An inorganic thermal insulation composite board
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]本实用新型提供一种无机保温复合板，用以解决现有技术中采用岩棉条对外墙进行外保温而存在的缺陷，实现降低无机部品的传热性能、提高其与墙体基材的拉伸粘结强度，且安装后外观平整美观
[0016]本实用新型提供的一种无机保温复合板，可用于低能耗墙体系统的构建以及既有墙体的节能改造。无机保温复合板的核心保温层主要包括无机纤维层和气凝胶毡层，其中的无机纤维层是以矿物质为原料制成的化学纤维，是经高温熔融经离心而产出的产物，具有一定的硬度、强度和较低的密度，可提高无机保温复合板的防火保温性能；改性气凝胶毡层是以纳米二氧化硅或金属类气凝胶为主体材料，通过特殊工艺同碳纤维或陶瓷玻璃纤维棉或预氧化纤维毡复合而成的柔性保温毡，气凝胶毡层导热系数低，有一定的抗拉强度，保证无机保温复合板具备低导热的性能基础上，使无机保温复合板具有较强的拉伸强度；同时气凝胶毡须进行表面改性，增强胶毡与纤维层的结合及防止气凝胶脱落。防水粘接层可进行防水防潮，长期使用条件下，无纤维塌落、吸潮现象，满足墙体耐久性要求。本实用新型的无机保温复合板的结构设计，可以保证无机保温复合板具有低导热性能，且具有优异的防火性能，与常用岩棉外墙外保温相比，在同一传热要求下，墙体外保温厚度减薄不小于25％，满足高效节能墙体的低传热、防火需求。
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Figure CN224634129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wall energy-saving technology, and in particular to an inorganic thermal insulation composite board. Background Technology
[0002] With the government's vigorous promotion of low-energy buildings, higher requirements are being placed on the fire safety, durability, ease of installation, and thermal performance of insulation components. Currently, the most commonly used inorganic insulation material for external walls is rock wool strips. By cutting the rock wool strips and attaching them to the external wall with vertical filaments, the tensile bond strength between the rock wool strips and the wall is improved to a certain extent.
[0003] Although rock wool strips can achieve good results in external wall insulation, they still have significant drawbacks. First, compared with other insulation materials, the tensile bonding strength of rock wool strips is relatively low, which places higher demands on the reliability of construction. Second, rock wool strips have a high thermal conductivity, and to meet the heat transfer coefficient requirements of ultra-low energy consumption walls, a thickness of 250-300mm is required. However, the bonding of thick rock wool strips can lead to the risk of insulation detachment. Third, the fibrous properties of rock wool strips also negatively affect the smoothness of the exterior surface, impacting the appearance and aesthetics of the building walls. Utility Model Content
[0004] This utility model provides an inorganic thermal insulation composite board to solve the defects of the existing technology that uses rock wool strips for external wall insulation. It reduces the heat transfer performance of inorganic components, improves their tensile bonding strength with the wall substrate, and has a flat and beautiful appearance after installation.
[0005] This utility model provides an inorganic thermal insulation composite board, comprising:
[0006] The core insulation layer comprises an inorganic fiber layer and a modified aerogel felt layer;
[0007] A waterproof adhesive layer is provided, which covers the outside of the core insulation layer.
[0008] According to the present invention, an inorganic thermal insulation composite board is provided, wherein a reinforcing layer is provided between the core thermal insulation layer and the waterproof adhesive layer to enhance the crack resistance of the inorganic thermal insulation composite board structure, that is, to enhance the bonding between the core thermal insulation layer and the waterproof layer.
[0009] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the modified aerogel felt layer is constructed as the middle layer of the core thermal insulation layer, the inorganic fiber layer is attached to both sides of the modified aerogel felt layer, and the inorganic fiber layer is constructed as the outer layer of the core thermal insulation layer; the reinforcing layer is located between the inorganic fiber layer and the waterproof adhesive layer.
[0010] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the inorganic fiber layer is an inorganic fiber cotton board with a thermal conductivity of not more than 0.036 W / (m·K); the modified aerogel felt layer is a nano-silica aerogel felt with a thermal conductivity of 0.015 to 0.030 W / (m·K), and its surface is modified to enhance the bonding with the inorganic fiber layer and prevent aerogel from falling off.
[0011] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the inorganic fiber layer is a rock wool board or a ceramic fiber cotton board.
[0012] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the reinforcing layer is an alkali-resistant glass fiber mesh.
[0013] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the waterproof adhesive layer is a waterproof plastering mortar, and the tensile bond strength between the waterproof plastering mortar and the inorganic fiber layer is not less than 0.1 MPa; the plastering working time of the waterproof plastering mortar is not more than 30 minutes, and the setting time is not more than 1 hour.
[0014] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the inorganic thermal insulation composite board is cross-quilted by twisted thread, and the quilted thread forms a series of micro-units that divide the inorganic thermal insulation composite board into multiple micro-units.
[0015] According to the present invention, an inorganic thermal insulation composite board is provided, wherein the twisted thread is basalt fiber twisted thread, and the twisted thread breaking strength of the quilted thread is not less than 0.4 N / tex.
[0016] This utility model provides an inorganic thermal insulation composite board that can be used for the construction of low-energy wall systems and the energy-saving renovation of existing walls. The core insulation layer of the inorganic thermal insulation composite board mainly includes an inorganic fiber layer and an aerogel felt layer. The inorganic fiber layer is a chemical fiber made from mineral raw materials, produced by high-temperature melting and centrifugation. It has a certain hardness, strength, and low density, which can improve the fireproof and thermal insulation performance of the inorganic thermal insulation composite board. The modified aerogel felt layer is a flexible thermal insulation felt made of nano-silica or metallic aerogel as the main material, combined with carbon fiber, ceramic glass fiber cotton, or pre-oxidized fiber felt through a special process. The aerogel felt layer has a low thermal conductivity and a certain tensile strength, ensuring that the inorganic thermal insulation composite board has high tensile strength while maintaining low thermal conductivity. Simultaneously, the aerogel felt must undergo surface modification to enhance the bonding between the felt and the fiber layer and prevent aerogel detachment. The waterproof adhesive layer provides waterproofing and moisture resistance. Under long-term use, there is no fiber collapse or moisture absorption, meeting the durability requirements of the wall. The structural design of the inorganic thermal insulation composite board of this utility model can ensure that the inorganic thermal insulation composite board has low thermal conductivity and excellent fire resistance. Compared with commonly used rock wool external wall insulation, under the same heat transfer requirements, the thickness of the external wall insulation is reduced by no less than 25%, which meets the low heat transfer and fire resistance requirements of high-efficiency energy-saving walls. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a cross-sectional structural diagram of the inorganic thermal insulation composite board provided by this utility model.
[0019] Figure 2 This is a schematic diagram of the external shape of the inorganic thermal insulation composite board provided by this utility model.
[0020] Reference numerals: 1. Core insulation layer; 11. Inorganic fiber layer; 12. Modified aerogel felt layer; 2. Waterproof adhesive layer; 3. Reinforcing layer; 4. Quilting thread. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0022] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element 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 the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.
[0024] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply 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 that the first feature is at a lower horizontal level than the second feature.
[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0026] The following is combined with Figure 1 and Figure 2 This invention describes the specific structure of the inorganic thermal insulation composite board.
[0027] One embodiment of this utility model provides an inorganic thermal insulation composite board, see [link]. Figure 1 As shown, it includes a core insulation layer 1 and a waterproof adhesive layer 2, wherein the core insulation layer 1 includes an inorganic fiber layer 11 and a modified aerogel felt layer 12; the waterproof adhesive layer 2 covers the outside of the core insulation layer 1.
[0028] It is understood that this inorganic thermal insulation composite board of this embodiment can be used for the construction of low-energy wall systems and the energy-saving renovation of existing walls. The core insulation layer 1 of the inorganic thermal insulation composite board mainly includes an inorganic fiber layer 11 and a modified aerogel felt layer 12. The inorganic fiber layer 11 is a chemical fiber made from mineral raw materials. It is a product produced by high-temperature melting and centrifugation, and has a certain hardness, strength and low density, which can improve the fireproof and heat insulation performance of the inorganic thermal insulation composite board. The modified aerogel felt layer 12 is a flexible thermal insulation felt made of nano-silica or metal aerogel as the main material, which is combined with carbon fiber or ceramic glass fiber cotton or pre-oxidized fiber felt through a special process. The modified aerogel felt layer 12 has a low thermal conductivity and a certain tensile strength, which ensures that the inorganic thermal insulation composite board has low thermal conductivity and strong tensile strength. At the same time, the surface modification of the felt enhances the bonding with the inorganic fiber layer and prevents aerogel from falling off. The waterproof adhesive layer 2 can be waterproof and moisture-proof. Under long-term use conditions, there is no fiber collapse or moisture absorption, which meets the durability requirements of the wall.
[0029] Through the structural design of the inorganic thermal insulation composite board in the above embodiments, it can be ensured that the inorganic thermal insulation composite board has low thermal conductivity and excellent fire resistance. Compared with commonly used rock wool external wall insulation, under the same heat transfer requirements, the external wall insulation thickness is reduced, meeting the low heat transfer and fire resistance requirements of high-efficiency energy-saving walls.
[0030] In some embodiments of the inorganic thermal insulation composite board provided by this utility model, a reinforcing layer 3 is provided between the core thermal insulation layer 1 and the waterproof adhesive layer 2 to reinforce and prevent cracking between the structural layers of the inorganic thermal insulation composite board. In some specific examples, the reinforcing layer 3 is an alkali-resistant glass fiber mesh. The alkali-resistant glass fiber mesh is a new type of alkali-resistant product made from medium-alkali or alkali-free glass fiber yarn woven into a glass fiber mesh as the substrate, and then coated with acrylic copolymer liquid and dried. The glass fiber mesh gives the reinforcing layer 3 structural stability, high strength, good alkali resistance, corrosion resistance, and crack resistance, resulting in optimal reinforcement. Furthermore, it is simple and easy to construct, providing interlayer structural reinforcement and crack prevention between the core thermal insulation layer and the waterproof adhesive layer.
[0031] In some specific examples of an inorganic thermal insulation composite board provided by this utility model, the modified aerogel felt layer 12 is constructed as the middle layer of the core thermal insulation layer 1, the inorganic fiber layer 11 is attached to both sides of the modified aerogel felt layer 12, and the inorganic fiber layer 11 is constructed as the outer layer of the core thermal insulation layer 1; the reinforcing layer 3 is located between the inorganic fiber layer 11 and the waterproof adhesive layer 2.
[0032] Understandably, in this example, the inorganic thermal insulation composite board consists of four parts: an inorganic fiber layer 11 as the core thermal insulation layer 1, a modified aerogel felt layer 12, a reinforcing layer 3, and a waterproof adhesive layer 2. The inorganic fiber layer 11 is an inorganic fiber cotton board with a thermal conductivity of no more than 0.036 W / (m·K); the modified aerogel felt layer 12 is a nano-silica aerogel felt with a thermal conductivity of 0.015 to 0.030 W / (m·K), and the surface of the felt is modified. The core insulation layer 1 is composed of inorganic fiber cotton board and nano-silica aerogel felt. After surface modification treatment, it has a good bond with the inorganic fiber layer and prevents aerogel from falling off. The nano-silica aerogel felt is in the middle layer of the core insulation layer 1, and the inorganic fiber cotton board is attached to both sides of the nano-silica aerogel felt. The inorganic fiber cotton board is rock wool board or ceramic fiber cotton board. The reinforcing layer 3 is alkali-resistant fiberglass mesh cloth, attached to the outside of the inorganic fiber cotton board. The outermost layer is waterproof adhesive layer 2, which covers the internal insulation components on all six sides.
[0033] In the structure of the inorganic thermal insulation composite board provided by this utility model, the waterproof adhesive layer 2 can be a non-woven fabric coated with an inorganic cementitious layer or a waterproof plastering mortar. In some specific embodiments, the waterproof adhesive layer 2 is a waterproof plastering mortar. The mortar used for the waterproof plastering mortar is waterproof mortar, also known as cationic chloroprene latex waterproof and anti-corrosion material. Cationic chloroprene latex is a polymer-modified polymer waterproof and anti-corrosion system. It is a polymer latex composed of epoxy resin modified latex, chloroprene rubber latex, polyacrylate, synthetic rubber, various emulsifiers, modified latex, etc., with the addition of base materials and appropriate chemical additives and fillers, and is made through plasticizing, mixing, calendering and other processes. The waterproof mortar has good weather resistance, durability, impermeability, density and extremely high adhesion, as well as extremely strong waterproof and anti-corrosion effects. It is formulated with ordinary cement and special cement to form cement mortar. Through mixing and pouring, spraying, or manual application, it forms a strong, waterproof, and corrosion-resistant mortar layer on concrete and its surface. It is a rigid-toughness waterproof and corrosion-resistant material. When mixed with cement and sand, it can modify the mortar for use in the treatment of building walls and floors, as well as in waterproofing layers for underground engineering projects.
[0034] In this embodiment, the tensile bond strength between the waterproof plastering mortar and the inorganic fiber layer 11 is not less than 0.1 MPa; the workable time for applying the waterproof plastering mortar is not more than 30 minutes, and the setting time is not more than 1 hour. The waterproof mortar is a semi-flexible waterproof material. By using polymers to improve the mortar's density and crack resistance, it achieves waterproofing and seepage prevention. In this embodiment, the waterproof plastering mortar forms a waterproof bonding layer 2 on the outside of the inorganic thermal insulation composite board. This not only enhances the tensile bond strength between the inorganic thermal insulation composite board and the wall but also forms a waterproof layer on the outside of the inorganic thermal insulation composite board. Under long-term use conditions, there is no fiber collapse or moisture absorption inside the inorganic thermal insulation composite board, meeting the wall's durability requirements. Moreover, the formation of the waterproof bonding layer 2 on the outside of the inorganic thermal insulation composite board by the waterproof plastering mortar ensures a smooth and aesthetically pleasing appearance after installation.
[0035] In some other embodiments of the inorganic thermal insulation composite board provided by this utility model, the inorganic thermal insulation composite board is cross-quilted by twisted threads, and the quilted lines 4 formed divide the inorganic thermal insulation composite board into multiple micro-units. See also Figure 2 As shown, for the inorganic thermal insulation composite board of this utility model, the modified nano-silica aerogel fiber felt (modified aerogel felt layer 12) and the low thermal conductivity inorganic fiber cotton board (inorganic fiber layer 11) are quilted and bound together with the fiberglass mesh (reinforcing layer 3) to form an integral whole. The outer surface is treated with waterproof plaster mortar (waterproof adhesive layer 2) for six-sided waterproofing, ultimately forming a composite material as shown in the figure. Figure 2The structure shown, through the transverse and longitudinal quilting binding of the inorganic thermal insulation composite board, ensures the stability of the internal layers of the inorganic thermal insulation composite board, further enhancing the tensile bonding strength of the inorganic thermal insulation composite board and guaranteeing the low thermal conductivity insulation and fire resistance of the internal layers. To ensure the structural stability of the inorganic thermal insulation composite board, the twisted thread used for quilting binding can be basalt fiber twisted thread, and the breaking strength of the twisted thread 4 is not less than 0.4 N / tex.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An inorganic thermal insulation composite board, characterized by, include: The core insulation layer (1) includes an inorganic fiber layer (11) and a modified aerogel felt layer (12); the modified aerogel felt layer (12) is constructed as the middle layer of the core insulation layer (1), the inorganic fiber layer (11) is attached to both sides of the modified aerogel felt layer (12), and the inorganic fiber layer (11) is constructed as the outer layer of the core insulation layer (1); Waterproof adhesive layer (2) is wrapped around the outside of the core insulation layer (1).
2. The inorganic thermal insulation composite board according to claim 1, characterized in that, A reinforcing layer (3) is provided between the core insulation layer (1) and the waterproof adhesive layer (2). The reinforcing layer (3) is located between the inorganic fiber layer (11) and the waterproof adhesive layer (2) to reinforce the structure of the inorganic insulation composite board against cracking.
3. The inorganic thermal insulation composite board according to claim 1, characterized in that, The inorganic fiber layer (11) is an inorganic fiber cotton board with a thermal conductivity of no more than 0.036 W / (m·K); the modified aerogel felt layer (12) is a nano-silica aerogel felt with a thermal conductivity of 0.015 to 0.030 W / (m·K). The surface of the modified aerogel felt layer (12) is modified to enhance the bonding between the modified aerogel felt layer (12) and the inorganic fiber layer (11) and to prevent aerogel from falling off.
4. The inorganic thermal insulation composite board according to claim 3, characterized in that, The inorganic fiber layer (11) is a rock wool board or a ceramic fiber cotton board.
5. The inorganic thermal insulation composite board according to claim 2, characterized in that, The reinforcing layer (3) is an alkali-resistant glass fiber mesh.
6. The inorganic thermal insulation composite board according to claim 1, characterized in that, The waterproof adhesive layer (2) is a waterproof plastering mortar, and the tensile bond strength between the waterproof plastering mortar and the inorganic fiber layer (11) is not less than 0.1 MPa; the plastering operation time of the waterproof plastering mortar is not more than 30 min, and the setting time is not more than 1 h.
7. The inorganic thermal insulation composite board according to any one of claims 1 to 6, characterized in that, The inorganic thermal insulation composite board is quilted by twisting threads, and the quilted lines (4) formed divide the inorganic thermal insulation composite board into multiple micro units.
8. The inorganic thermal insulation composite board according to claim 7, characterized in that, The twisted yarn is basalt fiber twisted yarn, and the twisted yarn breaking strength of the quilted yarn (4) is not less than 0.4 N / tex.