Aerogel type hydraulic heat preservation and insulation component

Abstract

The utility model relates to the technical field of heat preservation and insulation materials, in particular to an aerogel type hydraulic heat preservation and insulation component which structurally comprises a non-woven fabric surface layer, a core heat preservation layer and sewing threads. Aerogel is filled between the upper surface layer and the lower surface layer, and the upper surface layer and the lower surface layer are bonded through a binder; the core heat preservation layer is located between the two non-woven fabric surface layers. The sewing threads penetrate through and are connected with the two non-woven fabric surface layers and the core heat preservation layer. The non-woven fabric surface layer and the core heat preservation layer are sewn through the sewing lines, and the effect of improving the normal tensile strength of the aerogel type hydraulic heat preservation and insulation component is achieved.

Description

Technical Field

[0001] This application relates to the field of thermal insulation materials technology, and in particular to an aerogel-type hydraulic thermal insulation component. Background Technology

[0002] With the advancement of the national dual-carbon policy, the construction of reservoirs in the frigid northern regions is gradually increasing, making winter insulation of gravity dams a necessary technical requirement. In the field of hydropower engineering technology, the necessity of winter insulation measures for gravity dams is mainly reflected in the following aspects:

[0003] To prevent temperature cracking, in extremely cold regions, significant temperature differences can occur between the surface and interior of concrete, leading to the formation of thermal stress. If this thermal stress exceeds the tensile strength of the concrete, cracks may develop. Insulation measures can reduce this temperature difference, thereby controlling the growth of thermal stress and lowering the risk of cracking.

[0004] To ensure construction quality, the hydration reaction of concrete slows down under low temperatures, which may lead to slow early strength development. By taking appropriate insulation measures, a suitable temperature environment can be maintained to promote the normal hardening process of concrete and ensure that it meets the expected quality standards.

[0005] Improving structural durability is crucial, especially for concrete structures exposed to extreme cold climates where repeated freeze-thaw cycles pose a significant threat. Effective insulation can mitigate the impact of freeze-thaw cycles on concrete, enhancing the structure's durability and service life.

[0006] Optimizing stress distribution, as studies have shown, is crucial because surface insulation measures can effectively reduce the temperature gradient and stress gradient on the concrete surface, as well as the temperature difference between the inside and outside of the dam concrete. This helps optimize the stress state of the entire dam structure and avoids adverse effects caused by temperature changes.

[0007] To adapt to special climatic conditions, in cold, arid, or high-altitude regions, extreme minimum temperatures can drop as low as -49.8℃, and the cold season lasts for a long time. These special climatic conditions require that the "cold" factor be taken into account during dam construction to ensure the safety and stability of the project.

[0008] Protecting concrete from ice damage is crucial, as in some cases, unprotected concrete can suffer damage from ice crystal growth. Good insulation can help prevent this, especially for sections located in areas with fluctuating water levels.

[0009] In conclusion, when constructing gravity dams in cold regions, implementing reasonable insulation measures is not only necessary, but also one of the key technical means to ensure project quality and long-term safe operation.

[0010] Traditional gravity dam insulation techniques involve the following steps applied sequentially from the dam surface outwards to the water surface: (50-80)mm of sprayed polyurethane foam (0.03-0.10) g / cm³. 3 (40-60)mm fiberglass mesh reinforced cement mortar and (1.5-2.0)mm polyurea waterproof layer.

[0011] Due to the low tensile strength of polyurethane sprayed foam (≤0.1MPa), the outer cement mortar layer and polyurea layer have a large weight (80~170) kg / m². 2 Furthermore, the pressure difference caused by water level fluctuations is repeatedly amplified; sprayed rigid polyurethane foam is prone to yielding, powdering, loss of strength, and detachment. Utility Model Content

[0012] In view of this, the purpose of this application is to provide an aerogel-type hydraulic insulation component to solve the technical problem of polyurethane sprayed foam falling off in the prior art.

[0013] (1) Use aerogel materials instead of sprayed polyurethane foam to improve the thermal insulation effect;

[0014] (2) Use non-woven fabric / adhesive / aerogel composite materials to improve the warp and weft strength of aerogel.

[0015] (3) Use sewing thread to sew the non-woven fabric and aerogel to improve the normal strength of the aerogel surface layer.

[0016] To achieve at least one of the above objectives, this application provides the following technical solution:

[0017] In a first aspect, this application provides an aerogel-type hydraulic thermal insulation component, including a non-woven fabric surface layer, a core insulation layer, and a sewing thread; the core insulation layer is located between two non-woven fabric surface layers; the sewing thread passes through and connects the two non-woven fabric surface layers and the core insulation layer.

[0018] Optionally, the core insulation layer includes a core nonwoven fabric, which is a component made of at least one of polypropylene, nylon, polyester or chlorofiber.

[0019] Optionally, the sewing thread is a sewing thread made of at least one of polypropylene, nylon, polyester or chlorofiber.

[0020] Optionally, the thread width spacing can be 10cm to 60cm.

[0021] Optionally, the apparent density of the nonwoven fabric surface layer is 200 kg / m³. 3 ~300kg / m 3 The natural fluffy thickness is 0.3mm to 1.5mm.

[0022] Optionally, the core insulation layer includes an adhesive and an aerogel, with the adhesive bonding the aerogel and the nonwoven fabric surface.

[0023] Optionally, the core insulation layer may also include a core nonwoven fabric, and an adhesive may be used to bond the aerogel to the core nonwoven fabric, the adhesive including an aqueous polyurethane emulsion.

[0024] Optionally, the waterborne polyurethane emulsion includes a one-component waterborne polyurethane emulsion.

[0025] The core insulation layer includes an aqueous polyurethane emulsion and an aerogel. The aqueous polyurethane emulsion is a single-component aqueous polyurethane emulsion.

[0026] Optionally, the content of the waterborne polyurethane emulsion solids is between 10% and 30%, and the content of the aerogel is between 10% and 30%.

[0027] Optionally, the apparent density of the core insulation layer is 10 g / m³. 3 ~20g / m 3 The natural fluffy texture has a thickness of 1mm to 5mm.

[0028] In the above technical solution, by adding stitches to sew the nonwoven fabric surface layer and the core insulation layer, the normal tensile strength of the aerogel-type hydraulic insulation component is improved.

[0029] In some embodiments, hydraulic aerogel insulation materials are lightweight, requiring less fabric thickness to achieve the same insulation effect.

[0030] Hydraulic aerogel insulation materials combine multiple advantages such as heat insulation, waterproofing, windproofing, and breathability.

[0031] The manufacturing process of aerogel insulation materials for hydraulic engineering is simple. Based on existing materials, it can be completed through simple hot pressing or bonding.

[0032] Aerogel insulation material for hydraulic engineering can be cut to any size, and is washable by water or machine.

[0033] Aerogel insulation material for hydraulic engineering uses a two-layer fabric bonding composite method, which ensures flexibility and is not easily deformed because its heat insulation layer adopts a knitted structure. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1This is a schematic diagram of a structure in one embodiment where a sewing thread is used to sew together the nonwoven fabric surface layer and the core insulation layer;

[0036] Figure 2 This is a schematic diagram of a structure in one embodiment where the sewing thread is used to stitch the non-woven fabric surface layer and the core insulation layer in a parallel manner;

[0037] Figure 3 This is a schematic diagram of a structure in one embodiment where the sewing thread is stitched in a mesh pattern to sew the nonwoven fabric surface layer and the core insulation layer.

[0038] The attached figures are labeled as follows:

[0039] 1. Non-woven fabric surface layer; 2. Core insulation layer; 3. Sewing thread. Detailed Implementation

[0040] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. Through these descriptions, the features and advantages of the present application will become clearer and more apparent.

[0041] The term "embodiment" as used in this application means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application can be combined with other embodiments.

[0042] The specific term "exemplary" used in this application means "serving as an example, embodiment, or illustration." Any embodiment illustrated as "exemplary" is not necessarily to be construed as superior or better than other embodiments. Although various aspects of embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated otherwise.

[0043] In the description of this application, the technical terms "first", "second", "third", etc. are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features.

[0044] In the description of this application, the technical term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0045] In the description of this application, the technical terms "upper", "lower", "inner", "outer", "front", "back", "left", "right", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0046] In the description of this application, unless otherwise expressly specified and limited, the technical terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] In the description of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0048] The terms "parallel" and "perpendicular" used in this application can mean not only perfectly parallel and perpendicular, but also have a certain margin of error; for example, if the angle between the two is greater than or equal to 0° and less than or equal to 5°, they are considered to be parallel; if the angle between the two is greater than or equal to 85° and less than or equal to 95°, they are considered to be perpendicular.

[0049] In the description of this application, "multiple" means two or more (including two), unless otherwise expressly and specifically defined.

[0050] In the description of this application, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments. It should be understood that the thickness, length, and other dimensions of the various parts in the embodiments of this application shown in the drawings, as well as the overall thickness, length, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0051] As part of the inventive concept of this application, before describing the embodiments of this application, it is necessary to analyze the reasons for the problem of misalignment and separation of fabric and aerogel during use in related technologies, and obtain the technical solution of the embodiments of this application through reasonable analysis.

[0052] Hydraulic structures are buildings used to control and regulate water flow, prevent water-related disasters, and develop and utilize water resources. They are an important component in achieving the goals of various water conservancy projects.

[0053] When existing aerogel insulation components are used in hydraulic engineering, they are attached to the surface of dams for heat insulation of gravity dam surfaces. A mortar layer with a thickness of 7 cm is installed outside the aerogel insulation component, and a polyurea layer with a thickness of 1.5 mm is installed outside the mortar layer.

[0054] The tensile strength of the interlayer normal direction of existing nonwoven fabric and aerogel is generally less than 0.1 MPa. In actual use, the mortar layer set on the aerogel insulation component weighs about 30 kg per square meter. The gravity dam is relatively steep, and the tensile strength of the normal direction between the nonwoven fabric and aerogel is relatively large. After a period of use, large areas of the mortar layer fall off, and the nonwoven fabric layer and aerogel layer on the surface of the aerogel insulation component delaminate.

[0055] To address this issue, this application provides an aerogel-type hydraulic insulation component, comprising a non-woven fabric surface layer, a core insulation layer, and sewing thread. The core insulation layer is located between two non-woven fabric surface layers; the sewing thread penetrates and connects the two non-woven fabric surface layers and the core insulation layer, thereby solving the technical problem of separation between the non-woven fabric surface layer and the core insulation layer in existing insulation components.

[0056] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings. The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0057] For ease of explanation, we define a first direction, a second direction, and a third direction, where the first direction is the radial direction of the nonwoven fabric, the second direction is the weft direction, and the third direction is the normal direction. The first, second, and third directions are perpendicular to each other. In the accompanying drawings, the first direction is represented as the X direction, the second direction as the Y direction, and the third direction as the Z direction.

[0058] Example 1

[0059] This application discloses an aerogel-type hydraulic insulation component. (Refer to...) Figure 1The aerogel-type hydraulic insulation component includes a non-woven fabric surface layer 1, a core insulation layer 2, and a sewing thread 3. The core insulation layer 2 is located between the two non-woven fabric surface layers 1; the sewing thread 3 passes through and connects the two non-woven fabric surface layers 1 and the core insulation layer 2.

[0060] The core insulation layer 2 includes an aerogel / nonwoven composite layer, which includes a core nonwoven fabric and an aerogel composite, which includes an aqueous polyurethane emulsion and an aerogel.

[0061] The molding method of the nonwoven fabric surface layer 1, the core insulation layer 2, and the sewing thread 3 is described. The core insulation layer 2 includes a core aerogel, which is obtained by mixing water-based polyurethane emulsion with the aerogel. The core insulation layer 2 is formed by coating the aerogel slurry onto the core nonwoven fabric using a coating production line, and after curing, an aerogel / nonwoven fabric composite layer is obtained.

[0062] The nonwoven fabric surface layer 1 is formed by bonding nonwoven fabric and aerogel slurry together in the doctor blade production line to form a multi-layer aerogel composite component. At this time, the component consists of nonwoven fabric surface layer 1, core insulation layer 2 and nonwoven fabric surface layer 1 in sequence along the thickness direction.

[0063] The multi-layer aerogel composite component is sewn together with sewing thread 3 to increase the normal tensile strength of the multi-layer aerogel composite component. The multi-layer aerogel composite component refers to the component composed of non-woven fabric surface layer 1, aerogel / non-woven fabric composite layer and non-woven fabric surface layer 1.

[0064] Aerogel slurry is filled into the voids of the core nonwoven fabric. After drying, it is bonded to the nonwoven fabric through emulsion. The aerogel restores a high surface structure with many pores, forming a composite material. Due to the obstruction of air flow, the core insulation layer 2 exhibits good thermal insulation performance.

[0065] Using sewing thread 3 to sew and fix the nonwoven fabric surface layer 1 and the core insulation layer 2 improves the integrity between the nonwoven fabric surface layer 1 and the core insulation layer 2, especially improves the normal tensile strength.

[0066] By employing a post-composite approach, combining aerogel / nonwoven composite materials with other functional materials using an aerogel adhesive layer, the problems of low strength and easy detachment of existing gravity dam insulation layers can be effectively solved.

[0067] It should be noted that the component formed by sewing the nonwoven fabric surface layer 1, the core insulation layer 2 and the nonwoven fabric surface layer 1 together with the sewing thread 3 can be called material, insulation component, heat insulation layer, insulation material or other names.

[0068] In another embodiment, the aerogel-type hydraulic thermal insulation component includes a nonwoven fabric surface layer 1, a core insulation layer 2, a nonwoven fabric intermediate layer, a core insulation layer 2, and a nonwoven fabric surface layer 1 arranged sequentially along the thickness direction, and a sewing thread 3 sews and fixes the nonwoven fabric surface layer 1, the core insulation layer 2, the nonwoven fabric intermediate layer, the core insulation layer 2, and the nonwoven fabric surface layer 1.

[0069] Reference Figure 1 As an alternative, the core nonwoven fabric is a component made of at least one of polypropylene, nylon, polyester or chlorofiber.

[0070] In this embodiment, the core nonwoven fabric is a nonwoven fabric made of polypropylene. In another embodiment, the core nonwoven fabric is a nonwoven fabric made of both polypropylene and nylon.

[0071] Reference Figure 1 As an alternative, the sewing thread 3 is a sewing thread 3 made of at least one of polypropylene, nylon, polyester or chlorofiber.

[0072] In this embodiment, the sewing thread 3 is a thread made of polypropylene. In another embodiment, the sewing thread 3 is a thread made of both polypropylene and nylon.

[0073] Reference Figure 1 As an alternative, the nonwoven surface layer 1 is a nonwoven component formed using at least one of polypropylene, nylon, polyester or chlorofiber as the material.

[0074] In this embodiment, the nonwoven surface layer 1 is a nonwoven fabric made of polypropylene. In another embodiment, the core nonwoven fabric is a nonwoven fabric made of both polypropylene and nylon.

[0075] As an optional option, the spacing of the sewing thread 3 is 10cm to 60cm.

[0076] In this embodiment, the spacing between the sewing thread 3 is 40cm. In another embodiment, the spacing between the sewing thread 3 is 10cm, 12cm, 15cm, 17cm, 18cm, 19cm, 20cm, 30cm, 35cm, 42cm, 48cm, 50cm, 52cm, 56cm, or 60cm. The spacing between the sewing thread 3 is determined according to design requirements.

[0077] The line width of sewing thread 3 is represented by the planar distance between adjacent sewing threads 3, see Appendix. Figure 2 Or the distance indicated by L in 3. The sewing thread 3 is indicated by a dashed line in the attached diagram.

[0078] The sewing method for sewing thread 3 between the non-woven fabric surface layer 1 and the core insulation layer 2 is determined according to design requirements; it can be an attachment. Figure 2 The multi-row sutures shown in the diagram can also be attached. Figure 3 The diagram illustrates a grid stitch, or other existing stitching methods that can achieve the desired stitching.

[0079] As an alternative, the apparent density of the nonwoven fabric surface layer 1 is 200 kg / m³. 3 ~300kg / m 3 The natural fluffy thickness is 0.3mm to 1.5mm.

[0080] In this embodiment, the apparent density of the nonwoven fabric surface layer 1 is 250 kg / m³. 3 In another embodiment, the apparent density of the nonwoven surface layer 1 is 200 kg / m³. 3 220kg / m 3 245kg / m 3 270kg / m 3 280kg / m 3 Or 300kg / m 3 The apparent density of the nonwoven fabric surface layer 1 is determined according to design requirements.

[0081] In this embodiment, the natural bulk thickness of the nonwoven fabric surface layer 1 is 0.9 mm. In another embodiment, the natural bulk thickness of the nonwoven fabric surface layer 1 is 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, 0.8 mm, 1.3 mm, 1.4 mm, or 1.5 mm. The natural bulk thickness of the nonwoven fabric surface layer 1 is determined according to design requirements.

[0082] As an alternative, the waterborne polyurethane emulsion is a one-component waterborne polyurethane emulsion.

[0083] In another embodiment, the aqueous polyurethane emulsion is a two-component aqueous polyurethane emulsion.

[0084] As an alternative, the waterborne polyurethane emulsion contains 10% to 30% solids and 10% to 30% aerogel.

[0085] As an optional solution, the apparent density of the core insulation layer 2 is 10 g / m³. 3 ~20g / m 3 The natural fluffy texture has a thickness of 1mm to 5mm.

[0086] In this embodiment, the apparent density of the core insulation layer 2 is 15 g / m³. 3 In another embodiment, the apparent density of the core insulation layer 2 is 10 g / m³. 3 12g / m 3 13g / m3 17g / m 3 18g / m 3 Or 20g / m 3 The apparent density of the core insulation layer 2 is determined according to design requirements.

[0087] In this embodiment, the natural bulk thickness of the core insulation layer 2 is 3 mm. In another embodiment, the natural bulk thickness of the core insulation layer 2 is 1 mm, 1.4 mm, 2.5 mm, 3.6 mm, 3.8 mm, 4.3 mm, 4.6 mm, or 5 mm. The natural bulk thickness of the core insulation layer 2 is determined according to design requirements.

[0088] The density of the aerogel slurry is 1.18 g / cm³. 3 The density after being filled into nonwoven fabric is 1.1 g / cm³. 3 After drying, the concentration is 10-20 g / cm³. 3 .

[0089] The raw material components of the core insulation layer 2, by mass parts, include 100 parts by weight of waterborne polyurethane emulsion; 0 to 200 parts by weight of distilled water; and 11 to 86 parts by weight of aerogel powder.

[0090] Waterborne polyurethane emulsions include one-component waterborne polyurethane emulsions and two-component waterborne polyurethane emulsions. In this embodiment, a one-component waterborne polyurethane emulsion is selected.

[0091] Example 2

[0092] Furthermore, in practical use, a PU coating can be applied to the surface of the nonwoven fabric layer 1. Specifically, after the aerogel-type hydraulic insulation component is laid and fixed, a polyurethane material is applied to the surface of the outer nonwoven fabric layer 1 to form a PU coating.

[0093] Furthermore, in practical use, an organic material film can be applied to the surface of the nonwoven fabric layer 1.

[0094] Furthermore, in practical use, a polyethylene film or a polypropylene film can be applied to the surface of the nonwoven fabric layer 1.

[0095] Example 3

[0096] The embodiments of this application provide a manufacturing process for an aerogel-type hydraulic thermal insulation component.

[0097] Step 1: Prepare the aerogel slurry.

[0098] Aerogel slurry is prepared by mixing aerogel with waterborne polyurethane / curing agent.

[0099] Step 2: Prepare the core insulation layer 2.

[0100] The aerogel slurry is coated onto the nonwoven fabric using a coating production line, and after curing, the core insulation layer 2 is obtained.

[0101] Step 3: Prepare the nonwoven fabric surface layer 1.

[0102] In the coating production line, the upper and lower nonwoven fabric surface layers 1 are bonded to the two surfaces of the core insulation layer 2 in the thickness direction, respectively, and the aerogel slurry is used to bond with the nonwoven fabric surface layers 1 to obtain a multilayer aerogel composite material.

[0103] Step 4: Reinforce with sewing thread 3.

[0104] By using a sewing process, the nonwoven fabric surface layer 1 and the core insulation layer 2 are sewn together on a multi-layer aerogel composite material.

[0105] The material of the core insulation layer 2 is based on existing technology and can be obtained by directly mixing high-adhesion resin and aerogel powder or by purchasing it on the market, such as the aerogel coating material produced by Shenzhen Zhongning Technology Co., Ltd.

[0106] Example 4

[0107] This embodiment discloses the actual manufacturing process of an aerogel-type hydraulic insulation component:

[0108] Step A: According to the formula, select a single-component waterborne polyurethane emulsion with a solid content of 20% and an aerogel with a solid content of 20 wt%.

[0109] Step B: Dilute the aqueous polyurethane emulsion with distilled water in batches, then gradually add aerogel powder, and stir the mixture with a high-speed disperser at a speed of 500 rpm to 3000 rpm for 1 to 3 hours to obtain an aerogel slurry.

[0110] Step C: Add the aerogel slurry to the material tank and feed it into the scraper slurry storage tank through the feeding pump. Adjust the scraper spacing to 1.2mm and control the slurry amount to about 200g. The slurry enters the drying tunnel along with the nonwoven fabric bonded to the bonding roller. The traction speed of the bonding roller is 1m / min, the temperature of the drying tunnel is 135℃, and the drying time is 18min.

[0111] Step D: After drying, cut the pieces, roll them up, inspect them, and form the core insulation layer 2.

[0112] Step E: The upper and lower outer nonwoven fabric layers are bonded and composited with the core insulation layer 2 in the coating production line to obtain a multilayer aerogel composite material. The upper and lower outer nonwoven fabric layers are referred to as nonwoven fabric surface layer 1 in the product.

[0113] Step F: The multilayer aerogel composite material is put into the production line using an "S-shaped double-thread chain stitch" sewing method. The sewing speed is adjusted to 1m / min, the equipment is started, and continuous sewing is performed to obtain an aerogel insulation component for hydraulic engineering.

[0114] The performance characteristics of the product obtained in this embodiment include:

[0115] The tensile strength reaches 0.35MPa, the normal tensile strength is 0.39MPa, and the interfacial bond strength is 0.33MPa. The mechanical properties meet the requirements of processing and hydraulic environment.

[0116] Even after folding the material 100 times, the weight retention rate can still reach 97%.

[0117] With a thermal conductivity of 0.003 W / m·K, it exhibits excellent thermal insulation performance.

[0118] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification and the foregoing description of this application are intended to cover non-exclusive inclusion.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

[0120] This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An aerogel-type hydraulic insulation component, characterized in that, It includes a non-woven fabric outer layer (1), a core insulation layer (2), and sewing thread (3); among which, The core insulation layer (2) is located between the two layers of the nonwoven fabric surface layer (1); The sewing thread (3) passes through and connects the two layers of the nonwoven fabric surface layer (1) and the core insulation layer (2).

2. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The core insulation layer (2) includes a core nonwoven fabric, which is a component made of at least one of polypropylene, nylon, polyester or chlorofiber.

3. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The sewing thread (3) is made of at least one of polypropylene, nylon, polyester or chlorofiber.

4. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The spacing between the sewing thread (3) is 10cm to 60cm.

5. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The apparent density of the nonwoven fabric surface layer (1) is 200 kg / m³. 3 ~300kg / m 3 The natural fluffy thickness is 0.3mm to 1.5mm.

6. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The core insulation layer (2) includes an adhesive and an aerogel, wherein the adhesive bonds the aerogel and the nonwoven fabric surface layer (1).

7. The aerogel-type hydraulic thermal insulation component according to claim 6, characterized in that, The core insulation layer (2) also includes a core nonwoven fabric, and the adhesive bonds the aerogel to the core nonwoven fabric. The adhesive includes an aqueous polyurethane emulsion.

8. The aerogel-type hydraulic thermal insulation component according to claim 7, characterized in that, The content of the aqueous polyurethane emulsion is between 10% and 30%, and the content of the aerogel is between 10% and 30%.

9. The aerogel-type hydraulic thermal insulation component according to claim 7, characterized in that, The aqueous polyurethane emulsion includes a one-component aqueous polyurethane emulsion.

10. The aerogel-type hydraulic thermal insulation component according to claim 1, characterized in that, The apparent density of the core insulation layer (2) is 10 g / m³. 3 ~20g / m 3 The natural fluffy texture has a thickness of 1mm to 5mm.

Images