Composite material plate

Abstract

The utility model provides a composite material plate. The composite material plate sequentially comprises a first heat insulation layer, a central structure layer and a second heat insulation layer from top to bottom, the central structure layer sequentially comprises a first flame-retardant layer, a supporting layer and a second flame-retardant layer from top to bottom; the supporting layer is integrally formed and comprises a thin plate and a plurality of supporting pieces distributed at intervals. The supporting piece is of a vertical hollow cavity structure formed by plastic uptake of a thin plate. According to the utility model, the central structure layer is arranged, and the central structure layer forms the hollow supporting part through the first flame-retardant layer, the supporting layer and the second flame-retardant layer, so that the supporting, heat insulation and heat preservation performance of the composite material plate can be improved.

Description

Technical Field

[0001] The utility model relates to a material plate, in particular to a composite material plate. Background Art

[0002] As the global climate warms, buildings are gradually being insulated and heat-preserved. Insulation refers to the physical process in which, when heat is transferred from a higher temperature space to a lower temperature space and convected, the temperature change per unit space becomes smaller due to the change in the conduction medium, thereby blocking heat conduction. Insulation is usually achieved using insulation materials, and the most commonly used insulation material is insulation blankets.

[0003] Thermal insulation blanket is a blanket-like product with heat preservation and thermal insulation functions, which is mainly made of inorganic metal or non-metallic materials. There are many types of thermal insulation blankets, including alumina fiber blankets, glass fiber thermal insulation blankets, aluminum thermal insulation blankets, etc. Among them, aluminum thermal insulation blankets are widely used due to their excellent waterproof, heat insulation and thermal insulation properties. The outer layer of aluminum thermal insulation blankets is made of alloy aluminum film, and the inner layer is made of thermal insulation protection materials.

[0004] At present, in building construction, waterproof coiled materials are generally required to be installed on aluminum insulation blankets. Chinese patent CN111907152A discloses a bubble aluminum insulation blanket, which includes a first insulation layer, n bubble layers, and a second insulation layer from top to bottom, where n≥1. The aluminum insulation blanket is a soft material, lacks surface support performance in a water-bearing state, and is difficult to construct and operate. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a composite material plate to solve the problem of poor surface supporting performance of aluminum insulation blanket.

[0006] To achieve the above-mentioned purpose and other related purposes, the utility model provides a composite material board, which comprises a first heat insulation layer, a central structure layer and a second heat insulation layer from top to bottom; the central structure layer comprises a first flame retardant layer, a support layer and a second flame retardant layer from top to bottom; the support layer is integrally formed, including a thin plate and a plurality of support members distributed at intervals; the support member is a vertical hollow cavity structure formed by the thin plate by vacuum forming.

[0007] In some preferred embodiments, the supports are evenly spaced apart.

[0008] In some specific embodiments, the support member is in any one of a cylindrical, prism, and pyramidal shape.

[0009] In some specific embodiments, a heat insulating material is filled between two adjacent support members; the heat insulating material is selected from any one or more of polypropylene foam material, polystyrene foam material, polyurethane foam material, aerogel, aluminum silicate, and silicon-based foam material.

[0010] In some preferred embodiments, the upper surface of the support layer is hot-melt bonded to the first flame retardant layer;

[0011] And / or, the lower surface of the support layer is hot-melt bonded to the second flame-retardant layer.

[0012] In some preferred embodiments, the upper surface of the central structural layer is bonded to the first thermal insulation layer;

[0013] And / or, the lower surface of the central structural layer is bonded to the second thermal insulation layer.

[0014] In some specific embodiments, the first flame retardant layer is selected from any one of a flame retardant fiber-reinforced polypropylene sheet and a flame retardant fiber-reinforced polyvinyl chloride sheet;

[0015] And / or, the second flame retardant layer is selected from any one of a flame retardant fiber-reinforced polypropylene sheet and a flame retardant fiber-reinforced polyvinyl chloride sheet.

[0016] In some preferred embodiments, the first heat-insulating layer is an aluminum foil, and the emissivity of the aluminum foil is 95-99%.

[0017] In some preferred embodiments, the second heat-insulating layer is an aluminum foil, and the emissivity of the aluminum foil is 95-99%.

[0018] In some specific embodiments, the thickness ratio of the first flame retardant layer, the support layer, and the second flame retardant layer is (0.8-1):(4-4.5):(0.8-1).

[0019] As described above, the composite material board of the utility model has the following beneficial effects:

[0020] (1) The utility model sets a central structural layer, which is composed of a first flame retardant layer, a support layer, and a second flame retardant layer from top to bottom. The setting of the support layer is convenient for cooperating with the first flame retardant layer and the second flame retardant layer to improve the supporting effect of the central structural layer. The air layer formed between the support layer and the first flame retardant layer and the second flame retardant layer is convenient for further reducing the heat conduction rate, thereby improving the heat insulation and thermal insulation performance of the composite material board;

[0021] (2) The composite material board of the utility model is convenient for later transportation, lifting and installation;

[0022] (3) The heat insulating material disposed between two adjacent support members in the present invention is convenient for further improving the heat insulating and thermal insulation effect of the central structural layer, thereby improving the heat insulating and thermal insulation effect of the composite material board. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Shown is a schematic diagram of the overall structure of the composite material board of the present utility model.

[0024] Figure 2 Shown is a schematic diagram of an explosion of a composite material plate of the present invention.

[0025] Figure 3 Shown is a schematic structural diagram of a composite material board support layer of the present invention.

[0026] Figure 1-3 The accompanying drawings are denoted as follows:

[0027] 1. First heat insulation layer; 2. Second heat insulation layer; 3. Central structural layer; 31. First flame retardant layer; 32. Second flame retardant layer; 33. Support layer; 331. Thin plate; 332. Support member. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0029] See also Figures 1 to 3 It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the utility model, and the drawings only show the components related to the utility model rather than the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0030] See also Figure 1-3 , the utility model provides a composite material plate.

[0031] See also Figure 1 and Figure 2A composite material board comprises, from top to bottom, a first thermal insulation layer 1, a central structure layer 3 and a second thermal insulation layer 2; the central structure layer 3 comprises, from top to bottom, a first flame retardant layer 31, a supporting layer 33 and a second flame retardant layer 32; the supporting layer 33 is convenient for forming a supporting structure of the composite material board; the arrangement of the first thermal insulation layer 1 and the second thermal insulation layer 2 is convenient for increasing the thermal insulation performance of the composite material board; the arrangement of the first flame retardant layer 31 and the second flame retardant layer 32 is convenient for improving the flame retardancy of the composite material board.

[0032] In some embodiments of the present invention, Figure 2 As shown, the central structure layer 3 is bonded to the first insulation layer 1 and the second insulation layer 2; the adhesive used for bonding is fireproof structural adhesive; the fireproof structural adhesive is commercially available; the upper surface of the central structure layer 3 is bonded to the first insulation layer 1; the lower surface of the central structure layer 3 is bonded to the second insulation layer 2, the first insulation layer 1 is aluminum foil, the emissivity of the aluminum foil is 95-99%, specifically, the emissivity of the aluminum foil is 99%; the second insulation layer 2 is aluminum foil, the emissivity of the aluminum foil is 95-99%, specifically, the emissivity of the aluminum foil is 99%. The first insulation layer 1 and the second insulation layer 2 are convenient for reflecting radiant heat, forming a reflective cavity, which helps to block the reflection of thermal radiation, block the transmission path of heat, and provide thermal insulation of the composite material board. Aluminum foil is a metal material, and its surface reacts quickly to changes in room temperature, which can reduce surface condensation.

[0033] In some embodiments of the present invention, Figure 2 As shown, the central structure layer 3 is formed by hot-melt bonding of the first flame-retardant layer 31, the support layer 33, and the second flame-retardant layer 32, as an integral support cavity; the upper surface of the support layer 33 is hot-melt bonded to the first flame-retardant layer 31; the lower surface of the support layer 33 is hot-melt bonded to the second flame-retardant layer 32. The first flame-retardant layer 31 is selected from any one of flame-retardant fiber-added polypropylene sheet and flame-retardant fiber-added polyvinyl chloride sheet, specifically flame-retardant fiber-added polyvinyl chloride sheet; the second flame-retardant layer 32 is selected from any one of flame-retardant fiber-added polypropylene sheet and flame-retardant fiber-added polyvinyl chloride sheet, specifically flame-retardant fiber-added polyvinyl chloride sheet, and the flame-retardant fiber-added polyvinyl chloride sheet is a flame-retardant fiber-added polyvinyl chloride mixed material extruded into a cast film; the flame-retardant fiber-added polyvinyl chloride has good waterproof performance, which is convenient for providing the first flame-retardant layer 31 with waterproofness, thereby improving the waterproofness of the central structure layer 3. At the same time, the flame-retardant fiber-added polyvinyl chloride contains fibers, which is convenient for cooperating with the support layer 33 to further improve the strength of the central structure layer 3. The thickness ratio of the first flame retardant layer 31, the support layer 33, and the second flame retardant layer 32 is (0.8-1):(4-4.5):(0.8-1), specifically 0.8:4.5:0.8. The thickness ratio of the first flame retardant layer 31, the support layer 33, and the second flame retardant layer 32 is adjusted to take into account the three aspects of cost, heat preservation, and support, thereby better playing the role of the central structural layer 3 in the composite material board.

[0034] In some embodiments of the present invention, Figure 2-3 As shown, the support layer 33 is integrally formed, including a thin plate 331 and a plurality of support members 332 distributed at intervals. The support member 332 is a vertical hollow cavity structure formed by the thin plate 331 by vacuum forming. Specifically, after the mixed material is extruded into a cast film, it is formed into a vacuum forming cavity by a vacuum forming roller. The support member 332 is not penetrated at one end toward the first flame retardant layer 31, but penetrated toward the side of the thin plate 331. The support members 332 are evenly spaced and arranged; the height ratio of the thin plate 331 to the support member 332 is 1:3.5; the height ratio of the thin plate 331 to the support member 332 is adjusted to further improve the support performance of the support layer 33. The support layer 33 is formed into a hollow layer by the support member 332 and the thin plate 331; the support member 332 is a cavity structure, which is convenient for further reducing the heat conduction rate. Two adjacent support members 332 are spaced to form an air layer, and air is used as the conduction medium, which is convenient for further reducing the heat conduction rate.

[0035] In some embodiments of the present invention, Figure 2-3 As shown, a plurality of support members 332 are arranged evenly at intervals. The support members 332 arranged evenly at intervals have a simple process for preparation, which is convenient for improving the production efficiency of the support layer 33. The support members 332 are in any one of a cylindrical, prism, and cone shape; in this embodiment, the support member 332 is in a cylindrical shape. The cylindrical support member 332 has a low production cost, and the mold is easy to make, and the support strength is high, which is convenient for improving the support performance of the support member 332, and the support performance of the central structural layer 3, thereby improving the support performance of the composite material plate.

[0036] In some embodiments of the utility model, the space between two adjacent support members 332 is filled with a heat-insulating material, and the heat-insulating material is selected from any one or more of polypropylene foam material, polystyrene foam material, polyurethane foam material, aerogel, aluminum silicate, and silicon-based foam material. Specifically, the heat-insulating material is selected from polypropylene foam material.

[0037] In some embodiments of the utility model, the height of the support layer 33 can be adjusted according to the thermal resistance requirements, wherein the thickness ratio of the first thermal insulation layer 1, the central structure layer 3, and the second thermal insulation layer 2 is 0.1:6.1:0.1; specifically, the thickness of the composite material board is 6.3 mm, the thickness of the first thermal insulation layer 1 is 0.1 mm, and the thickness of the second thermal insulation layer 2 is 0.1 mm; the thickness of the first flame retardant layer 31 is 0.8 mm; the thickness of the support layer 33 is 4.5 mm; and the thickness of the second flame retardant layer 32 is 0.8 mm. The thickness ratio of the first thermal insulation layer 1, the central structure layer 3, and the second thermal insulation layer 2 is adjusted to better exert the support and thermal insulation performance of the central structure layer 3.

[0038] In the composite material board provided by the utility model, the support layer 33 in the central structure layer 3 plays a supporting role. The support layer 33 is prepared by vacuum forming of a thin plate 331. A plurality of evenly distributed independent cylindrical cavities, namely support members 332, are formed on the surface of the thin plate 331. The support members 332 are arranged at intervals to form an air layer. Subsequently, the first flame retardant layer 31, the support layer 33, and the second flame retardant layer 32 are hot-melt bonded in sequence to form the central structure layer 3, which is convenient for reducing the heat conduction rate. Then, fire-proof structural glue is coated on the back of the first thermal insulation layer 1 and bonded to the surface of the first flame retardant layer 31 in the central structure layer 3. Subsequently, fire-proof structural glue is coated on the back of the second thermal insulation layer 2 and bonded to the surface of the second flame retardant layer 32 in the central structure layer 3 to form a composite material board, which is convenient for further reducing the heat conduction rate. At the same time, the first thermal insulation layer 1 and the second thermal insulation layer 2 are both made of aluminum foil, which is convenient for further resisting radiant heat transfer, thereby improving the thermal insulation and heat insulation effects of the composite material board.

[0039] When the composite material board provided by the utility model is used, firstly one composite material board is parallelly spliced ​​with another composite material board, and then the edge seams of the two are bonded with a waterproof tape, thereby completing the splicing of the composite material boards.

[0040] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A composite material board, characterized in that: The composite material plate comprises, from top to bottom, a first heat insulation layer (1), a central structure layer (3), and a second heat insulation layer (2); the central structure layer (3) comprises, from top to bottom, a first flame retardant layer (31), a support layer (33), and a second flame retardant layer (32); the support layer (33) is integrally formed, comprising a thin plate (331) and a plurality of support members (332) distributed at intervals; the support member (332) is a vertical hollow cavity structure formed by vacuum forming the thin plate (331).

2. The composite material plate according to claim 1, characterized in that: The support members (332) are arranged at even intervals.

3. The composite material plate according to claim 1, characterized in that: The support member (332) is in any one of a cylindrical, prism, and cone shape.

4. The composite material plate according to claim 3, characterized in that: A heat insulating material is filled between two adjacent support members (332); the heat insulating material is selected from any one of polypropylene foam material, polystyrene foam material, polyurethane foam material, aerogel, aluminum silicate, and silicon-based foam material.

5. The composite material plate according to claim 1, characterized in that: The upper surface of the support layer (33) is hot-melt bonded to the first flame retardant layer (31); And / or, the lower surface of the support layer (33) is hot-melt bonded to the second flame-retardant layer (32).

6. The composite material plate according to claim 1, characterized in that: The upper surface of the central structural layer (3) is bonded to the first thermal insulation layer (1); And / or, the lower surface of the central structural layer (3) is bonded to the second thermal insulation layer (2).

7. The composite material plate according to claim 1, characterized in that: The first flame retardant layer (31) is selected from any one of a flame retardant fiber-reinforced polypropylene sheet and a flame retardant fiber-reinforced polyvinyl chloride sheet; And / or, the second flame retardant layer (32) is selected from any one of a flame retardant fiber-reinforced polypropylene sheet and a flame retardant fiber-reinforced polyvinyl chloride sheet.

8. The composite material plate according to claim 1, characterized in that: The first heat-insulating layer (1) is aluminum foil, and the emissivity of the aluminum foil is 95-99%.

9. The composite material plate according to claim 1, characterized in that: The second heat-insulating layer (2) is aluminum foil, and the emissivity of the aluminum foil is 95-99%.

10. The composite material plate according to claim 1, characterized in that: The thickness ratio of the first flame retardant layer (31), the support layer (33), and the second flame retardant layer (32) is (0.8-1):(4-4.5):(0.8-1).

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