Glue-free composite fireproof plate and fireproof structure

Abstract

The utility model provides a glue-free composite fireproof plate and a fireproof structure.The glue-free composite fireproof plate comprises a base plate, a fireproof core plate and a fireproof fiber layer, the fireproof core plate comprises a resin carbonization layer and a compact fire-resistant resin carbonization heat insulation layer, and the compact fire-resistant resin carbonization heat insulation layer and the resin carbonization layer are sequentially connected to one side of the base plate; the resin carbonization layer is embedded in the fireproof fiber layer, and an exposed surface is formed on the surface of the fireproof fiber layer. According to the glue-free composite fireproof plate, glue is prevented from being used among the compact fireproof resin carbonization heat insulation layer, the resin carbonization layer and the fireproof fiber layer, and the resin carbonization layer is embedded in the fireproof fiber layer and forms an exposed surface, so that the connection strength with the fireproof fiber layer is improved; the resin carbonization layer can be carbonized, expanded and bulged when the fireproof fiber layer is carbonized, expanded and bulged to form a light net-shaped fireproof and heat-insulating barrier, and the fireproof and heat-insulating performance of the glue-free composite fireproof plate is guaranteed by being matched with the compact fireproof resin carbonization heat-insulating layer for use.

Description

Technical Field

[0001] The present disclosure relates to the technical field of glue - free composite fire - proof boards, and particularly to a glue - free composite fire - proof board and a fire - proof structure. Background Art

[0002] The glue - free composite fire - proof board is composed of a variety of different functional materials through scientific proportioning and compounding. It not only retains the advantages of each component material but also overcomes the deficiencies of single materials. For example, Chinese Patent Document No. CN 110509627A discloses a lightweight flame - retardant fire - proof and heat - insulating composite board, which specifically discloses that it is composed of a surface decorative coating, a composite panel, an inorganic glue coating layer, and a fire - proof and heat - insulating core material to achieve its fire - proof and heat - insulating performance.

[0003] However, due to the relatively high hardness of the inorganic glue of the above - mentioned glue - free composite fire - proof board during use, the phenomenon of cracking at the bonding place is likely to occur. Therefore, a new type of glue - free composite fire - proof board has reappeared on the market. For example, Chinese Patent Document No. CN 204983465U discloses a polyurethane thermal - insulation composite board, which includes a substrate, a polyurethane thermal - insulation layer, a silicate thermal - insulation layer, a heat - reflective heat - insulation coating layer, an adsorption layer, and a metal decorative layer bonded in sequence; and the bonding between the layers of the polyurethane thermal - insulation composite board uses a polyurethane adhesive and is fixed by bolts. Thus, the above - mentioned polyurethane thermal - insulation composite board directly replaces the inorganic glue with an organic polyurethane adhesive, effectively solving the problem of cracking at the bonding place existing in the traditional use of inorganic glue.

[0004] However, in actual applications, most organic glues are generally thermoplastic glues. When a fire occurs, the organic glue will melt into a liquid state under the condition of heat, resulting in a reduction in its bonding performance and causing the layers of the glue - free composite fire - proof board to easily fall off. Summary of the Utility Model

[0005] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a glue - free composite fire - proof board and a fire - proof structure that improve the connection structure between the fire - proof fiber layer and the resin carbonization layer and simultaneously have high fire - proof and heat - insulating performance.

[0006] The purpose of the present disclosure is achieved through the following technical solutions:

[0007] A glue - free composite fire - proof board includes a substrate, a fire - proof core board, and a fire - proof fiber layer.

[0008] The fire - proof core board includes a resin carbonization layer and a dense refractory resin carbonization heat - insulation layer. The dense refractory resin carbonization heat - insulation layer and the resin carbonization layer are sequentially connected to one side of the substrate. The resin carbonization layer is embedded in the fire - proof fiber layer and forms an exposed surface on the surface of the fire - proof fiber layer.

[0009] In one embodiment, a plurality of ventilation holes are formed in the fireproof fiber layer, and a plurality of resin carbonization columns are formed on the resin carbonization layer facing the fireproof fiber layer. Each of the resin carbonization columns is embedded in each of the ventilation holes, and each of the resin carbonization columns forms the exposed surface on the surface of the fireproof fiber layer.

[0010] In one embodiment, at least a part of the resin carbonization column protrudes from the ventilation hole.

[0011] In one embodiment, the resin carbonization column is flush with the end of the ventilation hole.

[0012] In one embodiment, the ventilation holes are evenly distributed.

[0013] In one embodiment, the resin carbonization layer includes any one of a polyurethane resin carbonization layer, an unsaturated polyester resin carbonization layer, an epoxy resin carbonization layer, and a phenolic resin carbonization layer.

[0014] In one embodiment, the dense refractory resin carbonization heat insulation layer is an organosilicon-modified polyurethane carbonization heat insulation layer.

[0015] In one embodiment, the substrate is a metal plate.

[0016] In one embodiment, the fireproof fiber layer is a glass fiber layer or a basalt fiber layer; and / or,

[0017] the thickness of the substrate is 0.3 mm to 10 mm; and / or,

[0018] the thickness of the resin carbonization layer is 2 mm to 10 mm; and / or,

[0019] the thickness of the dense refractory resin carbonization heat insulation layer is 2 mm to 20 mm; and / or,

[0020] the thickness of the fireproof fiber layer is 0.1 mm to 10 mm.

[0021] A fireproof structure includes the glue-free composite fireproof board according to any one of the above embodiments.

[0022] Compared with the prior art, the present disclosure has at least the following advantages:

[0023] 1) Since the fireproof core board includes a resin carbonization layer and a dense refractory resin carbonization heat insulation layer, the dense refractory resin carbonization heat insulation layer can be crosslinked and fixed on the substrate, and the resin carbonization layer can be crosslinked and fixed on the dense refractory resin carbonization heat insulation layer, effectively avoiding the use of glue. Not only is the structure simple, but also the phenomenon that the glue-free composite fireproof board is prone to falling off during a fire due to the presence of thermoplastic glue is avoided.

[0024] 2) Since the resin carbonized layer is embedded in the fireproof fiber layer, the use of glue is effectively avoided, and the connection strength between the resin carbonized layer and the fireproof fiber layer is improved, effectively preventing the problem that the fireproof fiber layer is likely to fall off during a fire. Also, since the resin carbonized layer can form an exposed surface on the surface of the fireproof fiber layer, the resin carbonized layer can be heated first and start to withstand high-temperature ablation, and a lightweight net-shaped fire-blocking and heat-insulating barrier is formed when the fireproof fiber layer carbonizes and expands, so that the formed heat-insulating barrier can effectively isolate part of the temperature from entering the dense refractory resin carbonized heat-insulating layer, thereby reducing the temperature reaching the dense refractory resin carbonized heat-insulating layer. When the temperature continuously accumulates in the dense refractory resin carbonized heat-insulating layer, if the temperature of the dense refractory resin carbonized heat-insulating layer reaches the material cracking and carbonizing temperature, the dense refractory resin carbonized heat-insulating layer will absorb heat to form a stable and dense carbonized layer to reduce the heat transferred to the substrate, so that the resin carbonized layer and the dense refractory resin carbonized heat-insulating layer can form a progressive synergistic fireproof and temperature-reducing effect, which well ensures the fireproof and heat-insulating performance of the glue-free composite fireproof board. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present disclosure and should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0026] Figure 1 is a schematic structural diagram of a glue-free composite fireproof board in one direction according to an embodiment of the present invention;

[0027] Figure 2 is Figure 1 a sectional view in one direction of the shown glue-free composite fireproof board;

[0028] Figure 3 is a partial enlarged view of a glue-free composite fireproof board according to an embodiment of the present invention;

[0029] Figure 4 is Figure 3 the partial enlarged view shown at A in

[0030] Reference numerals: 10, glue-free composite fireproof board; 100, substrate; 200, fireproof core board; 210, resin carbonized layer; 211, resin carbonized column; 220, dense refractory resin carbonized heat-insulating layer; 300, fireproof fiber layer; 310, ventilation holes. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] To facilitate the understanding of the present disclosure, the present disclosure will be described more comprehensively below with reference to the relevant drawings. Preferred embodiments of the present disclosure are shown in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided so that the disclosure of the present disclosure can be understood more thoroughly and comprehensively.

[0032] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present disclosure belongs. The terms used in the specification of the present disclosure herein are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0034] To better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure will be further described in detail below with specific embodiments:

[0035] Please refer to Figures 1 to 3 , the glue-free composite fireproof board 10 of an embodiment includes a substrate 100, a fireproof core board 200 and a fireproof fiber layer 300. The fireproof core board 200 includes a resin carbonization layer 210 and a dense refractory resin carbonization heat insulation layer 220. The dense refractory resin carbonization heat insulation layer 220 and the resin carbonization layer 210 are sequentially connected to one side of the substrate 100. The resin carbonization layer 210 is embedded in the fireproof fiber layer 300 and forms an exposed surface on the surface of the fireproof fiber layer 300.

[0036] It can be understood that since the fireproof core board 200 includes a resin carbonization layer 210 and a dense refractory resin carbonization heat insulation layer 220, the dense refractory resin carbonization heat insulation layer 220 can be crosslinked and fixed on the substrate 100, and the resin carbonization layer 210 can be crosslinked and fixed on the dense refractory resin carbonization heat insulation layer 220, effectively avoiding the use of glue. Not only is the structure simple, but also the phenomenon that the glue-free composite fireproof board 10 is likely to fall off due to the inclusion of thermoplastic glue during a fire is avoided.

[0037] Furthermore, since the resin carbonized layer 210 is embedded in the fireproof fiber layer 300, the use of glue is effectively avoided, and the connection strength between the resin carbonized layer 210 and the fireproof fiber layer 300 is improved, effectively preventing the problem that the fireproof fiber layer 300 is likely to fall off during a fire. Also, since the resin carbonized layer 210 can form an exposed surface on the surface of the fireproof fiber layer 300, the resin carbonized layer 210 can be heated first and start to withstand high-temperature ablation, and a lightweight net-shaped fireproof and heat-insulating barrier is formed when the fireproof fiber layer 300 carbonizes and expands, so that the formed heat-insulating barrier can effectively isolate part of the temperature from entering the dense refractory resin carbonized heat-insulating layer 220, thereby reducing the temperature reaching the dense refractory resin carbonized heat-insulating layer 220. When the temperature continuously accumulates in the dense refractory resin carbonized heat-insulating layer 220, if the temperature of the dense refractory resin carbonized heat-insulating layer 220 reaches the material cracking and carbonizing temperature, the dense refractory resin carbonized heat-insulating layer 220 will absorb heat to form a stable and dense carbonized layer to reduce the heat transferred to the substrate 100, so that the resin carbonized layer 210 and the dense refractory resin carbonized heat-insulating layer 220 can form a progressive synergistic fireproof and temperature-reducing effect, which well guarantees the fireproof and heat-insulating performance of the glue-free composite fireproof board 10.

[0038] It should be noted that the molecules containing double bonds in the resin carbonized layer 210 are oxidized in the air, and after the double bonds are oxidized, the distance between molecules decreases, enhancing the interaction between the molecules in the resin carbonized layer 210, so that the resin carbonized layer 210 can be crosslinked and cured on the dense refractory resin carbonized heat-insulating layer 220 and the fireproof fiber layer 300 to achieve the connection and fixation of the resin carbonized layer 210, the dense refractory resin carbonized heat-insulating layer 220 and the fireproof fiber layer 300. Similarly, the dense refractory resin carbonized heat-insulating layer 220 containing double bonds can also be oxidized by the air, and at the same time, along with the crosslinking effect in the dense refractory resin carbonized heat-insulating layer 220, the dense refractory resin carbonized heat-insulating layer 220 can be crosslinked and fixed on the substrate 100, thus achieving the connection and fixation of the dense refractory resin carbonized heat-insulating layer 220 and the substrate 100.

[0039] In order to achieve the crosslinking and fixation of the resin carbonized layer 210. In one embodiment, the resin carbonized layer 210 includes any one of a polyurethane resin carbonized layer, an unsaturated polyester resin carbonized layer 210, an epoxy resin carbonized layer, and a phenolic resin carbonized layer, to ensure that the polyurethane carbonized layer, the unsaturated polyester resin carbonized layer, the epoxy resin carbonized layer, and the phenolic resin carbonized layer can undergo crosslinking reactions, and at the same time, to ensure that the resin carbonized layer 210 can form a lightweight net-shaped fireproof and heat-insulating barrier during a fire, effectively isolating part of the temperature from entering the dense refractory resin carbonized heat-insulating layer 220.

[0040] To achieve the crosslinking and fixation of the dense refractory resin carbonized thermal insulation layer 220. In one embodiment, the dense refractory resin carbonized thermal insulation layer 220 is a silicone-modified polyurethane carbonized thermal insulation layer. Since the hydroxyl groups on the silicon atoms in the silicone-modified polyurethane carbonized thermal insulation layer undergo condensation polymerization crosslinking to form a network structure, and the vinyl groups connected to the silicon atoms can undergo an addition reaction with the silicon-hydrogen bonds, the crosslinking and fixation of the dense refractory resin carbonized thermal insulation layer 220 are achieved, further improving the density of the silicone-modified polyurethane carbonized thermal insulation layer, which is beneficial for the silicone-modified polyurethane carbonized thermal insulation layer to form a dense carbonized layer when the temperature reaches the material pyrolysis and carbonization temperature, so as to reduce the heat transferred to the substrate 100. And because the silicone-modified polyurethane resin has characteristics such as high temperature resistance, weather resistance, and chemical resistance, the silicone-modified polyurethane resin can enhance the surface adhesion between the polyurethane, unsaturated polyester resin, epoxy resin, or phenolic resin in the resin carbonized layer 210, further improving the connection and fixation between the resin carbonized layer 210 and the dense refractory resin carbonized thermal insulation layer 220.

[0041] In a preferred embodiment, the silicone-modified polyurethane resin can be the silicone-modified polyurethane resin with the model number 2-5558 provided by Dow Corning Corporation. Of course, those skilled in the art can also select other existing silicone-modified polyurethane resin materials to ensure the formation of the dense refractory resin carbonized thermal insulation layer 220.

[0042] It is worth mentioning that the crosslinking reaction principle, material formula of the resin carbonized layer 210, and the crosslinking reaction principle, material formula of the dense refractory resin carbonized thermal insulation layer 220 both belong to the prior art and are not within the scope of protection not to be applied for. Therefore, the present disclosure only protects the connection relationship and positional relationship between the dense refractory resin carbonized thermal insulation layer 220 and the resin carbonized layer 210.

[0043] As Figure 4 shown, in one embodiment, a plurality of ventilation holes 310 are formed in the fireproof fiber layer 300, and a plurality of resin carbonized columns 211 are formed on the resin carbonized layer 210 facing the fireproof fiber layer 300. Each of the resin carbonized columns 211 is embedded in each of the ventilation holes 310, and each of the resin carbonized columns 211 forms the exposed surface on the surface of the fireproof fiber layer 300.

[0044] It can be understood that since the ventilation holes 310 are through holes, the resin carbonization columns 211 can come into contact with the outside air. When a fire occurs, the flame or temperature will first come into contact with the resin carbonization columns 211, causing the resin carbonization columns 211 to slowly carbonize and expand in the ventilation holes 310 under the condition of high-temperature ablation. As the combustion time lengthens, the flame or temperature will gradually reach the resin carbonization layer 210, causing the resin carbonization layer 210 to also burn, carbonize, and expand, and bulge in the carbonized and expanded fireproof fiber layer 300 to form a lightweight net-shaped fire and heat insulation barrier. The fireproof fiber layer 300 can better ensure the integrity of the resin carbonization layer 210 after combustion and carbonization, so as to ensure that the resin carbonization layer 210 can form a lightweight net-shaped fire and heat insulation barrier in the carbonized and expanded fireproof fiber layer 300, thereby effectively isolating part of the temperature from entering the dense refractory resin carbonization heat insulation layer 220, improving the fire and heat insulation performance of the glue-free composite fireproof board 10, and effectively preventing the resin carbonization layer 210 from being unable to form a net-shaped fire and heat insulation barrier due to the absence of the fireproof fiber layer 300 during a fire, resulting in the direct intrusion of temperature to erode the dense refractory resin carbonization heat insulation layer 220.

[0045] In one embodiment, at least part of the resin carbonization column 211 protrudes from the ventilation hole 310. On the one hand, the protruding resin carbonization column 211 can well improve the connection strength between the fireproof fiber layer 300 and the resin carbonization layer 210, effectively avoiding the problem that the fireproof fiber layer 300 and the resin carbonization layer 210 are likely to fall off when the glue-free composite fireproof board 10 catches fire; on the other hand, it increases the exposed area of the exposed surface, enabling the protruding resin carbonization column 211 to better inhibit the temperature and flame in the initial stage of the fire, thereby effectively suppressing the development speed of the fire in the initial stage.

[0046] In one embodiment, the resin carbonization column 211 is flush with the end of the ventilation hole 310, which preferably ensures the flatness of the glue-free composite fireproof board 10 and at the same time ensures a good connection strength between the fireproof fiber layer 300 and the resin carbonization layer 210.

[0047] In one embodiment, the ventilation holes 310 are evenly distributed, enabling each resin carbonization column 211 to be evenly embedded in the corresponding ventilation hole 310. On the one hand, it ensures a relatively uniform connection between the fireproof fiber layer 300 and the resin carbonization layer 210, thus ensuring that the fireproof fiber layer 300 and the resin carbonization layer 210 are not likely to fall off when a fire occurs; on the other hand, it enables the resin carbonization columns 211 after combustion to be evenly distributed on the fireproof fiber layer 300, which is beneficial to the subsequent formation of a lightweight net-shaped fire and heat insulation barrier on the fireproof fiber layer 300.

[0048] In one embodiment, the diameter of the ventilation holes 310 gradually decreases from the end close to the fireproof fiber layer 300 to the end far from the fireproof fiber layer 300. In this way, on the one hand, it better increases the exposed area of the exposed surface, thereby more effectively suppressing the development speed of a fire in the initial stage; on the other hand, it also improves the connection strength between the resin carbonization columns 211 and the fireproof fiber layer 300, effectively avoiding the problem that the fireproof fiber layer 300 and the resin carbonization layer 210 are prone to falling off during a fire.

[0049] In one embodiment, the substrate 100 is a metal plate. Since the metal plate has good structural strength and fire resistance, it can provide better support for the dense refractory resin carbonization heat insulation layer 220, and at the same time is conducive to the cross-linking and fixing of the dense refractory resin carbonization heat insulation layer 220, thus better ensuring the connection strength between the dense refractory resin carbonization heat insulation layer 220 and the metal plate. Specifically, the metal plate can be one of a galvanized plate and a stainless steel plate. Of course, those skilled in the art can select a suitable metal plate according to specific circumstances. Therefore, in the present disclosure, the material used for the metal plate is not limited.

[0050] In one embodiment, the fireproof fiber layer 300 is a glass fiber layer or a basalt fiber layer; since the glass fiber layer and the basalt fiber layer itself have ventilation holes 310, the uncured liquid resin carbonization layer 210 can penetrate into the ventilation holes 310. After the resin carbonization layer 210 undergoes cross-linking and curing, a plurality of resin carbonization columns 211 can be embedded in the ventilation holes 310, effectively avoiding the use of glue and improving the connection strength between the resin carbonization layer 210 and the fireproof fiber layer 300.

[0051] In order to prepare a lightweight and thin glue-free composite fireproof board 10, in one embodiment, the thickness of the substrate 100 is 0.3 mm to 10 mm to ensure that the substrate 100 is thin and light in weight. In one embodiment, the thickness of the resin carbonization layer 210 is 2 mm to 10 mm to ensure that the resin carbonization layer 210 is thin and light in weight. In one embodiment, the thickness of the dense refractory resin carbonization heat insulation layer 220 is 2 mm to 20 mm to ensure that the dense refractory resin carbonization heat insulation layer 220 is thin and light in weight. In one embodiment, the thickness of the fireproof fiber layer 300 is 0.1 mm to 10 mm to ensure that the resin carbonization layer 210 is thin and light in weight, especially in combination with the thickness of the substrate 100 being 0.3 mm to 10 mm, the thickness of the resin carbonization layer 210 being 2 mm to 10 mm, and the thickness of the dense refractory resin carbonization heat insulation layer 220 being 2 mm to 20 mm, which is conducive to preparing a lightweight and thin glue-free composite fireproof board 10.

[0052] The present disclosure also provides a fireproof structure, which includes the glue-free composite fireproof board 10 described in any of the above embodiments. It can be understood that when the glue-free composite fireproof board 10 of the present disclosure is applied to a building wall, the fireproof structure includes the wall and the glue-free composite fireproof board 10 to achieve the fireproof and heat-insulating performance of the wall and effectively avoid the problem that each layer of the glue-free composite fireproof board 10 is prone to falling during a fire.

[0053] It can also be understood that when the glue-free composite fireproof board 10 of the present disclosure is applied to an equipment housing, the fireproof structure includes a plurality of glue-free composite fireproof boards 10, and each glue-free composite fireproof board 10 is connected to form a closed equipment housing to achieve the fireproof and heat-insulating performance of each component inside the equipment housing and effectively avoid the problem that each layer of the glue-free composite fireproof board 10 is prone to falling during a fire.

[0054] Compared with the prior art, the present disclosure has at least the following advantages:

[0055] 1) Since the fireproof core board 200 includes a resin carbonization layer 210 and a dense refractory resin carbonization heat-insulating layer 220, the dense refractory resin carbonization heat-insulating layer 220 can be crosslinked and fixed on the substrate 100, and the resin carbonization layer 210 can be crosslinked and fixed on the dense refractory resin carbonization heat-insulating layer 220, effectively avoiding the use of glue. Not only is the structure simple, but also the phenomenon that the glue-free composite fireproof board 10 is prone to falling during a fire due to the presence of thermoplastic glue is avoided.

[0056] 2) Since the resin carbonization layer 210 is embedded in the fireproof fiber layer 300, the use of glue is effectively avoided, and the connection strength between the resin carbonization layer 210 and the fireproof fiber layer 300 is improved, effectively avoiding the problem that the fireproof fiber layer 300 is prone to falling during a fire; also, since the resin carbonization layer 210 can form an exposed surface on the surface of the fireproof fiber layer 300, the resin carbonization layer 210 can be heated first and start to withstand high-temperature ablation, and a light-weight network-shaped fire-blocking and heat-insulating barrier is formed when the fireproof fiber layer 300 carbonizes and expands, so that the formed heat-insulating barrier can effectively isolate part of the temperature from entering the dense refractory resin carbonization heat-insulating layer 220, thereby reducing the temperature reaching the dense refractory resin carbonization heat-insulating layer 220; when the temperature continuously accumulates in the dense refractory resin carbonization heat-insulating layer 220, if the temperature of the dense refractory resin carbonization heat-insulating layer 220 reaches the material cracking and carbonization temperature, the dense refractory resin carbonization heat-insulating layer 220 will absorb heat to form a stable and dense carbonization layer to reduce the heat transferred to the substrate 100, so that the resin carbonization layer 210 and the dense refractory resin carbonization heat-insulating layer 220 can form a progressive synergistic fireproof and temperature-reducing effect, well ensuring the fireproof and heat-insulating performance of the glue-free composite fireproof board 10.

[0057] The above-described embodiments merely represent several implementation manners of the present disclosure. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the disclosed patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure patent shall be subject to the appended claims.

Claims

1. A glue-free composite fireproof board, comprising a base plate, a fireproof core board and a fireproof fiber layer, characterized in that: The fireproof core board includes a resin carbonization layer and a dense fire-resistant resin carbonization insulation layer. The dense fire-resistant resin carbonization insulation layer and the resin carbonization layer are sequentially connected to one side of the base plate. The resin carbonization layer is embedded in the fireproof fiber layer and forms an exposed surface on the surface of the fireproof fiber layer.

2. The glue-free composite fireproof board according to claim 1, characterized in that: A plurality of air holes are formed in the fireproof fiber layer, and a plurality of resin carbonized columns are formed on the resin carbonized layer toward the fireproof fiber layer. Each of the resin carbonized columns is embedded in each of the air holes, and each of the resin carbonized columns forms the exposed surface on the surface of the fireproof fiber layer.

3. The glue-free composite fireproof board according to claim 2, characterized in that: The resin carbonization column at least partially protrudes out of the air hole.

4. The glue-free composite fireproof board according to claim 2, characterized in that: The resin carbonization column is flush with the end of the air hole.

5. The glue-free composite fireproof board according to claim 2, characterized in that: The air holes are evenly distributed.

6. The glue-free composite fireproof board according to claim 1, characterized in that: The resin carbonized layer includes any one of a polyurethane resin carbonized layer, an unsaturated polyester resin carbonized layer, an epoxy resin carbonized layer and a phenolic resin carbonized layer.

7. The glue-free composite fireproof board according to claim 1, characterized in that: The dense refractory resin carbonized heat-insulating layer is an organic silicon modified polyurethane carbonized heat-insulating layer.

8. The glue-free composite fireproof board according to claim 1, characterized in that: The substrate is a metal plate.

9. The glue-free composite fireproof board according to claim 1, characterized in that: The fireproof fiber layer is a glass fiber layer or a basalt fiber layer; and / or, The thickness of the substrate is 0.3 mm to 10 mm; and / or, The thickness of the resin carbonized layer is 2 mm to 10 mm; and / or, The thickness of the dense refractory resin carbonized heat insulation layer is 2 mm to 20 mm; and / or, The thickness of the fireproof fiber layer is 0.1 mm to 10 mm.

10. A fireproof structure, characterized in that: The invention comprises the glue-free composite fireproof board according to any one of claims 1 to 9.

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