Laminated aerogel composite board
By dislocating the aerogel material into the laminated substrate, the aerogel composite sheet has been solved in terms of structural strength, sound insulation and thermal insulation performance, and the low-density, high-efficiency sound insulation and thermal insulation effects are achieved, and the mechanical strength and fire resistance are improved.
Patent Information
- Application Number
- CN202422370298.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing aerogel composite sheets have shortcomings in providing structural strength, sound insulation and thermal insulation performance, and are prone to forming acoustic bridges and thermal bridges, affecting the sound insulation and thermal insulation effects.
Through the stacked substrate structure, each substrate is equipped with aerogel filling position along the thickness direction, and the aerogel material is arranged dislocation between the substrates to form an incomplete overlapping aerogel filling area to ensure the comprehensive coverage of the aerogel material on the substrate.
It achieves low-density, high-efficiency sound insulation and heat insulation performance, while improving mechanical strength and elastic deformation resistance, reducing building energy consumption and construction costs, and having good fire resistance and durability.
Smart Images
Figure CN223116002U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of construction, and particularly relates to a laminated 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 low in price, they have problems such as high VOC emissions and general sound insulation and heat insulation effects. However, solid wood boards also have the defects of heavy weight, non-fireproof, and relatively high price, and their use costs are difficult to bear by most consumers.
[0003] As a new type of sound insulation material, the highly open nano-porous structure and porosity of aerogel can effectively absorb and damp the propagation of sound waves, thereby reducing the propagation speed and energy transfer of sound waves. Its low density characteristic enables it to provide good sound insulation and 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 and chemical stability of aerogel, it can maintain stable sound barrier performance in high-temperature environments, which is very valuable in some special application scenarios.
[0004] Aerogel powder has low toughness and low mechanical strength, and is usually made into aerogel composite materials for use. At present, 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 in the parts not filled with aerogel, thereby reducing the sound insulation and heat insulation performance of the boards. Content of the Utility Model
[0005] The utility model provides a laminated aerogel composite board, which is formed by stacking substrates filled with aerogel materials, and the aerogel materials filled between the substrates are arranged in a staggered manner. After stacking, the aerogel materials can cover the substrates to solve the deficiencies described in the above-mentioned prior art.
[0006] The technical solution adopted by the utility model is as follows:
[0007] A laminated aerogel composite board, comprising a laminated substrate structure, the laminated substrate structure including at least two substrates, the substrates being overlapped and placed, each substrate being provided with an aerogel filling position in the thickness direction, and the aerogel filling position being filled with an aerogel filler; the aerogel filling positions of each substrate do not completely overlap. That is to say, the aerogel filling positions of the stacked substrates can partially overlap or can be arranged in a non-overlapping offset manner. The offset arrangement of the aerogel filling positions can achieve the functions of heat insulation and noise reduction for at least two-layer structural composite boards with the least amount of aerogel filler. Moreover, the shapes of the aerogel filling positions on each substrate are not limited, and can be the same or different, or can be a combination of multiple shapes, as long as filling can be achieved. Correspondingly, the shape of the aerogel filler is the same as that of the corresponding aerogel filling position.
[0008] As a preferred embodiment of the present invention, on the orthographic projection obtained by projecting along the direction parallel to the thickness of the substrate, the projections of each aerogel filling position are pieced together to form an aerogel filling area, and the area of the aerogel filling area accounts for 30%-70% of the area of the orthographic projection; and the piecing edges between the aerogel filling positions of different substrates coincide or overlap on the orthographic projection. When the piecing edges overlap, there is no overlapping part between the aerogel filling positions of different substrates, as long as they can be pieced together with coincident edges to form a non-overlapping aerogel filling area on the orthographic projection; when the piecing edges overlap, they can partially overlap, and for the overlapping part, there are two layers of aerogel materials corresponding to it, and the heat insulation effect is better. Moreover, the orthographic projection is the same size as the substrate, and when the aerogel filling area reaches a certain proportion, the functions of heat insulation and noise reduction for the composite board can be achieved. Whether the piecing edges coincide or overlap, after stacking, it is equivalent that the entire board surface of the composite board is filled with aerogel material, avoiding the occurrence of "sound bridges" and "thermal bridges".
[0009] As a preferred embodiment of the present invention, on the same substrate, the aerogel filling positions are independently through holes or filling grooves. That is to say, the aerogel filling positions on the substrate can all be through holes, or can all be filling grooves, or can be a combination of through holes and filling grooves, and are specifically processed according to actual requirements.
[0010] As a preferred embodiment of the present invention, the aerogel fillers are independently selected from aerogel sheets or aerogel blocks. That is to say, only an aerogel sheet or only an aerogel block or a combination of an aerogel sheet and an aerogel block can be used in one aerogel filling position. The aerogel fillers filled in each aerogel filling position on the same substrate can be the same or different; correspondingly, different substrates can have aerogel filling positions of the same shape or different shapes, and the filled aerogel fillers can be the same or different.
[0011] As a preferred embodiment of the present utility model, when using an aerogel block as the filler, 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. When filling, only one of them can be used, or any combination of two or more can be used.
[0012] As a preferred embodiment of the present utility model, the aerogel filler is an aerogel particle layer; or, the aerogel filler is a stacked structure of an aerogel particle layer and an aerogel sheet and / or an aerogel block. That is to say, in one aerogel filling position, only the aerogel particle layer can be used, or a combination of the aerogel particle layer and the aerogel block can be used, or a combination of the aerogel particle layer and the aerogel sheet can be used, or a combination of the aerogel particle layer, the aerogel sheet and the aerogel block can be used.
[0013] As a preferred embodiment of the present utility model, through holes are provided on at least one of the two substrates on the outside of the laminated substrate structure, and a cover plate is fixed to the outer end face of the substrate provided with the through holes. Whether it is a two-layer composite board or a multi-layer composite board, there are at least two substrates on the outside. For the substrate provided with through holes, in order to prevent the aerogel filler from falling off or powdering from the aerogel filling position, a cover plate needs to be provided to cover the aerogel filler.
[0014] As a preferred embodiment of the present utility model, the aerogel filling positions of the two substrates on the outside of the laminated substrate structure are both filling grooves, and the opening directions of the filling grooves of the two outer substrates both face the inside of the laminated substrate structure. For the substrate with a filling groove, as long as the opening of the filling groove faces the inside, it can avoid the aerogel filler from falling off or powdering, and there is no need to additionally provide a cover plate. Of course, a cover plate can also be provided according to needs.
[0015] As a preferred embodiment of the present utility model, the aerogel filling positions of the two substrates on the outside of the laminated substrate structure are both filling grooves, and the opening direction of the filling groove of at least one of the outer substrates faces the outside of the laminated substrate structure, and a cover plate is fixed to the substrate with the filling groove opening facing outward. When the substrate provided with the filling groove has the filling groove opening facing outward, a cover plate needs to be provided to cover the aerogel filler.
[0016] The present utility model makes an aerogel composite board by the method of stagger-filling an aerogel material with two or more substrates and stacking them, which can be applied to the field of indoor architecture and has the following advantages:
[0017] 1) The bulk density of the aerogel filler used is usually between 90 and 110 kg / m³, much lower than that of traditional sound insulation materials. By opening aerogel filling positions on the substrate, especially on the solid wood substrate, and filling the aerogel filler, it can achieve the sound insulation performance of the aerogel material while retaining the mechanical strength of the overall composite board.
[0018] 2) The aerogel composite board has a low density and light weight, and at the same time has high flame retardancy, which makes it more convenient in the construction process and can effectively reduce the energy consumption of buildings.
[0019] 3) By directly filling the aerogel material in the substrate, the thickness of the insulation layer can be reduced, thus saving space and material costs.
[0020] 4) The construction is simple, the construction period is short, and the construction efficiency is improved. This convenience enables the aerogel composite board to be widely promoted in modern architecture and modular architecture.
[0021] 5) It has good fire resistance, does not burn, and does not produce smoke, which makes the aerogel composite board have important application value in the construction field.
[0022] 6) It has the ability to withstand high temperatures and resist mechanical wear, and is suitable for the heat insulation requirements of medium and high temperature environments.
[0023] 7) It has low water absorption, good durability, and a long service life, further reducing the maintenance cost.
[0024] 8) It has an extremely low thermal conductivity, and its heat insulation effect is dozens of times that of traditional heat insulation materials. It can effectively reduce the production heat energy loss of industrial enterprises, and can still maintain a good heat insulation effect in low temperature and low humidity environments.
[0025] 9) When the aerogel filler is used as a panel or interlayer, it can significantly improve the anti-elastic deformation ability and noise reduction ratio of the aerogel composite board. Description of the Drawings
[0026] In order 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 use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0027] Figure 1 It is a schematic structural diagram of a two-layer aerogel composite board of the first structure, where, Figure 1 a is a schematic structural diagram of the first substrate, Figure 1 b is a schematic structural diagram of the second substrate.
[0028] Figure 2 Schematic perspective view of the first substrate and the second substrate of the two-layer aerogel composite board of the first structure.
[0029] Figure 3 Schematic structural view of the two-layer aerogel composite board of the second structure, wherein Figure 3 a is the schematic structural view of the first substrate, Figure 3 b is the schematic structural view of the second substrate.
[0030] Figure 4 Schematic perspective view of the first substrate and the second substrate of the two-layer aerogel composite board of the second structure.
[0031] Figure 5 Schematic structural view of the three-layer aerogel composite board of the first structure, wherein Figure 5 a is the schematic structural view of the first substrate, Figure 5 b is the schematic structural view of the middle substrate, Figure 5 c is the schematic structural view of the second substrate.
[0032] Figure 6 Schematic perspective view of the three substrates of the three-layer aerogel composite board of the first structure.
[0033] Figure 7 Schematic perspective view of the three substrates of the three-layer aerogel composite board of the second structure.
[0034] Figure 8 Cross-sectional view of the two-layer aerogel composite board provided with a cover plate. Specific embodiments
[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0036] Example 1:
[0037] A laminated aerogel composite board, comprising a laminated substrate structure. The laminated substrate structure includes at least two substrates 1 and aerogel fillers 2. The substrates 1 are stacked together. Each substrate 1 is provided with an aerogel filling position 1-1 along the thickness direction, and each aerogel filling position 1-1 is filled with an aerogel filler 2. The aerogel filling positions 1-1 of the substrates 1 are arranged in a staggered manner. The staggered arrangement can be that there is an overlapping part of the aerogel filling positions 1-1 after stacking, or there may be no overlapping part, which is specifically set according to the actual scenario. The substrates 1 used can be solid wood boards or other boards.
[0038] That is to say, two substrates 1 can be used, or three or more substrates 1 can be stacked. In this embodiment, the example of stacking two substrates 1 is shown. As Figure 1-4 shown, among them, taking one outer substrate 1 as a reference, the other outer substrate 1 is the second substrate. In the orthographic projection diagram obtained by projecting along the thickness direction of the substrate 1, the projections of the aerogel filling positions 1-1 form an aerogel filling area, and the area of the aerogel filling area accounts for 30%-70% of the area of the orthographic projection diagram. The splicing edges between the aerogel filling positions 1-1 of different substrates 1 coincide in the orthographic projection diagram, that is, the positions of the aerogel filling positions 1-1 on the two substrates 1 are complementary, that is, the aerogel filling position 1-1 of one substrate 1 is located in the gap between the adjacent aerogel filling positions 1-1 of the other substrate 1.
[0039] Of course, the splicing edges between the aerogel filling positions 1-1 of different substrates 1 in the orthographic projection diagram can also have an overlapping part, and the overlapping part can play a role in multi-layer heat insulation for the composite board. However, in order to save costs, the splicing edges coinciding can achieve the effect.
[0040] There is no limit to the shape of the aerogel filling position 1-1, as long as it can be filled. In this embodiment, the complementary strip-shaped filling position and the complementary cross-shaped filling position are taken as examples for display. Figure 1 and 2 are complementary strip-shaped filling positions. Figure 3 and 4 are complementary cross-shaped filling positions.
[0041] And for the aerogel filling position 1-1, it can be all through holes, all filling grooves, or a combination of through holes and filling grooves, which is specifically processed according to actual requirements.
[0042] For the substrate 1 provided with a through hole, after filling the aerogel filler 2 and stacking, it is necessary to additionally provide a cover plate 3 outside the substrate 1 for protection. That is to say, a through hole can be provided only on one substrate 1, and a filling groove can be provided on the other substrate 1, and the opening of the filling groove faces inward. It is also possible to provide through holes on both substrates 1. As Figure 8 shown, an example of setting two cover plates is shown for illustration.
[0043] For the substrate 1 provided only with a filling groove, after filling the aerogel filler 2, if the opening directions of the filling grooves are all set to face inward, then the cover plate 3 may not be required. Of course, the cover plate 3 can also be added to enhance the function of the composite board, and it can be selected whether to set the cover plate 3 according to actual needs; if the opening direction of the filling groove of one substrate 1 faces outward, then a cover plate 3 is required for the substrate 1 with the filling groove opening facing outward. When the filling grooves of both substrates 1 face outward, two cover plates 3 are provided, as Figure 8 shown.
[0044] The filled aerogel filler 2 can be of one material, such as aerogel particles, aerogel sheets or aerogel blocks, or a mixture of two or three materials. For example, aerogel particles are filled to form an aerogel particle layer, and the aerogel particle layer is mixed with aerogel sheets for filling, or the aerogel particle layer is mixed with aerogel blocks for filling, or the aerogel particle layer is mixed with aerogel sheets and aerogel blocks for filling, or aerogel sheets and aerogel blocks are mixed for filling. When using an aerogel block as the filler, 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. When filling, only one of them can be used, or any combination of two or more can be used.
[0045] The aerogel filler 2 filled in each aerogel filling position 1-1 can exist independently. That is, the aerogel filling positions 1-1 can use aerogel fillers 2 with the same structure, or aerogel fillers 2 with different structures, as long as there is an aerogel filler 2 in the aerogel filling position 1-1.
[0046] Example 2:
[0047] A laminated aerogel composite board is shown by taking the example of stacking three substrates 1, as Figure 5-7As shown, where the first substrate is based on an outer substrate 1, the other outer substrate 1 is the second substrate, and the substrate 1 between the two outer substrates 1 serves as the intermediate substrate; in the orthographic projection obtained by projecting along the thickness direction of the substrate 1, the projections of each aerogel filling position 1-1 are pieced together to form an aerogel filling area, and the piecing edges between the aerogel filling positions 1-1 of different substrates 1 coincide in the orthographic projection, that is, the positions of the aerogel filling positions 1-1 on the three substrates 1 complement each other, so that the aerogel filling area obtained by projection can occupy 30%-70% of the substrate area, that is, the aerogel filling position 1-1 of one substrate 1 is located in the gap between the adjacent aerogel filling positions 1-1 of another substrate 1, and the aerogel filling position 1-1 of the last substrate 1 is located at the positions where the aerogel filling positions 1-1 are not provided on the two substrates 1, and the rest are the same as in Embodiment 1.
[0048] In the description of this specification, the description with reference to terms such as "one embodiment", "example", "specific example", etc. means 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 representation of the above terms does 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.
[0049] The above is only a preferred specific embodiment 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 laminated aerogel composite board, characterized in that: It includes a laminated substrate structure, which includes at least two substrates (1). The substrates (1) are overlapped and placed. Each substrate (1) is provided with an aerogel filling position (1-1) along the thickness direction, and the aerogel filling position (1-1) is filled with an aerogel filler (2); the aerogel filling positions (1-1) of each substrate (1) do not completely overlap.
2. The laminated aerogel composite board according to claim 1, wherein: On the orthographic projection obtained by projecting along the direction parallel to the thickness of the substrate (1), the projections of each aerogel filling position (1-1) are combined into an aerogel filling area, and the area of the aerogel filling area accounts for 30%-70% of the area of the orthographic projection; and the splicing edges of the aerogel filling positions (1-1) of different substrates (1) coincide or overlap on the orthographic projection.
3. The laminated aerogel composite board according to claim 1 or 2, characterized in that: On the same substrate (1), the aerogel filling positions (1-1) are independently through holes or filling grooves.
4. The laminated aerogel composite board according to claim 3, wherein: The aerogel fillers (2) are independently selected from aerogel sheets or aerogel blocks.
5. The laminated aerogel composite sheet according to claim 4, 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.
6. The laminated aerogel composite board according to claim 3, wherein: The aerogel filler (2) is an aerogel particle layer; or, the aerogel filler (2) is a stacked structure of an aerogel particle layer and an aerogel sheet and / or an aerogel block.
7. The laminated aerogel composite board according to claim 3, wherein: Among the two substrates (1) on the outside of the laminated substrate structure, at least one substrate (1) is provided with a through hole, and a cover plate (3) is fixed to the outer end face of the substrate (1) provided with the through hole.
8. The laminated aerogel composite board according to claim 3, characterized in that: The aerogel filling positions (1-1) of the two substrates (1) on the outside of the laminated substrate structure are both filling grooves, and the opening directions of the filling grooves of the two outer substrates (1) all face the inside of the laminated substrate structure.
9. The laminated aerogel composite board according to claim 3, wherein: The aerogel filling positions (1-1) of the two substrates (1) on the outside of the laminated substrate structure are both filling grooves, and the opening direction of the filling groove of at least one of the outer substrates (1) faces the outside of the laminated substrate structure, and a cover plate (3) is fixed to the substrate (1) with the opening direction of the filling groove facing outwards.