Fire-resistant thermal-insulation energy-saving plate and preparation process thereof

Abstract

The invention relates to the technical field of thermal insulation type energy-saving plate preparation, and particularly discloses a fireproof thermal insulation type energy-saving plate which comprises a main body part, and the main body part comprises a thermal insulation layer, a flame-retardant layer and an aluminum foil layer bonded to the flame-retardant layer. The heat insulation layer is prepared from the following raw materials in parts by weight: 80-90 parts of a mixture of polyether polyol and isocyanate and 20-30 parts of diethyltoluenediamine; the flame-retardant layer comprises 75-80 parts of a mixed material of aluminum oxide, calcium phosphate and sodium silicate and 15-25 parts of an adhesive, and the component of the adhesive is an epoxy resin adhesive. The fireproof performance of the heat preservation type energy-saving plate can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of heat-insulating energy-saving board preparation, and in particular to a fire-resistant heat-insulating energy-saving board and a preparation process thereof. Background Art

[0003] Thermal insulation energy-saving panels refer to panels used for building insulation.

[0004] In the prior art, thermal insulation energy-saving panels are made of polystyrene resin as raw material, other raw and auxiliary materials and polymers, which are heated and mixed while injecting catalysts, and then extruded and pressed to form hard foam plastic boards. They have moisture-proof and waterproof properties, can reduce the thickness of the building structure, thereby increasing the indoor usable area, and are widely used in wall projects of hospitals, schools, office buildings, and residential buildings, mainly for indoor non-load-bearing walls and ceilings.

[0005] However, the thermal insulation and energy-saving panels with this structure have poor fire resistance, which has become a problem that needs to be solved urgently in the industry. Summary of the invention

[0006] The main purpose of the present invention is to provide a fire-resistant heat-insulating energy-saving board material, which at least solves the problem of poor fire-resistant performance of the heat-insulating energy-saving board material in the prior art.

[0007] According to one aspect of the present invention, there is provided a fire-resistant, heat-insulating, energy-saving board material, comprising a main body, the main body comprising a heat-insulating layer, a flame-retardant layer, and an aluminum foil layer bonded to the flame-retardant layer, wherein, by weight, the raw materials of the heat-insulating layer comprise 80-90 parts of a mixture of polyether polyol and isocyanate, and 20-30 parts of diethyltoluenediamine; the raw materials of the flame-retardant layer comprise 75-80 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 15-25 parts of an adhesive, wherein the adhesive component is an epoxy resin adhesive.

[0008] In a possible design, the ratio of the thickness of the thermal insulation layer to the thickness of the flame retardant layer is 4-5:1.

[0009] In a possible design, the raw materials of the thermal insulation layer include 80 parts of a mixture of polyether polyol and isocyanate and 20 parts of diethyltoluenediamine, and the raw materials of the flame retardant layer include 75 parts of a mixture of aluminum oxide, calcium phosphate and sodium silicate and 15 parts of an adhesive, calculated by weight.

[0010] In a possible design, the raw materials of the thermal insulation layer include 90 parts of a mixture of polyether polyol and isocyanate, and 30 parts of diethyltoluenediamine; the raw materials of the flame retardant layer include 80 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 25 parts of an adhesive, calculated by weight.

[0011] In a possible design, the raw materials of the thermal insulation layer include 84 parts of a mixture of polyether polyol and isocyanate, and 26 parts of diethyltoluenediamine, and the raw materials of the flame retardant layer include 75 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 20 parts of an adhesive, by weight.

[0012] In a possible design, the aluminum foil layer is an aluminum foil tape.

[0013] In a possible design, it also includes several groups of fire extinguishing units and an inorganic fireproof decorative panel located outside the aluminum foil layer, the fire extinguishing unit includes a first pipe and a second pipe, the first pipe and the second pipe are both buried in the insulation layer and the lower ends are bent to pass through the flame retardant layer to the aluminum foil layer, the first pipe and the second pipe are both sealed with paraffin blocks at the lower ends, a mixed solution of sodium bicarbonate and a foaming agent is placed in the first pipe, and an aluminum sulfate aqueous solution is placed in the second pipe, the bottom of the inorganic fireproof decorative panel is hinged to the main body, and the top of the inorganic fireproof decorative panel is fixed to the aluminum foil by a pull wire.

[0014] In a possible design, a reaction tank is provided on the back of the inorganic fireproof decorative plate facing the outlets of the first and second pipes, and a plurality of holes are provided on the inorganic fireproof decorative plate.

[0015] In a possible design, the main body also includes an outer frame closed around the thermal insulation layer, the flame retardant layer, and the aluminum foil layer, and the bottom of the inorganic fireproof decorative panel is hinged to the outer frame.

[0016] According to one aspect of the present invention, there is provided a process for preparing the fire-resistant heat-insulating energy-saving board as described above, comprising the following steps: Step S1, reacting polyether polyol and isocyanate to obtain a polyurethane prepolymer, adding diethyltoluenediamine to the polyurethane prepolymer, and injecting the mixture into a mold, polymerizing, aging, and demolding to form a thermal insulation layer; Step S2, mixing a mixed material containing aluminum oxide, calcium phosphate, and sodium silicate with an epoxy resin adhesive, coating the mixed material on the surface of the thermal insulation layer, and rolling and leveling the mixed material to form a flame retardant layer; Step S3, bonding the aluminum foil to the flame retardant layer to form an aluminum foil layer; Step S4, after the aluminum foil layer is formed, the semi-finished plate and the mold are placed at room temperature for 24-30 hours to obtain a fire-resistant, heat-insulating, energy-saving plate.

[0017] Compared with the prior art, the principles and effects of the present invention are as follows: (1) Compared with the prior art, the thermal insulation layer of the present invention has excellent fireproof, flame retardant and high temperature resistance properties. The provision of the flame retardant layer enables the entire board to have good high temperature resistance and flame retardant effect.

[0018] (2) The aluminum foil layer of the present invention has the following functions: first, the aluminum foil layer is a heat-reflecting material that can reflect up to 95% of infrared radiation, which enables the entire fire-resistant heat-insulating energy-saving board to always reflect heat well when the flame approaches, thereby preventing the entire fire-resistant heat-insulating energy-saving board from rapidly heating up due to infrared radiation; second, the aluminum foil layer itself has a certain thermal conductivity, and when the flame contacts it or conducts heat to a certain place through the air, it can better disperse the heat and avoid excessive local temperature or excessive temperature rise; third, it can improve the structural strength, integrity and waterproof and moisture-proof performance of the entire fire-resistant heat-insulating energy-saving board; (3) The epoxy resin base material of the present invention can also react with diethyltoluenediamine in the thermal insulation layer, which can not only accelerate the curing of the flame retardant layer, but also improve the adhesion between the flame retardant layer and the thermal insulation layer; (4) The technology of the present invention not only has high efficiency and good effect in preparing thermal insulation energy-saving panels, but also has high comprehensive benefits and is worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A side cross-sectional view of a fire-resistant, heat-insulating, energy-saving board material proposed in an embodiment of the present application is shown; Figure 2 A schematic diagram showing the swing of a decorative plate in a fire-resistant and heat-insulating energy-saving plate proposed in an embodiment of the present application is shown; Figure 3 A schematic diagram showing the swing of a decorative plate in a fire-resistant and heat-insulating energy-saving plate proposed in an embodiment of the present application is shown; Figure 4 A front view of a fire-resistant, heat-insulating, energy-saving board proposed in an embodiment of the present application is shown; Figure 5 Shows Figure 1 Enlarged view of part A. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] For ease of description, spatially relative terms such as "on", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature with other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the figure is inverted, the device described as "above other devices or structures" or "on top of other devices or structures" will be positioned as "below" or "below other devices or structures" afterwards.

[0024] Thus, the exemplary term "above" can encompass both an orientation of "above" and "below." The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0025] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0026] Description of reference numerals: Wall 1, thermal insulation layer 2, first pipeline 3, flame retardant layer 4, aluminum foil layer 5, inorganic fireproof decorative board 6, pull wire 7, outer frame 8, paraffin block 9, reaction tank 10.

[0027] According to an embodiment of the present invention, a fire-resistant and heat-insulating energy-saving board material is provided.

[0028] like Figure 1-Figure 5 As shown, the fire-resistant heat-insulating energy-saving board comprises: A fire-resistant heat-insulating energy-saving board comprises a main body, the main body comprises a heat-insulating layer 2, a flame-retardant layer 4 and an aluminum foil layer 5 bonded to the flame-retardant layer 4, and the raw materials of the heat-insulating layer 2 comprise 84 parts of a mixture of polyether polyol and isocyanate and 26 parts of diethyltoluenediamine by weight; in the preparation process of the heat-insulating layer 2, the raw materials have an excessive amount of isocyanate relative to the polyether polyol, and the heat-insulating layer 2 finally forms a hard polyurethane, which has the advantages of light weight, excellent sound insulation and heat insulation performance, chemical resistance, good electrical performance, and easy processing. The raw materials are mainly composed of three parts: polyol (polyether polyol in this embodiment), isocyanate and chain extender cross-linking agent (diethyltoluenediamine in this embodiment, so that the obtained product has good stability, tensile strength, heat resistance, etc.). In addition, sometimes certain functional additives need to be added to increase the reaction rate, improve processing performance and product performance, reduce costs, etc., which are not involved in this embodiment. Compared with the prior art, the thermal insulation layer 2 of the present invention has excellent fireproof, flame retardant and high temperature resistant properties. The raw materials of the flame retardant layer 4 include 75 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 20 parts of an adhesive. The adhesive component is an epoxy resin adhesive. The epoxy resin adhesive is a type of engineering adhesive prepared from an epoxy resin base material, a curing agent, a diluent, an accelerator, and a filler. It has good bonding performance, good functionality, a relatively low price, and a simple bonding process. It should be noted here that the epoxy resin base material can also react with the diethyltoluenediamine in the thermal insulation layer 2, which can not only accelerate the curing of the flame retardant layer 4, but also improve the flame retardant layer 4 and the thermal insulation layer 2. The bonding strength is preferably such that the mass ratio of alumina, calcium phosphate and sodium silicate in the mixed material is 6:1:1. Alumina is an inorganic flame retardant with excellent thermal stability and chemical stability, which can effectively reduce the combustion temperature and smoke density of the material, and can reduce the combustion temperature of the material by absorbing heat and insulating it. Calcium phosphate is an inorganic flame retardant with good thermal stability and flame retardant effect, and can suppress the spread of flame by generating compounds such as phosphate glass. Sodium silicate is an inorganic flame retardant with good high temperature resistance and flame retardant effect.

[0029] Preferably, the ratio of the thickness of the thermal insulation layer 2 to the thickness of the flame retardant layer 4 is 4-5:1, specifically 4.1:1 or 4.11:1 or 4.2:1 or 4.3:1 or 4.4:1 or 4.5:1 or 4.6:1 or 4.7:1 or 4.8:1 or 4.9:1 or 4.95:1 or 4.84:1 or 5:1 or any numerical ratio therebetween.

[0030] Preferably, the aluminum foil layer 5 is an aluminum foil tape, which adopts high-quality pressure-sensitive adhesive, has good viscosity, strong adhesion, anti-aging and other effects, and greatly improves the thermal insulation performance. The specifications have various widths and lengths (0.05mm-0.08mm). It is a decorative material applied in the form of aluminum-plastic composite, and utilizes the characteristics of good colorability and high light and heat reflectivity of aluminum foil. It has the advantages of heat insulation, moisture resistance, sound insulation, fire resistance and easy cleaning, and is easy to process and install. The aluminum foil layer 5 has three main functions. The first function is that the aluminum foil layer 5 is a heat-reflecting material that can reflect up to 95% of infrared radiation. This allows the entire fire-resistant, heat-insulating and energy-saving board to always be able to better reflect heat when the flame approaches, thereby preventing the entire fire-resistant, heat-insulating and energy-saving board from rapidly heating up due to infrared radiation. The second function is that the aluminum foil layer 5 itself also has a certain thermal conductivity. When the flame contacts it or conducts heat to a certain place through the air, etc., it can better disperse the heat and avoid local excessive temperature or excessive temperature rise. The third function is to improve the structural strength, integrity and waterproof and moisture-proof properties of the entire fire-resistant, heat-insulating and energy-saving board.

[0031] Preferably, Figure 1-3 As shown, the present invention also includes several groups of fire extinguishing units and an inorganic fireproof decorative plate 6 located outside the aluminum foil layer 5, the fire extinguishing unit includes a first pipe 3 and a second pipe, the first pipe 3 and the second pipe are both buried in the insulation layer 2 and the lower ends are bent to pass through the flame retardant layer 4 to the aluminum foil layer 5, the first pipe 3 and the second pipe are both sealed with a paraffin block 9 at the lower ends, a mixed solution of sodium bicarbonate and a foaming agent is placed in the first pipe 3, and an aluminum sulfate aqueous solution is placed in the second pipe. The mixed solution of sodium bicarbonate and the foaming agent and the aluminum sulfate aqueous solution react chemically after mixing to produce carbon dioxide gas foam, which expands 7 to 10 times in volume and can generally spray about 10m. Preferably, the amount ratio of sodium bicarbonate to aluminum sulfate is 6-7 to 1. Figure 1 , Figure 5As shown, the bottom of the inorganic fireproof decorative plate 6 is hinged to the main body, and the top of the inorganic fireproof decorative plate 6 is fixed to the aluminum foil by a pull wire 7, which plays a role similar to a fuse. Once the external force on the inorganic fireproof decorative plate 6 exceeds the design load of the pull wire 7, the pull wire 7 will be torn off, and the inorganic fireproof decorative plate 6 will be free from the restraint of the pull wire 7; preferably, a reaction tank 10 is provided at the back of the inorganic fireproof decorative plate 6 facing the first pipeline 3 and the outlet of the second pipeline, and a plurality of holes are provided on the inorganic fireproof decorative plate 6. It should be noted here that the first pipeline outlet and the second pipeline outlet are connected to each other. The two pipe openings can be both against or flush with the aluminum foil layer 5. In this embodiment, the first pipe opening and the second pipe opening are both flush with the aluminum foil layer 5. Paraffin wax, also known as crystalline wax, is usually a white, odorless waxy solid that melts at 47°C-64°C. When a fire occurs indoors, as the flame spreads to the vicinity of the wall 1, the flame contacts the decorative board and the aluminum foil layer 5, and the aluminum foil layer 5 and the decorative board gradually heat up, and the paraffin wax also heats up to melt. At this time, the mixed solution of sodium bicarbonate and the foaming agent in the first pipe 3 and the aluminum sulfate aqueous solution in the second pipe are respectively discharged from the first pipe 3 and the second pipe 3. The first pipe 3 and the second pipe flow out quickly into the space surrounded by the reaction tank 10 and the aluminum foil layer 5. The mixed solution of sodium bicarbonate and the foaming agent and the aluminum sulfate aqueous solution react chemically to produce carbon dioxide gas foam, which expands by 7 to 10 times in volume. Combined with the impact force when flowing out of the first pipe 3 and the second pipe, the pull wire 7 is torn off, and the decorative plate is pushed out and swings outward and downward until the upper end of the decorative plate is buckled on the ground, which not only plays a role in extinguishing the fire, but also the carbon dioxide gas foam flows out from the edge and holes of the decorative plate. While extinguishing the fire, an isolation zone is formed within 1x meters close to the wall. Here, x is approximately equal to the length from the hinged end to the free end of the decorative panel. It not only has the effect of extinguishing the fire, but also has the effect of extinguishing the fire. It should be noted that the setting of the first pipe 3 and the second pipe also improves the specific heat capacity of the entire plate, so that the heating rate of the entire plate will not be too fast. The first pipe 3 and the second pipe are made of stainless steel, which has good thermal conductivity. Not only is the performance stable and corrosion-resistant, but it will not react with the insulation layer 2 and the flame retardant layer 4 materials.

[0032] The fire-resistant, heat-insulating and energy-saving panel of the present invention is installed on the wall 1, and is installed in the lower half of the wall 1 as much as possible. This can prevent the decorative panel from being too long or too high. When swinging to play a role, it may be blocked by debris, resulting in the inability to complete the fire fighting and extinguishing action in time.

[0033] Preferably, the main body also includes an outer frame 8 closed on the periphery of the thermal insulation layer 2, the flame retardant layer 4, and the aluminum foil layer 5. The bottom of the inorganic fireproof decorative panel 6 is hinged to the outer frame. The outer frame 8 can be made of aluminum alloy. The outer frame 8 can also be used as a molding mold for the thermal insulation layer 2 and the flame retardant layer 4. This allows the outer frame 8 to be integrally formed with the thermal insulation layer 2, the flame retardant layer 4, and the aluminum foil layer 5, which is convenient and quick and has better combining performance.

[0034] Embodiment 2: The only difference from Example 1 is that, by mass, the raw materials for the thermal insulation layer include 80 parts of a mixture of polyether polyol and isocyanate, and 20 parts of diethyltoluenediamine, and the raw materials for the flame retardant layer include 75 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 15 parts of an adhesive.

[0035] Embodiment 3: The only difference from Example 1 is that, by mass, the raw materials for the thermal insulation layer include 90 parts of a mixture of polyether polyol and isocyanate, and 30 parts of diethyltoluenediamine; the raw materials for the flame retardant layer include 80 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 25 parts of an adhesive.

[0036] In at least one embodiment, a process for preparing the fire-resistant heat-insulating energy-saving board as described above is also provided, comprising the following steps: Step S1, reacting polyether polyol and isocyanate to obtain a polyurethane prepolymer, adding diethyltoluenediamine to the polyurethane prepolymer, and injecting the mixture into a mold, polymerizing, aging, and demolding to form a thermal insulation layer; Step S2, mixing a mixed material containing aluminum oxide, calcium phosphate, and sodium silicate with an epoxy resin adhesive, coating the mixed material on the surface of the thermal insulation layer, and rolling and leveling the mixed material to form a flame retardant layer; Step S3, bonding the aluminum foil to the flame retardant layer to form an aluminum foil layer; Step S4, after the aluminum foil layer is formed, the semi-finished board and the mold are placed at room temperature for 24-30 hours to obtain a fire-resistant heat-insulating energy-saving board. The heat-insulating layer and the flame-retardant layer must be placed for at least 24 hours to obtain better performance and complete curing.

[0037] Although the above methods are illustrated and described as a series of actions for simplicity of explanation, it should be understood and appreciated that these methods are not limited by the order of the actions, because according to one or more embodiments, some actions may occur in different orders and / or concurrently with other actions from the illustrations and descriptions herein or not illustrated and described herein but understandable to those skilled in the art. It will be further appreciated by those skilled in the art that the various illustrative logic blocks, modules, circuits, and algorithm steps described in conjunction with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or a combination of the two. To clearly explain this interchangeability of hardware and software, various illustrative components, frames, modules, circuits, and steps are generally described in the form of their functionality above. Whether such functionality is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system. The technical staff can implement the described functionality in different ways for each specific application, but such implementation decisions should not be interpreted as resulting in a departure from the scope of the present invention. Although the above methods are illustrated and described as a series of actions for simplicity of explanation, it should be understood and appreciated that these methods are not limited by the order of the actions, because according to one or more embodiments, some actions may occur in a different order and / or concurrently with other actions from those illustrated and described herein or not illustrated and described herein but understandable to those skilled in the art.

[0038] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A fire-resistant heat-insulating energy-saving board, characterized in that: The invention comprises a main body, which comprises a thermal insulation layer, a flame retardant layer and an aluminum foil layer bonded to the flame retardant layer. The raw materials of the thermal insulation layer comprise 80-90 parts of a mixture of polyether polyol and isocyanate and 20-30 parts of diethyltoluenediamine; the raw materials of the flame retardant layer comprise 75-80 parts of a mixture of aluminum oxide, calcium phosphate and sodium silicate and 15-25 parts of an adhesive, and the adhesive component is an epoxy resin adhesive.

2. The fire-resistant heat-insulating energy-saving board according to claim 1, characterized in that: The ratio of the thickness of the thermal insulation layer to the thickness of the flame retardant layer is 4-5:

1.

3. The fire-resistant heat-insulating energy-saving board according to claim 1 or 2, characterized in that: Calculated by weight, the raw materials of the thermal insulation layer include 80 parts of a mixture of polyether polyol and isocyanate, and 20 parts of diethyltoluenediamine; the raw materials of the flame retardant layer include 75 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 15 parts of an adhesive.

4. The fire-resistant heat-insulating energy-saving board according to claim 1 or 2, characterized in that: Calculated by weight, the raw materials of the thermal insulation layer include 90 parts of a mixture of polyether polyol and isocyanate, and 30 parts of diethyltoluenediamine; the raw materials of the flame retardant layer include 80 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 25 parts of an adhesive.

5. The fire-resistant heat-insulating energy-saving board according to claim 1 or 2, characterized in that: Calculated by weight, the raw materials of the thermal insulation layer include 84 parts of a mixture of polyether polyol and isocyanate, and 26 parts of diethyltoluenediamine; the raw materials of the flame retardant layer include 75 parts of a mixture of aluminum oxide, calcium phosphate, and sodium silicate, and 20 parts of an adhesive.

6. The fire-resistant heat-insulating energy-saving board according to claim 5, characterized in that: The aluminum foil layer is an aluminum foil tape.

7. The fire-resistant heat-insulating energy-saving board according to any one of claims 1, 2 or 6, characterized in that: It also includes several groups of fire extinguishing units and an inorganic fireproof decorative plate located outside the aluminum foil layer. The fire extinguishing unit includes a first pipe and a second pipe. The first pipe and the second pipe are both buried in the insulation layer and the lower ends are bent to pass through the flame retardant layer to the aluminum foil layer. The first pipe and the second pipe are both sealed with paraffin blocks at the lower ends. A mixed solution of sodium bicarbonate and a foaming agent is placed in the first pipe, and an aluminum sulfate aqueous solution is placed in the second pipe. The bottom of the inorganic fireproof decorative plate is hinged to the main body, and the top of the inorganic fireproof decorative plate is fixed to the aluminum foil by a pull wire.

8. The fire-resistant heat-insulating energy-saving board according to claim 7, characterized in that: A reaction tank is arranged at the back of the inorganic fireproof decorative plate facing the outlets of the first pipeline and the second pipeline, and a plurality of holes are arranged on the inorganic fireproof decorative plate.

9. The fire-resistant heat-insulating energy-saving board according to claim 7, characterized in that: The main body also includes an outer frame closed on the outer periphery of the thermal insulation layer, the flame retardant layer and the aluminum foil layer, and the bottom of the inorganic fireproof decorative board is hinged to the outer frame.

10. A process for preparing the fire-resistant heat-insulating energy-saving board as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1, reacting polyether polyol and isocyanate to obtain a polyurethane prepolymer, adding diethyltoluenediamine to the polyurethane prepolymer, and injecting the mixture into a mold, polymerizing, aging, and demolding to form a thermal insulation layer; Step S2, mixing a mixed material containing aluminum oxide, calcium phosphate, and sodium silicate with an epoxy resin adhesive, coating the mixed material on the surface of the thermal insulation layer, and rolling and leveling the mixed material to form a flame retardant layer; Step S3, bonding the aluminum foil to the flame retardant layer to form an aluminum foil layer; Step S4, after the aluminum foil layer is formed, the semi-finished plate and the mold are placed at room temperature for 24-30 hours to obtain a fire-resistant heat-insulating energy-saving plate.

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