Composite fire-retardant insulation board with anti-cracking function

Abstract

This utility model discloses a crack-resistant composite flame-retardant insulation board, relating to the field of insulation board technology. The insulation board includes a substrate and several adhesive layers disposed on the substrate, as well as a crack-resistant protective layer, an insulation core layer, and a decorative surface layer. The substrate is made of calcium silicate board, and the adhesive layers are made of silicone-modified acrylic emulsion and fillers. This utility model, through its crack-resistant protective layer composed of a crack-resistant mortar layer and alkali-resistant fiberglass mesh, effectively resists stress, prevents crack formation and propagation, and improves the service life of the insulation board. The inorganic flame-retardant particles placed in the polyurethane foam of the insulation core layer effectively inhibit combustion and prevent the spread of fire when exposed to flame, thus improving building safety.

Description

Technical Field

[0001] This utility model relates to the field of insulation board technology, specifically to a composite flame-retardant insulation board with crack resistance. Background Technology

[0002] With the increasing demands for energy conservation in buildings, insulation boards are being used more and more widely in construction projects. Existing insulation boards have achieved certain results in terms of thermal insulation and flame retardant performance. However, in actual use, insulation boards are prone to cracking, which not only affects their aesthetics but also reduces their waterproof performance and shortens their service life. At the same time, the flame retardant effect of some insulation boards is not ideal, and they cannot effectively prevent the spread of fire in the event of a fire, threatening people's lives and property. Utility Model Content

[0003] This invention provides a composite flame-retardant insulation board with crack resistance, which has the advantages of strong crack resistance and good flame retardant effect, so as to solve the problems of existing insulation boards being prone to cracking and unable to effectively prevent the spread of fire.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant composite flame-retardant insulation board, comprising a substrate and several adhesive layers disposed on the substrate, and further comprising a crack-resistant protective layer, an insulation core layer, and a decorative surface layer, wherein:

[0005] The substrate material is calcium silicate board, and the adhesive layer material is silicone-modified acrylic emulsion and filler;

[0006] The crack-resistant protective layer includes a crack-resistant mortar layer, which is made of cement, quartz sand and polymer powder. The crack-resistant mortar layer is embedded with an outer crack-resistant cloth and an inner crack-resistant cloth, both of which are made of alkali-resistant fiberglass mesh.

[0007] The insulation core layer includes a polyurethane foam board, which has several fireproof partition grooves. Rock wool boards are embedded inside the fireproof partition grooves, and several honeycomb grooves are provided between the fireproof partition grooves. Flame-retardant particles are provided inside the honeycomb grooves.

[0008] In a preferred embodiment of this invention, the crack-resistant protective layer is bonded to the substrate via a first adhesive layer, and the crack-resistant protective layer is bonded to the thermal insulation core layer via a second adhesive layer. The flame-retardant particles are made of aluminum hydroxide.

[0009] As a preferred embodiment of this invention, the mesh lines of the outer anti-crack fabric are slightly thicker than those of the inner anti-crack fabric.

[0010] As a preferred embodiment of this utility model, a reinforcing skeleton is embedded inside the honeycomb groove, and the reinforcing skeleton is made of glass fiber reinforced plastic.

[0011] As a preferred embodiment of this utility model, a connector is provided between the thermal insulation core layer and the crack-resistant protective layer. One end of the connector is embedded in the crack-resistant mortar layer, and the other end is embedded between the honeycomb grooves. The connector is barbed.

[0012] As a preferred technical solution of this utility model, the outer surface of the decorative surface layer is provided with wall tile decorative patterns, and the decorative surface layer is sprayed with a fluorocarbon paint coating.

[0013] As a preferred technical solution of this utility model, the upper surface of the heat insulation core layer is provided with a dovetail groove, and the decorative surface layer is bonded to the dovetail groove by a third adhesive layer.

[0014] Compared with the prior art, this utility model provides a composite flame-retardant insulation board with crack resistance, which has the following beneficial effects: This utility model effectively resists stress and prevents cracks from being generated and expanding by using a crack-resistant mortar layer and an alkali-resistant fiberglass mesh cloth as the crack-resistant protective layer, thereby improving the service life of the insulation board; the inorganic flame-retardant particles placed in the polyurethane foam of the insulation core layer of the insulation board can effectively inhibit combustion when exposed to fire, prevent the spread of fire, and improve building safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a diagram showing the internal structure of the crack-resistant protective layer of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the thermal insulation core layer of this utility model;

[0018] Figure 4 This is a structural diagram of the decorative surface layer of this utility model.

[0019] In the diagram: 1. Substrate; 2. Adhesive layer; 3. Crack-resistant protective layer; 4. Thermal insulation core layer; 5. Decorative surface layer; 21. First adhesive layer; 22. Second adhesive layer; 23. Third adhesive layer; 31. Crack-resistant mortar layer; 32. Outer crack-resistant cloth; 33. Inner crack-resistant cloth; 34. Connector; 41. Polyurethane foam board; 42. Fireproof partition groove; 43. Rock wool board; 44. Honeycomb groove; 45. Flame-retardant particles; 46. Reinforcing skeleton; 47. Dovetail groove; 51. Decorative wall tile pattern. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0021] Please see Figures 1-4 This utility model discloses a crack-resistant composite flame-retardant insulation board, including a substrate 1 and several adhesive layers 2 disposed on the substrate 1, and also including a crack-resistant protective layer 3, an insulation core layer 4, and a decorative surface layer 5, wherein:

[0022] The substrate 1 is made of calcium silicate board, and the adhesive layer 2 is made of silicone-modified acrylic emulsion and filler.

[0023] Please refer to the appendix. Figure 2 The crack-resistant protective layer 3 includes a crack-resistant mortar layer 31. The crack-resistant mortar layer 31 is made of cement, quartz sand and polymer powder. The crack-resistant mortar layer 31 is inlaid with an outer crack-resistant cloth 32 and an inner crack-resistant cloth 33. The outer crack-resistant cloth 32 and the inner crack-resistant cloth 33 are both made of alkali-resistant fiberglass mesh.

[0024] Please refer to the appendix. Figure 3 The insulation core layer 4 includes a polyurethane foam board 41, which has several fireproof partition grooves 42. Rock wool boards 43 are embedded inside the fireproof partition grooves 42. Several honeycomb grooves 44 are provided between the fireproof partition grooves 42. Flame-retardant particles 45 are provided inside the honeycomb grooves 44. Specifically, the fireproof partition grooves 42 divide the insulation core layer 4 into multiple independent small areas. When a fire occurs, the inorganic material rock wool board 43 with excellent fire resistance can effectively prevent the spread of flames and heat in the insulation core layer and improve the flame-retardant performance of the insulation board.

[0025] The crack-resistant protective layer 3 is bonded to the substrate 1 through the first adhesive layer 21, and the crack-resistant protective layer 3 is bonded to the thermal insulation core layer 4 through the second adhesive layer 22. The flame-retardant particles 45 are made of aluminum hydroxide.

[0026] In this embodiment, the crack-resistant mortar layer 31 has good flexibility and crack resistance, which can effectively resist the stress caused by factors such as temperature changes and base layer deformation, and prevent the surface of the insulation board from cracking. The outer crack-resistant cloth 32 and the inner crack-resistant cloth 33 of the alkali-resistant fiberglass mesh material further enhance the strength and toughness of the insulation board. Its high-strength fibers in the warp and weft directions can disperse stress and prevent the expansion of cracks. Example 2

[0027] Based on the above embodiment 1, please refer to the appendix. Figure 2, Figure 3 The mesh lines of the outer anti-crack fabric 32 are slightly thicker than those of the inner anti-crack fabric 33.

[0028] The honeycomb groove 44 is fitted with a reinforcing skeleton 46, which is made of glass fiber reinforced plastic.

[0029] A connector 34 is provided between the thermal insulation core layer 4 and the crack-resistant protective layer 3. One end of the connector 34 is embedded in the crack-resistant mortar layer 31, and the other end is embedded between the honeycomb grooves 44. The connector 34 is barbed. Specifically, the barbed connector 34 can increase the connection friction and interlocking force between the thermal insulation core layer 4 and the crack-resistant protective layer 3, prevent relative sliding or separation between the two layers, and enhance the integrity and crack resistance of the insulation board.

[0030] The outer surface of the decorative layer 5 is provided with wall tile decorative patterns 51. The decorative layer 5 is sprayed with a fluorocarbon paint coating. Specifically, the fluorocarbon paint coating can resist the erosion of natural environmental factors such as ultraviolet rays and acid rain, and protect the insulation board from external damage.

[0031] The upper surface of the insulation core layer 4 is provided with a dovetail groove 47, and the decorative surface layer 5 is bonded to the dovetail groove 47 by the third adhesive layer 23. Specifically, the connection structure of the dovetail groove 47 allows the decorative surface layer 5 to be tightly embedded in the insulation core layer, thereby improving the connection strength of the interface.

[0032] In this embodiment, the slightly coarser outer anti-crack fabric 32 has higher strength and can resist greater external impact, while the finer inner anti-crack fabric 33 has better flexibility and can adapt to the slight deformation of the insulation board, further improving the crack resistance. The glass fiber reinforced plastic reinforcing skeleton 46 not only enhances the overall strength of the insulation core layer 4, but also disperses stress and effectively reduces crack formation when subjected to external impact. At the same time, the mesh structure can also provide stable placement points for the flame-retardant particles 45.

[0033] The working principle and usage process of this utility model are as follows: First, the crack-resistant mortar layer 31 in the crack-resistant protective layer 3 of the insulation board is made of cement, quartz sand, polymer powder and various additives. It has good flexibility and crack resistance, and can effectively resist the stress caused by temperature changes, base deformation and other factors, and prevent the surface of the insulation board from cracking. The outer crack-resistant cloth 32 and the inner crack-resistant cloth 33 of the alkali-resistant fiberglass mesh material further enhance the strength and toughness of the insulation board. Its high-strength fibers in the warp and weft directions can disperse stress and prevent the expansion of cracks.

[0034] The adhesive layer 2 is made of silicone-modified acrylic emulsion base material with the addition of various additives and fillers. This adhesive can firmly bond the crack-resistant protective layer to the thermal insulation core layer and the thermal insulation core layer to the decorative surface layer, ensuring the synergistic work between the layers. At the same time, the introduction of silicone improves the weather resistance and waterproof performance of the adhesive.

[0035] The polyurethane foam board 41 of the insulation core layer 4 has an extremely low thermal conductivity and excellent thermal insulation performance. The flame-retardant particles 45 in the honeycomb groove 44 are made of aluminum hydroxide. When a fire occurs, the flame-retardant particles 45 decompose when heated, absorb heat and release non-combustible gases, thereby inhibiting the combustion of polyurethane foam and improving the flame-retardant performance of the insulation board.

Claims

1. A crack-resistant composite flame-retardant insulation board, comprising a substrate (1) and a plurality of adhesive layers (2) disposed on the substrate (1), characterized in that, It also includes a crack-resistant protective layer (3), a thermal insulation core layer (4), and a decorative surface layer (5), wherein: The substrate (1) is made of calcium silicate board, and the crack-resistant protective layer (3) includes a crack-resistant mortar layer (31). The crack-resistant mortar layer (31) is inlaid with an outer crack-resistant cloth (32) and an inner crack-resistant cloth (33). The outer crack-resistant cloth (32) and the inner crack-resistant cloth (33) are both made of alkali-resistant fiberglass mesh. The insulation core layer (4) includes a polyurethane foam board (41), which has several fireproof partition grooves (42) on it. Rock wool board (43) is embedded in the inner side of the fireproof partition groove (42). Several honeycomb grooves (44) are provided between the fireproof partition grooves (42), and flame-retardant particles (45) are provided inside the honeycomb grooves (44).

2. The composite flame-retardant insulation board with crack resistance according to claim 1, characterized in that: The crack-resistant protective layer (3) is bonded to the substrate (1) through the first adhesive layer (21), and the crack-resistant protective layer (3) is bonded to the heat-insulating core layer (4) through the second adhesive layer (22). The flame-retardant particles (45) are made of aluminum hydroxide.

3. The composite flame-retardant insulation board with crack resistance according to claim 2, characterized in that: The mesh lines of the outer anti-crack fabric (32) are slightly thicker than those of the inner anti-crack fabric (33).

4. The composite flame-retardant insulation board with crack resistance according to claim 3, characterized in that: The honeycomb groove (44) is fitted with a reinforcing skeleton (46), which is made of glass fiber reinforced plastic.

5. The composite flame-retardant insulation board with crack resistance according to claim 4, characterized in that: A connector (34) is provided between the thermal insulation core layer (4) and the crack-resistant protective layer (3). One end of the connector (34) is embedded in the crack-resistant mortar layer (31), and the other end is embedded between the honeycomb grooves (44). The connector (34) is barbed.

6. The composite flame-retardant insulation board with crack resistance according to claim 1, characterized in that: The outer surface of the decorative surface layer (5) is provided with wall brick decorative patterns (51), and the decorative surface layer (5) is sprayed with a fluorocarbon paint coating.

7. The composite flame-retardant insulation board with crack resistance according to claim 1, characterized in that: The upper surface of the thermal insulation core layer (4) is provided with a dovetail groove (47), and the decorative surface layer (5) is bonded to the dovetail groove (47) by a third adhesive layer (23).

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