Multi-layer composite reinforced self-heat-insulation ground wallboard and preparation process thereof

Abstract

The invention belongs to the technical field of building decoration materials, and relates to a multi-layer composite reinforced self-heat-preservation floor wallboard which comprises a self-heat-preservation functional board, decorative paper and a density board A are sequentially arranged on the surface of the self-heat-preservation functional board from top to bottom, a density board B and balance paper are sequentially arranged on the bottom face of the self-heat-preservation functional board, and the self-heat-preservation functional board comprises a face board, a heat preservation layer and a back board from top to bottom; the thickness of the face plate and the back plate is 2-3 mm, and the face plate and the back plate are multi-layer extruded polymer plates. The heat preservation layer is composed of a polymeric membrane and a heat preservation phase change material, the polymeric membrane is a double-layer membrane, arc-shaped pits with the diameter of 8 + / -0.5 mm and the depth of 1-1.5 mm are evenly distributed in the surface of the base membrane, and the arc-shaped pits are filled with the heat preservation phase change material. The invention further discloses a preparation process of the multi-layer composite reinforced self-heat-preservation ground wallboard. All the layers are bonded through waterproof glue, the structure is stable, and the heat storage performance meets the requirement of the light heat preservation ground wallboard. The problems of optimizing and improving the structure and the performance of the light thermal insulation layer of the floor slab are hopefully solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building decoration materials, relates to floor and wall panels, and in particular to a multi-layer composite reinforced self-insulating floor and wall panel and a preparation process thereof. Background Art

[0002] my country's urban population is highly dense, with residential buildings predominantly consisting of multi-story and high-rise buildings. Residential floor slabs suffer from poor sound insulation, particularly impact sound absorption, a long-standing issue that has not been effectively addressed, severely impacting people's quality of life. Furthermore, in areas without heating, intermittent air conditioning is often used to achieve heating and cooling. However, most residential floor slabs lack lightweight insulation, and residents on upper and lower floors often don't have their air conditioners on at the same time. Heat can easily escape through the floor slab during these intermittent cycles.

[0003] Currently, urban residential floor slabs face challenges in optimizing and improving the lightweight insulation structure and performance. To meet the heat transfer coefficient requirements for residential floor slabs in the "Energy-Saving Design Standard for Residential Buildings in Hot Summer and Cold Winter Regions (JGJ134-2010)" and the "Jiangsu Province Residential Building Thermal Environment and Energy-Saving Design Standard (DGJ32 / J71-2014)," lightweight insulation must be added to the floor slabs. Most approaches involve laying lightweight polystyrene insulation boards on reinforced concrete, then applying lime mortar over the boards to smooth the floor. Because the lime mortar is poured onto the surface of the lightweight insulation boards, cracks are prone to forming around doorways, column corners, and other areas if the seams are not cut in a timely or correct manner.

[0004] To meet current energy-saving requirements in construction, it is necessary to avoid the severe homogeneity of wood flooring products and upgrade and enhance product functionality. Multi-layer composite reinforced self-insulating floor and wall panels offer both lightweight insulation and performance, effectively reducing the impact of heat loss between floors and creating a healthy, quiet, and comfortable indoor environment for consumers. At the same time, they address a series of current lightweight insulation issues in construction by using lightweight insulation functional floor and wall panels, making them not only decorative but also functional, such as lightweight insulation. Furthermore, the use of specialized lightweight insulation panels reduces the load-bearing capacity of individual floor slabs, making them safer and conserving resources while protecting the environment. Summary of the Invention

[0005] Aiming at the problems existing in optimizing and improving the lightweight insulation layer structure and lightweight insulation performance of urban residential building slabs, the present invention aims to disclose a multi-layer composite reinforced self-insulating wall panel.

[0006] The technical solution of the present invention is achieved by: A multi-layer composite reinforced self-insulating floor wall panel, including a self-insulating functional panel, on the surface of the self-insulating functional panel are decorative paper and density board A from top to bottom, and on the bottom surface of the self-insulating functional panel are density board B and balancing paper, wherein the self-insulating functional panel is composed of a panel, an insulation layer and a back panel from top to bottom; the thickness of the panel and the back panel is 2 to 3 mm, and they are multi-layer extruded polymer panels; the insulation layer is composed of a polymer film and an insulation phase change material, and the polymer film is a double-layer film, wherein the surface of the base film is evenly distributed with arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm, the arc-shaped pits are filled with insulation phase change material, and the face mask is tightly attached to the surface of the base film to seal the insulation phase change material in the pits.

[0007] In a preferred disclosed embodiment of the present invention, the multi-layer extruded polymer board constituting the face / back board has at least two layers, wherein the surface layer is polymethyl methacrylate (PMMA) and the remaining layers are acrylonitrile-butadiene-styrene copolymer (ABS).

[0008] In a preferred disclosed example of the present invention, the phase change thermal insulation material is any one or more of paraffin wax, expanded perlite, crystalline hydrated salt, etc., which is sieved and can melt and store heat when heated, and solidify and release heat when cooled.

[0009] In a preferred disclosed example of the present invention, the thermal insulation layer is placed between the front panel and the back panel, the distance between the front panel and the back panel is 1 to 1.5 mm, and the two are fixed with buckles.

[0010] In a preferred disclosed example of the present invention, the density board A and the density board B have a thickness of 1 to 3 mm, preferably 2 mm, a density of 850 to 1400 g / m³, and a water absorption thickness expansion rate of ≤5%.

[0011] In a preferred disclosed example of the present invention, the long sides of the multi-layer composite reinforced self-insulating wall panels are provided with tongue and groove.

[0012] The specific structure of the self-insulating functional board of the present invention can be found in CN219969092U.

[0013] The multi-layer composite reinforced self-insulating floor wall panel disclosed in the present invention comprises, from the upper surface layer to the lower surface layer, a wear-resistant impregnated paper layer, a self-insulating functional board layer, and a balancing paper moisture-proof layer.

[0014] (1) Product structure: Through the structure of "facing layer (face paper and density board pressed together) + self-insulating functional board layer + balancing layer (balancing paper and density board pressed together)", the product has strong stability, smooth surface, and is not easy to crack or debond. The surface finishing layer is a wear-resistant impregnated paper layer, which can not only simulate those natural precious tree species that are becoming increasingly rare and expensive, but also create a variety of more artistic and beautiful patterns and designs, saving resources and reducing production costs; (2) Middle self-insulating functional panel structure: The middle self-insulating functional panel is composed of a front panel and a back panel that are combined together by a snap-fit ​​structure to wrap a core layer with self-insulating material; (3) Multi-layer composite reinforced self-insulating floor and wall panel structure: The middle self-insulating functional panel layer is cold pressed / hot melt glued with the upper finishing layer and the lower balancing layer. The structure and size are stable, and the heat storage performance meets the requirements of lightweight insulation floor and wall panels.

[0015] The second object of the present invention is to disclose a preparation process of the multi-layer composite reinforced self-insulating wallboard, comprising the following steps: A. Preparation of upper facing paper and lower balancing paper: impregnate colored wood grain paper with glue and then spray wear-resistant material to make wear-resistant decorative paper; impregnate the balancing paper with glue, and the amount of glue is 140-150g / m 2 ; B. Hot pressing the upper wear-resistant decorative paper and the lower balancing layer: The upper wear-resistant decorative paper and the lower balancing paper are respectively hot pressed with density boards to obtain the upper decorative layer and the lower balancing layer; C. Cold pressing: upper wear-resistant finishing layer, lower balance layer, with the wear-resistant decorative layer as the surface layer, the self-insulating functional board in the middle, and the balance layer as the bottom layer, cold pressing forming; D. Balance, health, testing, packaging.

[0016] In a preferred disclosed example of the present invention, in step B, the hot pressing is performed with an upper mold temperature of 165-170°C, a lower mold temperature of 175-180°C, a pressing time of 35-40s, and a pressure of 25-30kg / cm².

[0017] In the preferred disclosed example of the present invention, in step C, the cold pressing can be divided into a hot melt glue process or a cold glue process, wherein the hot melt glue process is to heat the temperature to 140°C or above until the hot melt glue is dissolved, and then apply 40 to 50 g / m2 of glue on the surface of the density board, and press the three together; the cold glue process is to use modified polyurethane and acrylic glue to apply 40 to 50 g / m2 of glue on the surface of the density board, and press at 130 to 140°C for 3 to 4 minutes.

[0018] In the preferred disclosed example of the present invention, in step D, the curing is a process of placing the semi-finished large boards and strips in a static equilibrium for a period of time to release internal stress, which can make the wood and floor more balanced and stable.

[0019] The present invention combines a single fiberboard with a functional board to form a multi-layer composite reinforced self-insulating floor and wall panel. The filling materials such as paraffin and expanded perlite in the insulation layer melt and store heat when heated, and solidify and release heat when cooled, thereby ensuring the heat storage efficiency of the floor and wall panel. It is expected to solve the problems existing in optimizing and improving the lightweight insulation layer structure and lightweight insulation performance of urban residential floor slabs. Beneficial effects

[0020] Compared to existing technologies, the multi-layer composite reinforced self-insulating floor and wall panels of the present invention are composed of "upper and lower density boards + middle self-insulating functional board". The product structure is more stable, with high moisture and heat resistance and outstanding dimensional stability. The paraffin wax, expanded perlite and other filler materials in the core material melt and store heat when heated, and solidify and release heat when cooled, ensuring the heat storage efficiency of the floor and wall panels. The layers are bonded together with waterproof glue, resulting in a stable structure and heat storage performance that meets the requirements of lightweight insulated floor and wall panels. This is expected to solve the problems existing in optimizing and improving the lightweight insulation layer structure and lightweight insulation performance of urban residential floor slabs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 . Schematic diagram of the multi-layer composite reinforced self-insulating floor wall panel structure, where the names of the components are: 1. Decorative paper, 2. Density board A, 3. Panel, 4. Insulation layer, 5. Backboard, 6. Insulation phase change material, 7. Polymer film, 8. Density board B, 9. Balance paper. DETAILED DESCRIPTION

[0022] The present invention will be described in detail below with reference to the following examples so that those skilled in the art can better understand the present invention. However, the present invention is not limited to the following examples. Example 1

[0023] A multi-layer composite reinforced self-insulating floor wall panel, including a self-insulating functional panel, on the surface of the self-insulating functional panel are decorative paper 1 and density board A from top to bottom, and on the bottom surface of the self-insulating functional panel are density board B and balancing paper 9, wherein the self-insulating functional panel is composed of a panel 3, an insulation layer 4 and a back panel 5 from top to bottom; the panel 3 and the back panel 5 have a thickness of 2 to 3 mm and are multi-layer extruded polymer panels, the insulation layer is composed of a polymer film 7 and an insulation phase change material 6, the polymer film 7 is a double-layer film, wherein the surface of the base film is evenly distributed with arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm, the arc-shaped pits are filled with insulation phase change material 6, and the mask is tightly attached to the surface of the base film to seal the insulation phase change material in the pits. Example 2

[0024] A multi-layer composite reinforced self-insulating floor panel, comprising a self-insulating functional panel, wherein the surface of the self-insulating functional panel is provided with decorative paper 1 and density board A from top to bottom, and the bottom surface of the self-insulating functional panel is provided with density board B and balancing paper 9 from top to bottom, wherein the self-insulating functional panel is provided with a face plate 3, an insulating layer 4 and a back plate 5 from top to bottom; the face plate 3 and the back plate 5 are multi-layer extruded polymer panels with a thickness of 2 to 3 mm, and the multi-layer extruded polymer panels constituting the face / back plate have at least two layers, wherein the surface layer is polymethyl methacrylate (PMMA) and the remaining layers are acrylonitrile-butadiene-styrene copolymer (ABS); the insulating layer is provided with a polymer film 7 and an insulating phase change material 6, wherein the polymer film 7 is a double-layer film, wherein arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm are uniformly distributed on the surface of the base film, and the arc-shaped pits are filled with insulating phase change material 6, and the face film is tightly adhered to the surface of the base film to seal the insulating phase change material in the pits. Example 3

[0025] A multi-layer composite reinforced self-insulating floor panel, comprising a self-insulating functional panel, wherein the surface of the self-insulating functional panel is provided with decorative paper 1 and density board A from top to bottom, and the bottom surface of the self-insulating functional panel is provided with density board B and balancing paper 9 from top to bottom. The self-insulating functional panel comprises, from top to bottom, a face plate 3, an insulation layer 4, and a back plate 5; the face plate 3 and back plate 5 are 2-3 mm thick and are multi-layer extruded polymer panels. The multi-layer extruded polymer panels constituting the face plate / back plate have at least two layers, wherein the surface layer is polymethyl methacrylate (PMMA), and the remaining layers are acrylonitrile- Butadiene-styrene copolymer (ABS); the thermal insulation layer is composed of a polymer film 7 and a thermal insulation phase change material 6, the polymer film 7 is a double-layer film, wherein the surface of the base film is evenly distributed with arc-shaped pits with a diameter of 8±0.5mm and a depth of 1~1.5mm, and the arc-shaped pits are filled with thermal insulation phase change material 6, and the phase change thermal insulation material is any one or more of paraffin, expanded perlite, crystalline hydrated salt, etc., which are sieved and can melt and store heat when heated, and solidify and release heat when cooled; the facial mask is tightly covered on the surface of the base film, sealing the thermal insulation phase change material in the pits. Example 4

[0026] A multi-layer composite reinforced self-insulating floor panel, comprising a self-insulating functional panel, wherein the surface of the self-insulating functional panel is provided with decorative paper 1 and density board A from top to bottom, and the bottom of the self-insulating functional panel is provided with density board B and balancing paper 9 from top to bottom, wherein the self-insulating functional panel is provided with a panel 3, an insulation layer 4 and a back panel 5 from top to bottom; the panel 3 and the back panel 5 are 2 to 3 mm thick and are multi-layer extruded polymer panels, wherein the multi-layer extruded polymer panels constituting the surface / back panel have at least two layers, wherein the surface layer is polymethyl methacrylate (PMMA) and the remaining layers are acrylonitrile-butadiene-styrene copolymer (ABS) ); The distance between the panel 3 and the back panel 5 is 1 to 1.5 mm, and the two are fixed with buckles; the thermal insulation layer is composed of a polymer film 7 and a thermal insulation phase change material 6, and the polymer film 7 is a double-layer film, wherein the surface of the base film is evenly distributed with arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm, and the arc-shaped pits are filled with thermal insulation phase change material 6, and the phase change thermal insulation material is any one or more of paraffin, expanded perlite, crystalline hydrated salt, etc., which are sieved and can melt and store heat when heated, and solidify and release heat when cooled; the mask is tightly covered on the surface of the base film, and the thermal insulation phase change material is sealed in the pits. Example 5

[0027] A multi-layer composite reinforced self-insulating floor panel, comprising a self-insulating functional panel. Decorative paper 1 and density board A are arranged on the surface of the self-insulating functional panel from top to bottom, and density board B and balancing paper 9 are arranged on the bottom of the self-insulating functional panel. The density boards A and B have a thickness of 1 to 3 mm, a density of 850 to 1400 g / m³, and a water absorption thickness expansion rate of ≤5%. The self-insulating functional panel comprises, from top to bottom, a face plate 3, an insulation layer 4, and a back plate 5. The face plate 3 and back plate 5 are 2 to 3 mm thick and are multi-layer extruded polymer panels. The multi-layer extruded polymer panels constituting the face plate / back plate have at least two layers, of which the surface layer is polymethyl methacrylate (PMMA). , the remaining layers are acrylonitrile-butadiene-styrene copolymer (ABS); the distance between the panel 3 and the back panel 5 is 1 to 1.5 mm, and the two are fixed with buckles; the thermal insulation layer is composed of a polymer film 7 and a thermal insulation phase change material 6, and the polymer film 7 is a double-layer film, wherein the surface of the base film is evenly distributed with arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm, and the arc-shaped pits are filled with thermal insulation phase change material 6, and the phase change thermal insulation material is any one or more of paraffin, expanded perlite, crystalline hydrated salt, etc., which are sieved and can melt and store heat when heated, and solidify and release heat when cooled; the mask is tightly attached to the surface of the base film, and the thermal insulation phase change material is sealed in the pits. Example 6

[0028] A preparation process of a multi-layer composite reinforced self-insulating wall panel comprises the following steps: A. Preparation of upper facing paper and lower balancing paper: impregnate colored wood grain paper with glue and then spray wear-resistant material to make wear-resistant decorative paper; impregnate the balancing paper with glue, and the amount of glue is 140-150g / m 2 ; B. Hot pressing the upper wear-resistant decorative paper and the lower balancing layer: The upper wear-resistant decorative paper and the lower balancing paper are respectively hot pressed with density boards to obtain the upper decorative layer and the lower balancing layer; C. Cold pressing: upper wear-resistant finishing layer, lower balance layer, with the wear-resistant decorative layer as the surface layer, the self-insulating functional board in the middle, and the balance layer as the bottom layer, cold pressing forming; D. Balance, health, testing, packaging.

[0029] Structural design of multi-layer composite reinforced self-insulating wall panels The front and back panels of the self-insulating functional board are composite materials of polymethyl methacrylate (PMMA, commonly known as acrylic) and acrylonitrile-butadiene-styrene copolymer (ABS). They are extruded into multi-layer extruded materials at high temperature using a high-temperature extruder, with a thickness of 2 to 3 mm.

[0030] The core material of the self-insulating functional panel consists of two parts: a filling material and a covering material. The covering material is polyethylene film (PE), made from high-density polyethylene (HDPE) and extruded at 230°C. During the molding process, hot air is blown into a hemispherical space with a diameter of 8mm and a depth of 1-1.5mm during contact with the forming roller. This space is filled with filling material and then covered with a flat polyethylene film (PE) at high temperature to ensure that the filling material is evenly distributed within the board and does not overflow during temperature changes. The filling material is a thermal insulation phase change material such as paraffin wax and expanded perlite. These materials melt when heated and store heat, and solidify and release heat when cooled.

[0031] Wear-resistant decorative paper and balance paper are selected and hot-pressed with density board to obtain the upper decorative layer and lower balance layer. The density board is density fiberboard with a thickness of 2mm, a density of 850-1400g / m³, and a water absorption thickness expansion rate of ≤5%.

[0032] The upper wear-resistant decorative layer and the lower balancing layer are formed by cold pressing, with the wear-resistant decorative layer as the surface layer, the thermal insulation base material layer in the middle, and the balancing layer as the bottom layer. Cold pressing can use either hot melt adhesive or cold adhesive. The hot melt adhesive process heats the temperature to 140°C or above, dissolves the hot melt adhesive, and then applies 40-50g / m2 of adhesive to the surface of the density board. The three are then pressed together. The cold adhesive process uses modified polyurethane and acrylic adhesive to apply 40-50g / m2 of adhesive to the surface of the density board, and presses at 130-140°C for 3-4 minutes.

[0033] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the description of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A multi-layer composite reinforced self-insulating floor panel, comprising a self-insulating functional panel, wherein the surface of the self-insulating functional panel is provided with decorative paper (1) and density board A (2) from top to bottom, and the bottom surface of the self-insulating functional panel is provided with density board B (8) and balancing paper (9), characterized in that: The self-insulating functional panel comprises, from top to bottom, a panel (3), an insulating layer (4) and a back panel (5); the panel (3) and the back panel (5) are 2 to 3 mm thick and are multi-layer extruded polymer panels; the insulating layer (4) is composed of a polymer film (7) and an insulating phase change material (6); the polymer film (7) is a double-layer film, wherein arc-shaped pits with a diameter of 8±0.5 mm and a depth of 1 to 1.5 mm are uniformly distributed on the surface of the base film, and the arc-shaped pits are filled with the insulating phase change material (6); the mask is tightly attached to the surface of the base film, and the insulating phase change material is sealed in the pits.

2. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The multi-layer extruded polymer board has at least two layers, wherein the surface layer is polymethyl methacrylate (PMMA) and the remaining layers are acrylonitrile-butadiene-styrene copolymer (ABS).

3. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The phase change thermal insulation material is any one or more of paraffin wax, expanded perlite, and crystalline hydrated salt, which are sieved.

4. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The thermal insulation layer (4) is placed between the panel (3) and the back panel (5), the distance between the panel (3) and the back panel (5) is 1 to 1.5 mm, and the two are fixed with buckles.

5. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The density board A (2) and the density board B (8) have a thickness of 1 to 3 mm.

6. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The density board A (2) and density board B (8) have a thickness of 2 mm.

7. The multi-layer composite reinforced self-insulating wallboard according to claim 1, characterized in that: The long sides of the multi-layer composite reinforced self-insulating wallboard are provided with tongue and groove.

8. A process for preparing the multi-layer composite reinforced self-insulating wallboard according to any one of claims 1 to 7, characterized in that: The steps include: A. Preparation of upper facing paper and lower balancing paper: impregnate colored wood grain paper with glue and then spray wear-resistant material to make wear-resistant decorative paper; impregnate the balancing paper with glue, and the amount of glue is 140-150g / m 2 ; B. Hot pressing the upper wear-resistant decorative paper and the lower balancing paper: The upper wear-resistant decorative paper and the lower balancing paper are respectively hot pressed and laminated with density boards to obtain the upper decorative layer and the lower balancing layer; C. Cold pressing: upper wear-resistant finishing layer, lower balance layer, with the wear-resistant decorative layer as the surface layer, the self-insulating functional board in the middle, and the balance layer as the bottom layer, cold pressing forming; D. Balance, health, testing, packaging.

9. The process for preparing the multi-layer composite reinforced self-insulating wallboard according to claim 8, characterized in that: In step B, the hot pressing is performed at a temperature of 165-170°C on the upper mold and 175-180°C on the lower mold, a pressing time of 35-40s, and a pressure of 25-30kg / cm².

10. The preparation process of the multi-layer composite reinforced self-insulating wallboard according to claim 8, characterized in that: In step C, the cold pressing can be divided into a hot melt glue process or a cold glue process. The hot melt glue process is to heat the temperature to 140°C or above, dissolve the hot melt glue, and then apply 40-50g / ㎡ of glue on the surface of the density board, and press the three together. The cold glue process is to apply 40-50g / ㎡ of modified polyurethane and acrylic glue on the surface of the density board, and press at 130-140°C for 3-4 minutes.

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