes it an excellent sound barrier material. Its highly open pore structure can effectively absorb and damp the propagation of sound waves, thereby reducing the sound propagation speed and energy transfer. The low density characteristic of aerogel enables it to provide good sound insulation effects without adding too much weight, which is very important for sound barrier materials. In addition, due to the good high-temperature resistance of aerogel, it can maintain stable sound barrier performance in high-temperature environments, which is very valuable in some special application scenarios.
[0004] Aerogel materials are relatively brittle and are usually made into aerogel powder or aerogel composite felts for use. Currently, most aerogel composite boards use aerogel powder as a filling material, which is difficult to provide the structural strength required for composite boards. The boards made are prone to deformation when pressed. If local filling is used, "sound bridges" and "thermal bridges" will be formed at the parts not filled with aerogel, thereby reducing the sound insulation and heat insulation performance of the boards. Summary of the Utility Model
[0005] The utility model provides an aerogel composite board to solve the deficiencies described in the above background art.
[0006] The technical solution adopted by the utility model is as follows:
[0007] An aerogel composite plate includes a substrate, an aerogel filler, a foam layer and a cover plate. The substrate is provided with an aerogel filling position, each aerogel filling position is filled with an aerogel filler, and the substrate is provided with a foam layer in the opening direction of the aerogel filling position, and the foam layer at least covers the position of the substrate that is not filled with the aerogel filler; the cover plate is arranged on the outside of the foam layer and is fixedly connected to the substrate. The shapes of the aerogel filling positions can be the same or different, and are designed according to needs. The aerogel filler is filled into the aerogel filling position, and when an aerogel sheet or an aerogel block is used, the shape of the aerogel filling position needs to be the same. The aerogel filler is at least one of aerogel powder, aerogel sheet, aerogel particles, and aerogel blocks, that is, these materials can be used alone to fill the aerogel filling position, or at least two of them can be combined to fill the aerogel filling position, as long as the aerogel filling position can be filled well.
[0008] As a preferred solution of the utility model, the aerogel filling position is a through hole, each aerogel filling position has two opening directions, and at least one opening direction is provided with a foam layer. That is to say, the foam layer can be laid on only one end face of the substrate, or on both end faces, but a cover plate must be installed in each opening direction, and the function of the cover plate is mainly to limit the aerogel filler and the foam layer so that they do not leave the substrate.
[0009] As a preferred solution of the utility model, the aerogel filling position is a filling slot, and each aerogel filling position has only one opening direction. For a filling slot with only one opening direction, it is sufficient to lay a foam layer on one side, and then fix the foam layer and the aerogel filler on the substrate with a cover plate.
[0010] As a preferred solution of the utility model, the foam layer is an aerogel foam layer. Aerogel foam has a large open porosity and a strong noise reduction effect.
[0011] As a preferred solution of the utility model, the foam layer is provided with a clearance hole at a position corresponding to the aerogel filling position. The setting of the clearance hole can save the usage of the foam layer, and the sound insulation can be achieved by relying on the aerogel filler, and the foam layer is used for sound insulation in other places where the aerogel filler is not set.
[0012] As a preferred solution of the utility model, the foam layer covers the aerogel block and the part of the substrate not filled with aerogel filler. The foam layer completely covers the substrate and forms a double-layer sound insulation structure where the aerogel filler overlaps, further enhancing the sound insulation effect.
[0013] As a preferred embodiment of the present utility model, the foam layer is a melamine aerogel foam layer, a silica aerogel foam layer, a CR aerogel foam layer, an EVA aerogel foam layer, a PU aerogel foam layer or an SBR aerogel foam layer.
[0014] As a preferred embodiment of the present utility model, the cover plate is snap-connected to the substrate.
[0015] As a preferred embodiment of the present utility model, a cover plate snap-fitting position is provided on the substrate, and the cover plate is fixed to the substrate through the cover plate snap-fitting position.
[0016] As a preferred embodiment of the present utility model, the aerogel block is a ceramic fiber aerogel block, a high silica fiber aerogel block, a mullite fiber aerogel block, a zirconia fiber aerogel block or a polyacrylonitrile fiber aerogel block.
[0017] The present utility model prepares an aerogel composite board by using an aerogel filler and an aerogel foam with a solid wood board, which can be applied to the field of indoor construction and has the following advantages:
[0018] 1) The bulk density of the aerogel filler is usually between 90 and 110 kg / m³, which is much lower than that of traditional sound insulation materials. By opening a cavity on the solid wood substrate and filling the aerogel filler, while utilizing the sound insulation performance of the aerogel material, the mechanical strength of the overall composite board is also retained.
[0019] 2) It has good fire resistance and sound insulation performance and can still remain stable at high temperatures.
[0020] 3) The construction is simple, the construction period is short, and the construction efficiency is improved. This convenience has made it widely popularized in modern architecture and modular architecture.
[0021] 4) The carbon emission during the production process is low, and the carbon emission can be reduced by more than 40% compared with other thermal insulation materials such as rock wool.
[0022] 5) It has low water absorption, good durability, a long service life, and further reduces the maintenance cost.
[0023] 6) It has an extremely low thermal conductivity, and its heat insulation effect is dozens of times that of traditional thermal insulation materials. It can effectively reduce the production heat energy loss of industrial enterprises and still maintain a good heat insulation effect in low-temperature and low-humidity environments.
[0024] 7) When the aerogel filler is used as a panel or an interlayer, it can significantly improve the anti-elastic deformation ability and noise reduction ratio of the composite board.
[0025] 8) The application of the aerogel composite board helps to reduce the global energy consumption and greenhouse gas emissions, especially when it is widely used in homes and buildings. Description of the Drawings
[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0027] Figure 1 Schematic diagram of a substrate structure with a through-round-hole aerogel filling position, where Figure 1 a is a substrate provided with two long strip-shaped card slots, Figure 1 b is a substrate provided with long strip-shaped card slots around the perimeter, Figure 1 c is a substrate provided with two card slots with corners.
[0028] Figure 2 Schematic diagram of a substrate structure with a through-rhombus-hole aerogel filling position, where Figure 2 a is a substrate provided with two long strip-shaped card slots, Figure 2 b is a substrate provided with long strip-shaped card slots around the perimeter, Figure 2 c is a substrate provided with two card slots with corners.
[0029] Figure 3 Schematic diagram of a substrate structure with a through-prism-hole aerogel filling position, where Figure 3 a is a substrate provided with two long strip-shaped card slots, Figure 3 b is a substrate provided with long strip-shaped card slots around the perimeter, Figure 3 c is a substrate provided with two card slots with corners.
[0030] Figure 4 Schematic diagram of a substrate structure with aerogel filling positions of different shapes, where Figure 4 a is a substrate provided with two long strip-shaped card slots, Figure 4 b is a substrate provided with long strip-shaped card slots around the perimeter, Figure 4 c is a substrate provided with two card slots with corners.
[0031] Figure 5 Cross-sectional view of Embodiment 1. Detailed implementation manners
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.
[0033] Embodiment 1:
[0034] An aerogel composite board includes a substrate 1, an aerogel filler, a foam layer 3 and a cover plate 4. The substrate is a solid wood board. The substrate 1 is provided with an aerogel filling position 1-1. The aerogel filling positions provided on the substrate can be all through, all blocked, or both through and blocked, all of which can be processed according to actual needs. The shape of the aerogel filling position can also be unlimited, and can be the same shape or a combination of multiple shapes, such as Figure 1 , 2 and 3 are both of the same shape. Figure 4 It is a combination of two shapes, or a combination of other shapes, and the distribution on the substrate is not limited. Figures 1-4 Only an indication of the distribution is given.
[0035] In this embodiment, the aerogel filler uses an aerogel block, and each aerogel filling position is filled with an aerogel block, and the aerogel block corresponds to the shape of the aerogel filling position to be filled. The aerogel block is a ceramic fiber aerogel block, a high silica fiber aerogel block, a mullite fiber aerogel block, a zirconia fiber aerogel block, or a polyacrylonitrile fiber aerogel block.
[0036] In this embodiment, the aerogel filling position 1-1 is a through hole, and each aerogel filling position has two opening directions, and at least one opening direction is provided with a foam layer. That is to say, the foam layer can be laid on only one end face of the substrate, or on both end faces, but a cover plate must be installed in each opening direction. The function of the cover plate is mainly to limit the aerogel block and the foam layer so that they do not separate from the substrate. This embodiment is demonstrated by taking one end face as an example. Figure 5 shown.
[0037] The foam layer used is an aerogel foam layer, and can be a melamine aerogel foam layer, a silicone aerogel foam layer, a CR aerogel foam layer, an EVA aerogel foam layer, a PU aerogel foam layer or an SBR aerogel foam layer.
[0038] Aerogel foam has a large open porosity and a strong noise reduction effect. When set, the foam layer 3 at least covers the position of the substrate 1 that is not filled with aerogel blocks; that is, the foam layer can be provided with a clearance hole at the position corresponding to the aerogel filling position. The setting of the clearance hole can save the amount of foam layer used, and sound insulation can be achieved by relying on the aerogel block. The rest of the places where the aerogel block is not set use the foam layer for sound insulation.
[0039] The foam layer can also cover the aerogel blocks and the parts of the substrate where the aerogel blocks are not filled. The foam layer completely covers the substrate and forms a double-layer sound insulation structure at the overlapping parts of the aerogel blocks, further enhancing the sound insulation effect.
[0040] After laying the foam layer, the cover plate 4 is arranged outside the foam layer and fixedly connected with the substrate 1 in a snap-fit manner. In this embodiment, Figures 1-4 it is shown that there is a cover plate snap-fit position 1-2 on the substrate 1, and the cover plate is fixed to the substrate through the cover plate snap-fit position. The cover plate is correspondingly provided with a corresponding snap-fit structure.
[0041] Of course, aerogel powder, aerogel particles, and aerogel sheets can also be used alone to fill into the aerogel filling positions as aerogel fillers, or any combination of aerogel blocks, aerogel powder, aerogel particles, and aerogel sheets can be used as aerogel fillers, which is specifically selected according to the actual situation as long as the aerogel filling positions can be filled up.
[0042] Embodiment 2:
[0043] An aerogel composite board, wherein the aerogel filling position is a filling groove, and each aerogel filling position has only one opening direction. For a filling groove with only one opening direction, only the foam layer needs to be laid on one side, and then the cover plate is used to fix the foam layer and the aerogel blocks on the substrate. The rest are the same as those in Embodiment 1.
[0044] In the description of this specification, the descriptions with reference to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0045] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A kind of aerogel composite board, characterized in that: It includes a substrate (1), an aerogel filler, a foam layer (3) and a cover plate (4). The substrate (1) is provided with an aerogel filling position (1-1), and each aerogel filling position is filled with an aerogel filler. The aerogel filler is aerogel powder, aerogel sheet, aerogel particles or aerogel block. A foam layer is arranged in the opening direction of the aerogel filling position on the substrate (1), and the foam layer (3) covers at least the position on the substrate (1) where the aerogel filler is not filled. The cover plate (4) is arranged outside the foam layer and fixedly connected to the substrate (1).
2. The aerogel composite board according to claim 1, wherein: The aerogel filling position (1-1) is a through hole. Each aerogel filling position has two opening directions, and at least one opening direction is provided with a foam layer.
3. The aerogel composite board according to claim 1, characterized in that: The aerogel filling position is a filling groove, and each aerogel filling position has only one opening direction.
4. The aerogel composite board according to claim 1 or 2 or 3, characterized in that: The foam layer is an aerogel foam layer.
5. The aerogel composite board according to claim 4, wherein: The foam layer is provided with a relief hole at the position corresponding to the aerogel filling position.
6. The aerogel composite board according to claim 4, wherein: The foam layer covers the aerogel filler and the part of the substrate where the aerogel filler is not filled.
7. The aerogel composite board according to claim 4, characterized in that: The foam layer is a melamine aerogel foam layer, a silica gel aerogel foam layer, a CR aerogel foam layer, an EVA aerogel foam layer, a PU aerogel foam layer or an SBR aerogel foam layer.
8. The aerogel composite board according to claim 1 or 2 or 3, characterized in that: The cover plate is snap-connected to the substrate (1).
9. The aerogel composite board according to claim 8, wherein: A cover plate snap-fitting position is provided on the substrate (1), and the cover plate is fixed to the substrate through the cover plate snap-fitting position.
10. The aerogel composite board according to claim 1, wherein: The aerogel block is a ceramic fiber aerogel block, a high silica fiber aerogel block, a mullite fiber aerogel block, a zirconia fiber aerogel block or a polyacrylonitrile fiber aerogel block.