Fiber-reinforced coated composite board and preparation method thereof

Abstract

The invention discloses a fiber-reinforced cladding composite board and a preparation method thereof, and relates to the technical field of composite boards, the fiber-reinforced cladding composite board comprises two layers of substrates and a fiber composite layer, the fiber composite layer is located between the two layers of substrates, the fiber composite layer comprises 30-50% by weight of glass fibers and 50-70% by weight of an adhesive, and the fiber-reinforced cladding composite board is prepared from the following components in percentage by weight: 30-50% of glass fibers and 50-70% of the adhesive. The fiber composite layer further comprises a solid air insect repellant, the solid air insect repellant comprises, by weight, 20%-30% of an adsorption material, 20%-30% of a filling agent, 20%-30% of a plasticizer, 3%-5% of a plant extract and the balance essential oil, and the adsorption material accounts for 20%-30%, the filling agent accounts for 20%-30%, the plasticizer accounts for 20%-30% and the plant extract accounts for 3%-5%. The weight ratio of the essential oil is 30%-35%. The light weight of the composite board can be greatly improved through the fiber composite layer, and the solid air insect repellant can effectively help the composite board to repel mosquitoes, so that when the composite board is used as a building board, indoor mosquitoes can be reduced, and the indoor environment can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of composite panels, and in particular to a fiber-reinforced clad composite panel and a preparation method thereof. Background Art

[0002] Building composite panels are a commonly used material in the construction industry. They have many excellent properties and are widely used in various types of buildings. There are many types of building composite panels, including metal insulation composite panels, double-sided stainless steel composite panels, fireproof aluminum composite panels, etc. Ordinary panels have average strength. In order to improve the strength of the panels, fiber materials can be added to the panels.

[0003] Publication number CN106287194A discloses a glass fiber partition, including an upper partition and a lower partition, the upper partition is made of glass fiber flame wool, centrifugal glass wool, polyester fiber, polypropylene fiber and graphene fiber, and the lower partition is made of glass fiber flame wool, centrifugal glass wool, polyester fiber, polyethylene fiber and graphene fiber.

[0004] The strength of the board in the above technical solution can be improved by adding glass fiber materials, but the function is single. There are many mosquitoes indoors in summer, so it will greatly affect the indoor environment. As an important building material, the board can help repel mosquitoes and greatly improve comfort. Ordinary boards cannot help remove mosquitoes. Summary of the invention

[0005] The object of the present invention is to provide a fiber-reinforced cladding composite board and a preparation method thereof, which solves the problem that ordinary boards have a single function and cannot help remove mosquitoes.

[0006] The present invention solves the above technical problems through the following technical solutions. The present invention includes two layers of substrates and a fiber composite layer. The fiber composite layer is located between the two layers of substrates. The fiber composite layer includes glass fiber and adhesive. The weight of the glass fiber accounts for 30%-50%, and the weight of the adhesive accounts for 50%-70%. The fiber composite layer also includes a solid air repellent. The solid air repellent includes an adsorbent material, a filler, a plasticizer, a plant extract and an essential oil. The weight of the adsorbent material accounts for 20%-30%, the weight of the filler accounts for 20%-30%, the weight of the plasticizer accounts for 20%-30%, the weight of the plant extract accounts for 3%-5%, and the weight of the essential oil accounts for 30%-35%.

[0007] Preferably, the adhesive is epoxy resin, the adsorbent material is powdered polyvinyl chloride, the filler is calcium carbonate, the plasticizer is diisononyl phthalate, and the plant extract is eucalyptus citriodora plant oil.

[0008] Preferably, the solid air insect repellent further comprises stearic acid, and the weight proportion of the stearic acid is 0.2%-0.5%.

[0009] Preferably, the solid air insect repellent is placed in a layer between the front substrate and the fiber composite layer, and a plurality of air holes are provided on the front substrate.

[0010] Preferably, a plurality of grooves are provided in the fiber composite layer, the solid air insect repellent is in a cylindrical shape and filled in the grooves, and a plurality of air holes connected to the grooves are provided on the front substrate.

[0011] A method for preparing a fiber-reinforced cladding composite plate comprises the following steps:

[0012] S1. Preparation of raw materials for the fiber composite layer: prepare glass powder, melt the glass powder in a high-temperature resistance furnace, maintain the temperature at 1400°C, draw the molten glass liquid into fibers through a metal mold, and then cool, coat, dry and cut the drawn glass fibers to obtain glass fibers. Take a certain amount of glass fibers and prepare epoxy resin according to the proportion;

[0013] S2. Preparation of fiber composite layer: Use laying equipment to lay multiple layers of glass fiber, place the laid glass fiber in epoxy resin and completely immerse it in it and cure it. During the curing process, cure it at room temperature for 7 days, and then cure it at 80-120°C for 1-2 hours. Then, use a hot press to extrude the obtained material to obtain a fiber composite layer;

[0014] S3. Preparation of raw materials for solid air insect repellent: When preparing lemon eucalyptus plant oil, prepare fresh or dried lemon eucalyptus leaves and twigs and distillation equipment, extract lemon eucalyptus plant oil by steam distillation, and prepare powdered polyvinyl chloride, calcium carbonate, diisononyl phthalate, lemon eucalyptus plant oil and essential oil in proportion;

[0015] S4. Preparation of solid air insect repellent: all materials are stirred and mixed in a mixing container using a stirrer, and the materials are heated using a heating device and the temperature is gradually increased to heat all the materials to a fluid state, and then the stirring is continued for 10-20 minutes, and then the materials are poured into a mold or molded using an injection molding device, and the solid air insect repellent is obtained after cooling;

[0016] S5. Preparation of composite board: the fiber composite layer and the solid air insect repellent are cut into set shapes according to the set structure and specifications, and then the solid air insect repellent is filled into the fiber composite layer. The substrate is cut according to the same upper surface area as the fiber composite layer, and the surface in contact with the fiber composite layer is processed into a uniform uneven state. A plurality of air holes are drilled on the front substrate by a drilling device, and the substrate is bonded to the front and rear sides of the fiber composite layer respectively using a hot press with an adhesive layer to obtain a composite board.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The present invention can greatly improve the lightness of the composite board through the fiber composite layer, and improve the solid air insect repellent to effectively help the composite board repel mosquitoes. Therefore, when used as a building board, it can reduce indoor mosquitoes and thus improve the indoor environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional structural view of a composite plate in Embodiment 1 of the present invention;

[0020] Figure 2 This is a cross-sectional structural view of the composite plate in the second embodiment of the present invention.

[0021] The numbers in the figure represent:

[0022] 1. Base plate; 2. Fiber composite layer; 3. Solid air insect repellent; 4. Air vents. DETAILED DESCRIPTION

[0023] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0024] Embodiment 1

[0025] The present embodiment provides a technical solution: a fiber-reinforced clad composite panel, comprising two layers of substrate 1 and a fiber composite layer 2, the fiber composite layer 2 being located between the two layers of substrate 1, the fiber composite layer 2 comprising glass fiber and adhesive, the weight proportion of the glass fiber being 40%, the weight proportion of the adhesive being 60%, the fiber composite layer 2 also comprising a solid air repellent 3, the solid air repellent 3 comprising an adsorbent material, a filler, a plasticizer, a plant extract, essential oil and stearic acid, the weight proportion of the adsorbent material being 20%, the weight proportion of the filler being 20%, the weight proportion of the plasticizer being 25%, the weight proportion of the plant extract being 4.8%, the weight proportion of the essential oil being 30%, and the weight proportion of the stearic acid being 0.2%.

[0026] The adhesive is epoxy resin, the adsorbent material is powdered polyvinyl chloride, the polyvinyl chloride material is less affected by temperature and can prevent the essential oil and plant extract from volatilizing quickly, the filler is calcium carbonate, the plasticizer is diisononyl phthalate, and the plant extract is lemon eucalyptus plant oil, which has an outstanding mosquito repellent effect.

[0027] The solid air insect repellent 3 is placed in a layer between the front substrate 1 and the fiber composite layer 2, and a plurality of air holes 4 are provided on the front substrate 1.

[0028] The preparation method of the fiber reinforced cladding composite plate comprises the following steps:

[0029] S1. Preparation of raw materials for fiber composite layer 2: preparing glass powder, melting the glass powder in a high-temperature resistance furnace, maintaining the temperature at 1400°C, drawing the molten glass liquid into fibers through a metal mold, and then cooling, coating, drying and cutting the drawn glass fibers to obtain glass fibers, taking a certain amount of glass fibers, and preparing epoxy resin according to the proportion;

[0030] S2, preparation of fiber composite layer 2: using a laying device to lay multiple layers of glass fibers, placing the laid glass fibers in epoxy resin and completely immersing them therein and curing them, curing them at room temperature for 7 days, then curing them at 80°C for 2 hours, and then extruding the obtained material using a hot press to obtain fiber composite layer 2;

[0031] S3, solid air insect repellent 3 raw material preparation: when preparing lemon eucalyptus plant oil, prepare fresh or dried lemon eucalyptus leaves and twigs and distillation equipment, extract lemon eucalyptus plant oil by steam distillation, and prepare powdered polyvinyl chloride, calcium carbonate, diisononyl phthalate, lemon eucalyptus plant oil and essential oil in proportion;

[0032] S4, preparation of solid air insect repellent 3: all materials are stirred and mixed in a mixing container using a stirrer, the materials are heated using a heating device and the temperature is gradually increased to heat all the materials to a fluid state, and then the stirring is continued for 10 minutes, and then the materials are poured into a mold or molded using an injection molding device, and the solid air insect repellent 3 is obtained after cooling;

[0033] S5, composite board preparation: the fiber composite layer 2 and the solid air insect repellent 3 are cut into the set structure and specifications according to the set structure and specifications. Figure 1 In the structure shown, a receiving groove that can just accommodate the solid air insect repellent 3 is cut on the front side of the fiber composite layer 2, and then the solid air insect repellent 3 is filled into the receiving groove in the fiber composite layer 2. The substrate 1 is cut to have the same upper surface area as the fiber composite layer 2, and the surface in contact with the fiber composite layer 2 is processed into a uniform uneven state. A plurality of air holes 4 are drilled on the front substrate 1 by a drilling device, and a hot press is used with an adhesive layer to bond the substrate 1 to the front and rear sides of the fiber composite layer 2 to obtain a composite board.

[0034] Embodiment 2

[0035] The present embodiment provides a technical solution: a fiber-reinforced clad composite panel, comprising two layers of substrate 1 and a fiber composite layer 2, the fiber composite layer 2 being located between the two layers of substrate 1, the fiber composite layer 2 comprising glass fiber and adhesive, the weight proportion of the glass fiber being 40%, the weight proportion of the adhesive being 60%, the fiber composite layer 2 also comprising a solid air repellent 3, the solid air repellent 3 comprising an adsorbent material, a filler, a plasticizer, a plant extract, essential oil and stearic acid, the weight proportion of the adsorbent material being 20%, the weight proportion of the filler being 20%, the weight proportion of the plasticizer being 25%, the weight proportion of the plant extract being 4.8%, the weight proportion of the essential oil being 30%, and the weight proportion of the stearic acid being 0.2%.

[0036] The adhesive is epoxy resin, the adsorbent material is powdered polyvinyl chloride, the polyvinyl chloride material is less affected by temperature and can prevent the essential oil and plant extract from volatilizing quickly, the filler is calcium carbonate, the plasticizer is diisononyl phthalate, and the plant extract is lemon eucalyptus plant oil, which has an outstanding mosquito repellent effect.

[0037] A plurality of grooves are provided in the fiber composite layer 2 , and the solid air insect repellent 3 is filled in the grooves in a cylindrical shape. A plurality of air holes 4 communicating with the grooves are provided on the front substrate 1 .

[0038] The preparation method of the fiber reinforced cladding composite plate comprises the following steps:

[0039] S1. Preparation of raw materials for fiber composite layer 2: preparing glass powder, melting the glass powder in a high-temperature resistance furnace, maintaining the temperature at 1400°C, drawing the molten glass liquid into fibers through a metal mold, and then cooling, coating, drying and cutting the drawn glass fibers to obtain glass fibers, taking a certain amount of glass fibers, and preparing epoxy resin according to the proportion;

[0040] S2, preparation of fiber composite layer 2: using a laying device to lay multiple layers of glass fibers, placing the laid glass fibers in epoxy resin and completely immersing them therein and curing them, curing them at room temperature for 7 days, then curing them at 80°C for 2 hours, and then extruding the obtained material using a hot press to obtain fiber composite layer 2;

[0041] S3, solid air insect repellent 3 raw material preparation: when preparing lemon eucalyptus plant oil, prepare fresh or dried lemon eucalyptus leaves and twigs and distillation equipment, extract lemon eucalyptus plant oil by steam distillation, and prepare powdered polyvinyl chloride, calcium carbonate, diisononyl phthalate, lemon eucalyptus plant oil and essential oil in proportion;

[0042] S4, preparation of solid air insect repellent 3: all materials are stirred and mixed in a mixing container using a stirrer, the materials are heated using a heating device and the temperature is gradually increased to heat all the materials to a fluid state, and then the stirring is continued for 10-20 minutes, and then the materials are poured into a mold or molded using an injection molding device, and the solid air insect repellent 3 is obtained after cooling;

[0043] S5, composite board preparation: the fiber composite layer 2 and the solid air insect repellent 3 are cut into the set structure and specifications, and the cut Figure 2 In the structure shown, a plurality of receiving grooves are opened on the fiber composite layer 2 by a drilling device, and then the solid air insect repellent 3 is filled into the receiving grooves in the fiber composite layer 2, the substrate 1 is cut according to the same upper surface area as the fiber composite layer 2, and the surface in contact with the fiber composite layer 2 is processed into a uniform uneven state, a plurality of air holes 4 are drilled on the front substrate 1 by a drilling device, and the substrate 1 is bonded to the front and rear sides of the fiber composite layer 2 respectively using a hot press with an adhesive layer to obtain a composite board.

[0044] Control group 1

[0045] The present embodiment provides a technical solution: a fiber-reinforced clad composite panel, comprising two layers of substrate 1 and a fiber composite layer 2, the fiber composite layer 2 being located between the two layers of substrate 1, the fiber composite layer 2 comprising glass fiber and adhesive, the weight proportion of the glass fiber being 40%, the weight proportion of the adhesive being 60%, the fiber composite layer 2 also comprising a solid air repellent 3, the solid air repellent 3 comprising an adsorbent material, a filler, a plasticizer, essential oil and stearic acid, the weight proportion of the adsorbent material being 20%, the weight proportion of the filler being 24.8%, the weight proportion of the plasticizer being 25%, the weight proportion of the essential oil being 30%, and the weight proportion of the stearic acid being 0.2%.

[0046] The adhesive is epoxy resin, the adsorbent material is powdered polyvinyl chloride, the polyvinyl chloride material is less affected by temperature and can prevent the essential oil from volatilizing quickly, the filler is calcium carbonate, and the plasticizer is diisononyl phthalate.

[0047] The preparation method of the fiber reinforced cladding composite plate comprises the following steps:

[0048] S1. Preparation of raw materials for fiber composite layer 2: preparing glass powder, melting the glass powder in a high-temperature resistance furnace, maintaining the temperature at 1400°C, drawing the molten glass liquid into fibers through a metal mold, and then cooling, coating, drying and cutting the drawn glass fibers to obtain glass fibers, taking a certain amount of glass fibers, and preparing epoxy resin according to the proportion;

[0049] S2, preparation of fiber composite layer 2: using a laying device to lay multiple layers of glass fibers, placing the laid glass fibers in epoxy resin and completely immersing them therein and curing them, curing them at room temperature for 7 days, then curing them at 80°C for 2 hours, and then extruding the obtained material using a hot press to obtain fiber composite layer 2;

[0050] S3. Preparation of composite board: Cut the fiber composite layer 2 into set structures and specifications, cut the substrate 1 to the same upper surface area as the fiber composite layer 2, process the surface in contact with the fiber composite layer 2 into a uniform uneven state, and use a hot press to bond the substrate 1 to the front and back sides of the fiber composite layer 2 respectively with an adhesive layer to obtain a composite board.

[0051] Control group 2

[0052] This embodiment provides a technical solution: a composite board, including two layers of substrates 1 and a solid wood board, wherein the solid wood board is located between the two layers of substrates 1 .

[0053] The preparation method of the composite board comprises the following steps:

[0054] The two-layer substrate 1 and the solid wood board are cut into settings according to the set structure and specifications, the surface in contact with the solid wood board is processed into a uniform uneven state, and the substrate 1 is bonded to the front and back sides of the solid wood board using a hot press with an adhesive layer to obtain a composite board.

[0055] Three composite boards A1, A2, A3 obtained in Example 1, composite boards B1, B2, B3 obtained in Example 2, composite boards C1, C2, C3 obtained in Example 3, and composite boards D1, D2, D3 obtained in Example 4 with the same length, width and height were taken respectively, and the composite boards obtained in Example 1, the composite boards obtained in Example 2, the composite boards obtained in Example 3, and the composite boards obtained in Example 4 were used to fix three rectangular structures S1, S2, S3 with upper and lower openings. It should be noted that the composite boards obtained in Example 1 and Example 2 need to place the side with the air vent 4 on the inside to form a cavity with the side of other composite boards, and an equal amount of syrup was evenly applied on the inside of each composite board. The bottom of the rectangular structure was placed on a smooth plane, 50 mosquitoes were released into each rectangular structure, and the opening was covered from above with a glass plate. The number of mosquitoes on the four composite boards was recorded every 30 minutes, and a total of five records were recorded to obtain the following table:

[0056]

[0057]

[0058] It can be seen from the above table that the number of mosquitoes on the composite panels obtained using Example 1 and Example 2 is always very small, and the number of mosquitoes on the composite panels obtained using Example 3 and Example 4 is obviously more, so the composite panels obtained using Example 1 and Example 2 have outstanding anti-mosquito effect.

[0059] Three composite boards a1, a2, a3, a4 obtained in Example 1 and composite boards b1, b2, b3, b4 obtained in Example 2 with the same length, width and height were taken respectively, and two of the composite boards obtained in Example 1 and Example 2 were used to form two rectangular structures s1 and s2 with upper and lower openings. a1, a2, b1, b2 were combined into s1, and a3, a3, b4, b4 were combined into s2. It should be noted that the composite boards obtained in Example 1 and Example 2 need to have the side with the air vent 4 placed inside, and the same boards are arranged relatively to each other. An equal amount of syrup is evenly applied to the inside of each composite board, and the bottom of the rectangular structure is placed on a smooth plane. 50 mosquitoes are released into each rectangular structure, and a glass plate is used to cover the opening from above. The number of mosquitoes on the four composite boards is recorded every 30 minutes, and a total of five records are recorded as the first record. Then, a second record is made at an interval of three months to obtain the following table:

[0060]

[0061]

[0062] It can be seen from the above table that in the first record, when the composite panels obtained in Example 1 and Example 2 are in use, some mosquitoes will attach to the wall, and the number of mosquitoes attached to the composite panels obtained in Example 1 and Example 2 is similar, so the anti-mosquito effect is similar. In the second record, the number of mosquitoes attached to the composite panel obtained in Example 1 has increased significantly compared with the first record, and the number of mosquitoes attached to the composite panel obtained in Example 2 is not much different from the first record. Therefore, the anti-mosquito effect of the composite panel obtained in Example 2 is more lasting than that of the composite panel obtained in Example 1.

[0063] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. Those skilled in the art understand that many changes, modifications, and even equivalences can be made to the present invention within the spirit and scope defined by the claims, but they will all fall within the scope of protection of the present invention.

Claims

1. A fiber-reinforced cladding composite panel, characterized in that: The invention comprises two layers of substrates (1) and a fiber composite layer (2), wherein the fiber composite layer (2) is located between the two layers of substrates (1), the fiber composite layer (2) comprises glass fiber and adhesive, wherein the weight of the glass fiber accounts for 30%-50%, and the weight of the adhesive accounts for 50%-70%. The fiber composite layer (2) further comprises a solid air insect repellent (3), wherein the solid air insect repellent (3) comprises an adsorbent material, a filler, a plasticizer, a plant extract and an essential oil, wherein the weight of the adsorbent material accounts for 20%-30%, the weight of the filler accounts for 20%-30%, the weight of the plasticizer accounts for 20%-30%, the weight of the plant extract accounts for 3%-5%, and the weight of the essential oil accounts for 30%-35%.

2. A fiber-reinforced cladding composite panel according to claim 1, characterized in that: The adhesive is epoxy resin, the adsorbent material is powdered polyvinyl chloride, the filler is calcium carbonate, the plasticizer is diisononyl phthalate, and the plant extract is eucalyptus citriodora plant oil.

3. A fiber-reinforced cladding composite panel as claimed in claim 2, characterized in that: The solid air insect repellent (3) further comprises stearic acid, and the weight proportion of the stearic acid is 0.2%-0.5%.

4. A fiber-reinforced cladding composite panel as claimed in claim 3, characterized in that: The solid air insect repellent (3) is placed in a layered manner between the front substrate (1) and the fiber composite layer (2), and a plurality of air holes (4) are provided on the front substrate (1).

5. The fiber-reinforced cladding composite panel according to claim 3, characterized in that: The fiber composite layer (2) is provided with a plurality of grooves, the solid air insect repellent (3) is in a columnar shape and filled in the grooves, and the front substrate (1) is provided with a plurality of air holes (4) connected to the grooves.

6. A method for preparing a fiber-reinforced clad composite board, the method being applied to the composite board according to claim 4 or 5, characterized in that: The following steps are involved: S1. Fiber composite layer (2) Raw material preparation: glass powder is prepared, and the glass powder is melted in a high-temperature resistance furnace at a temperature maintained at 1400° C. The molten glass liquid is drawn into fibers through a metal mold, and then the drawn glass fibers are cooled, coated, dried and cut to obtain glass fibers. A certain amount of glass fibers is taken and epoxy resin is prepared according to a proportion; S2. Preparation of fiber composite layer (2): using a laying device to lay multiple layers of glass fibers, placing the laid glass fibers in epoxy resin and completely immersing them therein and curing them, wherein the curing is performed at room temperature for 7 days, and then at 80-120° C. for 1-2 hours, and then the obtained material is extruded by a hot press to obtain the fiber composite layer (2); S3. Solid air insect repellent (3) Raw material preparation: When preparing lemon eucalyptus plant oil, prepare fresh or dried lemon eucalyptus leaves and twigs and distillation equipment, extract lemon eucalyptus plant oil by steam distillation, and prepare powdered polyvinyl chloride, calcium carbonate, diisononyl phthalate, lemon eucalyptus plant oil and essential oil in proportion; S4. Preparation of solid air insect repellent (3): all materials are stirred and mixed in a mixing container using a stirrer, and the materials are heated using a heating device and the temperature is gradually increased so that all the materials are heated to a fluid state, and then the stirring is continued for 10-20 minutes, and then the materials are poured into a mold or molded using an injection molding device, and the solid air insect repellent (3) is obtained after cooling; S5. Preparation of composite board: the fiber composite layer (2) and the solid air insect repellent (3) are cut into set shapes according to set structures and specifications, and then the solid air insect repellent (3) is filled into the fiber composite layer (2). The substrate (1) is cut to have the same upper surface area as the fiber composite layer (2), and the surface in contact with the fiber composite layer (2) is processed into a uniform uneven state. A plurality of air holes (4) are drilled on the front substrate (1) by a drilling device, and the substrate (1) is bonded to the front and rear sides of the fiber composite layer (2) respectively using a hot press with an adhesive layer to obtain a composite board.

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