High-strength thermal-insulation connecting piece and preparation method thereof

Abstract

This invention discloses a high-strength thermal insulation connector and its preparation method, belonging to the field of building composite materials. The high-strength thermal insulation connector includes upper and lower anchoring layers and a thermal insulation layer between them. The thermal insulation layer is composed of a spacer fabric layer and a foam material. The spacer fabric layer is formed by connecting the upper and lower fabric layers through a spacer structure. The upper and lower anchoring layers are composed of upper and lower looped yarns interwoven with the upper and lower fabric layers, forming upper and lower looped structures. The preparation method of the high-strength thermal insulation connector involves separating the upper and lower looped structures from the spacer fabric layer using upper and lower heating plates, and adding the raw material to be foamed from the upper fabric layer down through the spacer structure to the lower fabric layer and then heating and foaming it. The upper and lower anchoring layers of the high-strength thermal insulation connector can be bonded to concrete or resin-based composite materials to obtain composite materials, significantly improving the tensile strength of the bonding interface.

Description

Technical Field

[0001] This invention belongs to the field of building composite materials, specifically relating to a high-strength thermal insulation connector and its preparation method. Background Technology

[0002] In high-temperature regions, ordinary reinforced concrete buildings, due to their poor thermal insulation, are prone to high indoor temperatures, requiring cooling measures to maintain a suitable environment. However, this inevitably leads to increased carbon emissions. Moreover, under such conditions, the building expands due to heat, easily causing deformation and cracks, exacerbating wall damage. This damage includes peeling and cracking of the outer layer, and in severe cases, it may even lead to structural failure, posing a threat to personnel safety.

[0003] Existing insulation materials, such as foamed concrete insulation boards and outer insulation layers, generally suffer from weak adhesion to the cement interface, affecting their performance, lifespan, and even the overall strength of the building, increasing maintenance costs. Patent CN103086740A discloses a three-dimensional spaced fabric-reinforced inorganic fireproof foam insulation board and its preparation method, which also suffers from poor interfacial adhesion. Patent CN202882282U discloses a three-dimensional hollow fabric composite board with a looped backing, where the connecting spacers on the upper and lower layers form coils. However, the looped threads in this method are prone to slippage, leading to overall structural instability. Furthermore, this composite board is only suitable for adhesion to the surface of an object, not for connecting two objects, and also suffers from insufficient interfacial strength when connecting two objects.

[0004] In addition, in the repair of building exterior surfaces, the repair materials used often fail to bond well with the original materials, and there are also problems with insufficient bonding strength for the assembly of components, which directly affects the use effect and overall performance of the building, making it difficult to achieve the ideal bonding form. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the present invention aims to provide a high-strength thermal insulation connector. The upper and lower anchoring layers of the high-strength thermal insulation connector can be connected and bonded to concrete or resin-based composite materials, respectively, significantly improving the tensile strength of the bonding interface. At the same time, it also solves the technical problem of low tensile strength of the interface bonding between resin-based composite materials and ordinary connecting materials. Using the high-strength thermal insulation connector can reduce the difficulty of engineering construction and improve construction efficiency and quality.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength heat-insulating connector, comprising upper and lower anchoring layers and a heat-insulating layer between the upper and lower anchoring layers; the heat-insulating layer is composed of a spacer fabric layer and a foam material composite, wherein the spacer fabric layer is formed by connecting the upper and lower fabric layers through a spacer structure, and the spacer structure is formed by spacer yarns interwoven with the upper and lower fabric layers simultaneously; the upper anchoring layer is composed of an upper loop structure formed by upper loop yarns interwoven with the upper fabric layer, and the lower anchoring layer is composed of a lower loop structure formed by lower loop yarns interwoven with the lower fabric layer.

[0007] Furthermore, the upper ring structure and the spacing structure are misaligned, and the lower ring structure and the spacing structure are also misaligned.

[0008] Furthermore, the warp density of the upper fabric layer is 30-70 threads / 100mm and the weft density is 20-60 threads / 100mm; the warp density of the lower fabric layer is 80-150 threads / 100mm and the weft density is 60-120 threads / 100mm.

[0009] Furthermore, the spacer yarn, upper loop yarn, and lower loop yarn are POM monofilaments or PET monofilaments; the warp and weft yarns of the upper and lower fabric layers are PVA filaments, POM filaments, or carbon filaments; and the foam material is polystyrene foam, polyurethane foam, or polyethylene foam.

[0010] A method for preparing the above-mentioned high-strength thermal insulation connector includes the following steps:

[0011] (1) The upper and lower fabric layers are connected by a spacer structure to form a spacer fabric layer, and the upper and lower loop yarns are interwoven with the upper and lower fabric layers to form an upper and lower loop structure, thus obtaining a three-dimensional fabric;

[0012] (2) Cover the surface of the lower heating plate with multiple holes with release material, and apply a layer of adhesive evenly to the surface of the release material; the lower fabric layer is attached to the side of the lower heating plate covered with adhesive and each lower ring structure passes through a hole in the lower heating plate. After completion, hot melt powder is applied to the area of ​​the lower fabric layer that is not covered with adhesive from the upper fabric layer down through the spacer structure.

[0013] (3) The material to be foamed is evenly covered from the upper fabric layer down through the spacer structure to the lower fabric layer;

[0014] (4) Cover the surface of the upper heating plate with multiple holes with release material. The side of the upper heating plate covered with release material is attached to the upper fabric layer and each upper loop structure passes through a hole in the upper heating plate. The transmission pipe connected to the upper heating plate is filled with foaming agent for foaming. After demolding, a high-strength heat-insulating connector is obtained.

[0015] Furthermore, the raw material to be foamed is polystyrene particles, polyurethane particles, or polyethylene particles.

[0016] Furthermore, the hot-melt powder is hot-melt vinyl ester powder, hot-melt polyester powder, or hot-melt polyurethane powder.

[0017] Furthermore, the release material is a polyimide release material or a polytetrafluoroethylene release material.

[0018] Furthermore, the adhesive is a polyurethane adhesive or an acrylic adhesive.

[0019] Furthermore, the foaming agent is water vapor, ammonium bicarbonate, or nitrogen.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] (1) The present invention uses a weaving process to integrally form the spacer structure and the loop structure in a staggered distribution. The spacer structure and the loop structure do not affect each other, the overall integrity of the connector is good, and the upper fabric layer is relatively loose, which makes the adhesive uniform and the foam material is filled evenly, resulting in good thermal insulation performance. At the same time, it increases the load-bearing capacity and stability of the overall structure and has good compressive strength. Due to the composite structure of the spacer fabric layer and the foam material, it has good flexibility and crack resistance, which can effectively resist external impact and vibration, improve durability and disaster resistance, and ensure personnel safety to a certain extent.

[0022] (2) The upper and lower anchoring layers of the connector of the present invention can penetrate into the interior of concrete or resin-based composite materials, and have high tensile strength at the interface with concrete or resin-based composite materials. It can also achieve good compatibility between different materials. This compatibility ensures good bonding between the high-strength thermal insulation connector and other materials, effectively connecting different objects and improving the performance of the overall structure. In addition, since the connector has high connection strength, it can also reduce stress concentration between materials, reduce fatigue damage and fracture risk of the structure.

[0023] (3) The high-strength heat-insulating connector is made by separating the upper and lower loop structures and the spacer fabric layer by the upper and lower heating plates, and by adding the raw material to be foamed to the lower fabric layer through the spacer structure from the upper fabric layer and heating to foam. This can ensure that the upper and lower loop structures are filled with no foam material to form the upper and lower anchoring layers, while effectively filling the spacer fabric layer of the three-dimensional fabric with foam material to form the heat insulation layer. This ensures the cleanliness of the upper and lower anchoring layers and greatly improves the connection effect of the high-strength heat-insulating connector. Attached Figure Description

[0024] Figure 1 This is a schematic side view of the high-strength thermal insulation connector in Example 1;

[0025] Figure 2 This is a top view illustrating the structure of the high-strength thermal insulation connector in Example 1;

[0026] Figure 3 This is a schematic diagram of the structure of the high-strength thermal insulation connector combined with the cement matrix in Example 1;

[0027] Among them, 1 is a high-strength thermal insulation connector, 2 is a cement matrix, 11 is a spacer fabric layer, 111 is an upper fabric layer, 112 is a lower fabric layer, 12 is a foam material, 13 is a spacer structure, 14 is a ring structure, 141 is an upper ring structure, and 142 is a lower ring structure. Detailed Implementation

[0028] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings. Example 1

[0029] The high-strength thermal insulation connector in this embodiment is manufactured by the following method:

[0030] (1) The upper and lower fabric layers are connected by a spacer structure using a weaving process to form a spacer fabric layer and the looper yarn is interwoven with the upper and lower fabric layers to form an upper and lower looper structure, resulting in a three-dimensional fabric of 200 mm × 60 mm × 20 mm; wherein, the spacer yarn, upper looper yarn, and lower looper yarn are POM monofilaments with a diameter of 0.4 mm, and the warp and weft yarns of the upper and lower fabric layers are POM filaments with a diameter of 0.2 mm; the warp density of the upper fabric layer is 40 threads / 100 mm, and the weft density is 60 threads / 100 mm; the warp density of the lower fabric layer is 80 threads / 100 mm, and the weft density is 60 threads / 100 mm.

[0031] (2) Cover the surface of the lower heating plate with multiple holes with polyimide release material, and evenly apply a layer of polyurethane adhesive with a thickness of 2mm on the surface of the polyimide release material; bond the lower fabric layer of the three-dimensional fabric obtained in step (1) with the polyurethane adhesive, with each lower loop structure corresponding to a hole in the lower heating plate, and then apply hot melt vinyl ester powder to the area of ​​the lower fabric layer that is not covered with polyurethane adhesive from the upper fabric layer down through the spacer structure.

[0032] (3) 0.015 g / mm is evenly applied to the lower fabric layer through the interstices from the upper fabric layer downwards. 3 Polystyrene granules;

[0033] (4) The surface of the upper heating plate with multiple holes is covered with polyimide release material. The side of the upper heating plate covered with polyimide release material is attached to the upper fabric layer. Each upper ring structure corresponds to a hole in the upper heating plate. A foaming agent is introduced into the conveying pipe connected to the upper heating plate for foaming treatment. After demolding, a high-strength heat-insulating connector is obtained. The foaming agent is water vapor. The foaming treatment method is to use a water vapor generator and convey it through the conveying pipe. Then, the upper and lower heating plates are heated to 90°C for 10 minutes to melt and expand the polystyrene particles. When the polystyrene foam expands to fill the spacer fabric layer of the three-dimensional fabric, the heating is stopped to obtain polystyrene foam. The volume ratio of polystyrene particles to water vapor is 10:1.

[0034] The upper and lower anchoring layers of the high-strength thermal insulation connector in this embodiment are respectively bonded to a cement matrix with a compressive strength of 32.5 MPa to obtain a composite material. The cement matrix is ​​formed by curing cement slurry, which is obtained by mixing deionized water and cement raw materials in a mass ratio of 1:4, and adding a water-reducing agent at a dosage of 1% of the mass of the cement slurry.

[0035] The structural schematic of the high-strength thermal insulation connector in this embodiment is shown below. Figure 1 As shown, the high-strength thermal insulation connector includes upper and lower anchoring layers and a thermal insulation layer between the upper and lower anchoring layers; the thermal insulation layer is composed of a spacer fabric layer 11 and a foam material 12. The spacer fabric layer 11 is formed by connecting the upper fabric layer 111 and the lower fabric layer 112 through a spacer structure 13; in the upper fabric layer 111, the upper warp yarns II and III are interwoven with the upper weft yarn I; in the lower fabric layer 112, the lower warp yarns IV and V are interwoven with the lower weft yarn VI; the spacer structure 13 is formed by the spacer yarn α interwoven with both the upper fabric layer 111 and the lower fabric layer 112; the upper anchoring layer is composed of an upper loop structure 141 formed by the upper loop yarn a interwoven with the upper fabric layer 111, and the lower anchoring layer is composed of a lower loop structure 142 formed by the lower loop yarn b interwoven with the lower fabric layer 112. Figure 2 This is a schematic top view of the high-strength thermal insulation connector in this embodiment, as shown below. Figure 2 As shown, vertical dashed lines represent warp yarns, and horizontal dashed lines represent weft yarns. In the smallest unit of the upper fabric layer, the ratio of upper warp yarns: upper loop yarns: upper warp yarns: spacer yarns is 3:1:3:1; in the smallest unit of the lower fabric layer, the ratio of lower warp yarns: upper loop yarns: lower warp yarns: spacer yarns is 3:1:3:1. The loop structure 14 and the spacer structure 13 are staggered. The loop structure 14 is the loop formed by the loop yarns on the fabric surface, and the spacer structure 13 is the spacer yarns interwoven with both the upper and lower fabric layers, located in the middle position between the upper and lower fabric layers. The schematic diagram of the high-strength thermal insulation connector combined with the cement matrix in this embodiment is shown below. Figure 3 As shown, the upper and lower anchoring layers of the high-strength thermal insulation connector 1 are bonded to the cement matrix 2, respectively. Example 2

[0036] The high-strength thermal insulation connector in this embodiment is manufactured by the following method:

[0037] (1) The upper and lower fabric layers are connected by a spacer structure using a weaving process to form a spacer fabric layer and the looper yarn is interwoven with the upper and lower fabric layers to form an upper and lower looper structure, resulting in a three-dimensional fabric of 200mm×50mm×15mm; wherein, the spacer yarn, upper looper yarn, and lower looper yarn are POM monofilaments with a diameter of 0.5mm, and the warp and weft yarns of the upper and lower fabric layers are POM filaments with a diameter of 0.15mm; the warp density of the upper fabric layer is 50 threads / 100mm, and the weft density is 30 threads / 100mm; the warp density of the lower fabric layer is 85 threads / 100mm, and the weft density is 70 threads / 100mm;

[0038] (2) Cover the surface of the lower heating plate with multiple holes with polyimide release material, and uniformly apply a layer of acrylic adhesive with a thickness of 3mm on the surface of the polyimide release material; bond the lower fabric layer of the three-dimensional fabric obtained in step (1) with polyurethane adhesive, each lower loop structure corresponding to a hole in the lower heating plate, and then from the upper fabric layer down through the spacer structure, cover the area of ​​the lower fabric layer that is not covered with polyurethane adhesive with hot melt vinyl ester powder.

[0039] (3) From the upper fabric layer down through the spacer structure, evenly cover the lower fabric layer with 0.05 g / mm. 3 Polyurethane particles;

[0040] (4) The surface of the upper heating plate with multiple holes is covered with polyimide release material. The side of the upper heating plate covered with polyimide release material is attached to the upper fabric layer. Each upper loop structure corresponds to a hole in the upper heating plate. The conveying pipe connected to the upper heating plate is passed through a foaming agent for foaming treatment. After demolding, a high-strength heat-insulating connector is obtained. The foaming agent is ammonium bicarbonate. The foaming treatment method is to convey sodium bicarbonate through the conveying pipe, and then heat the upper and lower heating plates at a temperature of 75°C for 8 minutes. The isocyanate in the polyurethane particles reacts with ammonium bicarbonate to produce gas. When the polyurethane expands to fill the spacer fabric layer of the three-dimensional fabric, the heating is stopped to obtain polyurethane foam. The mass ratio of polyurethane to ammonium bicarbonate is 1:1.

[0041] The upper and lower anchoring layers of the high-strength thermal insulation connector in this embodiment are respectively bonded to a cement matrix with a compressive strength of 32.5 MPa to obtain a composite material. The cement matrix is ​​formed by curing cement slurry, which is obtained by mixing deionized water and cement raw materials in a mass ratio of 1:4, and adding a water-reducing agent at a dosage of 1% of the mass of the cement slurry. Example 3

[0042] The high-strength thermal insulation connector in this embodiment is manufactured by the following method:

[0043] (1) The upper and lower fabric layers are connected by a spacer structure using a weaving process to form a spacer fabric layer and the looper yarn is interwoven with the upper and lower fabric layers to form an upper and lower looper structure, resulting in a three-dimensional fabric of 200 mm × 80 mm × 10 mm; wherein, the spacer yarn, upper looper yarn, and lower looper yarn are POM monofilaments with a diameter of 0.6 mm, and the warp and weft yarns of the upper and lower fabric layers are POM multifilaments with a diameter of 0.1 mm; the warp density of the upper fabric layer is 55 threads / 100 mm, and the weft density is 35 threads / 100 mm; the warp density of the lower fabric layer is 90 threads / 100 mm, and the weft density is 70 threads / 100 mm;

[0044] (2) Cover the surface of the lower heating plate with holes with polytetrafluoroethylene release material, and evenly apply a layer of acrylic adhesive with a thickness of 2.5 mm on the surface of the polytetrafluoroethylene release material; bond the lower fabric layer of the three-dimensional fabric obtained in step (1) with polyurethane adhesive, each lower loop structure corresponding to a hole in the lower heating plate, and then from the upper fabric layer down through the spacer structure, cover the area of ​​the lower fabric layer that is not covered with polyurethane adhesive with hot melt vinyl ester powder.

[0045] (3) 0.08 g / mm is evenly applied to the lower fabric layer from the upper fabric layer through the spacer structure. 3 Polyethylene granules;

[0046] (4) Cover the surface of the upper heating plate with holes with polyimide release material. The side of the upper heating plate covered with polytetrafluoroethylene release material is attached to the upper fabric layer. Each upper ring structure corresponds to a hole in the upper heating plate. The conveying pipe connected to the upper heating plate is passed through a foaming agent for foaming treatment. After demolding, a high-strength heat-insulating connector is obtained. The foaming agent is nitrogen. The foaming treatment method is to transmit nitrogen through the conveying pipe and then heat the upper and lower heating plates at a temperature of 85°C for 12 minutes. When the polyethylene expands to fill the spacer fabric layer of the three-dimensional fabric, the heating is stopped to obtain polyester fiber foam. The volume ratio of polyethylene particles to nitrogen is 12:1.

[0047] By connecting the upper and lower anchoring layers of the high-strength thermal insulation connector in this embodiment to two carbon fiber reinforced polyurethane resin materials, a composite material is obtained.

[0048] Comparative Example 1

[0049] The preparation method of the connector in this comparative example is the same as that of the high-strength heat-insulating connector in Example 1, except that there are no upper and lower anchoring layers.

[0050] The two sides of the connector in this comparative example are combined with a cement matrix with a compressive strength of 32.5 MPa to obtain a composite material. The cement matrix is ​​formed by curing cement slurry, which is made by mixing deionized water and cement raw materials in a mass ratio of 1:4, and adding a water-reducing agent at a dosage of 1% of the mass of the cement slurry.

[0051] Comparative Example 2

[0052] The preparation method of the connector in this comparative example is the same as that of the high-strength heat-insulating connector in Example 1, except that the warp density of the upper fabric layer is 80 threads / 100mm.

[0053] The upper and lower anchoring layers of the connector in this comparative example are combined with a cement matrix with a compressive strength of 32.5 MPa to obtain a composite material. The cement matrix is ​​formed by curing cement slurry, which is made by mixing deionized water and cement raw materials in a mass ratio of 1:4, and adding a water-reducing agent at a dosage of 1% of the mass of the cement slurry.

[0054] Comparative Example 3

[0055] The preparation method of the connector in this comparative example is the same as that of the high-strength heat-insulating connector in Example 1, except that the warp density of the upper fabric layer is 20 threads / 100mm.

[0056] The upper and lower anchoring layers of the connector in this comparative example are combined with a cement matrix with a compressive strength of 32.5 MPa to obtain a composite material. The cement matrix is ​​formed by curing cement slurry, which is made by mixing deionized water and cement raw materials in a mass ratio of 1:4, and adding a water-reducing agent at a dosage of 1% of the mass of the cement slurry.

[0057] The thermal conductivity, compressive strength, and interfacial tensile strength of the composite materials from Examples 1-3 and Comparative Examples 1-3 were tested in this invention, and the results are shown in Table 1. Thermal conductivity was tested according to GB / T 10294-2008 "Determination of Steady-State Thermal Resistance and Related Properties of Thermal Insulation Materials - Protective Hot Plate Method"; compressive strength was tested according to GB / T 11969-2008; and interfacial tensile strength was tested according to GB / T 3923.1-2013.

[0058] Table 1. Results of thermal conductivity, compressive strength, and interfacial tensile strength for the examples and comparative examples.

[0059] <![CDATA[Thermal conductivity / W·m -1 ·K -1 > Compressive strength / MPa Interfacial bonding tensile strength / MPa Example 1 0.035 23.50 3.05 Example 2 0.030 22.76 2.43 Example 3 0.028 23.23 2.28 Comparative Example 1 0.038 16.75 1.42 Comparative Example 2 0.045 22.38 2.06 Comparative Example 3 0.039 21.55 1.98

[0060] Compared with Comparative Example 1, Examples 1-3 have better compressive strength, better interfacial bonding tensile strength, and better thermal insulation performance.

[0061] Compared to Example 1, Comparative Example 2 suffers from poor uniformity of adhesive due to the overly dense structure of the upper fabric layer, resulting in uneven addition of polystyrene foam material and a decrease in thermal insulation performance. The increased number of ring structures is expected to increase the interfacial tensile strength, but it also increases the difficulty of the ring structures passing through the holes of the porous plate, which can easily lead to damage to the connectors. At the same time, too many ring structures can also affect the compressive strength of the cement matrix itself, thereby reducing the compressive strength and interfacial tensile strength of the entire composite material.

[0062] Compared to Example 1, Comparative Example 3, due to the overly loose structure of the upper fabric layer, had better adhesive uniformity and more foam material filling, which was expected to increase the thermal insulation performance. However, during the foaming process, the overly loose fabric structure made it easy for heat to escape from the holes of the upper heating plate, resulting in uneven foaming. Some areas of the foam material had no cells or very small cells, which increased the thermal conductivity and deteriorated the thermal insulation performance. In addition, although the difficulty of the loop structure passing through the holes of the perforated plate was reduced and the breakage of the connector was less likely to occur, the loose structure of the spacer fabric layer and the reduced number of loops resulted in decreased compressive strength and poorer interfacial bonding tensile strength.

[0063] The descriptions and practices disclosed in this invention are readily apparent and understandable to those skilled in the art, and various modifications and refinements can be made without departing from the principles of this invention. Therefore, any modifications or improvements made without departing from the spirit of this invention should also be considered within the scope of protection of this invention.

Claims

1. A high-strength thermal insulation connector, characterized in that, The high-strength thermal insulation connector comprises upper and lower anchoring layers and a thermal insulation layer between them. The thermal insulation layer is composed of a spacer fabric layer and a foam material. The spacer fabric layer is formed by connecting the upper and lower fabric layers via a spacer structure, which is formed by spacer yarns interwoven with both the upper and lower fabric layers. The upper anchoring layer consists of an upper loop structure formed by upper loop yarns interwoven with the upper fabric layer, and the lower anchoring layer consists of a lower loop structure formed by lower loop yarns interwoven with the lower fabric layer. The preparation method of the high-strength thermal insulation connector includes the following steps: (1) The upper and lower fabric layers are connected by a spacer structure to form a spacer fabric layer, and the upper and lower loop yarns are interwoven with the upper and lower fabric layers to form an upper and lower loop structure, thus obtaining a three-dimensional fabric; (2) Cover the surface of the lower heating plate with multiple holes with release material, and apply a layer of adhesive evenly to the surface of the release material; The lower fabric layer is bonded to the adhesive side of the lower heating plate, and each lower loop structure corresponds to a hole in the lower heating plate. After completion, hot melt powder is applied to the area of ​​the lower fabric layer that is not covered with adhesive from the upper fabric layer down through the spacer structure. (3) The material to be foamed is evenly covered from the upper fabric layer down through the spacer structure to the lower fabric layer; (4) Cover the surface of the upper heating plate with multiple holes with release material. The side of the upper heating plate covered with release material is attached to the upper fabric layer and each upper loop structure passes through a hole in the upper heating plate. The transmission pipe connected to the upper heating plate is filled with foaming agent for foaming. After demolding, a high-strength heat-insulating connector is obtained.

2. The high-strength thermal insulation connector according to claim 1, characterized in that, The upper ring structure and the spacing structure are misaligned, and the lower ring structure and the spacing structure are misaligned.

3. The high-strength thermal insulation connector according to claim 1, characterized in that, The upper fabric layer has a warp density of 30-70 threads / 100mm and a weft density of 20-60 threads / 100mm; the lower fabric layer has a warp density of 80-150 threads / 100mm and a weft density of 60-120 threads / 100mm.

4. The high-strength thermal insulation connector according to claim 1, characterized in that, The spacer yarn, upper loop yarn, and lower loop yarn are POM monofilaments or PET monofilaments; the warp and weft yarns of the upper and lower fabric layers are PVA filaments, POM filaments, or carbon filaments; the foam material is polystyrene foam, polyurethane foam, or polyethylene foam.

5. The high-strength thermal insulation connector according to claim 1, characterized in that, The raw material to be foamed is polystyrene particles, polyurethane particles, or polyethylene particles.

6. The high-strength thermal insulation connector according to claim 1, characterized in that, The hot-melt powder is hot-melt vinyl ester powder, hot-melt polyester powder, or hot-melt polyurethane powder.

7. The high-strength thermal insulation connector according to claim 1, characterized in that, The release material is either polyimide release material or polytetrafluoroethylene release material.

8. The high-strength thermal insulation connector according to claim 1, characterized in that, The adhesive is a polyurethane adhesive or an acrylic adhesive.

9. The high-strength thermal insulation connector according to claim 1, characterized in that, The foaming agent is water vapor, ammonium bicarbonate, or nitrogen.

Images