Vibration reduction and heat insulation composite material structure

Abstract

The utility model discloses a vibration attenuation and heat insulation composite material structure, which is characterized by comprising n aerogel layers and n + 1 damping glue layers, the damping glue layer is arranged on the outer layer, the aerogel layers and the damping glue layers are arranged in the middle in a staggered manner, and the number of the aerogel layers is n, and the number of the damping glue layers is n + 1. According to the composite material structure, the high-temperature-resistant and shock-resistant damping glue layer and the high-heat-insulation aerogel layer are adopted to form a layered composite structure, the vibration reduction and heat insulation effects are staggered, heat insulation and vibration reduction are integrally designed, the vibration reduction and heat insulation effects are improved, and the requirements of mechanical manufacturing for high temperature and vibration reduction can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration reduction and heat insulation in mechanical manufacturing, in particular to a vibration reduction and heat insulation composite material structure. Background Art

[0002] In the mechanical manufacturing process, vibration damping / heat insulation materials are important functional materials with the following functions: (1) Reducing vibration and noise. Vibration damping materials can absorb and disperse mechanical vibrations, reducing the vibration and noise generated during equipment operation, thereby improving the comfort of the working environment and reducing the impact on the surrounding environment. (2) Prolonging service life. By reducing the relative movement and collision between internal components of the equipment, it can effectively reduce wear and tear, thereby extending the overall service life of the equipment. (3) Improving accuracy. For precision equipment, any tiny vibration may affect its performance. Using vibration damping measures can ensure that the equipment operates in a stable state and improve the accuracy of measurement or processing.

[0003] Protect sensitive components. Many high-tech devices contain components that are extremely sensitive to vibration. Appropriate vibration reduction measures can protect these sensitive components from damage. Thermal insulation: For equipment operating in high or low temperature environments, thermal insulation materials can prevent rapid heat loss or external temperatures from affecting the internal environment, maintaining a stable internal temperature. Safety protection: Vibration reduction measures can also reduce potential safety hazards caused by equipment failure, especially for equipment operating at high speeds or under high loads. Improving efficiency: By reducing unnecessary energy losses (such as those caused by vibration), equipment efficiency can be improved.

[0004] Patent CN202322063255.X discloses a high-temperature-resistant, heat-insulating fan vibration reduction and isolation device. This device achieves vibration reduction through the provision of a vibration reduction component, thereby maintaining stable operation of the fan and reducing the impact of vibration. The device has a compact overall structure, occupies a small space, and is highly practical, making it suitable for widespread application in civil engineering. However, this fan vibration reduction device has a small load-bearing area and high pressure, making it unsuitable for high-load vibration reduction. Furthermore, it lacks a heat-insulating component, resulting in poor insulation and unsuitable for high-temperature (above 130°C) insulation.

[0005] Patent CN202310921452.2 discloses a high-temperature pipeline insulation and vibration reduction mechanism and its design method. The mechanism includes a clamp mounted on the high-temperature pipeline, two sets of rubber isolators, bolts, insulation sleeves, insulation sheets, and heat sinks, respectively, located at each end of the clamp. This mechanism integrates rubber isolators with broadband vibration reduction capabilities, suitable for use at room temperature, into the high-temperature pipeline support structure. However, this structure is complex and unsuitable for confined spaces. Furthermore, it requires a heat dissipation environment, making it unsuitable for high-temperature operating environments.

[0006] Existing patent CN202321260236.X discloses a composite panel, including a surface layer, a bottom layer, and an intermediate layer. The surface layer and the bottom layer are made of UHPC material. The surface layer and the bottom layer are connected to form an integral structure by integrally casting longitudinal ribs, transverse ribs, and side ribs. The middle of the surface layer and the bottom layer is divided into multiple compartments by longitudinal ribs, transverse ribs, and side ribs. The intermediate layer is a lightweight material layer, which is filled in the compartments. It fully utilizes the ultra-high compressive and tensile strength of UHPC materials. At the same time, the intermediate lightweight material provides greater bending stiffness for the UHPC of the surface layer and the bottom layer, saving materials and reducing deadweight. It has the advantages of high structural bearing capacity, light deadweight, sound insulation and vibration isolation, and thermal insulation. However, UHPC (ultra-high performance concrete) has high rigidity and poor vibration reduction effect. It is also intolerant to large loads and high-frequency impact stresses and has a short lifespan.

[0007] In view of this, this patent application is filed. Utility Model Content

[0008] The purpose of this utility model is to provide a vibration-damping and heat-insulating composite material structure to solve the technical problems in the current mechanical manufacturing process, such as the inability of vibration-damping and heat-insulating structures and materials to withstand long-term high-temperature working environments, low loads, poor resistance to high-frequency impacts, and unsatisfactory heat insulation effects.

[0009] The utility model is achieved through the following technical solutions:

[0010] A vibration-damping and heat-insulating composite material structure comprises an aerogel layer and a damping adhesive layer, wherein the outer layer is the damping adhesive layer, and the middle layer is a layer in which the aerogel layer and the damping adhesive layer are staggered. The aerogel layer comprises n layers, and the damping adhesive layer comprises n+1 layers.

[0011] In the present invention, an aerogel layer and a damping adhesive layer are stacked, with the aerogel layer serving as a heat-insulating layer and the damping adhesive layer serving as a vibration-damping layer. The damping adhesive layer, which is the vibration-damping layer, is positioned at the outermost portion of the structure. During use, the damping adhesive layer can absorb impact forces, thereby preventing overload and / or vibration impact forces experienced during mechanical manufacturing. The inner core of the structure is then alternately stacked with aerogel layers and damping adhesive layers, interweaving the vibration-damping and heat-insulating functions. This integrated design of heat insulation and vibration-damping enhances the effectiveness of both. Providing more damping adhesive layers than aerogel layers can further enhance the overall vibration-damping effect of the structure.

[0012] The vibration-damping and heat-insulating composite material structure provided by the utility model can withstand high-temperature working environments of 300°C to 350°C; it has a small thermal conductivity coefficient and high thermal insulation efficiency, with an overall thermal conductivity of <0.02w / mK; it has high vibration reduction efficiency and attenuates impact stress by 60%; and this composite material structure has a small volume, large bearing stress, and a bearing capacity of 200T / ㎡, making it suitable for use in small spaces.

[0013] In an optional embodiment, the layer adjacent to the outer damping rubber layer is an aerogel layer. In this design, the aerogel layers and damping rubber layers are alternately stacked throughout the composite structure, further enhancing the integrated design of thermal insulation and vibration reduction, improving the vibration reduction and thermal insulation effects, and providing better absorption of impact stress, thereby further increasing the load-bearing capacity.

[0014] In an optional embodiment, the damping adhesive layer is a polyimide vibration-damping layer. The polyimide vibration-damping layer not only has a strong vibration-damping capability, but also has excellent high-temperature resistance and high reliability.

[0015] In an optional embodiment, the composite material obtained by stacking the aerogel layer and the damping adhesive layer has an overall thickness of (30-300) mm and a surface area of ​​(0.04-4) m 2 .

[0016] To ensure the composite material structure's overall high-temperature resistance, vibration reduction and heat insulation, and ability to cope with overload and impact, the utility model rationally designs the overall thickness of the composite material structure in relation to its overall surface area. When the overall thickness is less than 30mm, the requirements for high-temperature resistance, vibration reduction, and especially overload and impact resistance, as well as the load-bearing capacity, cannot be met. When the overall thickness is greater than 300mm, although the various properties can be met, the overall structure becomes complex and cannot be fitted into confined spaces. To meet both assembly precision and space requirements, the overall thickness should not be designed to be too high.

[0017] In an optional embodiment, the thickness of the damping rubber layer is (1-5) mm, and the surface area of ​​the layer is (0.04-4) m 2 m2;

[0018] The thickness of the aerogel layer is (5mm-20) mm, and the surface area of ​​the aerogel layer is (0.04-4) m 2 .

[0019] In the present invention, since the composite material structure is formed by stacking aerogel layers and damping adhesive layers, their thickness significantly impacts the overall performance of the material structure. Therefore, accurately designing the thickness of each layer is crucial. Recognizing this, the inventors of this patent have rationally designed the thickness of each damping adhesive layer and aerogel layer while designing the overall thickness of the material structure. The number of layers is then appropriately allocated based on the overall thickness to meet overall usage requirements.

[0020] In an optional embodiment, n is 2-10.

[0021] In an optional embodiment, the surfaces of the aerogel layer and the damping adhesive layer both have textures, and the textures of the contact surfaces of the aerogel layer and the damping adhesive layer match.

[0022] In the present invention, since the aerogel layer and the damping rubber layer are stacked and need to be staggered, the morphology of the contact surface between the two layers will affect the bonding force between adjacent contact layers. In this embodiment, the surface of each layer is designed to have a texture, such as Figure 1 As shown in the figure, both the aerogel layer and the damping adhesive layer have an uneven texture on their surfaces, and the textures of adjacent surfaces are tightly aligned. This design improves the bonding strength between the layers. In the face of large vibrations and impact stresses, the composite material structure itself will not loosen due to vibrations and large impact forces, and the strong bite force is always maintained. This design, which uses texture to form a strong interlayer bite force, also has a certain effect on improving thermal insulation performance.

[0023] In an optional embodiment, the overall damping factor of the composite material structure is (0.3-1.0), and the overall thermal conductivity is (0.03-0.1) W / mK.

[0024] In an optional embodiment, the density of the aerogel layer is (0.02-0.2) g / cm 3 , thermal conductivity is (0.02~0.5)W / mK, heat resistance temperature is (-30~350)℃, 5% compression modulus is (0.5MPa / mm~5MPa / mm);

[0025] The damping factor of the damping rubber layer is 0.3 to 1.5, the temperature resistance range of the damping rubber is -30°C to 350°C, and the tensile strength of the damping rubber is 7.0MPa to 12MPa.

[0026] In an optional embodiment, the bonding strength between the aerogel layer and the damping adhesive layer is (0.5-1.5) MPa.

[0027] The advantages and beneficial effects of the present invention compared to the prior art are:

[0028] The composite material structure of this utility model adopts a high-temperature and shock-resistant damping rubber layer and a high-insulation aerogel layer to form a layered composite structure. It can meet the requirements of mechanical manufacturing for high temperature and vibration reduction, and has the following excellent properties:

[0029] ①Can withstand long-term (300℃~350℃) high temperature working environment.

[0030] ② It has a strong load (5T~10T). Under long-term compressive load, the permanent compression deformation of the composite structure is less than 3%.

[0031] ③ Resistant to high frequency (10-30) Hz impact vibration, with good vibration isolation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the following briefly introduces the drawings required for use in the examples. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be considered as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort. In the drawings:

[0033] Figure 1 This is a schematic structural diagram of the aerogel layer and the damping adhesive layer in the vibration-damping and heat-insulating composite material structure of an embodiment of the utility model from a first perspective.

[0034] Figure 2 This is a schematic structural diagram of the aerogel layer and the damping adhesive layer from a second perspective of an embodiment of the utility model.

[0035] Figure 3 This is a diagram showing the working principle of the vibration-damping and heat-insulating composite material structure according to an embodiment of the present utility model.

[0036] In the figure: 1-metal base; 2-vibration reduction / thermal insulation material composite structure, 21-damping rubber layer, 22-aerogel layer; 3-nuclear power plant cooling main pump. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The schematic implementation methods of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0038] In the following description, numerous specific details are set forth to provide a thorough understanding of the present invention. However, it will be apparent to one skilled in the art that these specific details are not necessarily required to practice the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not described in detail to avoid obscuring the present invention.

[0039] Throughout this specification, references to "one embodiment," "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment," "an embodiment," "an example," or "an example" appearing in various places throughout this specification do not necessarily refer to the same embodiment or example. In addition, the particular features, structures, or characteristics may be combined in one or more embodiments or examples in any suitable combination and / or subcombination. Furthermore, it will be understood by those of ordinary skill in the art that the figures provided herein are for illustrative purposes only and are not necessarily drawn to scale. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0040] In the description of the present invention, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the scope of protection of the present invention.

[0041] Example 1:

[0042] like Figure 1 、 2 As shown in , this embodiment provides a vibration-damping and heat-insulating composite material structure, including an aerogel layer 22 and a damping adhesive layer 21. The aerogel layer 22 serves as a heat-insulating layer, and the damping adhesive layer 21 serves as a vibration-damping layer. The aerogel layer 22 and the damping adhesive layer 21 are stacked, and the damping adhesive layer 21 is located on the outer layer, and the aerogel layer 22 and the damping adhesive layer 21 are located in the middle layer. The aerogel layer 22 is n layers, and the damping adhesive layer 21 is n+1 layers. The damping adhesive layer 21 has one more layer than the aerogel layer 22. Figure 1The example shown in the figure only shows two aerogel layers 22 and three damping rubber layers 21. Of course, the number of aerogel layers 22 can also be designed to be other numbers, such as three, four, five, six, or seven layers, preferably no more than ten. This ensures that the overall performance of the resulting composite structure meets the required performance while also maintaining the simplicity of the overall structure, making it suitable for use in confined spaces. The damping rubber layer 21 is the external vibration-damping layer, which prioritizes external pressure and pressure shock during use, absorbing the impact force. The thermal insulation layer is positioned within the inner layer for better insulation, preventing heat exchange and heat dissipation between the outer layer and the surrounding environment. Alternating the aerogel layers 22 and damping rubber layers 21 within the inner layer further enhances the integrated design of thermal insulation and vibration reduction, synergizing these two functions to maximize their effectiveness. This integrated design is a very clever design in the present invention, which comprehensively considers heat insulation, vibration reduction, and the volume size of the overall structure, structural simplicity, subsequent manufacturing difficulty, and adaptability to small spaces, to achieve the best comprehensive performance in all aspects.

[0043] The layered composite structure of this embodiment can meet the operating environment requirements of vibration reduction and thermal insulation of the primary circuit main pump base of a nuclear reactor, including the following specific technical indicators:

[0044] 1. Withstand long-term (300℃~350℃) high temperature working environment, the composite structural material has strong resistance to thermal decomposition.

[0045] 2. Under strong load (5T~10T), long-term compressive load, the permanent compression deformation of the composite structure is less than 3%.

[0046] 3. It can withstand high frequency (10-30) Hz impact vibration and has good vibration isolation effect.

[0047] At the same time, it has high reliability and resistance to high-energy radiation, meeting the material aging requirements caused by high-energy radiation in nuclear power primary circuit conditions. The service life reaches 50 years.

[0048] Furthermore, in this embodiment, the layer adjacent to the outer damping rubber layer 21 is an aerogel layer 22, so that the overall structure forms a design structure in which the thermal insulation layer and the vibration reduction layer are staggered. Based on the above discussion, it is beneficial to improve the overall performance of the structure.

[0049] Preferably, in this embodiment, the damping rubber layer 21 is a polyimide vibration reduction layer, and polyimide has better high temperature resistance.

[0050] Example 2:

[0051] On the basis of Example 1, Figure 1 、 2As shown in FIG, the composite material obtained by stacking the aerogel layer 22 and the damping rubber layer 21 is designed to have a total thickness of (30 to 300) mm and a total surface area of ​​(0.04 to 4) m 2 .

[0052] The thickness of the damping rubber layer 21 is designed to be (1-5) mm, and the surface area of ​​the single layer is (0.04-4) m 2 .

[0053] The thickness of the aerogel layer 22 is designed to be (5mm~20)mm, and the surface area of ​​the aerogel layer is (0.04~4)m 2 .

[0054] The surface area mentioned in this embodiment refers to the area of ​​the contact surfaces between the layers, that is, the area of ​​the top surface and the bottom surface, and does not include the lateral area generated by the thickness of the layers.

[0055] The present invention comprehensively considers vibration reduction, heat insulation, impact resistance, and overall size, and rationally designs the overall thickness and overall surface area of ​​the composite material structure. Since the composite material structure of this embodiment is a stacked structure of an aerogel layer 22 and a damping adhesive layer 21, the thickness of the aerogel layer 22 and the damping adhesive layer 21 have a significant impact on the overall performance of the material structure. Therefore, it is relatively important to accurately design the thickness of each layer. While designing the overall thickness of the material structure, the inventors of this patent also rationally designed the thickness of the damping adhesive layer 21 and the aerogel layer 22, and rationally allocated the number of layers based on the overall thickness to meet the overall usage requirements.

[0056] Example 3:

[0057] On the basis of Example 1 or Example 2, the inventors further realized that the combination of layers of this layered composite structure will also have a significant impact on the overall vibration reduction, impact resistance, long-term load, etc. of the composite material structure. Therefore, the inventors designed that the surfaces of the aerogel layer 22 and the damping rubber layer 21 both have textures (such as Figure 1 As shown in Figure 2, the textures of the aerogel layer 22 and the damping rubber layer 21 at their interface are matched. This design has the advantage of enhancing the bonding strength between the layers. Even in the face of high vibration and impact stress, the composite material structure itself will not loosen due to vibration and high impact, maintaining a strong interlayer bond. This design, which utilizes a textured structure to generate a high interlayer bond, also has a certain effect on improving thermal insulation performance. This design is also a relatively unique feature of this embodiment.

[0058] Example 4:

[0059] On the basis of Example 1, 2 or 3, the inventors further defined the properties of the aerogel layer 22 and the damping adhesive layer 21 used, so as to selectively design the aerogel layer 22 and the damping adhesive layer 21 to affect the overall structure of the composite material.

[0060] Specifically, the overall damping factor of the composite material structure is limited to (0.3-1.0), and the overall thermal conductivity is (0.03-0.1) W / mK. On this basis, the density of the aerogel layer 22 is further limited to (0.02-0.2) g / cm 3 The thermal conductivity is (0.02-0.5) W / mK, the heat resistance temperature is (-30-350)°C, and the 5% compression modulus is (0.5 MPa / mm-5 MPa / mm). The damping factor of the damping adhesive layer 21 is 0.3-1.5, the temperature resistance range of the damping adhesive is -30-350°C, and the tensile strength of the damping adhesive is 7.0 MPa-12 MPa. The bonding strength between the aerogel layer 22 and the damping adhesive layer 21 is further limited to (0.5-1.5) MPa.

[0061] Based on the above definition, the specification of the damping rubber layer 21 selected in this embodiment is BH-505 produced by Beijing Beihua Engineering Technology Co., Ltd. The aerogel layer 22 can also be purchased and is an existing product.

[0062] The composite material structure of the present invention can be formed by scraping the polyimide damping adhesive layer 21, stacking and curing by heating and pressing to stack the layers. The specific method is an existing mature technology.

[0063] like Figure 3 As shown in, as an example, the application scenario of the composite material structure of the present invention is presented. Figure 3 In the working state diagram, the metal base is located at the bottom layer, the vibration reduction / heat insulation material composite structure 2 (i.e., composite material structure) of each embodiment is located in the middle, and the nuclear power plant cooling main pump 3 is located at the top layer. Its static and dynamic action mechanisms are as follows:

[0064] 1. When the cooling main pump 3 is in a stopped state, the vibration damping / heat insulation material composite structure 2 is subjected to static pressure, and the temperature of the main pump is isolated by the aerogel layer 22 in the vibration damping / heat insulation material composite structure 2.

[0065] 2. When the cooling main pump 3 is in the startup process, the vibration reduction / heat insulation material composite structure 2 is subjected to overload pressure shock. The damping rubber layer 21 of the vibration reduction / heat insulation material composite structure 2 absorbs the impact force to prevent the overload impact force from being transmitted to the metal base, and the temperature of the main pump is isolated by the aerogel plate.

[0066] 3. When the cooling main pump 3 is in operation, the vibration-damping / heat-insulating material composite structure 2 is subjected to high-frequency periodic pressure shocks. The damping rubber layer 21 in the vibration-damping / heat-insulating material composite structure 2 blocks the vibration impact force from being transmitted to the metal base, and the main pump temperature is blocked by the aerogel plate.

[0067] 4. When the cooling main pump 3 is in the shutdown process, the vibration damping / heat insulation material composite structure 2 is subjected to overload pressure shock. The damping rubber layer 21 in the vibration damping / heat insulation material composite structure 2 absorbs the impact force to prevent the overload impact force from being transmitted to the metal base, and the temperature of the main pump is isolated by the aerogel plate.

[0068] In summary, the vibration-damping and heat-insulating composite material structure of the present invention has the following technical advantages:

[0069] 1. Ability to withstand high-temperature working environments. Existing thermal insulation and vibration reduction materials are generally used in automobiles and conventional engines, with operating temperatures ranging from -30°C to 130°C. However, the vibration reduction / thermal insulation composite material structure of this utility model can withstand temperatures of 300°C to 350°C.

[0070] 2. It also provides efficient vibration reduction and thermal insulation. Existing systems that separate insulation and vibration reduction are bulky and ineffective. The aerogel insulation panels of this new utility model combine insulation and vibration reduction in an integrated design. They offer low thermal conductivity and high insulation efficiency, with an overall thermal conductivity of less than 0.02w / mK. They also offer high vibration reduction efficiency and a 60% reduction in impact stress.

[0071] 3. Small size, large vibration damping area, and high bearing capacity. Existing thermal insulation and vibration damping devices have low unit bearing capacity. The vibration damping / thermal insulation composite material structure of this utility model has a small size, high bearing stress, and a bearing capacity of 200 tons / ㎡, making it suitable for use in confined spaces.

[0072] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific implementation methods of the utility model and are not used to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A vibration-damping and heat-insulating composite material structure, characterized in that: It includes an aerogel layer and a damping rubber layer. The outer layer is the damping rubber layer, and the middle layer is a layer in which the aerogel layer and the damping rubber layer are staggered. The aerogel layer is n layers, and the damping rubber layer is n+1 layers.

2. The vibration-damping and heat-insulating composite material structure according to claim 1, characterized in that: The layer adjacent to the outer damping rubber layer is an aerogel layer.

3. The vibration-damping and heat-insulating composite material structure according to claim 2, characterized in that: The damping adhesive layer is a polyimide vibration reduction layer.

4. The vibration-damping and heat-insulating composite material structure according to claim 3, characterized in that: The composite material obtained by stacking the aerogel layer and the damping adhesive layer has an overall thickness of (30-300) mm and a surface area of ​​(0.04-4) m 2 .

5. The vibration-damping and heat-insulating composite material structure according to claim 4, characterized in that: The thickness of the single layer of the damping rubber layer is (1-5) mm, and the surface area is (0.04-4) m 2 ; The thickness of the aerogel layer is (5mm-20) mm, and the surface area of ​​the aerogel layer is (0.04-4) m 2 .

6. The vibration-damping and heat-insulating composite material structure according to claim 1, characterized in that: The n is 2-10.

7. A vibration-damping and heat-insulating composite material structure according to any one of claims 1 to 6, characterized in that: The surfaces of the aerogel layer and the damping adhesive layer both have textures, and the textures of the contact surfaces of the aerogel layer and the damping adhesive layer match each other.

8. The vibration-damping and heat-insulating composite material structure according to claim 7, characterized in that: The overall damping factor of the composite material structure is (0.3-1.0), and the overall thermal conductivity is (0.03-0.1) W / mK.

9. The vibration-damping and heat-insulating composite material structure according to claim 8, characterized in that: The density of the aerogel layer is (0.02-0.2) g / cm 3 , thermal conductivity is (0.02~0.5)W / mK, heat resistance temperature is (-30~350)℃, 5% compression modulus is (0.5MPa / mm~5MPa / mm); The damping factor of the damping rubber layer is 0.3 to 1.5, the temperature resistance range of the damping rubber is -30°C to 350°C, and the tensile strength of the damping rubber is 7.0MPa to 12MPa.

10. The vibration-damping and heat-insulating composite material structure according to claim 8 or 9, characterized in that: The bonding strength between the aerogel layer and the damping adhesive layer is (0.5-1.5) MPa.

Images