High-wear-resistance composite board and preparation method thereof

Abstract

The invention discloses a high-wear-resistance composite board and a preparation method thereof. The composite board is formed by hot-pressing and curing a surface layer and a plurality of layers of veneers, the surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The high-wear-resistance composite board disclosed by the invention is good in wear resistance, and also has relatively good toughness and internal bonding strength. The toughness of the material is improved through combined use of the N, N, N ', N'-tetraglycidyl-2, 5-bis (2-trifluoromethyl-4-aminophenoxy) toluene epoxy resin and the bisphenol A epoxy resin, and the internal bonding strength of the material is improved through combined use of the 1, 4-bis (2-trifluoromethyl-4-aminophenoxy) benzene and the methylhexahydrophthalic anhydride. Boron nitride and tungsten trioxide are combined for use, so that the wear resistance of the material is improved, and synergistic interaction is achieved.

Description

Technical Field

[0001] This invention belongs to the field of furniture board technology, specifically relating to a high wear-resistant composite board and its preparation method. Background Technology

[0002] The abrasion resistance of wood-based panels is a key issue limiting their lifespan and application scenarios. Its causes are complex, involving factors such as the inherent properties of the material, processing techniques, and the usage environment. For solid wood panels, such as common solid wood flooring, the abrasion resistance primarily relies on the surface paint coating. However, the abrasion resistance of this coating is typically low, generally only 100 to 300 revolutions. This means that in daily use, dragging tables and chairs or scratching with hard objects can easily wear down the paint film, exposing the internal wood structure and severely affecting both aesthetics and performance.

[0003] While impregnated paper laminate wood flooring (engineered flooring) is designed to be more wear-resistant, product quality varies greatly. For example, a comparative test conducted by the Hunan Provincial Consumer Rights Protection Committee showed that some brands' products had extremely low surface abrasion resistance, only between 1000 and 1800 revolutions, far below the level of high-quality products exceeding 9000 revolutions, directly leading to a shortened lifespan. From a materials science perspective, wood itself is a naturally porous and anisotropic material, and its internal pore structure (such as tracheids) and grain direction have a decisive influence on wear behavior. Studies have shown that during grinding or scratching, the grain direction of wood significantly affects the deformation and removal methods of the material; for example, fiber breakage is more likely to occur in the cross-grain direction. This inherent structural characteristic makes untreated natural wood inherently deficient in tribological properties. In addition, many basic physical property defects of wood-based panels can indirectly exacerbate insufficient wear resistance. For example, the density and internal bond strength of the substrate are key indicators. Low-density substrates (such as below 0.82 g / cm³) have weaker impact and compressive strength. Meanwhile, an internal bond strength below 1 MPa or insufficient surface adhesive strength indicates weak bonding between the substrate and the decorative layer, making it prone to delamination or peeling under service stress, thus accelerating surface damage. Environmental factors are also a significant contributing factor. When wood is exposed to outdoor conditions, the combined effects of moisture, ultraviolet radiation, and microorganisms lead to severe surface deterioration. Studies have found that after three months of outdoor exposure, unprotected wood surfaces develop cracks, significantly increased roughness (e.g., the average roughness of beech wood can increase from 6.767 micrometers to 13.916 micrometers), and mold growth. These changes compromise surface integrity, making it more susceptible to wear. To overcome these defects, current improvement technologies primarily focus on strengthening the wood itself and applying high-performance surface protection. A representative method of strengthening modification is wood densification treatment, which uses methods such as hot pressing to cause cell walls to collapse and interweave tightly, increasing the density and surface hardness of wood to 2.3 times and 2.5 times that of natural wood, respectively, thereby reducing its wear under higher loads to approximately 50% of that of natural wood. Another cutting-edge approach is to use nanocomposite materials for impregnation treatment. For example, treating wood with polyvinyl acetate resin reinforced with nano zinc oxide can increase the hardness of its end face and side face by 42.93% and 76.88% respectively, while also giving it anti-corrosion properties, thus improving its durability from the inside out.

[0004] In conclusion, the abrasion resistance defect of wood-based panels is a systemic problem stemming from the combined effects of intrinsic material properties, process quality control, and environmental factors. In the future, combining material-level reinforcement and modification (such as densification and nanocomposite impregnation) with reliable surface coating protection is an effective way to systematically improve the abrasion life of wood-based panels and expand their application range. Summary of the Invention

[0005] The purpose of this invention is to provide a high wear-resistant composite material and its preparation method.

[0006] A high wear-resistant composite board, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers, wherein the surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition.

[0007] The cellulose paper has a thickness of 0.05-0.5 mm and 2-6 layers; the veneer has a thickness of 0.5-6 mm and the multilayer veneer has 2-30 layers.

[0008] The resin composition comprises the following components in parts by weight: 80-150 parts of thermosetting resin and 5-15 parts of curing agent.

[0009] The wear-resistant resin composition comprises the following components in parts by weight: 70-140 parts of thermosetting resin, 4-14 parts of curing agent, and 8-20 parts of wear-resistant agent.

[0010] The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2.

[0011] The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1.

[0012] The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0013] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0014] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 50-60% of the dry weight of the single-layer cellulose paper;

[0015] (2) Impregnate the veneer with the resin composition, the impregnation amount being 20-30% of the dry weight of the single-layer cellulose paper;

[0016] (3) The multi-layer cellulose paper is stacked and then stacked with multi-layer veneer. Multi-layer cellulose paper is then stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain flame-retardant and fireproof composite board.

[0017] The cellulose paper has a thickness of 0.05-0.5 mm and 2-6 layers; the veneer has a thickness of 0.5-6 mm and the multilayer veneer has 2-30 layers.

[0018] The parameters for hot-press curing are: temperature 130-210℃, pressure 5-15MPa, and time 10-60min.

[0019] The beneficial effects of this invention are as follows: The high wear-resistant composite material of this invention has good wear resistance, as well as good toughness and internal bonding strength. The combination of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin improves the toughness of the material; the combination of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride improves the internal bonding strength of the material; and the combination of boron nitride and tungsten trioxide improves the wear resistance of the material, with synergistic effects. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more comprehensive description will be given below. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the present invention.

[0021] Example 1

[0022] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0023] The resin composition comprises the following components in parts by weight: 120 parts thermosetting resin and 10 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts thermosetting resin, 9 parts curing agent, and 15 parts wear-resistant agent. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0024] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0025] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0026] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0027] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0028] Example 2

[0029] A high wear-resistant composite board is disclosed, comprising a surface layer and multiple layers of veneers hot-pressed and cured. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.1 mm and consists of 5 layers; the veneers have a thickness of 1 mm and consist of 25 layers.

[0030] The resin composition comprises the following components in parts by weight: 90 parts thermosetting resin and 6 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 80 parts thermosetting resin, 5 parts curing agent, and 10 parts wear-resistant agent. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0031] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0032] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 50% of the dry weight of the single-layer cellulose paper;

[0033] (2) Impregnate the veneer with the resin composition, the impregnation amount being 20% ​​of the dry weight of the single-layer cellulose paper;

[0034] (3) Stack 5 layers of cellulose paper and then stack them with 25 layers of veneer. Stack 5 layers of cellulose paper on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 150℃, pressure 6MPa, and time 60min.

[0035] Example 3

[0036] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.3 mm and has 2 layers. The veneers have a thickness of 3 mm and have 8 layers.

[0037] The resin composition comprises the following components in parts by weight: 150 parts thermosetting resin and 15 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 140 parts thermosetting resin, 14 parts curing agent, and 20 parts wear-resistant agent. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0038] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0039] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 60% of the dry weight of the single-layer cellulose paper;

[0040] (2) Impregnate the veneer with the resin composition, the impregnation amount being 30% of the dry weight of the single-layer cellulose paper;

[0041] (3) Stack two layers of cellulose paper and then stack them with eight layers of veneer. Stack two more layers of cellulose paper on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 190℃, pressure 12MPa, and time 20min.

[0042] Comparative Example 1

[0043] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0044] The resin composition comprises the following components in parts by weight: 120 parts of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and 10 parts of curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin, 9 parts of curing agent, and 15 parts of wear-resistant agent. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0045] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0046] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0047] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0048] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0049] Comparative Example 2

[0050] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0051] The resin composition comprises the following components in parts by weight: 120 parts bisphenol A type epoxy resin and 10 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts bisphenol A type epoxy resin, 9 parts curing agent, and 15 parts wear-resistant agent. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0052] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0053] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0054] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0055] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0056] Comparative Example 3

[0057] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0058] The resin composition comprises the following components in parts by weight: 120 parts thermosetting resin and 10 parts 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts thermosetting resin, 9 parts 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene, and 15 parts wear-resistant agent. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0059] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0060] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0061] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0062] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0063] Comparative Example 4

[0064] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0065] The resin composition comprises the following components in parts by weight: 120 parts thermosetting resin and 10 parts methylhexahydrophthalic anhydride. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts thermosetting resin, 9 parts methylhexahydrophthalic anhydride, and 15 parts wear-resistant agent. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:2.

[0066] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0067] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0068] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0069] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0070] Comparative Example 5

[0071] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0072] The resin composition comprises the following components in parts by weight: 120 parts thermosetting resin and 10 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts thermosetting resin, 9 parts curing agent, and 15 parts boron nitride. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1.

[0073] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0074] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0075] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0076] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0077] Comparative Example 6

[0078] A high wear-resistant composite board is provided, wherein the composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition. The cellulose paper has a thickness of 0.2 mm and has 3 layers. The veneers have a thickness of 2 mm and the multiple layers of veneers have 13 layers.

[0079] The resin composition comprises the following components in parts by weight: 120 parts thermosetting resin and 10 parts curing agent. The wear-resistant resin composition comprises the following components in parts by weight: 110 parts thermosetting resin, 9 parts curing agent, and 15 parts tungsten trioxide. The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:2. The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:1.

[0080] The preparation method of the high wear-resistant composite material is carried out according to the following steps:

[0081] (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 55% of the dry weight of the single-layer cellulose paper;

[0082] (2) Impregnate the veneer with the resin composition, the impregnation amount being 25% of the dry weight of the single-layer cellulose paper;

[0083] (3) Three layers of cellulose paper are stacked and then stacked with 13 layers of veneer. Three layers of cellulose paper are stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain a flame-retardant and fireproof composite board. The hot-pressing and curing parameters are: temperature 170℃, pressure 10MPa, and time 40min.

[0084] Experimental example:

[0085] The static bending strength (MPa) of the composite boards prepared in Examples 1-3 and Comparative Examples 1-2 was determined according to GB / T 17657-2022 "Test Methods for Physical and Chemical Properties of Wood-based Panels and Decorative Wood-based Panels". The experimental results were statistically analyzed using SPSS 24.0 software, and the quantitative data were analyzed using... Mean ± standard deviation is expressed as mean ± standard deviation. The Kolmogorov-Smirnov test was used to test the normality of the data. For normally distributed data, the t-test was used to compare the differences in means between two groups. A p-value < 0.05 was considered statistically significant. The results are shown in Table 1.

[0086] Table 1

[0087]

[0088] Note: * indicates that compared with Example 1 group, P<0.05.

[0089] The internal bond strength (MPa) of the composite boards prepared in Examples 1-3 and Comparative Examples 3-4 was measured, and the results are shown in Table 2.

[0090] Table 2

[0091]

[0092] Note: * indicates that compared with Example 1 group, P<0.05.

[0093] According to the national standard GB / T 15102-2006 "Impregnated Paper-faced Artificial Boards", the abrasion resistance of the composite boards prepared in Examples 1-3 and Comparative Examples 5-6 was tested, and the test results are shown in Table 3.

[0094] Table 3

[0095]

[0096] Note: * indicates that compared with Example 1 group, P<0.05.

[0097] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A high wear-resistant composite board, characterized in that, The composite board is formed by hot pressing and curing a surface layer and multiple layers of veneers. The surface layer is cellulose paper impregnated with a wear-resistant resin composition, and the veneers are impregnated with the resin composition.

2. The high wear-resistant composite material according to claim 1, characterized in that, The cellulose paper has a thickness of 0.05-0.5 mm and 2-6 layers; the veneer has a thickness of 0.5-6 mm and the multilayer veneer has 2-30 layers.

3. The high wear-resistant composite material according to claim 1, characterized in that, The resin composition comprises the following components in parts by weight: 80-150 parts of thermosetting resin and 5-15 parts of curing agent.

4. The high wear-resistant composite material according to claim 1, characterized in that, The wear-resistant resin composition comprises the following components in parts by weight: 70-140 parts of thermosetting resin, 4-14 parts of curing agent, and 8-20 parts of wear-resistant agent.

5. The high wear-resistant composite material according to claims 3-4, characterized in that, The thermosetting resin is a mixture of N,N,N',N'-tetraglycidyl-2,5-bis(2-trifluoromethyl-4-aminophenoxy)toluene epoxy resin and bisphenol A type epoxy resin in a mass ratio of 1:

2.

6. The high wear-resistant composite material according to claims 3-4, characterized in that, The curing agent is a mixture of 1,4-bis(2-trifluoromethyl-4-aminophenoxy)benzene and methylhexahydrophthalic anhydride in a mass ratio of 1:

1.

7. The high wear-resistant composite material according to claim 4, characterized in that, The wear-resistant agent is a mixture of boron nitride and tungsten trioxide in a mass ratio of 1:

2.

8. The method for preparing the high wear-resistant composite material according to claim 1, characterized in that, Follow these steps: (1) Impregnate a single-layer cellulose paper with a wear-resistant resin composition, wherein the impregnation amount is 50-60% of the dry weight of the single-layer cellulose paper; (2) Impregnate the veneer with the resin composition, the impregnation amount being 20-30% of the dry weight of the single-layer cellulose paper; (3) The multi-layer cellulose paper is stacked and then stacked with multi-layer veneer. Multi-layer cellulose paper is then stacked on the bottom of the veneer. After the blank is assembled, it is hot-pressed and cured in a hot press to obtain flame-retardant and fireproof composite board.

9. The method for preparing the high wear-resistant composite material according to claim 8, characterized in that, The cellulose paper has a thickness of 0.05-0.5 mm and 2-6 layers; the veneer has a thickness of 0.5-6 mm and the multilayer veneer has 2-30 layers.

10. The method for preparing the high wear-resistant composite material according to claim 8, characterized in that, The parameters for hot-press curing are: temperature 130-210℃, pressure 5-15MPa, and time 10-60min.

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