High-wear-resistance flame-retardant anti-skid antistatic hot-pressing curing composite board

Abstract

The utility model provides a highly wear-resistant flame-retardant anti-slip antistatic hot-pressing curing composite board, which comprises a surface layer, a middle layer and a bottom layer, the surface layer comprises a plurality of surface paperboards which are sequentially adhered along the vertical direction, and each surface paperboard comprises at least one piece of surface paper and first composite adhesive layers positioned on the upper side and the lower side of the surface paper; the middle layer comprises a plurality of material plates which are bonded in sequence; the bottom layer comprises a plurality of bottom paperboards which are sequentially bonded in the vertical direction, and each bottom paperboard comprises at least one piece of bottom paper and second composite adhesive layers located on the upper side and the lower side of the bottom paper; wherein the first composite adhesive layer and the second composite adhesive layer are both internally provided with granular or linear reinforcing filler. Due to the multi-layer structure of the plurality of surface paperboards, the plurality of material boards and the plurality of bottom paperboards, the composite board has relatively low hygroscopic expansion rate and cold and hot shrinkage rate, and relatively high anti-static, wear-resistant, vibration-proof, smoke and fire-proof properties and the like, so that the composite board can adapt to the application fields with relatively large humidity and temperature differences.

Description

Technical Field

[0001] The utility model relates to the technical field of composite materials, in particular to a highly wear-resistant, flame-retardant, anti-skid and anti-static hot-pressing cured composite plate. Background Art

[0002] Trains and transport vehicles are used to connect the north and the south. They can carry goods and people, thereby transporting people and goods on a large scale, realizing the transportation of materials and personnel in daily life, and promoting economic development.

[0003] The interior surfaces of trains and transport vehicles are all equipped with interior panels, because trains and transport vehicles need to go through different regions, and the temperature difference between different regions varies greatly, and they will be affected by vibration during driving. Therefore, the interior panels need to have low moisture absorption expansion rate and thermal contraction rate, and also require high anti-static, wear resistance, washing resistance, anti-penetration, dustproof, vibration-proof, anti-smoke and fire, and anti-open flame properties.

[0004] In the related art, the interior trim panels are formed by using a variety of special papers through phenolic resin, melamine resin and other materials, and then manufactured under high temperature and high pressure. In addition, the interior trim panels also use nanotechnology to increase the anti-pollution, wear resistance and static charge elimination properties of the interior trim panels. However, the structure of the interior trim panels is complex and the production cost is high. Utility Model Content

[0005] The purpose of the present application is to provide a highly wear-resistant, flame-retardant, anti-skid and anti-static hot-pressed cured composite board with low hygroscopic expansion rate and thermal shrinkage rate, strong anti-static and wear-resistant properties, simple structure and low production cost.

[0006] In order to solve the above technical problems, this application adopts the following technical solutions:

[0007] According to one aspect of the present application, the present application provides a highly wear-resistant, flame-retardant, non-slip and anti-static hot-pressed cured composite board material, which includes: a surface layer, an intermediate layer and a bottom layer, the surface layer includes a plurality of surface paper boards bonded in sequence along the up and down directions, the surface paper boards include at least one surface paper board and a first composite adhesive layer located on the upper and lower sides of the surface paper board; the surface paper board is at least one of wear-resistant paper, triamine paper and kraft paper; the intermediate layer includes a plurality of material boards bonded in sequence; the bottom layer includes a plurality of bottom paper boards bonded in sequence along the up and down directions, the bottom paper boards include at least one bottom paper board and a second composite adhesive layer located on the upper and lower sides of the bottom paper board; the bottom paper board is at least one of wear-resistant paper, triamine paper and kraft paper; wherein, granular or linear reinforcing fillers are provided in both the first composite adhesive layer and the second composite adhesive layer.

[0008] In some embodiments, the reinforcing filler is at least one of a fireproof filler and an antistatic filler; the fireproof filler is at least one of talcum powder, aluminum hydroxide particles, and magnesium silicate particles; the antistatic filler is at least one of a metal filler, a metal oxide filler, a carbon filler, and a composite filler.

[0009] In some embodiments, a metal mesh is further disposed in the surface layer. The metal mesh is located in the surface layer, and both upper and lower sides of the metal mesh are bonded to the surface paper.

[0010] In some embodiments, the plurality of face paperboards include a first face paperboard, a second face paperboard, and a third face paperboard, and each of the first face paperboard, the second face paperboard, and the third face paperboard has a face paper disposed therein.

[0011] In some embodiments, the first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the kraft paper; or, the first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the wear-resistant paper; or, the first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the triamine paper.

[0012] In some embodiments, the bottom layer includes the wear-resistant paper or the triamine paper; or, the bottom layer includes the triamine paper and the wear-resistant paper; or, the bottom layer includes the kraft paper and the triamine paper.

[0013] In some embodiments, the second composite adhesive layer is a phenolic resin film.

[0014] In some embodiments, the surface layer, the middle layer, and the bottom layer are sprayed around the sides to form a paint layer.

[0015] In some embodiments, the upper surface of the surface layer is provided with anti-slip grooves.

[0016] In some embodiments, the upper and lower surfaces of the intermediate layer are frosted to form an intermediate sanded layer.

[0017] It can be seen from the above technical solution that the present application has at least the following advantages and positive effects:

[0018] In the present application, on the one hand, the hot-pressed cured composite sheet is composed of a middle layer and a plurality of surface paper layers and a bottom paper layer on both sides of the middle layer, and then formed after hot-pressing and curing. It has a simple structure and low production cost, which is convenient for production and expansion of the market scope. On the other hand, the metal mesh is located in the surface layer and is tightly bonded to the surface layer after hot-pressing and curing, so that the hot-pressed cured composite sheet has a lower moisture absorption expansion rate, cold and hot shrinkage rate, higher anti-static, wear resistance, vibration resistance, anti-smoke and fire, and anti-open flame properties, so as to be able to adapt to the application fields with large humidity and temperature differences. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the composite board of the utility model.

[0020] Figure 2 It is a structural schematic diagram of the surface layer of the utility model.

[0021] The following are the descriptions of the reference numerals:

[0022] 100, surface layer; 110, first paperboard; 120, second paperboard; 130, third paperboard; 200, middle layer; 210, material board; 300, bottom layer. DETAILED DESCRIPTION

[0023] Typical implementations that embody the features and advantages of the present application will be described in detail in the following description. It should be understood that the present application can have various changes in different implementations without departing from the scope of the present application, and the descriptions and illustrations therein are essentially used for illustrative purposes rather than for limiting the present application.

[0024] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0025] In the related technology, trucks and trains often travel between places with large temperature differences, and due to the large flow of people and high humidity in the vehicles, the materials of the interior panels of the vehicles (specifically including the roof panels, side wall panels, etc.) and some office furniture are not only required to be light and beautiful, but also required to have high wear resistance, high temperature resistance, cleaning resistance, impermeability, fire and smoke resistance, low moisture absorption and expansion rate, low cold and hot shrinkage rate and other characteristics.

[0026] In addition, holes are usually required on the interior panels to install some metal parts. When the vehicle is often driven on roads with different road conditions to be affected by vibration, the interior panels of the vehicle need stronger nail holding force.

[0027] Figure 1 It is a structural schematic diagram of the composite board of the utility model.

[0028] See also Figure 1 For ease of description and understanding, the state of the composite board being laid flat on the ground is taken as a reference, the direction of the composite board relative to the ground is referred to as the upper side in the following text, and the direction away from the upper side is referred to as the lower side in the following text.

[0029] Figure 2 It is a structural schematic diagram of the surface layer of the utility model.

[0030] See also Figure 1 and Figure 2 The present application provides a highly wear-resistant, flame-retardant, anti-skid and anti-static hot-pressing cured composite board (hereinafter referred to as the composite board), which is formed after hot-pressing curing, and includes a surface layer 100, an intermediate layer 200 and a bottom layer 300. The surface layer 100 includes a plurality of face paperboards bonded in sequence along the up-down direction, the face paperboard includes at least one face paper and a first composite adhesive layer (not shown in the figure) located on the upper and lower sides of the face paper; the face paper is at least one of wear-resistant paper, melamine paper (i.e., the abbreviation of melamine paper) and kraft paper; the intermediate layer 200 includes a plurality of material boards 210 bonded in sequence; the bottom layer 300 includes a plurality of bottom paperboards bonded in sequence along the up-down direction, the bottom paperboard includes at least one bottom paper and a second composite adhesive layer (not shown in the figure) located on the upper and lower sides of the bottom paper; the bottom paper is at least one of wear-resistant paper, melamine paper and kraft paper; wherein, granular or linear reinforcing fillers (not shown in the figure) are provided in the first composite adhesive layer and the second composite adhesive layer.

[0031] A plurality of surface paper boards and a plurality of bottom paper boards are respectively bonded to the upper and lower sides of the middle layer 200. The plurality of surface paper boards, the plurality of material boards 210 and the plurality of bottom paper boards are bonded and heat-pressed to form a composite board with the surface layer 100, the middle layer 200 and the bottom layer 300. The multi-layer composite structure can effectively improve the structural strength, wear resistance and nail holding force of the composite board, and the composite structure after heat-pressing and curing has extremely high waterproof and heat-insulating properties to reduce the moisture absorption expansion rate and the cold and hot shrinkage rate of the composite board.

[0032] At the same time, each face paper board of the composite board includes a face paper and a first composite adhesive layer located on both sides of the face paper, and each bottom paper board includes a bottom paper and a second composite adhesive layer located on both sides of the bottom paper. Multiple face paper sheets and multiple bottom paper sheets are tightly bonded during the hot pressing and curing process to further improve the wear resistance, high temperature resistance, cleaning resistance, impermeability, and fire resistance of the composite board.

[0033] In addition, granular and linear reinforcing fillers are arranged in the first composite adhesive layer and the second composite adhesive layer to further improve the wear resistance, nail holding force, fire resistance and water resistance of the composite board according to the specific use environment and requirements, and reduce the moisture absorption expansion rate and the thermal shrinkage rate.

[0034] Finally, the structure of the composite board is simple. It is made by bonding multiple material boards 210, bonding multiple surface papers on the upper side of the material board 210 through a first composite adhesive layer, and bonding multiple bottom papers on the lower side of the material board 210 through a second composite adhesive layer, so as to form a composite board after hot pressing and curing. The production cost is low, which facilitates production and manufacturing and expands the market scope.

[0035] See also Figure 1 and Figure 2 In this embodiment, the middle layer 200 includes a plurality of material boards 210, and the plurality of material boards 210 are all arranged horizontally and bonded to each other. The plurality of material boards 210 may optionally include wood veneers, bamboo veneers, bamboo-wood composite boards, and the like.

[0036] In some embodiments, the upper and lower surfaces of the middle layer 200 are frosted to form an intermediate sanding layer (not shown in the figure) to improve the surface roughness of the middle layer 200, thereby improving the connection strength between the middle layer 200 and the surface layer 100 and the bottom layer 300. In other embodiments, in the middle layer 200, the outer side surface of the outermost material plate 210 is frosted to form an intermediate sanding layer to improve the connection strength between the material plate 210 and the surface paper and the bottom paper.

[0037] In some embodiments, the texture directions between adjacent material plates 210 are staggered to improve the structural strength of the middle layer 200, thereby improving the load-bearing capacity, deformation resistance, and vibration resistance of the composite plate.

[0038] In this embodiment, the composite sheet can be formed by hot pressing in one step or in multiple steps.

[0039] See also Figure 1 and Figure 2 In this embodiment, the surface layer 100 includes a plurality of surface paperboards. In the direction from outside to inside, the plurality of surface paperboards include a first surface paperboard 110, a second surface paperboard 120 and a third surface paperboard 130 in sequence, and at least one side of paper is arranged in each of the first surface paperboard 110, the second surface paperboard 120 and the third surface paperboard 130. The upper and lower sides of the surface paper in the first surface paperboard 110, the second surface paperboard 120 and the third surface paperboard 130 are coated with adhesive, and the first composite adhesive layer is formed after the adhesive is cured. Granular or linear reinforcing fillers are arranged in the adhesive. When the adhesive is hot-pressed and cured, the hot-pressed and cured adhesive can fully penetrate into the surface paper and the reinforcing fillers, which can effectively improve the structural strength, wear resistance and corrosion resistance of the surface paperboard, and make the surface layer 100 have a lower hygroscopic expansion rate and cold and hot shrinkage rate.

[0040] Adhesives include resin adhesives, and commonly used resin adhesives are phenolic resins and phenolic amine resins.

[0041] In some embodiments, the first paperboard 110, the second paperboard 120 and the third paperboard 130 all include a paper. The first paperboard 110 includes a wear-resistant paper, the second paperboard 120 includes a tri-amine paper, and the third paperboard 130 includes a kraft paper.

[0042] Wear-resistant paper can effectively improve the wear resistance, structural strength and waterproof performance of the composite board. Triamine paper is bonded to the side of the wear-resistant paper facing the material plate 210. Triamine paper has extremely high wear resistance, heat resistance, flame retardancy, water resistance, chemical pollution resistance and other properties, so as to improve the wear resistance, heat resistance, flame retardancy, water resistance and corrosion resistance of the composite board, and can reduce the hygroscopic expansion rate and hot and cold shrinkage rate of the composite board, effectively preventing the deformation of the composite board. Kraft paper is bonded between the triamine paper and the material plate 210 to effectively improve the tear resistance, rupture resistance and dynamic strength of the composite board.

[0043] At the same time, because the kraft paper is attached to the middle sanding layer and has extremely high tear resistance, rupture resistance and dynamic strength, after the kraft paper and the middle sanding layer are hot-pressed and cured, the connection strength between the middle layer 200 and the surface layer 100 can be ensured while also ensuring the overall integrity of the kraft paper, thereby improving the structural strength of the surface layer 100.

[0044] In some embodiments, the first paperboard 110 includes a wear-resistant paper, the second paperboard 120 includes a tri-amine paper, and the third paperboard 130 includes a wear-resistant paper.

[0045] In some other embodiments, the first paperboard 110 includes a wear-resistant paper, the second paperboard 120 includes a tri-amine paper, and the third paperboard 130 includes a tri-amine paper.

[0046] In other embodiments, the first paperboard 110, the second paperboard 120 and the third paperboard 130 each include multiple paper sheets, and a first composite adhesive layer is provided on the upper and lower sides of the multiple paper sheets to further improve the flame retardant, wear-resistant, corrosion-resistant and waterproof properties of the composite board.

[0047] In other embodiments, a plurality of wear-resistant papers are arranged in the first paperboard 110, and the first composite adhesive layer is arranged on both the upper and lower sides of the plurality of wear-resistant papers. A plurality of triamine papers are arranged in the second paperboard 120, and the first composite adhesive layer is arranged on both the upper and lower sides of the plurality of triamine papers. A plurality of kraft papers are arranged in the third paperboard 130, and the first composite adhesive layer is arranged between the first paperboard 110, the second paperboard 120, and the third paperboard 130 to connect with each other.

[0048] In some other embodiments, the first paperboard 110 includes wear-resistant paper, tri-amine paper and kraft paper in sequence from top to bottom, and the second paperboard 120 and the third paperboard 130 include tri-amine paper and kraft paper in sequence.

[0049] In other embodiments, the first paperboard 110 is provided with wear-resistant paper, tri-amine paper and kraft paper in sequence from top to bottom, the second paperboard 120 includes tri-amine paper and kraft paper in sequence, and the third paperboard 130 is provided with at least one kraft paper.

[0050] In other embodiments, the number of paperboard layers in the surface layer 100 can be selected according to actual needs.

[0051] In some embodiments, the first composite adhesive layer is formed after hot pressing and curing, so that the pores on the outer surface of the surface layer 100 are small and not easily contaminated, so as to effectively improve the water resistance and pollution resistance of the composite board.

[0052] See also Figure 1 and Figure 2 In this embodiment, a metal mesh is also provided in the surface layer 100. The metal mesh is located in the surface layer 100, and the upper and lower sides of the metal mesh are bonded to the surface paper. After the metal mesh is bonded between two adjacent paperboards, it is subjected to a hot pressing curing treatment so that the metal mesh is tightly connected to the first composite adhesive layer. On the one hand, the structural strength, fire resistance, waterproof performance, and vibration resistance of the composite board can be improved. On the other hand, the charge transfer between the metal mesh and the reinforcing filler can be carried out, thereby further improving the antistatic performance.

[0053] See also Figure 1 and Figure 2 In this embodiment, the upper surface of the surface layer 100 is also provided with anti-skid patterns (not shown in the figure) to improve the surface wear resistance and anti-skid properties of the composite board. In some embodiments, the outer surface of the first composite adhesive layer on the upper side of the first paperboard 110 is provided with concave and / or convex anti-skid patterns.

[0054] See also Figure 1 and Figure 2 In this embodiment, the bottom layer 300 includes a plurality of bottom paperboards. Each of the plurality of bottom paperboards includes at least one bottom paper. The upper and lower sides of the bottom paper are coated with adhesive, and the adhesive is hot-pressed and cured to form a second composite adhesive layer to bond the plurality of bottom paperboards and the bottom layer 300 and the middle layer 200. The bottom paper includes at least one of wear-resistant paper, triamine paper and kraft paper.

[0055] In some embodiments, the bottom layer 300 includes a wear-resistant paper and a second composite adhesive layer disposed on the upper and lower sides of the wear-resistant paper. The wear-resistant paper can effectively increase the friction between the composite board and the ground, thereby increasing the connection strength between the composite board and the ground, facilitating the installation of the composite board and preventing the composite board from sliding. In addition, the wear-resistant paper can also increase the structural strength of the bottom layer 300, thereby increasing the wear resistance of the composite board.

[0056] In some embodiments, the bottom layer 300 includes a triamine paper and a second composite adhesive layer disposed on the upper and lower sides of the triamine paper, thereby improving the wear resistance, heat resistance, water resistance, chemical pollution resistance and other properties of the composite board.

[0057] In some embodiments, the bottom layer 300 includes a triamine paper and a wear-resistant paper, and the second composite adhesive layer is disposed on both the upper and lower sides of the triamine paper and the wear-resistant paper. The triamine paper is located between the wear-resistant paper and the middle layer 200. Thus, while ensuring the wear resistance, anti-skid property and structural strength of the bottom layer 300, the heat resistance, water resistance and chemical pollution resistance of the bottom layer 300 are further improved.

[0058] In other embodiments, the bottom layer 300 includes a kraft paper and a triamine paper, and the upper and lower sides of the kraft paper and the triamine paper are both provided with a second composite adhesive layer. The kraft paper is attached to the middle layer 200. Because the kraft paper is attached to the middle sanding layer, and the kraft paper has extremely high tear resistance, crack resistance and dynamic strength, after the kraft paper and the middle sanding layer are hot-pressed and cured, the connection strength between the middle layer 200 and the bottom layer 300 can be ensured, while the overall integrity of the kraft paper can also be ensured, so as to improve the structural strength of the bottom layer 300.

[0059] In some embodiments, the gluing and laying order of the surface paper and the bottom paper from bottom to top is not limited to one method, and various paper materials can be matched according to the application scenario.

[0060] In the related art, wear-resistant paper can be formed by impregnation or bonding of melamine resin, urea-formaldehyde resin, phenolic resin, epoxy resin, MDI glue, polyurethane glue. Triamine paper can be formed by impregnation or bonding of melamine resin, urea-formaldehyde resin, phenolic resin, epoxy resin, MDI glue, polyurethane glue. Kraft paper can be formed by impregnation or bonding of melamine resin, urea-formaldehyde resin, phenolic resin, epoxy resin, MDI glue, polyurethane glue.

[0061] In this embodiment, the second composite adhesive layer is a phenolic resin film. Phenolic resin is coated on the upper and lower sides of the base paper, and after hot pressing and curing, a phenolic resin film is formed on the upper and lower sides of the base paper. The base paper and the phenolic resin film connected to the upper and lower sides thereof form a base paper board.

[0062] In this embodiment, the surface layer 100, the middle layer 200 and the bottom layer 300 are sprayed to form a paint layer, thereby improving the waterproof performance, fireproof performance and corrosion resistance of the composite floor. In some embodiments, the surface layer 100, the middle layer 200 and the bottom layer 300 are sprayed with waterproof paint, fireproof paint and anti-corrosion paint to form a paint layer.

[0063] In this embodiment, granular or linear reinforcing fillers are provided in the first composite adhesive layer and the second composite adhesive layer to improve the fire resistance, antistatic performance, wear resistance, corrosion resistance, etc. of the composite board. Granular reinforcing materials include both block structures and powder structures.

[0064] The reinforcing filler is at least one of a fireproof filler and an antistatic filler.

[0065] In some embodiments, the fireproof filler is at least one of talc powder, aluminum hydroxide particles, and magnesium silicate particles.

[0066] In some embodiments, the antistatic filler includes at least one of a metal filler, a metal oxide filler, a carbon-based filler, and a composite filler.

[0067] Metal fillers mainly include silver, nickel and copper, among which silver powder has high chemical stability and good conductivity.

[0068] Carbon fillers mainly include carbon black and graphite, which can be divided into two categories according to their shapes: powder particles and fibers. Carbon fillers have excellent weather resistance, chemical pollution resistance and antistatic properties, low cost, abundant sources and appropriate dosage.

[0069] Metal oxide conductive fillers mainly include tin oxide, lead oxide, zinc oxide, cobalt oxide, etc. Metal oxide conductive fillers have the advantages of low density and good stability in the air. Among them, pure tin oxide is an insulator. Only when their composition deviates from the chemical ratio, lattice defects are generated and doping is performed, can they become semiconductors.

[0070] Composite fillers can be divided into composite powders and composite fibers according to their shapes. Composite powders are powdered particles in which each particle is composed of two or more different materials, and their particle size must be large enough to show various macroscopic properties. Metal-coated composite powders are composite powders formed by coating metal on each core particle, which have the excellent properties of both the plated metal and the core. According to the different core materials, metal-coated composite powders are generally divided into three categories: metal-metal, metal-non-metal, and metal-ceramic, such as glass beads, copper powder and mica powder coated with silver powder, and carbon black coated with silver powder. In addition, there are also composite conductive powders with metal oxides as the outer shell and silicon or silicon compounds, TiO2, etc. as the inner shell. This composite filler can effectively ensure the conductive performance while reducing the cost of conductive fillers.

[0071] There are many types of composite fibers, such as nylon, glass fiber, carbon fiber coated with metal or metal oxide. Coating Cu, Ni with polyacrylic fiber or plating it on the outside of Cu can keep the internal copper layer from being oxidized, making it have stable conductivity. Another example is using chemical plating to deposit a metal coating on glass fiber to obtain metal-plated conductive glass fiber, which is used as an antistatic composite filler.

[0072] In some embodiments, the reinforcing fillers in the first composite adhesive layer and the second composite adhesive layer are the same. In other embodiments, the reinforcing fillers in the first composite adhesive layer and the second composite adhesive layer can be selected according to actual needs.

[0073] See also Figure 1 to Figure 2 In this embodiment, multiple material plates 210 are first bonded and heat-pressed to form the middle layer 200. The upper and lower surfaces of the middle layer 200 are then frosted to form a middle frosted layer to improve the connection strength between the middle layer 200 and the surface layer 100 and the bottom layer 300, thereby improving the structural strength and vibration resistance of the composite plate.

[0074] Afterwards, a plurality of face papers are bonded to the upper surface of the middle layer 200, and a plurality of bottom papers are bonded to the lower surface of the middle layer 200. The first composite adhesive layer is provided on both the upper and lower sides of the plurality of face papers for connection, and the second composite adhesive layer is provided on both the upper and lower sides of the plurality of bottom papers for connection. Reinforced fillers are provided in the first composite adhesive layer and the second composite adhesive layer, so that the wear resistance, fire resistance, anti-skid performance, flame retardant performance, surface hardness, high temperature resistance, impact resistance, water resistance, corrosion resistance and antistatic performance of the composite board can be effectively enhanced, and the hygroscopic expansion rate and the cold and hot shrinkage rate of the composite board can be reduced.

[0075] Furthermore, a metal mesh is provided in the surface layer 100 to further improve the antistatic performance, structural strength, vibration resistance and wear resistance of the composite board. Finally, the composite board has a simple structure, a simple production process and a low production cost.

[0076] In the present application, on the one hand, the hot-pressed cured composite sheet is composed of the middle layer 200 and multiple surface paper layers and bottom paper layers on the upper and lower sides of the middle layer 200, and then formed after hot-pressing and curing. It has a simple structure and low production cost, which is convenient for production and expansion of the market scope. On the other hand, the metal mesh is located in the surface layer 100, and is tightly bonded to the surface layer 100 after hot-pressing and curing, so that the hot-pressed cured composite sheet has extremely low moisture absorption expansion rate, cold and hot shrinkage rate, high anti-static, wear resistance, vibration resistance, anti-smoke and fire, and anti-open flame properties, so as to be able to adapt to the application fields with large humidity and temperature differences.

[0077] Although the present application has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the present application can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A highly wear-resistant, flame-retardant, anti-skid and anti-static hot-pressing cured composite sheet, characterized in that: include: The surface layer comprises a plurality of face paperboards bonded in sequence along the up-down direction, wherein the face paperboard comprises at least one face paper and a first composite adhesive layer located on the upper and lower sides of the face paper; the face paper is at least one of wear-resistant paper, triamine paper and kraft paper; an intermediate layer comprising a plurality of material sheets bonded in sequence; The bottom layer comprises a plurality of bottom paperboards bonded in sequence along the up-down direction, wherein the bottom paperboard comprises at least one bottom paper and a second composite adhesive layer located at the upper and lower sides of the bottom paper; the bottom paper is at least one of wear-resistant paper, triamine paper and kraft paper; Wherein, granular or linear reinforcing fillers are arranged in the first composite adhesive layer and the second composite adhesive layer.

2. The composite sheet material according to claim 1, characterized in that: The reinforcing filler is one of a fireproof filler and an antistatic filler; the fireproof filler is one of talcum powder, aluminum hydroxide particles, and magnesium silicate particles; the antistatic filler is one of a metal filler, a metal oxide filler, a carbon filler, and a composite filler.

3. The composite sheet material according to claim 1, characterized in that: A metal mesh is also arranged in the surface layer. The metal mesh is located in the surface layer, and both upper and lower sides of the metal mesh are bonded to the surface paper.

4. The composite sheet material according to claim 1, characterized in that: The plurality of face paperboards include a first face paperboard, a second face paperboard and a third face paperboard, wherein each of the first face paperboard, the second face paperboard and the third face paperboard has a face paper disposed therein.

5. The composite sheet material according to claim 4, characterized in that: The first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the kraft paper; or, The first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the wear-resistant paper; or, The first paperboard includes the wear-resistant paper, the second paperboard includes the triamine paper, and the third paperboard includes the triamine paper.

6. The composite sheet material according to claim 1, characterized in that: The bottom layer includes the wear-resistant paper or the triamine paper; or, The bottom layer includes the triamine paper and the wear-resistant paper; or, The bottom layer includes the kraft paper and the triamine paper.

7. The composite sheet material according to claim 1, characterized in that: The second composite adhesive layer is a phenolic resin film.

8. The composite sheet material according to claim 1, characterized in that: The surface layer, the middle layer and the bottom layer are sprayed around the sides to form a paint layer.

9. The composite sheet material according to claim 1, characterized in that: The upper surface of the surface layer is provided with anti-slip grooves.

10. The composite sheet material according to claim 1, characterized in that: The upper and lower surfaces of the middle layer are frosted to form a middle sanding layer.

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