Jasmine artificial board and preparation method thereof

Abstract

The invention provides a jasmine artificial board and a preparation method thereof, and belongs to the technical field of artificial boards, the jasmine artificial board comprises a top layer, a middle layer and a bottom layer, and the top layer, the middle layer and the bottom layer are formed by hot pressing. The preparation method of the jasmine flower artificial board comprises the following steps: (1) wood shavings are put into a drying cylinder at the temperature of 110-130 DEG C and are dried until the water content of the wood shavings is 2-3%; (2) the dried wood shavings are put into a glue blender, a jasmine flower flavoring agent and an adhesive are sequentially and quantitatively sprayed, the rotating speed is 45-50 r / min, uniform stirring is conducted for 5-8 min, a premix is prepared, and the premix is laid into a board blank; and (3) after being compacted, the plate blank is moved into a vulcanizing machine to be subjected to three-section type hot pressing and then taken out to be cooled, and the jasmine artificial board is obtained. According to the preparation method, the jasmine flower flavoring agent and the adhesive are sprayed on the wood shavings, so that the jasmine flower flavoring agent and the adhesive can permeate into the wood shavings conveniently, the flame retardant property of the artificial board is improved, the strength of the artificial board is enhanced, and the artificial board has jasmine flower fragrance and is more stable in quality.

Description

Technical Field

[0001] The invention relates to the technical field of artificial boards, and in particular to a jasmine artificial board and a preparation method thereof. Background Art

[0002] The demand for wood has been increasing year by year. The development of the wood-based panel industry is the main way to improve the utilization rate of wood and save wood resources. Wood-based panels are made of wood or other non-wood plants. After being separated into various unit materials through certain mechanical processing, chemical adhesives are applied to glue them together under the action of temperature and pressure. According to the different plant raw materials, they can be divided into plywood, particle board, fiberboard, etc. The birth of wood-based panels marks the beginning of the modernization of wood processing, which has developed the process from simply changing the shape of wood to improving the properties of wood.

[0003] In the current artificial board processing technology, a large amount of adhesive must be used to glue and shape the wood or other non-wood plant raw material particles. Adhesives mainly include natural adhesives and synthetic adhesives including resin adhesives. Since the natural adhesive has low adhesive strength and the mechanical properties of the artificial board are poor, most artificial boards are processed using synthetic adhesives, and the most commonly used is resin adhesive. These resin adhesives have low bonding performance and poor flame retardant properties, so the artificial boards manufactured by them cannot meet the use requirements. Summary of the invention

[0004] The object of the present invention is to provide a jasmine artificial board and a preparation method thereof, so as to solve the technical problems mentioned in the background technology.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A jasmine artificial board comprises a top layer, a middle layer and a bottom layer, wherein the top layer, the middle layer and the bottom layer are formed by hot pressing.

[0007] Furthermore, the jasmine artificial board comprises the following raw materials: wood chips, jasmine fragrance and adhesive.

[0008] Furthermore, the wood shavings have a length of 15-20 mm, a width of 8-10 mm, a thickness of 0.5-0.6 mm, and a moisture content of 8% to 10%.

[0009] Furthermore, the adhesive includes the following raw materials: polyurethane, epoxy resin, polyamide, γ-aminopropyltriethoxysilane and alkali activator, and the mass ratio thereof is: 8-12:0.62-2.74:0.16-0.69:0.129-0.143:13-17.

[0010] Furthermore, the preparation method of the adhesive includes the following steps: mixing an alkali activator with kaolin for alkali activation, stirring for 80 seconds at a speed of 280 r / min, and sequentially adding epoxy resin, polyamide, and γ-aminopropyltriethoxysilane to obtain an adhesive.

[0011] Metakaolin is anhydrous aluminum silicate formed by dehydrating kaolin at high temperatures of 600 to 900°C.

[0012] Furthermore, the preparation method of the alkali activator is: mix the weighed liquid sodium silicate and sodium hydroxide solid, stir for 3 minutes in a coagulation test machine at a speed of R = 150r / min, stop stirring when it reaches a white turbid liquid state, and let it stand and cool naturally to room temperature for use.

[0013] Liquid sodium silicate is mixed with sodium hydroxide to form an alkaline activator, which provides the necessary activation conditions for the active kaolin to react at room temperature.

[0014] A method for preparing a jasmine artificial board comprises the following steps:

[0015] (1) placing the wood shavings in a drying drum at a temperature of 110-130° C. and drying the wood shavings until the moisture content of the wood shavings is 2-3%;

[0016] (2) Put the dried wood shavings into a glue mixer, spray jasmine fragrance and adhesive in a quantitative manner, rotate at 45-50 r / min, stir evenly for 5-8 min, prepare a premix, and pave it into a slab;

[0017] (3) After the slab is compacted, it is moved into a vulcanizing machine for three-stage hot pressing, and then taken out and cooled to obtain a jasmine artificial board.

[0018] Furthermore, in step (2), the slab is divided into a top layer, a middle layer and a bottom layer, and the mass ratio of wood chips in each layer is 1:1:1.

[0019] Furthermore, in step (3), the temperature of hot pressing is 160-180°C.

[0020] Furthermore, in step (3), the hot pressing pressures are 7-8, 4-5, and 1-2 MPa, respectively, and the hot pressing time is 2, 3, and 5 min, respectively.

[0021] The present invention has the following beneficial effects due to the adoption of the above technical solution:

[0022] 1. In the present invention, the metakaolin activated by an alkali activator has excellent mechanical properties and durability. When epoxy resin and polyamide are added, the slurry viscosity is low, which is conducive to uniform sizing.

[0023] 2. In the present invention, γ-aminopropyltriethoxysilane is soluble in water and is used to couple organic polymers and inorganic fillers to enhance their adhesion and improve the mechanical, water-resistant and anti-aging properties of the product; γ-aminopropyltriethoxysilane can be hydrolyzed to generate Si-OH, which reacts with the terminal hydroxyl group of alkali-activated metakaolin to form a Si-0-Si bond. The silanol group generated by the hydrolysis of γ-aminopropyltriethoxysilane successfully combines with the kaolin skeleton structure, playing a bridging role between organic and inorganic; under the action of polyamide, the epoxy ring of the epoxy resin opens, and forms a dense structure with the alkali-activated metakaolin through hydrogen bonds, thereby improving the bonding properties of the adhesive.

[0024] 3. In the present invention, an adhesive prepared from γ-aminopropyltriethoxysilane, epoxy resin and alkali-activated metakaolin is used to effectively improve the bonding performance and flame retardant properties of the adhesive. At the same time, jasmine fragrance is sprayed, and the prepared artificial board has a jasmine fragrance, so that the prepared jasmine artificial board meets the use requirements.

[0025] 4. In the present invention, jasmine fragrance and adhesive are sprayed on wood chips, which facilitates the jasmine fragrance and adhesive to penetrate into the wood chips, thereby improving the flame retardant properties of the wood-based panels, enhancing the strength of the wood-based panels, and making the wood-based panels have a jasmine fragrance and more stable quality. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, preferred embodiments are given below to further describe the present invention in detail. However, it should be noted that many details listed in the specification are only for the purpose of enabling the reader to have a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0027] Example 1

[0028] A jasmine artificial board comprises a top layer, a middle layer and a bottom layer, which are formed by hot pressing. The jasmine artificial board comprises the following raw materials: wood shavings, jasmine fragrance and adhesive. The wood shavings have a length of 15 mm, a width of 8 mm, a thickness of 0.5 mm and a moisture content of 8% to 10%.

[0029] The adhesive comprises the following raw materials: polyurethane, epoxy resin, polyamide, γ-aminopropyltriethoxysilane and alkali activator, and the mass ratio thereof is 8-12:0.62-2.74:0.16-0.69:0.129-0.143:13-17.

[0030] The preparation method of the adhesive comprises the following steps: mixing an alkali activator with kaolin for alkali activation, stirring for 80 seconds at a speed of 280 r / min, and sequentially adding epoxy resin, polyamide, and γ-aminopropyltriethoxysilane to obtain an adhesive. The adhesive prepared using γ-aminopropyltriethoxysilane, epoxy resin, and alkali-activated kaolin effectively improves the bonding performance and flame retardant performance of the adhesive; the alkali-activated kaolin has excellent mechanical properties and durability, and when epoxy resin and polyamide are added, the slurry viscosity is low, which is conducive to uniform sizing.

[0031] Metakaolin is an anhydrous aluminum silicate formed by dehydrating kaolin at high temperatures of 600 to 900°C. γ-aminopropyltriethoxysilane is soluble in water and is used to couple organic polymers and inorganic fillers to enhance their adhesion and improve the mechanical, water-resistant and anti-aging properties of the product; γ-aminopropyltriethoxysilane can be hydrolyzed to generate Si-OH, which reacts with the terminal hydroxyl group of metakaolin after alkali excitation to form Si-0-Si bonds. Under the action of polyamide, the epoxy ring of the epoxy resin opens and forms a dense structure with the metakaolin after alkali excitation through hydrogen bonds, thereby improving the bonding properties of the adhesive.

[0032] The preparation method of the alkaline activator is as follows: the weighed liquid sodium silicate and sodium hydroxide solid are mixed, and the coagulation test machine is stirred for 3 minutes at a speed of R=150r / min. When the mixture becomes a white turbid liquid, the stirring is stopped, and the mixture is allowed to stand and naturally cool to room temperature for use. The liquid sodium silicate and sodium hydroxide are mixed to form an alkaline activator, which provides the necessary activating conditions for the active metakaolin to react at room temperature.

[0033] A method for preparing a jasmine artificial board comprises the following steps:

[0034] (1) placing the wood shavings in a drying drum at a temperature of 110° C. and drying the wood shavings until the moisture content of the wood shavings is 2-3%;

[0035] (2) putting the dried wood chips into a glue mixer, spraying jasmine fragrance and adhesive in a quantitative manner, rotating at 45 r / min, stirring evenly for 5 min, preparing a premix, and paving the premix into a slab; the slab is divided into a top layer, a middle layer, and a bottom layer, and the wood chips mass ratio of each layer is 1:1:1; spraying jasmine fragrance and adhesive on the wood chips, so that the jasmine fragrance and adhesive can penetrate into the interior, thereby improving the flame retardant performance of the artificial board, enhancing the strength of the artificial board, and making the artificial board have a jasmine fragrance and more stable quality;

[0036] (3) After compacting the slab, move it into a vulcanizer for three-stage hot pressing, then take it out and cool it to obtain a jasmine artificial board; the hot pressing temperature is 160° C.; the hot pressing pressure is 7, 4, and 1 MPa, respectively, and the hot pressing time is 2, 3, and 5 min, respectively.

[0037] Example 2

[0038] A jasmine artificial board comprises a top layer, a middle layer and a bottom layer, which are formed by hot pressing. The jasmine artificial board comprises the following raw materials: wood shavings, jasmine fragrance and adhesive. The wood shavings have a length of 20 mm, a width of 10 mm, a thickness of 0.6 mm and a moisture content of 8% to 10%.

[0039] The adhesive comprises the following raw materials: polyurethane, epoxy resin, polyamide, γ-aminopropyltriethoxysilane and alkali activator, and the mass ratio thereof is 8-12:0.62-2.74:0.16-0.69:0.129-0.143:13-17.

[0040] The preparation method of the adhesive comprises the following steps: mixing an alkali activator with kaolin for alkali activation, stirring for 80 seconds at a speed of 280 r / min, and sequentially adding epoxy resin, polyamide, and γ-aminopropyltriethoxysilane to obtain an adhesive. The adhesive prepared using γ-aminopropyltriethoxysilane, epoxy resin, and alkali-activated kaolin effectively improves the bonding performance and flame retardant performance of the adhesive; the alkali-activated kaolin has excellent mechanical properties and durability, and when epoxy resin and polyamide are added, the slurry viscosity is low, which is conducive to uniform sizing.

[0041] Metakaolin is an anhydrous aluminum silicate formed by dehydrating kaolin at high temperatures of 600 to 900°C. γ-aminopropyltriethoxysilane is soluble in water and is used to couple organic polymers and inorganic fillers to enhance their adhesion and improve the mechanical, water-resistant and anti-aging properties of the product; γ-aminopropyltriethoxysilane can be hydrolyzed to generate Si-OH, which reacts with the terminal hydroxyl group of metakaolin after alkali excitation to form Si-0-Si bonds. Under the action of polyamide, the epoxy ring of the epoxy resin opens and forms a dense structure with the metakaolin after alkali excitation through hydrogen bonds, thereby improving the bonding properties of the adhesive.

[0042] The preparation method of the alkaline activator is as follows: the weighed liquid sodium silicate and sodium hydroxide solid are mixed, and the coagulation test machine is stirred for 3 minutes at a speed of R=150r / min. When the mixture becomes a white turbid liquid, the stirring is stopped, and the mixture is allowed to stand and naturally cool to room temperature for use. The liquid sodium silicate and sodium hydroxide are mixed to form an alkaline activator, which provides the necessary activating conditions for the active metakaolin to react at room temperature.

[0043] A method for preparing a jasmine artificial board comprises the following steps:

[0044] (1) placing the wood shavings in a drying drum at a temperature of 130° C. and drying the wood shavings until the moisture content of the wood shavings is 2-3%;

[0045] (2) putting the dried wood chips into a glue mixer, spraying jasmine fragrance and adhesive in a quantitative manner, rotating at a speed of 50 r / min, and stirring evenly for 8 minutes to obtain a premix, which is then laid into a slab; the slab is divided into a top layer, a middle layer, and a bottom layer, and the wood chips mass ratio of each layer is 1:1:1; spraying the jasmine fragrance and adhesive on the wood chips to facilitate the jasmine fragrance and adhesive to penetrate into the interior, thereby improving the flame retardant performance of the artificial board, enhancing the strength of the artificial board, and making the artificial board have a jasmine fragrance and more stable quality;

[0046] (3) After compacting the slab, move it into a vulcanizer for three-stage hot pressing, then take it out and cool it to obtain a jasmine artificial board; the hot pressing temperature is 180° C.; the hot pressing pressure is 8, 5, and 2 MPa, respectively, and the hot pressing time is 2, 3, and 5 min, respectively.

[0047] Example 3

[0048] A jasmine artificial board comprises a top layer, a middle layer and a bottom layer, which are formed by hot pressing. The jasmine artificial board comprises the following raw materials: wood shavings, jasmine fragrance and adhesive. The wood shavings have a length of 18 mm, a width of 9 mm, a thickness of 0.55 mm and a moisture content of 8% to 10%.

[0049] The adhesive comprises the following raw materials: polyurethane, epoxy resin, polyamide, γ-aminopropyltriethoxysilane and alkali activator, and the mass ratio thereof is 8-12:0.62-2.74:0.16-0.69:0.129-0.143:13-17.

[0050] The preparation method of the adhesive comprises the following steps: mixing an alkali activator with kaolin for alkali activation, stirring for 80 seconds at a speed of 280 r / min, and sequentially adding epoxy resin, polyamide, and γ-aminopropyltriethoxysilane to obtain an adhesive. The adhesive prepared using γ-aminopropyltriethoxysilane, epoxy resin, and alkali-activated kaolin effectively improves the bonding performance and flame retardant performance of the adhesive; the alkali-activated kaolin has excellent mechanical properties and durability, and when epoxy resin and polyamide are added, the slurry viscosity is low, which is conducive to uniform sizing.

[0051] Metakaolin is an anhydrous aluminum silicate formed by dehydrating kaolin at high temperatures of 600 to 900°C. γ-aminopropyltriethoxysilane is soluble in water and is used to couple organic polymers and inorganic fillers to enhance their adhesion and improve the mechanical, water-resistant and anti-aging properties of the product; γ-aminopropyltriethoxysilane can be hydrolyzed to generate Si-OH, which reacts with the terminal hydroxyl group of metakaolin after alkali excitation to form Si-0-Si bonds. Under the action of polyamide, the epoxy ring of the epoxy resin opens and forms a dense structure with the metakaolin after alkali excitation through hydrogen bonds, thereby improving the bonding properties of the adhesive.

[0052] The preparation method of the alkaline activator is as follows: the weighed liquid sodium silicate and sodium hydroxide solid are mixed, and the coagulation test machine is stirred for 3 minutes at a speed of R=150r / min. When the mixture becomes a white turbid liquid, the stirring is stopped, and the mixture is allowed to stand and naturally cool to room temperature for use. The liquid sodium silicate and sodium hydroxide are mixed to form an alkaline activator, which provides the necessary activating conditions for the active metakaolin to react at room temperature.

[0053] A method for preparing a jasmine artificial board comprises the following steps:

[0054] (1) placing the wood shavings in a drying drum at a temperature of 120° C. and drying the wood shavings until the moisture content of the wood shavings is 2-3%;

[0055] (2) putting the dried wood chips into a glue mixer, spraying jasmine fragrance and adhesive in a quantitative manner, rotating at 48 r / min, stirring evenly for 7 min, preparing a premix, and paving the premix into a slab; the slab is divided into a top layer, a middle layer, and a bottom layer, and the wood chips mass ratio of each layer is 1:1:1; spraying jasmine fragrance and adhesive on the wood chips, so that the jasmine fragrance and adhesive can penetrate into the interior, thereby improving the flame retardant performance of the artificial board, enhancing the strength of the artificial board, and making the artificial board have a jasmine fragrance and more stable quality;

[0056] (3) After compacting the slab, move it into a vulcanizer for three-stage hot pressing, then take it out and cool it to obtain a jasmine artificial board; the hot pressing temperature is 180° C.; the hot pressing pressure is 8, 5, and 2 MPa, respectively, and the hot pressing time is 2, 3, and 5 min, respectively.

[0057] Comparative Example 1

[0058] It is basically the same as Example 3, except that γ-aminopropyltriethoxysilane is not added to the raw materials of the adhesive.

[0059] Comparative Example 2

[0060] It is basically the same as Example 3, except that epoxy resin and polyamide are not added to the raw materials of the adhesive, and the metakaolin is not alkali-activated.

[0061] Comparative Example 3

[0062] It is basically the same as Example 3, except that epoxy resin and polyamide are not added to the raw materials of the adhesive.

[0063] Comparative Example 4

[0064] It is basically the same as Example 3, except that the kaolin in the raw material of the adhesive is not activated by alkali.

[0065] Performance test

[0066] The artificial boards obtained in Examples 1-3 and Comparative Examples 1-4 were subjected to bonding strength tests according to the standard requirements of GB / T9846-2015 for ordinary plywood, and static bending strength and elastic modulus were tested at a nominal thickness of 15 mm < t ≤ 21 mm. The results are shown in Table 1.

[0067] Results of performance measurements of wood-based panels of Examples 1-3 and Comparative Examples 1-4

[0068]

[0069]

[0070] (1) As shown in Table 1, when the adhesive prepared by the adhesive of the present invention is used for gluing, all the indicators of the plywood are far higher than the standard requirements;

[0071] (2) Compared with Example 2, in Example 3, epoxy resin and polyamide were not added to the raw materials of the adhesive prepared in Example 2, and the kaolin was not alkali-activated to prepare the adhesive. The bonding strength of Example 2 decreased by 0.98 MPa, the static bending strength along the grain decreased by 7.3 MPa, the static bending strength across the grain decreased by 8.7 MPa, the elastic modulus along the grain decreased by 400 MPa, and the elastic modulus across the grain decreased by 400 MPa.

[0072] (3) Comparing Comparative Example 3 with Comparative Example 2, epoxy resin and polyamide were not added to the raw materials for preparing the adhesive in Comparative Example 3, while epoxy resin and polyamide were not added to the raw materials for preparing the adhesive in Comparative Example 2, and the kaolin was not alkali-activated to prepare the adhesive. The bonding strength of Comparative Example 2 decreased by 0.38 MPa, the static bending strength along the grain decreased by 3.1 MPa, the static bending strength across the grain decreased by 3.7 MPa, the elastic modulus along the grain decreased by 100 MPa, and the elastic modulus across the grain decreased by 120 MPa.

[0073] (4) Comparing Comparative Example 4 with Comparative Example 2, the kaolin in the raw materials of the adhesive prepared in Comparative Example 4 was not subjected to alkali activation to prepare the adhesive, while the epoxy resin and polyamide were not added to the raw materials of the adhesive prepared in Comparative Example 2, and the kaolin was not subjected to alkali activation to prepare the adhesive. The bonding strength of Comparative Example 2 decreased by 0.48 MPa, the static bending strength along the grain decreased by 3.3 MPa, the static bending strength across the grain decreased by 4.0 MPa, the elastic modulus along the grain decreased by 250 MPa, and the elastic modulus across the grain decreased by 230 MPa.

[0074] (5) From this, it can be calculated that the effect of epoxy resin, polyamide and kaolin without alkali activation on the two together is better than that of using them separately.

[0075] Bonding strength improvement: [0.98(0.38+0.48)] / (0.38+0.48)*100%=14.0%;

[0076] Static bending strength along the grain is improved: [7.3(3.1+3.3)] / (3.1+3.3)]*100%=14.1%;

[0077] Horizontal grain improvement: [8.7(3.7+4.0)] / (3.7+4.0)*100%=13.0%;

[0078] Elastic modulus along the grain increased: [400(100+250)] / (100+250)*100%=14.3%;

[0079] Horizontal line improvement: [400(120+230)] / (120+230)*100%=14.3%.

[0080] It can be seen that the combination of epoxy resin, polyamide and kaolin after alkali activation can synergize and enhance the effect, and the prepared adhesive can effectively improve the bonding strength, static bending strength and elastic modulus of artificial boards. This is because: the kaolin activated by alkali activator has excellent mechanical properties and durability. When epoxy resin and polyamide are added, the slurry viscosity is low, which is conducive to uniform sizing; under the action of polyamide, the epoxy ring of epoxy resin opens, and forms a dense structure with the alkali-activated kaolin through hydrogen bonds, which improves the bonding performance of the adhesive.

[0081] Epoxy resin hybridized metakaolin has excellent bonding properties, flame retardant properties and environmental protection properties. The flame retardant properties have been improved to a certain extent. The formaldehyde emission of the obtained artificial board is 0.031 mg, which meets the use requirements.

[0082] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A jasmine artificial board, characterized in that: It comprises a top layer, a middle layer and a bottom layer, and the top layer, the middle layer and the bottom layer are formed by heat pressing.

2. The jasmine artificial board according to claim 1, characterized in that: Jasmine artificial board includes the following raw materials: Wood shavings, jasmine fragrance and adhesive.

3. The jasmine artificial board according to claim 1, characterized in that: The length of the shavings is 15-20 mm, the width is 8-10 mm, the thickness is 0.5-0.6 mm, and the moisture content is 8% to 10%.

4. The jasmine artificial board according to claim 1, characterized in that: The adhesive comprises the following raw materials: polyurethane, epoxy resin, polyamide, γ-aminopropyltriethoxysilane and alkali activator, and the mass ratio thereof is 8-12:0.62-2.74:0.16-0.69:0.129-0.143:13-17.

5. The jasmine artificial board according to claim 4, characterized in that: The preparation method of the adhesive comprises the following steps: mixing an alkali activator with kaolin for alkali activation, high-speed shearing for 80 seconds at a rotation speed of 280 r / min, and sequentially adding epoxy resin, polyamide, and γ-aminopropyltriethoxysilane to prepare the adhesive.

6. The jasmine artificial board according to claim 4, characterized in that: The preparation method of the alkali activator is as follows: the weighed liquid sodium silicate and sodium hydroxide solid are mixed, and the coagulation test machine is stirred for 3 minutes at a speed of R=150r / min. When the mixture becomes a white turbid liquid, the stirring is stopped, and the mixture is allowed to stand and naturally cool to room temperature for use.

7. A method for preparing a jasmine artificial board, characterized in that: The following steps are involved: (1) placing the wood shavings in a drying drum at a temperature of 110-130° C. and drying the wood shavings until the moisture content of the wood shavings is 2-3%; (2) Put the dried wood shavings into a glue mixer, spray jasmine fragrance and adhesive in a quantitative manner, rotate at 45-50 r / min, stir evenly for 5-8 min, prepare a premix, and pave it into a slab; (3) After the slab is compacted, it is moved into a vulcanizing machine for three-stage hot pressing, and then taken out and cooled to obtain a jasmine artificial board.

8. The method for preparing a jasmine artificial board according to claim 7, characterized in that: In step (2), the slab is divided into a top layer, a middle layer and a bottom layer, and the mass ratio of wood chips in each layer is 1:1:

1.

9. The method for preparing a jasmine artificial board according to claim 7, characterized in that: In step (3), the temperature of hot pressing is 160-180°C.

10. The method for preparing a jasmine artificial board according to claim 7, characterized in that: In step (3), the hot pressing pressures are 7-8, 4-5, and 1-2 MPa, respectively, and the hot pressing time is 2, 3, and 5 min, respectively.

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