Continuous hot press molding process for insulating laminated wood

Abstract

The invention relates to the technical field of wood, in particular to an insulating laminated wood continuous hot press molding process which comprises the following steps: pretreatment: peeling and cutting a wood raw material; according to the method, in the preparation process of the soaking solution, treated modified glass wool and fluorine-containing groups with low surface energy on the surface can be filled in pores of wood after being soaked, moisture invasion is prevented, the influence of moisture on the electrical insulation performance is reduced, meanwhile, the glass wool has certain insulativity, and the electrical insulation performance of the wood is improved. After the aluminum hydroxide and the epoxy resin are mixed and subjected to crosslinking reaction treatment, chemical bond connection is formed between molecular chains of the epoxy resin, a three-dimensional network structure is constructed, movement of electrons can be effectively limited, migration paths of the electrons in the material are reduced, and therefore the electrical insulation performance of the composite insulation additive is improved; and in the subsequent steps, the materials can be uniformly distributed in the wood, so that the insulating capacity of the wood is enhanced.

Description

Technical Field

[0001] This invention relates to the field of wood technology, specifically to a continuous hot-pressing molding process for insulating laminated wood. Background Technology

[0002] Currently, with the rapid development of the electronics and power industries, the demand for wood materials with good electrical insulation is increasing. The market has a continuously growing demand for high-performance, low-cost electrically insulating wood materials. National policies encourage the development of environmentally friendly and low-carbon technologies and new energy industries, which also provides a broad space for the research and development of more efficient and economical electrically insulating wood processing technologies.

[0003] Currently, due to its structural characteristics, natural wood lacks electrical insulation properties, limiting its widespread application in specific fields and failing to adequately meet the demands of industrial production and high performance. Therefore, this invention provides a continuous hot-pressing process for insulating laminated wood. Summary of the Invention

[0004] The purpose of this invention is to provide a continuous hot-pressing molding process for insulating laminated wood, which improves the electrical insulation and water resistance of wood.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a continuous hot-pressing molding process for insulating laminated wood, comprising the following steps: Step 1: Pre-treatment, the wood raw materials are peeled and cut, and then dried; Step 2: Solution preparation, preparing the soaking solution; Step 3: Impregnation treatment. The pre-treated wood is immersed in a container containing an impregnation solution for impregnation treatment. Step 4: Hot pressing and curing. The impregnated wood is fed into a continuous hot press for continuous hot pressing and curing. Step 5: Cooling and stabilizing. Allow the heat-pressed and cured wood to cool naturally to room temperature.

[0006] Furthermore, the soaking solution is made from the following raw materials in parts by weight: 40-60 parts of composite insulating additive, 20-40 parts of modified glass wool, 5-15 parts of graphene, and 5-15 parts of rubber powder.

[0007] Furthermore, the preparation method of the composite insulating additive includes the following steps: adding aluminum hydroxide and epoxy resin to a stirring container, wherein the mass ratio of aluminum hydroxide to epoxy resin is 1:1, and stirring continuously at 200-400 r / min for 40-50 minutes; then adding an organic peroxide crosslinking agent to the stirring container and stirring for another 15-30 minutes to obtain a mixture; adding the mixture to a reaction vessel and crosslinking reaction at 100-150℃ for 1-3 hours; and finally removing the mixture to complete the preparation of the composite insulating additive.

[0008] Furthermore, the preparation method of the modified glass wool includes the following steps: selecting waste and recycled glass wool, cleaning and crushing it, immersing the crushed glass wool in a stirring container containing a perfluorooctanoic acid (PFOA) solution with a concentration of 0.1% to 0.3%, placing the stirring container in a water bath, setting the temperature to 50 to 80°C, and continuously stirring the reaction at 200 to 400 r / min for 30 to 60 minutes. After the reaction is completed, the glass wool is removed and washed with deionized water until the glass wool is neutral. The washed glass wool is then placed in a drying oven and dried at 60 to 80°C for 10 to 15 minutes to complete the preparation of the modified glass wool.

[0009] Furthermore, the method for preparing the rubber powder includes the following steps: selecting waste tires, cleaning, crushing and grinding them to obtain rubber powder, and then sieving the rubber powder through a filter screen to complete the preparation of the rubber powder.

[0010] Furthermore, the filter screen for sieving the rubber powder is 80-120 mesh, and the particle size of the sieved rubber powder is 0.12-0.18 mm.

[0011] Furthermore, the preparation method of the soaking solution includes the following steps: adding composite insulating additives, modified glass wool, graphene and rubber powder into a stainless steel container, and continuously stirring with a stirrer at 200-400 r / min for 15-30 minutes to complete the preparation of the soaking solution.

[0012] Furthermore, the impregnation treatment includes the following steps: immersing the pretreated wood in a ceramic container containing an impregnation solution, placing the ceramic container in a microwave reaction chamber, setting the frequency to 2450MHz, adjusting the microwave power to 400W, and treating for 1-2 hours to complete the wood impregnation treatment.

[0013] Furthermore, the hot-press curing includes the following steps: taking out the impregnated wood and immediately sending it into a continuous hot press, setting the pressure to 8 MPa and the temperature to 160°C, and continuously hot-pressing for 30 minutes to complete the hot-press curing treatment of the wood.

[0014] Furthermore, in step one, the moisture content of the dried wood is less than 10%, and in step two, the organic peroxide crosslinking agent is dicumyl peroxide, and the mass ratio of the organic peroxide crosslinking agent to the mixture is 0.02:1.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, the modified glass wool, after being treated in the soaking solution, has low surface energy fluorine-containing groups on its surface. After immersion, it fills the pores of the wood, not only preventing water intrusion and reducing the impact of water on electrical insulation performance, but also the glass wool itself has a certain degree of insulation and can participate in the formation of the electrical insulation film layer. After aluminum hydroxide and epoxy resin are mixed and treated by cross-linking reaction, the epoxy resin molecular chains form chemical bonds to build a three-dimensional network structure, which can effectively restrict the movement of electrons and reduce the migration path of electrons in the material, thereby improving the electrical insulation performance of the composite insulating additive. In subsequent steps, it will be evenly distributed in the wood, enhancing the wood's insulation ability.

[0016] 2. In this invention, graphene and rubber powder are added during the preparation process of the soaking solution. Graphene forms a special conductive network structure inside the wood, which can uniformly disperse the electric field, avoid local electric field concentration, reduce the disordered migration of electrons, and thus improve the overall electrical insulation performance of the wood. Rubber powder can not only fill the pores of the wood together with modified glass wool to enhance the overall insulation performance of the wood, but also cooperate with the conductive network of graphene to further optimize the electric field distribution inside the wood and improve the insulation effect.

[0017] 3. In this invention, during the impregnation process, the wood is soaked in the impregnation solution and treated with microwave radiation. The microwave action promotes the rapid reaction and diffusion between the molecules of each component in the impregnation solution, allowing these insulating components to fully penetrate into the pores and fiber structure of the wood, forming a strong physicochemical bond with the wood fibers. This results in a denser and more uniform electrically insulating film layer inside and on the surface of the wood, significantly improving the insulation performance of the wood. Furthermore, the rapid heating and molecular activation significantly shorten the impregnation time. During the hot-press curing process, under high temperature and high pressure, the components of the impregnation solution inside the wood undergo further physicochemical reactions, forming a tighter and stronger structure, making the insulating laminated wood a material with excellent overall performance.

[0018] 4. In this invention, waste recycled glass wool is selected to prepare modified glass wool, and waste tires are used to prepare rubber powder. This not only reduces the pressure of waste on the environment and reduces the environmental burden caused by landfill and incineration, but also realizes the reuse of resources. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] Example 1: A continuous hot-pressing process for insulating laminated wood includes the following steps: Step 1: Pre-treatment, the wood raw materials are peeled and cut, and then dried; Step 2: Solution preparation, preparing the soaking solution; Step 3: Impregnation treatment. The pre-treated wood is immersed in a container containing an impregnation solution for impregnation treatment. Step 4: Hot pressing and curing. The impregnated wood is fed into a continuous hot press for continuous hot pressing and curing. Step 5: Cooling and stabilizing. Allow the heat-pressed and cured wood to cool naturally to room temperature.

[0021] The soaking solution is made from the following raw materials in parts by weight: 40 parts composite insulating additive, 20 parts modified glass wool, 5 parts graphene, and 5 parts rubber powder.

[0022] The preparation method of the composite insulating additive includes the following steps: aluminum hydroxide and epoxy resin are added to a stirring container at a mass ratio of 1:1, and stirred continuously at 200 r / min for 40 minutes. Then, an organic peroxide crosslinking agent is added to the stirring container, and stirring is continued for 15 minutes to obtain a mixture. The mixture is then added to a reaction vessel and crosslinked at 100℃ for 1 hour. The mixture is then removed to complete the preparation of the composite insulating additive.

[0023] The preparation method of modified glass wool includes the following steps: selecting waste recycled glass wool, cleaning and crushing it, immersing the crushed glass wool in a stirring container containing a perfluorooctanoic acid (PFOA) solution with a concentration of 0.1%, placing the stirring container in a water bath, setting the temperature to 50℃, and continuously stirring the reaction at 200 r / min for 30 minutes. After the reaction is completed, the glass wool is removed and washed with deionized water until the glass wool is neutral. The washed glass wool is then placed in a drying oven and dried at 60℃ for 10 minutes to complete the preparation of modified glass wool.

[0024] The preparation method of rubber powder includes the following steps: selecting waste tires, cleaning, crushing and grinding them to obtain rubber powder, and then sieving the rubber powder through a filter screen to complete the preparation of rubber powder.

[0025] The filter screen used for sieving the rubber powder is 80 mesh, and the particle size of the rubber powder after sieving is 0.12 mm.

[0026] The preparation method of the soaking solution includes the following steps: adding composite insulating additives, modified glass wool, graphene and rubber powder into a stainless steel container, and stirring continuously for 15 minutes at 200 r / min to complete the preparation of the soaking solution.

[0027] The impregnation treatment includes the following steps: immersing the pretreated wood in a ceramic container containing an impregnation solution, placing the ceramic container in a microwave reaction chamber, setting the frequency to 2450MHz, adjusting the microwave power to 400W, and treating for 1 hour to complete the wood impregnation treatment.

[0028] Hot-press curing includes the following steps: take out the impregnated wood, immediately put it into a continuous hot press, set the pressure to 8 MPa, the temperature to 160°C, and continue hot-pressing for 30 minutes to complete the hot-press curing treatment of the wood.

[0029] In step one, the moisture content of the dried wood is less than 10%. In step two, the organic peroxide crosslinking agent is dicumyl peroxide, and the mass ratio of the organic peroxide crosslinking agent to the mixture is 0.02:1.

[0030] Example 2: A continuous hot-pressing molding process for insulating laminated wood includes the following steps: Step 1: Pre-treatment, the wood raw materials are peeled and cut, and then dried; Step 2: Solution preparation, preparing the soaking solution; Step 3: Impregnation treatment. The pre-treated wood is immersed in a container containing an impregnation solution for impregnation treatment. Step 4: Hot pressing and curing. The impregnated wood is fed into a continuous hot press for continuous hot pressing and curing. Step 5: Cooling and stabilizing. Allow the heat-pressed and cured wood to cool naturally to room temperature.

[0031] The soaking solution is made from the following raw materials in parts by weight: 50 parts composite insulating additive, 30 parts modified glass wool, 10 parts graphene and 10 parts rubber powder.

[0032] The preparation method of the composite insulating additive includes the following steps: aluminum hydroxide and epoxy resin are added to a stirring container at a mass ratio of 1:1, and stirred continuously at 300 r / min for 45 minutes. Then, an organic peroxide crosslinking agent is added to the stirring container, and stirring is continued for 22 minutes to obtain a mixture. The mixture is added to a reaction vessel and crosslinked at 125℃ for 2 hours. The mixture is then removed to complete the preparation of the composite insulating additive.

[0033] The preparation method of modified glass wool includes the following steps: Select waste recycled glass wool, clean and crush it, immerse the crushed glass wool in a stirring container containing a perfluorooctanoic acid (PFOA) solution with a concentration of 0.2%, place the stirring container in a water bath, set the temperature to 65℃, and continuously stir the reaction at 300 r / min for 45 minutes. After the reaction is completed, remove the glass wool, wash it with deionized water until the glass wool is neutral, place the washed glass wool in a drying oven, and dry it at 70℃ for 12 minutes to complete the preparation of modified glass wool.

[0034] The preparation method of rubber powder includes the following steps: selecting waste tires, cleaning, crushing and grinding them to obtain rubber powder, and then sieving the rubber powder through a filter screen to complete the preparation of rubber powder.

[0035] The filter screen used for sieving the rubber powder is 100 mesh, and the particle size of the rubber powder after sieving is 0.15 mm.

[0036] The preparation method of the soaking solution includes the following steps: adding composite insulating additives, modified glass wool, graphene and rubber powder into a stainless steel container, and stirring continuously for 22 minutes at 300 r / min to complete the preparation of the soaking solution.

[0037] The impregnation treatment includes the following steps: immersing the pretreated wood in a ceramic container containing an impregnation solution, placing the ceramic container in a microwave reaction chamber, setting the frequency to 2450MHz, adjusting the microwave power to 400W, and treating for 1.5 hours to complete the wood impregnation treatment.

[0038] Hot-press curing includes the following steps: take out the impregnated wood, immediately put it into a continuous hot press, set the pressure to 8 MPa, the temperature to 160°C, and continue hot-pressing for 30 minutes to complete the hot-press curing treatment of the wood.

[0039] In step one, the moisture content of the dried wood is less than 10%. In step two, the organic peroxide crosslinking agent is dicumyl peroxide, and the mass ratio of the organic peroxide crosslinking agent to the mixture is 0.02:1.

[0040] Example 3: A continuous hot-pressing process for insulating laminated wood includes the following steps: Step 1: Pre-treatment, the wood raw materials are peeled and cut, and then dried; Step 2: Solution preparation, preparing the soaking solution; Step 3: Impregnation treatment. The pre-treated wood is immersed in a container containing an impregnation solution for impregnation treatment. Step 4: Hot pressing and curing. The impregnated wood is fed into a continuous hot press for continuous hot pressing and curing. Step 5: Cooling and stabilizing. Allow the heat-pressed and cured wood to cool naturally to room temperature.

[0041] The soaking solution is made from the following raw materials in parts by weight: 60 parts composite insulating additive, 40 parts modified glass wool, 15 parts graphene and 15 parts rubber powder.

[0042] The preparation method of the composite insulating additive includes the following steps: aluminum hydroxide and epoxy resin are added to a stirring container at a mass ratio of 1:1, and stirred continuously at 400 r / min for 50 minutes. Then, an organic peroxide crosslinking agent is added to the stirring container, and stirring is continued for 30 minutes to obtain a mixture. The mixture is then added to a reaction vessel and crosslinked at 150°C for 3 hours. The mixture is then removed to complete the preparation of the composite insulating additive.

[0043] The preparation method of modified glass wool includes the following steps: Select waste recycled glass wool, clean and crush it, immerse the crushed glass wool in a stirring container containing a perfluorooctanoic acid (PFOA) solution with a concentration of 0.3%, place the stirring container in a water bath, set the temperature to 80℃, and continuously stir the reaction at 400 r / min for 60 minutes. After the reaction is completed, remove the glass wool, wash it with deionized water until the glass wool is neutral, place the washed glass wool in a drying oven, and dry it at 80℃ for 15 minutes to complete the preparation of modified glass wool.

[0044] The preparation method of rubber powder includes the following steps: selecting waste tires, cleaning, crushing and grinding them to obtain rubber powder, and then sieving the rubber powder through a filter screen to complete the preparation of rubber powder.

[0045] The filter screen for sieving rubber powder is 120 mesh, and the particle size of the rubber powder after sieving is 0.18 mm.

[0046] The preparation method of the soaking solution includes the following steps: adding composite insulating additives, modified glass wool, graphene and rubber powder into a stainless steel container, and stirring continuously for 30 minutes at 400 r / min to complete the preparation of the soaking solution.

[0047] The impregnation treatment includes the following steps: immersing the pretreated wood in a ceramic container containing an impregnation solution, placing the ceramic container in a microwave reaction chamber, setting the frequency to 2450MHz, adjusting the microwave power to 400W, and treating for 2 hours to complete the wood impregnation treatment.

[0048] Hot-press curing includes the following steps: take out the impregnated wood, immediately put it into a continuous hot press, set the pressure to 8 MPa, the temperature to 160°C, and continue hot-pressing for 30 minutes to complete the hot-press curing treatment of the wood.

[0049] In step one, the moisture content of the dried wood is less than 10%. In step two, the organic peroxide crosslinking agent is dicumyl peroxide, and the mass ratio of the organic peroxide crosslinking agent to the mixture is 0.02:1.

[0050] Comparative Example 1: The difference between this comparative example and Examples 1-3 is that no composite insulating additive was used in the preparation of the mixture in this comparative example.

[0051] Comparative Example 2 differs from Examples 1-3 in that the glass wool was not modified in the preparation of the mixture in this comparative example.

[0052] Comparative Example 3 differs from Examples 1-3 in that no rubber powder was added to the mixture prepared in this comparative example.

[0053] Comparative Example 4 differs from Examples 1-3 in that no modified glass wool was added to the mixture prepared in this comparative example.

[0054] The performance of the continuous hot-pressing molding process for insulating laminated wood prepared in Examples 1-3 and Comparative Examples 1-4 was tested. The test items and test methods are as follows: Insulation testing was conducted using an insulation resistance tester, in accordance with GB / T 1410-2006 "Test Methods for Volume Resistivity and Surface Resistivity of Solid Insulating Materials". Performance testing was conducted using a universal testing machine, in accordance with GB / T 1936.1-2009 "Test Method for Bending Strength of Wood"; The water absorption rate test was conducted using the water absorption rate test method. The test data of the insulating laminated wood prepared in Examples 1-3 and Comparative Examples 1-4 are recorded in the table below: Testing items Insulation resistance (Ω) Flexural strength (MPa) Water absorption rate (%) Example 1 <![CDATA[8.5×10 12 ]]> 135 2.8 Example 2 <![CDATA[8.3×10 12 ]]> 132 2.9 Example 3 <![CDATA[8.6×10 12 ]]> 138 2.7 Comparative Example 1 <![CDATA[3.2×10 12 ]]> 100 5.5 Comparative Example 2 <![CDATA[4.5×10 12 ]]> 110 4.8 Comparative Example 3 <![CDATA[5.0×10 12 ]]> 120 4.0 Comparative Example 4 <![CDATA[3.0×10 12 ]]> 90 6.0 By comparing and analyzing the data in the table, it can be seen that the insulating laminated wood prepared by the process in Examples 1-3 has significantly better performance than the insulating laminated wood prepared by the process in Comparative Examples 1-4. This indicates that during the preparation process in the soaking solution, the modified glass wool, after treatment, has low surface energy fluorine-containing groups on its surface. After immersion, these groups fill the pores of the wood, not only preventing water intrusion and reducing the impact of water on electrical insulation performance, but also the glass wool itself has a certain degree of insulation and can participate in the formation of the electrical insulation film layer. Furthermore, after aluminum hydroxide and epoxy resin are mixed and treated by cross-linking reaction, the epoxy resin molecular chains form chemical bonds and construct a three-dimensional network structure, which can effectively restrict the movement of electrons and reduce the migration path of electrons in the material, thereby improving the electrical insulation performance of the composite insulating additive. In subsequent steps, it will be evenly distributed in the wood, enhancing the wood's insulation ability. During the preparation process in the soaking solution, graphene and rubber powder are added. Graphene forms a special conductive network structure inside the wood, which can evenly disperse the electric field, avoid local electric field concentration, and reduce the disordered migration of electrons, thereby improving the overall electrical insulation performance of the wood. Rubber powder can not only fill the pores of the wood together with modified glass wool to enhance the overall insulation performance of the wood, but also cooperate with the conductive network of graphene to further optimize the electric field distribution inside the wood and improve the insulation effect. In the impregnation process, the wood is soaked in the impregnation solution and treated with microwave radiation. The microwave action promotes the rapid reaction and diffusion between the molecules of the components in the impregnation solution, allowing these insulating components to fully penetrate into the pores and fiber structure of the wood and form a strong physicochemical bond with the wood fibers. This results in a denser and more uniform electrically insulating film layer inside and on the surface of the wood, significantly improving the insulation performance of the wood. Furthermore, the rapid heating and molecular activation process greatly shortens the impregnation time. During the hot-press curing process, under high temperature and high pressure, the components of the impregnation solution inside the wood undergo further physicochemical reactions, forming a tighter and stronger structure, making the insulating laminated wood a material with excellent overall performance.

[0055] By comparing and analyzing the relevant data in the table, it can be seen that the insulating laminated wood prepared by the molding process of this invention not only has good electrical insulation and water resistance, but also demonstrates that the continuous hot-pressing molding process for insulating laminated wood provided by this invention has a broader market prospect and is more suitable for promotion.

[0056] In the description of this specification, references to terms such as "an embodiment," "example," and "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0057] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A continuous hot-pressing molding process for insulating laminated wood, characterized in that, Includes the following steps: Step 1: Pre-treatment, the wood raw materials are peeled and cut, and then dried; Step 2: Solution preparation, preparing the soaking solution; Step 3: Impregnation treatment. The pre-treated wood is immersed in a container containing an impregnation solution for impregnation treatment. Step 4: Hot pressing and curing. The impregnated wood is fed into a continuous hot press for continuous hot pressing and curing. Step 5: Cooling and stabilizing. Allow the heat-pressed and cured wood to cool naturally to room temperature.

2. The continuous hot-pressing molding process for insulating laminated wood according to claim 1, characterized in that, The soaking solution is made from the following raw materials in parts by weight: 40-60 parts of composite insulating additive, 20-40 parts of modified glass wool, 5-15 parts of graphene, and 5-15 parts of rubber powder.

3. The continuous hot-pressing molding process for insulating laminated wood according to claim 2, characterized in that, The preparation method of the composite insulating additive includes the following steps: aluminum hydroxide and epoxy resin are added to a stirring container, wherein the mass ratio of aluminum hydroxide to epoxy resin is 1:1, and the mixture is stirred continuously at 200-400 r / min for 40-50 minutes; then an organic peroxide crosslinking agent is added to the stirring container, and the mixture is stirred for another 15-30 minutes to obtain a mixture; the mixture is added to a reaction vessel, and the crosslinking reaction is carried out at 100-150℃ for 1-3 hours; the mixture is then removed to complete the preparation of the composite insulating additive.

4. The continuous hot-pressing molding process for insulating laminated wood according to claim 2, characterized in that, The method for preparing the modified glass wool includes the following steps: selecting waste and recycled glass wool, cleaning and crushing it, immersing the crushed glass wool in a stirring container containing a perfluorooctanoic acid (PFOA) solution with a concentration of 0.1% to 0.3%, placing the stirring container in a water bath, setting the temperature to 50 to 80°C, and continuously stirring the reaction at 200 to 400 r / min for 30 to 60 minutes. After the reaction is completed, removing the glass wool and washing it with deionized water until the glass wool is neutral, placing the washed glass wool in a drying oven, and drying it at 60 to 80°C for 10 to 15 minutes to complete the preparation of the modified glass wool.

5. The continuous hot-pressing molding process for insulating laminated wood according to claim 2, characterized in that, The method for preparing the rubber powder includes the following steps: selecting waste tires, cleaning, crushing and grinding them to obtain rubber powder, and then sieving the rubber powder through a filter screen to complete the preparation of the rubber powder.

6. The continuous hot-pressing molding process for insulating laminated wood according to claim 5, characterized in that, The filter screen used for sieving the rubber powder is 80-120 mesh, and the particle size of the sieved rubber powder is 0.12-0.18 mm.

7. The continuous hot-pressing molding process for insulating laminated wood according to claim 2, characterized in that, The preparation method of the soaking solution includes the following steps: adding composite insulating additives, modified glass wool, graphene and rubber powder into a stainless steel container, and stirring continuously for 15 to 30 minutes at 200 to 400 r / min to complete the preparation of the soaking solution.

8. The continuous hot-pressing molding process for insulating laminated wood according to claim 1, characterized in that, The impregnation treatment includes the following steps: immersing the pretreated wood in a ceramic container containing an impregnation solution, placing the ceramic container in a microwave reaction chamber, setting the frequency to 2450MHz, adjusting the microwave power to 400W, and treating for 1-2 hours to complete the wood impregnation treatment.

9. The continuous hot-pressing molding process for insulating laminated wood according to claim 1, characterized in that, The hot-press curing process includes the following steps: the impregnated wood is taken out and immediately sent into a continuous hot press, the pressure is set to 8 MPa, the temperature is 160°C, and the hot pressing is continued for 30 minutes to complete the hot-press curing process of the wood.

10. The continuous hot-pressing molding process for insulating laminated wood according to claim 3, characterized in that, In step one, the moisture content of the dried wood is less than 10%. In step two, the organic peroxide crosslinking agent is dicumyl peroxide, and the mass ratio of the organic peroxide crosslinking agent to the mixture is 0.02:1.