CN115653224A - Composite board and preparation method and application thereof - Google Patents
Composite board and preparation method and application thereof Download PDFInfo
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- CN115653224A CN115653224A CN202211597397.8A CN202211597397A CN115653224A CN 115653224 A CN115653224 A CN 115653224A CN 202211597397 A CN202211597397 A CN 202211597397A CN 115653224 A CN115653224 A CN 115653224A
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- Y02E10/00—Energy generation through renewable energy sources
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Abstract
The invention discloses a composite board and a preparation method and application thereof, relates to the technical field of building enclosure, and aims to solve the problem that the existing finished building enclosure cannot realize the functions of heat preservation and decoration at the same time. The composite board comprises a surface layer, a bottom layer and a flame-retardant layer filled between the surface layer and the bottom layer, wherein the flame-retardant layer is respectively thermally combined with the surface layer and the bottom layer. The composite board, the preparation method and the application provided by the invention are used for simple, convenient and rapid construction in building enclosure heat preservation and decoration construction, are not easy to fall off and have high safety.
Description
Technical Field
The invention relates to the technical field of building enclosure, in particular to a composite board and a preparation method and application thereof.
Background
Along with the continuous enhancement of the requirements of people on the residential environment and the residential comfort of the building and the increasing urgency of reducing energy consumption and environmental pollution, the exterior-protecting heat-insulating technology is more and more regarded as an important plate for building energy conservation. Because the heat-insulating material is arranged outside the building enclosure, the influence of cold and hot bridges at each part of the building can be basically eliminated, and the heat-insulating efficiency of the light novel high-efficiency heat-insulating material can be fully exerted. Compared with the enclosure internal insulation and sandwich insulation wall, the thickness of the insulation material is smaller under the condition of using the same insulation material, so that the higher energy-saving effect is achieved.
At present, the exterior-protecting heat-insulating technology mainly comprises a rock wool exterior-protecting heat-insulating system, an EPS/XPS plate exterior-protecting heat-insulating system, a sandwich exterior-protecting heat-insulating system, a prefabricated heat-insulating plate exterior-protecting heat-insulating system, a heat-insulating and decorative integrated exterior-protecting heat-insulating system and the like. The existing exterior-protecting heat-insulating system is generally composed of a multi-layer structure, and even seven layers are divided according to functions, wherein the seven layers comprise a leveling layer, a bonding material, a heat-insulating material, a reinforcing grid cloth, an anti-cracking layer, putty, decorative coating, a face brick layer and the like. However, in the prior art, the heat insulation material is bonded on the envelope surface by directly using an adhesive mode or a cement mode outside the wall body, and then the decorative plate is bonded by using the adhesive mode, so as to achieve the effects of heat insulation and decoration. Meanwhile, the method is complicated in construction and long in construction period.
Disclosure of Invention
The invention aims to provide a composite board, a preparation method and application thereof.
In a first aspect, the present invention provides a composite board, which includes a surface layer, a bottom layer, and a flame retardant layer filled between the surface layer and the bottom layer, wherein the flame retardant layer is thermally bonded to the surface layer and the bottom layer, respectively.
Compared with the prior art, the composite board provided by the invention has the following advantages:
the composite board provided by the embodiment of the invention comprises a surface layer, a bottom layer and a flame-retardant layer filled between the surface layer and the bottom layer, wherein the flame-retardant layer is respectively thermally combined with the surface layer and the bottom layer. When the flame-retardant layer is heated, the polar groups in the flame-retardant layer approach the surface layer and the bottom layer, so that the flame-retardant layer is tightly bonded with the surface layer and the bottom layer respectively, and at the moment, the surface layer, the flame-retardant layer and the bottom layer are of an integral structure. Therefore, when the enclosure heat preservation construction is carried out, the heat preservation and decoration integrated plate can be directly and integrally fixedly connected on the constructed enclosure surface in a mechanical connection mode, for example: riveting, key pin connection, bolted connection or other mechanical connection modes need not carry out cement to the wall again and make level and sticky processing, can be so that the process of construction is simple more convenient, and the job site does not have environmental pollution, has still avoided the use of glue, has satisfied people to the requirement of environmental protection and health. Moreover, the heat-preservation and decoration integrated plate is fixedly connected to the enclosing surface in a fixed connection mode, so that the plate can be prevented from falling off, and potential safety hazards are avoided. Meanwhile, the flame-retardant layer has strong flame retardance and oxidation resistance and low heat conductivity coefficient, so that the heat insulation performance of the plate is better, and the plate cannot age after being exposed to sunlight for a long time.
In addition, the composite board provided by the embodiment of the invention has an assembled structure, so that the composite board can be directly produced in a factory, and the factory production is realized, so that the construction process can be simplified in field construction, and the composite board can be directly and fixedly connected to a surrounding surface to be constructed.
Therefore, the composite board provided by the invention can be produced in batch in a factory, is simple, convenient and quick in construction process, is not easy to fall off, and is high in safety.
In a second aspect, the present invention further provides a method for preparing a composite board, including:
providing a surface layer and a bottom layer;
filling a flame-retardant layer between the surface layer and the bottom layer to obtain a combined body;
and (3) the combined body is thermally combined through a thermal sealing process to obtain the composite board.
Compared with the prior art, the beneficial effects of the preparation method of the composite board provided by the invention are the same as those of the composite board provided by the first aspect, and the details are not repeated herein.
In a third aspect, the invention also provides application of the composite board in building enclosure heat preservation, decoration and power generation construction.
Compared with the prior art, the beneficial effects of the application of the composite board in the building enclosure heat preservation, decoration and power generation construction provided by the invention are the same as the beneficial effects of the composite board in the first aspect, and the detailed description is omitted here.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a composite sheet according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of another composite sheet according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a composite panel incorporating an insulation assembly according to an embodiment of the present invention;
FIG. 4 is another schematic view of a composite panel incorporating an insulation assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a third construction of a composite panel incorporating an insulation assembly in accordance with an embodiment of the present invention;
FIG. 6 is a schematic structural view of a split insulation assembly according to an embodiment of the present invention;
fig. 7 is a flow chart of the preparation of the composite board according to the embodiment of the present invention.
Reference numerals:
100-face layer, 101-first top surface structure, 102-first side wall structure, 103-first end portion; 200-bottom layer, 201-second top surface structure, 202-second side wall structure, 203-second end portion; 300-a flame retardant layer; 400-a thermally insulating structure; 500-electricity generation layer.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise. The meaning of "a number" is one or more unless specifically limited otherwise.
The building external enclosure structure refers to an enclosure part of a building and an atmospheric environment, and comprises an external wall, a door and window, a roof, a floor and the like. The building heat preservation refers to heat preservation of a peripheral structure of a building, and reduces energy consumption of a heating building and improves comfort level of a non-heating building by reducing dissipation of indoor heat to the outside. At present, because the heat insulation material is arranged on the outer side of the outer wall or the top surface of a building, the influence of cold and heat bridges at each part of the building can be basically eliminated, and the heat insulation efficiency of the novel light high-efficiency heat insulation material can be fully exerted. The heat-insulating layer arranged outside the building greatly reduces the influence of the temperature, the humidity, the ultraviolet rays and the like in the nature on the main structure. Particularly, due to the influence of temperature on the structure, the expansion caused by heat and the contraction caused by cold on the periphery of the building can cause the cracking of a part of non-structural members of the building, and the enclosure adopts an external heat insulation technology to reduce the stress generated by the temperature in the structure.
The building enclosure external heat preservation is not only suitable for buildings needing winter heating in the north, but also suitable for air-conditioning buildings needing summer heat insulation in the south. The heat-insulating brick is suitable for heat insulation of masonry enclosure of a brick-concrete structure building and is also suitable for heat insulation of concrete enclosure of a shear wall structure. The method is suitable for energy-saving reconstruction of newly-built buildings and existing buildings.
At present, photovoltaic module building enclosures on the market generally inlay photovoltaic modules between two pieces of high-transmittance glass to obtain a glass curtain wall, and then convert light energy into electric energy through the photovoltaic modules for domestic electricity utilization. However, the photovoltaic module installed by the method cannot simultaneously realize the heat preservation function of building enclosure, and the high-transmittance glass is expensive, mostly depends on import, and is too high in cost.
In order to solve the problems, the embodiment of the invention provides the application of the composite board in the construction of building enclosure heat preservation, decoration and power generation, so that the construction process of the building enclosure is simple, convenient and quick, and the composite board is not easy to fall off and has high safety. In practical application, the composite board can be used for integration of enclosure of buildings and heat preservation and decoration of the top of the buildings, and can also be used for integration of enclosure of buildings and heat preservation, decoration and power generation of the top of the buildings. It should be understood that the composite board provided by the embodiment of the invention can also be applied to the outer surfaces of mobile houses, garages, frontier sentries, island buildings and the like.
In one example, the composite board provided by the embodiment of the invention comprises a surface layer, a bottom layer and a flame-retardant layer filled between the surface layer and the bottom layer, wherein the flame-retardant layer is respectively thermally combined with the surface layer and the bottom layer. Fig. 1 shows a schematic structural diagram of a composite board according to an embodiment of the present invention. As shown in fig. 1, the composite board according to the embodiment of the present invention includes a top layer 100, a bottom layer 200, and a flame retardant layer 300, wherein the flame retardant layer 300 is thermally bonded to the top layer 100 and the bottom layer 200, respectively.
The composite board provided by the embodiment of the invention comprises a surface layer, a bottom layer and a flame-retardant layer filled between the surface layer and the bottom layer, wherein the flame-retardant layer is respectively and thermally combined with the surface layer and the bottom layer. When the flame-retardant layer is heated, the polar groups in the flame-retardant layer approach the surface layer and the bottom layer, so that the flame-retardant layer is tightly bonded with the surface layer and the bottom layer respectively, and at the moment, the surface layer, the flame-retardant layer and the bottom layer are of an integral structure. Therefore, when the enclosure is subjected to heat preservation construction, the composite board can be directly and integrally fixedly connected to the constructed enclosure surface in a mechanical connection mode, for example: riveting, key pin connection, bolted connection or other mechanical connection modes need not carry out cement to the wall again and make level and sticky the processing, can be so that the process of construction is simple more convenient, and the job site does not have environmental pollution, has still avoided the use of glue, has satisfied people to the requirement of environmental protection and health. And moreover, the composite board is fixedly connected to the enclosing surface in a fixed connection mode, so that the board can be prevented from falling off, and potential safety hazards are avoided. Meanwhile, the flame-retardant material contained in the flame-retardant layer has strong flame retardance and oxidation resistance and low heat conductivity coefficient, so that the plate has better heat insulation performance and cannot age after being exposed to sunlight for a long time.
In another example, the composite board provided by the embodiment of the invention further comprises an electricity generation layer, the electricity generation layer is arranged on the outer surface of the surface layer, and the electricity generation layer and the surface layer are thermally combined together. Fig. 2 shows a schematic structural view of another composite board according to an embodiment of the present invention. As shown in fig. 2, the composite board according to the embodiment of the present invention includes a surface layer 100, a bottom layer 200, a flame retardant layer 300, and a power generation layer 500, wherein the flame retardant layer 300 is thermally bonded to the surface layer 100 and the bottom layer 200, respectively, and the power generation layer 500 is thermally bonded to the surface layer 100.
It should be understood that the flame retardant layer includes a flame retardant material, the flame retardant material includes a flame retardant material selected from a B1-grade flame retardant structural foam or a-grade flame retardant structural foam, and the a-grade flame retardant structural foam includes a phenolic resin foam or other a-grade flame retardant structural foam, which is not described in detail herein. The power generation layer comprises a photovoltaic power generation assembly, the photovoltaic power generation assembly can comprise a film power generation layer, and the film power generation layer can be a transparent film power generation layer and can also be a non-transparent film power generation layer. That is, when the composite board is used for a roof, a non-transparent film power generation layer can be used, and when the composite board is used for a building envelope, a transparent film power generation layer can be used, so that a more beautiful decorative effect can be obtained.
Therefore, the composite board provided by the embodiment of the invention has the advantages that the power generation layer is arranged on the outer surface of the surface layer, the power generation layer and the surface layer are combined together in a hot mode, and the power generation layer, the surface layer, the flame-retardant layer and the bottom layer are used as an integral structure, so that the composite board provided by the embodiment of the invention can be integrally and fixedly connected to the constructed enclosure surface in a mechanical connection mode when building enclosure is constructed, photovoltaic power generation can be realized while the building enclosure is insulated, and a glass curtain wall does not need to be additionally bonded to the insulation enclosure, so that the construction process is simpler and more convenient, no environmental pollution is caused on the construction site, high-light-transmitting glass does not need to be used, and the cost of raw materials is reduced.
In addition, the composite board provided by the embodiment of the invention has an assembled structure, so that the composite board can be directly produced in a factory, and the factory production is realized, so that the construction process can be simplified in field construction, and the composite board can be directly and fixedly connected to a surrounding surface to be constructed.
Therefore, the composite board provided by the invention can be produced in batch in a factory, the construction process is simple, convenient and quick, and the photovoltaic power generation can be carried out while the building enclosure is insulated.
In an implementation manner, the surface layer of the embodiment of the invention includes a first top surface structure and a first sidewall structure surrounding the first top surface structure, the bottom layer includes a second top surface structure and a second sidewall structure surrounding the second top surface structure, the first top surface structure, the second top surface structure, the first sidewall structure and the second sidewall structure enclose a containing cavity, and the flame retardant layer is located in the containing cavity. That is to say, surface course and bottom can be for having one side open-ended box structure respectively, and the box body can be rectangle box body, circular box body, triangle-shaped box body or other figure box bodies, and this place does not do the restriction.
As shown in fig. 1 and fig. 2, the surface layer 100 of the composite board according to the embodiment of the present invention includes a first top surface structure 101 and a first sidewall structure 102 surrounding the first top surface structure 101, the bottom layer 200 includes a second top surface structure 201 and a second sidewall structure 202 surrounding the second top surface structure 201, the first top surface structure 101, the second top surface structure 201, the first sidewall structure 102, and the second sidewall structure 202 enclose a receiving cavity, and the flame retardant layer 300 is located in the receiving cavity. In the following, the surface layer and the bottom layer of the composite board according to the embodiment of the present invention are both a rectangular box structure with an opening on one side.
In one implementation, the first sidewall structure of the surface layer and the second sidewall structure of the bottom layer have a gap therebetween, and the composite board further includes a thermal insulation structure disposed at the gap. It should be understood that the material used in the thermal insulation structure of the embodiment of the present invention may be glass fiber, asbestos, rock wool, silicate, aerogel blanket, vacuum plate, foam, or other thermal insulation materials, which are not described herein.
In an alternative form, the facings of the composite panels of embodiments of the present invention include a first sidewall structure having a first end remote from the first roof structure and a second sidewall structure having a second end remote from the second roof structure, the first and second ends being opposite, and the insulation structure being in contact with the first and second ends, respectively. It should be understood that when the first end portion is opposite the second end portion, the first end portion and the second end portion are not in direct contact, but are in common contact with the first end portion and the second end portion through the thermal insulation structure.
FIG. 3 shows a schematic view of a composite panel incorporating an insulation assembly according to an embodiment of the present invention. As shown in fig. 3, the composite board of the embodiment of the invention further includes an insulation structure 400, the surface layer includes a first side wall structure having a first end 103 far from the first top surface structure, a second side wall structure having a second end 203 far from the second top surface structure, the first end 103 is opposite to the second end 203, a gap is formed between the first end 103 and the second end 203, and the insulation structure 400 can be disposed in the gap between the first end 103 and the second end 203.
FIG. 4 shows another schematic of a composite panel incorporating an insulation assembly according to an embodiment of the present invention. As shown in fig. 4, in the composite board according to the embodiment of the present invention, a gap is formed between the first end 103 and the second end 203, and the heat insulation structure 400 may be disposed outside the first end 103 and the second end 203, and the heat insulation structure 400 is in contact with the first end 103 and the second end 203, respectively.
Therefore, the heat insulation structure is arranged in the gap between the first side wall structure contained in the surface layer and the second side wall structure contained in the bottom layer, the heat insulation structure is respectively contacted with the first end portion and the second end portion or arranged in the gap between the first end portion and the second end portion, heat of the bottom layer can be separated, the heat of the bottom layer is not easily conducted to the surface layer, the speed of conducting the heat of the bottom layer to the outer layer is reduced, the heat insulation effect of the composite board on the building enclosure is further ensured, the indoor temperature is not easily conducted to the outdoor, and the heat insulation effect is better.
In another alternative, the face layer and the bottom layer of an embodiment of the present invention are fastened together with the insulation structure between the first sidewall structure and the second sidewall structure. It is understood that the top layer of embodiments of the present invention may include a first top structure having an area greater than an area of a second top structure included in the bottom layer. For example: the long limit of the first top surface structure that the surface course contains can be greater than the long limit of the second top surface structure that the bottom contains, and the broadside of the first top surface structure that the surface course contains can be greater than the broadside of the second top surface structure that the bottom contains. At this point, the facing layer may snap together with the base layer with a void between the first and second sidewall structures, and the insulating structure may be disposed in the void between the first and second sidewall structures.
FIG. 5 illustrates a third construction of a composite panel incorporating an insulation assembly in accordance with an embodiment of the present invention. As shown in fig. 5, in the composite board of the embodiment of the present invention, the first sidewall structure 102 and the second sidewall structure 202 are fastened together, and the thermal insulation structure 400 is located in the gap between the first sidewall structure 102 and the second sidewall structure 202. At this moment, the heat insulation material 400 can obstruct the heat transfer of the bottom layer 200 and prevent the heat transfer of the bottom layer 200 to the surface layer 100, so that the speed of the heat transfer of the bottom layer 200 to the surface layer 100 is reduced, the heat insulation effect of the composite board on the building enclosure is ensured, the indoor temperature is not easy to transfer to the outdoor space, and the heat insulation effect is better. Meanwhile, when the heat insulation structure 400 is located in the gap between the first side wall structure 102 and the second side wall structure 202, it can be ensured that the heat insulation structure is not easily corroded or damaged when the outdoor environment is severe, and the service life of the heat insulation material is prolonged.
In a realizable manner, the heat insulation structure of the embodiment of the invention is an integrated heat insulation structure or a split heat insulation structure, when the heat insulation structure is a split heat insulation structure, the split heat insulation structure comprises a plurality of sub heat insulation pieces, and each sub heat insulation piece is arranged at the position of the gap along the circumferential direction of the accommodating cavity. Fig. 6 shows a schematic structural view of a split thermal insulation assembly according to an embodiment of the present invention, and when the thermal insulation structure 400 is a split thermal insulation structure, the split thermal insulation structure includes a plurality of sub thermal insulation members, each of which is disposed in a gap between a first side wall structure included in the face layer 100 and a second side wall structure included in the bottom layer 200 along a circumferential direction of the receiving cavity, as shown in fig. 6. That is, the sub-insulators are circumferentially distributed along the inner portion of the first sidewall structure contained in the facing layer 100 and the outer portion of the second sidewall structure contained in the bottom layer 200.
When the heat insulation structure is a split type heat insulation assembly, the material cost of the heat insulation assembly can be reduced, the manufacturing cost is reduced, and meanwhile, the weight of the composite board can be reduced, so that the board is lighter and more convenient to construct, the bearing of the building enclosure is reduced, and the potential safety hazard caused by falling off of the composite board due to overweight is avoided.
Illustratively, the flame retardant layer of the present example is heat sealed to the top and bottom layers, respectively, by a heat sealing interface material, and the electricity generating layer is heat sealed to the top layer by a heat sealing interface material. The heat seal interface material comprises at least one of a water-based heat seal material, a hot melt heat seal material, a solvent-free heat seal material and a biodegradable heat seal material. The heat seal interface material of the embodiment of the invention is environment-friendly.
For example: when the heat-sealing interface material is a water-based heat-sealing material, it can be at least one of a water-soluble adhesive, a water-dispersible adhesive and a water-emulsion adhesive. When the heat seal interface material is a hot melt heat seal material, the material can be at least one of ethylene-vinyl acetate copolymer hot melt heat seal materials, polyester hot melt heat seal materials, polyamide hot melt heat seal materials, polyethylene hot melt heat seal materials and polyurethane hot melt heat seal materials. When the heat seal interface material is a solvent-free heat seal material, the heat seal interface material can be at least one of epoxy glue, anaerobic glue, alpha-cyanoacrylate glue, solvent-free polyurethane glue and photocuring adhesive. When the heat-seal interface material is a biodegradable heat-seal material, the heat-seal interface material can be at least one of PU hot melt adhesives, PA hot melt adhesives, natural high polymer material hot melt adhesives and acrylate adhesives. The heat-seal interface material disclosed by the embodiment of the invention has the advantages of no solvent volatilization, no pollution, no release of harmful micromolecules in the use process, no pollution, quick curing, wide bonding surface, suitability for continuous production and convenience in storage and transportation.
In an alternative mode, the surface layer and the bottom layer of the embodiment of the invention are made of fireproof facing materials or metal materials. When the surface layer and the bottom layer are made of fireproof facing materials, the facing materials can be porcelain plates, ceramic plates or melamine plates. When the surface layer and the bottom layer are made of metal materials, the surface layer and the bottom layer can be made of aluminum plates, aluminum composite plates, aluminum honeycomb plates, fireproof plates, titanium-zinc-plastic-aluminum composite plates, sandwich heat-insulating aluminum plates, stainless steel plates, color-coated steel plates, enamel steel plates or other metal plates.
Illustratively, the thickness of the first top surface structure of the embodiment of the present invention is 0.5mm to 1.0mm, the thickness of the second top surface structure is 0.5mm to 1.0mm, the thickness of the flame retardant layer is 30mm to 75mm, the mass of the composite board is 4kg/m to 9.5kg/m, and the density of the flame retardant layer is greater than 45kg/m 3 And the compression strength of the flame-retardant layer is more than 0.14MPa.
According to the composite board provided by the embodiment of the invention, the thickness of the first top surface structure is 0.5mm to 1.0mm, the thickness of the second top surface structure is 0.5mm to 1.0mm, the thickness of the flame-retardant layer is 30mm to 75mm, and the mass of the composite board is 4kg/m to 9.5kg/m, so that the weight of the composite board is greatly smaller than the weight of enclosure insulation and decoration in the prior art, the unit load bearing and the overall load bearing of the enclosure insulation in the prior art are greatly reduced, the falling of the board caused by the too large weight of the board is reduced, and the potential safety hazard is avoided. Meanwhile, due to the fact that the material consumption is small, raw materials are saved, and cost is saved.
On the basis, the density of the flame-retardant layer of the embodiment of the invention is more than 45kg/m 3 The compression strength of the flame-retardant layer is more than 0.14MPa, and the flame-retardant layer is respectively combined with the surface layer and the bottom layer in a hot way, so that the composite effect can be ensuredThe composite board has certain mechanical strength, so that the composite board is not easy to deform, the service life of the composite board is prolonged, and the attractiveness of enclosure decoration can be ensured.
For example, the surface of the top layer and the bottom layer of the embodiment of the invention are further coated with fluorocarbon paint, so that a self-cleaning function can be realized, for example: when raining, the rainwater can be used for easily washing the dust on the surface.
The embodiment of the invention also provides a preparation method of the composite board, which can be used for preparing the composite board of the embodiment of the invention. Fig. 7 shows a schematic flow chart of a method for manufacturing a composite board according to an embodiment of the present invention. As shown in fig. 7, the method for preparing the composite board according to the embodiment of the present invention includes:
step 701: a top layer and a bottom layer are provided.
For example, the metal plate may be cut, chamfered, and bent at its periphery according to the design size to form an upper box cover having an opening on one side and a lower box cover, i.e., a surface layer and a bottom layer.
Step 702: and filling a flame-retardant layer between the surface layer and the bottom layer to obtain the combined product.
For example: and enclosing the box-shaped upper cover and the box-shaped lower cover into an accommodating cavity, wherein a gap is formed between the side walls of the box-shaped upper cover and the box-shaped lower cover, flame-retardant materials are paved in the accommodating cavity, and heat-insulating materials are placed in the gap to obtain a combined body.
Step 703: and (3) the combined body is thermally combined through a thermal sealing process to obtain the composite board.
For example: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100-200 ℃, the heat sealing pressure to be 0.2MPa-0.5MPa and the heat sealing time to be 30s-60s, and carrying out integral heat sealing molding.
Illustratively, after the flame retardant layer is filled between the top layer and the bottom layer, and before the assembly is obtained, the method further comprises: the outer surface of the surface layer is covered with a power generation layer. For example: and enclosing the box-shaped upper cover and the box-shaped lower cover into an accommodating cavity, wherein a gap is formed between the side walls of the box-shaped upper cover and the box-shaped lower cover, flame-retardant materials are laid in the accommodating cavity, and after heat-insulating materials are placed in the gap, the power generation layer covers the outer surface of the surface layer to form a combined body.
In an alternative manner, after providing the surface layer and the bottom layer, before filling the flame retardant layer between the surface layer and the bottom layer to obtain the assembly, the method for preparing the composite board according to the embodiment of the present invention further includes: and applying a heat-seal interface material on the inner surface of the surface layer, applying a heat-seal interface material on the inner surface of the bottom layer, and applying a heat-seal interface material on the outer surface of the surface layer, wherein the heat-seal interface material comprises at least one of a water-based heat-seal material, a hot-melt heat-seal material, a solvent-free heat-seal material and a biodegradable heat-seal material.
For example: after the surface layer and the bottom layer are provided, heat-seal interface materials are applied to the inner surfaces of the surface layer and the bottom layer, the surface layer and the bottom layer are enclosed to form an accommodating cavity, and then the flame-retardant layer is laid in the accommodating cavity to obtain a combined body.
In another alternative, after providing the surface layer and the bottom layer, the composite board of the embodiment of the invention is applied with the heat-seal interface material on the inner surfaces of the surface layer and the bottom layer, the surface layer and the bottom layer enclose the accommodating cavity, then the flame-retardant layer is laid in the accommodating cavity, a gap is formed between the side walls of the surface layer and the bottom layer, the heat-insulating material is placed in the gap, then the heat-seal interface material is applied on the outer surface of the surface layer, and the heat-seal interface material of the power generation layer covered on the outer surface of the surface layer is applied to obtain the assembly.
When the composite board provided by the embodiment of the invention is subjected to thermal polymerization, the polar group in the flame-retardant material contained in the flame-retardant layer approaches to the surface layer and the bottom layer, so that the flame-retardant layer is tightly bonded with the surface layer and the bottom layer respectively. Meanwhile, the power generation layer is arranged on the surface layer, the power generation layer and the surface layer are combined together in a hot mode, and the power generation layer, the surface layer, the flame-retardant layer and the bottom layer are used as an integral structure, so that when building enclosure is constructed, the composite board provided by the embodiment of the invention can be integrally and fixedly connected to the constructed enclosure surface in a mechanical connection mode, photovoltaic power generation can be realized while the building enclosure is insulated, and a glass curtain wall does not need to be additionally bonded on the insulation enclosure, so that the construction process is simpler and more convenient, no environmental pollution is caused to the construction site, and the imported high-light-transmission glass is not needed, so that the raw material cost is reduced. And moreover, the composite board is fixedly connected to the enclosing surface in a fixed connection mode, so that the board can be prevented from falling off, and potential safety hazards are avoided.
Meanwhile, due to the existence of the flame-retardant layer, the composite board has strong flame retardance, oxidation resistance and low heat conductivity coefficient, so that the composite board disclosed by the embodiment of the invention has better heat insulation performance and cannot age after being exposed to sunlight for a long time.
In addition, the composite board provided by the embodiment of the invention is of an assembly structure, can be directly produced in a factory, and realizes factory production, so that the construction process can be simplified during field construction, and the composite board can be directly and fixedly connected to a building envelope to be constructed.
Therefore, the composite board provided by the invention can be produced in batch in a factory, the construction process is simple, convenient and quick, and the photovoltaic power generation can be carried out while the building enclosure is insulated.
In order to verify the effect of the composite board provided by the embodiment of the present invention, the embodiment of the present invention is demonstrated by comparing the embodiment with the comparative example.
Example one
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a phenolic foam material and a heat insulation structure, wherein the heat insulation structure is arranged in a gap between a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer.
The preparation method of the composite board provided by the embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.7mm.
Step two, preparing a bottom layer: and cutting, chamfering and bending the periphery of the metal plate according to the engineering design size to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.5mm.
Step three, preparing a combination: enclosing box type upper cover and box type lower cover into holding the chamber, laying phenolic foam in holding the intracavity, phenolic foam material's thickness is 65mm, has the space between the first end that first lateral wall structure of box type upper cover contained and the second end that second lateral wall structure contained, places thermal insulation material in the space, obtains the composite body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.2MPa and the heat sealing time to be 60s, and carrying out integral heat sealing molding to obtain the composite board.
Example two
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a phenolic foam material and a heat insulation structure, wherein the heat insulation structure is arranged on the outer sides of a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer, and the heat insulation structure is respectively contacted with the first end part and the second end part.
The preparation method of the composite board provided by the embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.8mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.5mm.
Step three, preparing a combination: enclose box type upper cover and box type lower cover and become to hold the chamber, at holding the intracavity and laying phenolic foam, phenolic foam material's thickness is 72mm, has the space between the first end that first side wall structure of box type upper cover contained and the second end that second side wall structure contained, and thermal-insulated structure establishes in the outside of first end and second end, and thermal-insulated structure contacts with first end and second end respectively, obtains the combination.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.5MPa and the heat sealing time to be 40s, and performing integral heat sealing molding to obtain the composite board.
EXAMPLE III
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a phenolic foam material and a heat insulation structure, wherein the surface layer and the bottom layer are buckled together, and the heat insulation structure is positioned between a first side wall structure contained in the surface layer and a second side wall structure contained in the bottom layer.
The preparation method of the composite board provided by the third embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 1.0mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.55mm.
Step three, preparing a combination: buckling the box-type upper cover and the box-type lower cover to form an accommodating cavity, laying phenolic foam in the accommodating cavity, wherein the thickness of the phenolic foam material is 30mm, a gap is reserved between a first side wall structure contained in the box-type upper cover and a second side wall structure contained in the box-type lower cover, and a heat insulation structure is arranged between the first side wall structure and the second side wall structure to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.35MPa and the heat sealing time to be 50s, and carrying out integral heat sealing molding to obtain the composite board.
Example four
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged in a gap between a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer.
The preparation method of the composite board provided by the fourth embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.75mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.55mm.
Thirdly, preparing a combined product: enclosing a box-shaped upper cover and a box-shaped lower cover into an accommodating cavity, laying a flame-retardant material in the accommodating cavity, wherein the thickness of the flame-retardant material is 65mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering the outer surface of the box-shaped upper cover with a transparent power generation layer, and placing a heat-insulating material in a gap between the first end and the second end to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.2MPa and the heat sealing time to be 60s, and performing integral heat sealing molding to obtain the composite board.
EXAMPLE five
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged in a gap between a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer.
The preparation method of the composite board provided by the fifth embodiment of the invention comprises the following steps:
step one, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 1.0mm.
Step two, preparing a bottom layer: and cutting, chamfering and bending the periphery of the metal plate according to the engineering design size to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.6mm.
Thirdly, preparing a combined product: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 68mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering the outer surface of the box-shaped upper cover with a transparent power generation layer, and placing a heat-insulating material in a gap between the first end and the second end to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature at 150 ℃, the heat sealing pressure at 0.3MPa and the heat sealing time at 50s, and carrying out integral heat sealing molding to obtain the composite board.
Example six
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged in a gap between a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer.
The preparation method of the composite board provided by the sixth embodiment of the invention comprises the following steps:
step one, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture a box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.55mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.82mm.
Step three, preparing a combination: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 75mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering the outer surface of the box-shaped upper cover with a transparent power generation layer, and placing a heat-insulating material in a gap between the first end and the second end to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 200 ℃, the heat sealing pressure to be 0.5MPa and the heat sealing time to be 30s, and performing integral heat sealing molding to obtain the composite board.
EXAMPLE seven
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged on the outer sides of a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer, and the heat insulation structure is respectively contacted with the first end part and the second end part.
The preparation method of the composite board provided by the seventh embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.78mm.
Step two, preparing a bottom layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.56mm.
Thirdly, preparing a combined product: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 60mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering a transparent power generation layer on the outer surface of the box-shaped upper cover, and placing a heat-insulating material on the outer sides of the first end part and the second end part to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.5MPa and the heat sealing time to be 40s, and carrying out integral heat sealing molding to obtain the composite board.
Example eight
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged on the outer sides of a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer, and the heat insulation structure is respectively contacted with the first end part and the second end part.
The preparation method of the composite board provided by the eighth embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.62mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.93mm.
Step three, preparing a combination: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 40mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering a transparent power generation layer on the outer surface of the box-shaped upper cover, and placing a heat-insulating material on the outer sides of the first end part and the second end part to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature at 170 ℃, the heat sealing pressure at 0.4MPa and the heat sealing time at 40s, and carrying out integral heat sealing molding to obtain the composite board.
Example nine
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the heat insulation structure is arranged on the outer sides of a first end part contained in a first side wall structure of the surface layer and a second end part contained in a second side wall structure of the bottom layer, and the heat insulation structure is respectively contacted with the first end part and the second end part.
The preparation method of the composite board provided by the ninth embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.5mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 1.0mm.
Step three, preparing a combination: enclosing box type upper cover and box type lower cover into a containing cavity, laying flame retardant material in the containing cavity, wherein the thickness of the flame retardant material is 30mm, applying heat seal interface material on the inner surface and the outer surface of the box type upper cover, applying heat seal interface material on the inner surface of the box type lower cover, filling the flame retardant material between the box type upper cover and the box type lower cover, covering a transparent power generation layer on the outer surface of the box type upper cover, placing heat insulation material on the outer sides of the first end part and the second end part, and obtaining a combined body on the outer surface of the contained first top surface structure.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature at 130 ℃, the heat sealing pressure at 0.4MPa and the heat sealing time at 45s, and performing integral heat sealing molding to obtain the composite board.
Example ten
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the surface layer and the bottom layer are buckled together, and the heat insulation structure is positioned between a first side wall structure contained in the surface layer and a second side wall structure contained in the bottom layer.
The preparation method of the composite board provided by the embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture a box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.85mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.55mm.
Step three, preparing a combination: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 45mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering a transparent power generation layer on the outer surface of the box-shaped upper cover, placing a heat-insulating material in a gap between a first side wall structure and a second side wall structure, and obtaining a combined body on the outer surface of the contained first top surface structure.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 100 ℃, the heat sealing pressure to be 0.35MPa and the heat sealing time to be 50s, and carrying out integral heat sealing molding to obtain the composite board.
EXAMPLE eleven
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the surface layer and the bottom layer are buckled together, and the heat insulation structure is positioned between a first side wall structure contained in the surface layer and a second side wall structure contained in the bottom layer.
The preparation method of the composite board provided by the eleventh embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture a box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.63mm.
Step two, preparing a bottom layer: and cutting the metal plate according to the engineering design size, chamfering and bending the periphery to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.60mm.
Step three, preparing a combination: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 65mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering a transparent power generation layer on the outer surface of the box-shaped upper cover, placing a heat-insulating material in a gap between a first side wall structure and a second side wall structure, and obtaining a combined body on the outer surface of the contained first top surface structure.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature at 170 ℃, the heat sealing pressure at 0.45MPa and the heat sealing time at 45s, and carrying out integral heat sealing molding to obtain the composite board.
Example twelve
The embodiment of the invention provides a composite board, which comprises a surface layer, a bottom layer, a flame-retardant layer, a heat insulation structure and a power generation layer, wherein the surface layer and the bottom layer are buckled together, and the heat insulation structure is positioned between a first side wall structure contained in the surface layer and a second side wall structure contained in the bottom layer.
The preparation method of the composite board provided by the twelfth embodiment of the invention comprises the following steps:
firstly, preparing a surface layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture the box-shaped upper cover with an opening on one surface, namely the surface layer, wherein the thickness of the first top surface structure contained in the surface layer is 0.70mm.
Step two, preparing a bottom layer: the metal plate is cut, chamfered and bent at the periphery according to the engineering design size to manufacture a box-shaped lower cover with an opening on one surface, namely a bottom layer, wherein the thickness of a second top surface structure contained in the bottom layer is 0.65mm.
Step three, preparing a combination: enclosing a box-shaped upper cover and a box-shaped lower cover into a containing cavity, laying a flame-retardant material in the containing cavity, wherein the thickness of the flame-retardant material is 50mm, applying a heat-seal interface material on the inner surface and the outer surface of the box-shaped upper cover, applying a heat-seal interface material on the inner surface of the box-shaped lower cover, filling the flame-retardant material between the box-shaped upper cover and the box-shaped lower cover, covering a transparent power generation layer on the outer surface of the box-shaped upper cover, and placing a heat-insulating material in a gap between a first side wall structure and a second side wall structure to obtain a combined body.
Fourthly, preparing a composite board: and (3) feeding the laid assembly into a heat sealing machine, setting the heat sealing temperature to be 200 ℃, the heat sealing pressure to be 0.2MPa and the heat sealing time to be 30s, and carrying out integral heat sealing molding to obtain the composite board.
It can be seen that the composite board prepared in the first to twelfth embodiments of the present invention includes a surface layer, a bottom layer, and a flame retardant layer filled between the surface layer and the bottom layer, and the flame retardant layer is respectively thermally bonded to the surface layer and the bottom layer. When the flame-retardant layer is heated, the polar groups in the flame-retardant material contained in the flame-retardant layer approach to the surface layer and the bottom layer, so that the flame-retardant layer is tightly bonded with the surface layer and the bottom layer respectively. Meanwhile, a power generation layer is further arranged on the surface layer, the power generation layer and the surface layer are combined together in a hot mode, at the moment, the power generation layer, the surface layer, the flame-retardant layer and the bottom layer are of an integral structure, therefore, when the building enclosure is used, the composite board can be integrally and fixedly connected to an enclosure surface of construction in a mechanical connection mode, and the building enclosure can have the functions of heat preservation, decoration and power generation integration.
While the foregoing is directed to embodiments of the present invention, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the invention. Accordingly, the specification and drawings are merely illustrative of the invention as defined by the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents. Any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present disclosure, and all such changes or substitutions are included in the scope of the present disclosure. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (17)
1. The composite board is characterized by comprising a surface layer, a bottom layer and a flame-retardant layer filled between the surface layer and the bottom layer, wherein the flame-retardant layer is respectively in hot fit with the surface layer and the bottom layer.
2. The composite panel according to claim 1, further comprising a power generation layer disposed on an outer surface of the facing layer, the power generation layer and the facing layer being thermally bonded together.
3. The composite board according to claim 1 or 2, wherein the surface layer comprises a first top surface structure and a first side wall structure surrounding the first top surface structure, the bottom layer comprises a second top surface structure and a second side wall structure surrounding the second top surface structure, the first top surface structure, the second top surface structure, the first side wall structure and the second side wall structure enclose a receiving cavity, and the flame retardant layer is located in the receiving cavity.
4. The composite panel of claim 3, wherein a void is provided between the first sidewall structure and the second sidewall structure, the composite panel further comprising a thermal insulation structure disposed at the location of the void.
5. The composite panel as in claim 4, wherein said first sidewall structure has a first end remote from said first top surface structure, said second sidewall structure has a second end remote from said second top surface structure, said first and second ends being opposite, said insulation structure being in contact with said first and second ends, respectively.
6. The composite panel as in claim 4, wherein said facing layer and said bottom layer are fastened together, and said insulating structure is located between a first sidewall structure contained by said facing layer and a second sidewall structure contained by said bottom layer.
7. The composite board according to claim 4, wherein the thermal insulation structure is an integrated thermal insulation structure or a split thermal insulation structure, and when the thermal insulation structure is a split thermal insulation structure, the split thermal insulation structure comprises a plurality of sub thermal insulation members, and each sub thermal insulation member is disposed at the position of the gap along the circumferential direction of the accommodating cavity.
8. The composite sheet according to claim 7, wherein the flame retardant layer is heat-sealed to the face layer and the base layer by a heat-sealing interface material, respectively.
9. The composite sheet according to claim 2, wherein the electricity generating layer is heat-sealed to the face layer by a heat-sealing interface material, and the electricity generating layer comprises a photovoltaic power generating module.
10. The composite sheet material of claim 8 or 9, wherein the sealing interface material comprises at least one of a water-based sealing material, a hot melt sealing material, a solventless sealing material, and a biodegradable sealing material.
11. The composite board of any one of claims 4~7 wherein the facing and the bottom are made of a fire resistant facing material or a metallic material.
12. The composite board as claimed in any one of claims 4~7, wherein the thickness of the first top surface structure is 0.5mm to 1.0mm, and the thickness of the second top surface structure is 0.5mm to 1.0mm; the thickness of the flame retardant layer is 30mm to 75mm, and the mass of the composite board is 4kg/m to 9.5 kg/m; the material of the flame-retardant layer is selected from B1-grade flame-retardant structural foam or A-grade flame-retardant structural foam, and the flame-retardant layer containsSome flame retardant materials have a density of more than 45kg/m 3 And the compression strength of the flame-retardant material contained in the flame-retardant layer is greater than 0.14MPa.
13. A method for preparing the composite board as claimed in any one of claims 1 to 12, which comprises:
providing a surface layer and a bottom layer;
filling a flame-retardant layer between the surface layer and the bottom layer to obtain a combined body;
and (3) the combined body is thermally combined through a thermal sealing process to obtain the composite board.
14. The method for preparing a composite board according to claim 13, wherein after the flame retardant layer is filled between the surface layer and the bottom layer and before the assembly is obtained, the method further comprises:
and the outer surface of the surface layer is covered with a power generation layer.
15. The method of claim 13, wherein the parameters of the heat sealing process include: the heat sealing temperature is 100-200 ℃, the heat sealing pressure is 0.2MPa-0.5MPa, and the heat sealing time is 30s-60s.
16. The method of claim 13, wherein after providing the top layer and the bottom layer, the flame retardant layer is filled between the top layer and the bottom layer, and before obtaining the assembly, the method further comprises:
the inner surface of the surface layer is provided with a heat sealing interface material, the inner surface of the bottom layer is provided with a heat sealing interface material, and the outer surface of the surface layer is provided with a heat sealing interface material, wherein the heat sealing interface material comprises at least one of a water-based heat sealing material, a hot-melt heat sealing material, a solvent-free heat sealing material and a biodegradable heat sealing material.
17. Use of the composite board according to any one of claims 1 to 12 in construction of building envelope insulation, decoration and power generation.
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