Acid-resistant and alkali-resistant medium-density fiberboard

Abstract

The utility model provides an acid-resistant and alkali-resistant medium-density fiberboard, which relates to the technical field of medium-density fiberboards and comprises a base plate, a heat insulation layer fixedly connected to the outer surface wall of the base plate, a buffer layer fixedly connected to the outer surface wall of the heat insulation layer, and a first acid-resistant and alkali-resistant coating fixedly connected to the outer surface wall of the buffer layer. A wear-resisting layer is fixedly connected to the outer surface wall of the first acid-resisting and alkali-resisting coating, a second acid-resisting and alkali-resisting coating, a buffer layer and a heat insulation layer are evenly sprayed to the outer surface wall of the wear-resisting layer, four fixing grooves are formed in the base plate, and under the action of the second acid-resisting and alkali-resisting coating, when the surface of the fiberboard makes contact with acid and alkali, the acid and the alkali can be effectively resisted; and under the action of the first acid-base resistant coating, when the acid-base strength is too high and the wear-resistant layer is penetrated, the acid and the base can be resisted again, so that the acid and the base can be blocked at the wear-resistant layer, and the base plate is prevented from being influenced by the acid and the base.

Description

Technical Field

[0001] The utility model relates to the technical field of medium density fiberboards, in particular to an acid and alkali resistant medium density fiberboard. Background Art

[0002] Medium-density fiberboard (MDF) is a man-made board made of wood fiber and adhesive processed under high temperature and high pressure. It is a homogeneous board with a flat surface and consistent density. It is suitable for various furniture, decoration and construction applications. Medium-density fiberboard is usually made by mixing wood fibers (such as wood chips, wood chips, etc.) and adhesives (such as urea-formaldehyde resin, phenolic resin, etc.) and then hot-pressing them. Since the size and density of the fibers can be controlled during the production process, medium-density fiberboard has good processing properties and can be cut, drilled, carved, etc., and is not prone to cracks and deformation.

[0003] However, when the existing medium-density fiberboard is used, the surface of the fiberboard may be corroded by strong acids and alkalis, which may cause pits to appear on the surface of the fiberboard, damage the internal structure of the fiberboard, cause the fiberboard to deform, reduce the original strength of the medium-density fiberboard, and reduce its use efficiency. Utility Model Content

[0004] The utility model aims to solve the problem that when a medium density fiberboard is in use, the surface of the fiberboard may be corroded by strong acids and alkalis, which may cause holes to appear on the surface of the fiberboard, damage the internal structure of the fiberboard, cause deformation of the fiberboard, reduce the original strength of the medium density fiberboard, and reduce its use efficiency. An acid and alkali resistant medium density fiberboard is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an acid-resistant and alkali-resistant medium-density fiberboard, comprising a substrate, the outer wall of the substrate is fixedly connected to a heat insulation layer, the outer wall of the heat insulation layer is fixedly connected to a buffer layer, the outer wall of the buffer layer is fixedly connected to a first acid-resistant and alkali-resistant coating, the outer wall of the first acid-resistant and alkali-resistant coating is fixedly connected to a wear-resistant layer, and the outer wall of the wear-resistant layer is evenly sprayed with a second acid-resistant and alkali-resistant coating.

[0006] Preferably, four fixing grooves are opened inside the buffer layer, the heat insulation layer and the base plate, and reinforcing ribs are fixedly connected inside the four fixing grooves.

[0007] Preferably, the thermal insulation layer is made of thermal insulation fiber cloth, and the thickness of the thermal insulation layer is 0.5mm-3mm.

[0008] Preferably, the buffer layer is made of polyethylene or polyurethane, and the thickness of the buffer layer is 0.5 mm-3 mm.

[0009] Preferably, the first acid- and alkali-resistant coating and the second acid- and alkali-resistant coating are made of epoxy coating, and the thickness of the first acid- and alkali-resistant coating is 1 mm-5 mm, and the thickness of the second acid- and alkali-resistant coating is 0.5 mm-3 mm.

[0010] Preferably, the wear-resistant layer is a polyurethane layer, and the thickness of the wear-resistant layer is 2 mm-8 mm.

[0011] Preferably, the reinforcing ribs are made of carbon fiber reinforcing ribs.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, the second acid-resistant and alkali-resistant coating can effectively resist the acid and alkali when the surface of the fiberboard contacts the acid and alkali, thereby preventing the fiberboard from being corroded by the acid and alkali and extending the service life of the fiberboard. Then, the first acid-resistant and alkali-resistant coating can resist the acid and alkali again when the acid and alkali strength is too high and penetrates the wear-resistant layer, so that the acid and alkali can be blocked in the wear-resistant layer, thereby preventing the substrate from being affected by the acid and alkali.

[0014] 2. In the utility model, by cooperating with the fixing groove and the reinforcing rib, the bonding stability of the fiberboard can be improved during bonding, and the acid and alkali resistance of the fiberboard can be improved, thereby extending the service life of the fiberboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model provides a main structural schematic diagram of an acid-resistant and alkali-resistant medium-density fiberboard;

[0016] Figure 2 The utility model provides a schematic diagram of the structure of the position of the fixing groove in the acid and alkali resistant medium density fiberboard;

[0017] Figure 3 The utility model provides a schematic diagram of the installation position structure of the reinforcing ribs in the acid and alkali resistant medium density fiberboard;

[0018] Figure 4 The utility model provides a schematic diagram of the internal structure of an acid-resistant and alkali-resistant medium-density fiberboard.

[0019] Legend: 1. Base plate; 2. Heat insulation layer; 3. Buffer layer; 4. First acid and alkali resistant coating; 5. Wear-resistant layer; 6. Reinforcement ribs; 7. Second acid and alkali resistant coating; 8. Fixing groove. DETAILED DESCRIPTION

[0020] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0021] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. Example

[0022] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: an acid-resistant and alkali-resistant medium-density fiberboard, comprising a substrate 1, an outer wall of the substrate 1 is fixedly connected with a heat insulation layer 2, an outer wall of the heat insulation layer 2 is fixedly connected with a buffer layer 3, an outer wall of the buffer layer 3 is fixedly connected with a first acid-resistant and alkali-resistant coating 4, an outer wall of the first acid-resistant and alkali-resistant coating 4 is fixedly connected with a wear-resistant layer 5, an outer wall of the wear-resistant layer 5 is uniformly sprayed with a second acid-resistant and alkali-resistant coating 7, four fixed grooves 8 are opened inside the buffer layer 3, the heat insulation layer 2, and the substrate 1, and reinforcing ribs 6 are fixedly connected inside the four fixed grooves 8.

[0023] In this embodiment, firstly, through the action of the heat-insulating layer 2, the fiberboard is protected from the substrate 1 when used in a high-temperature environment, so as to prevent the substrate 1 from being affected by the high temperature, causing damage to the internal structure of the substrate 1, thereby improving the heat resistance of the overall fiberboard. Then, under the action of the buffer layer 3, when the fiberboard surface is impacted, the buffer layer 3 can absorb the impact force, so as to prevent the fiberboard from being affected by the impact, causing damage to the fiberboard, thereby improving its use efficiency and increasing its service life. Then, under the action of the second acid-resistant and alkali-resistant coating 7, the surface of the fiberboard can initially resist the corrosion of strong acids and alkalis when it contacts strong acids and alkalis, thereby preventing the fiberboard from being corroded, deformed or damaged when it is eroded by acids and alkalis, thereby improving the heat resistance of the fiberboard. The high acid and alkali resistance of the fiberboard increases its service life. The wear-resistant layer 5 prevents the surface of the fiberboard from being easily worn, thereby improving the wear resistance of the fiberboard and extending the service life of the fiberboard. When the acid and alkali strength to which the fiberboard is subjected is too high, the acid and alkali pass through the wear-resistant layer 5. The first acid and alkali resistant coating 4 blocks the acid and alkali at the wear-resistant layer 5, thereby protecting the substrate 1, extending the service life of the fiberboard and improving its use efficiency. The fixing groove 8 allows the reinforcing ribs 6 to be fixedly glued to the inside of the fiberboard. The reinforcing ribs 6 allow the structure inside the fiberboard to be bonded more stably, and when in use, the stability and strength of the fiberboard can be improved. Example

[0024] like Figure 1-Figure 4As shown, the thermal insulation layer 2 adopts thermal insulation fiber cloth, and the thickness of the thermal insulation layer 2 is 0.5mm-3mm, the buffer layer 3 adopts polyethylene or polyurethane layer, and the thickness of the buffer layer 3 is 0.5mm-3mm, the first acid and alkali resistant coating 4 and the second acid and alkali resistant coating 7 adopt epoxy paint, and the thickness of the first acid and alkali resistant coating 4 is 1mm-5mm, the thickness of the second acid and alkali resistant coating 7 is 0.5mm-3mm, the wear-resistant layer 5 adopts polyurethane layer, and the thickness of the wear-resistant layer is 2mm-8mm, and the reinforcement ribs 6 adopt carbon fiber reinforcement ribs.

[0025] In this embodiment, the heat insulating layer 2 adopts heat insulating fiber cloth. Some heat insulating fiber cloths have good corrosion resistance and are not easily corroded by chemical substances. They are suitable for heat insulation and heat preservation requirements in some special environments, and can further improve the acid and alkali resistance of the fiberboard and improve the heat insulation performance of the fiberboard. Then, the buffer layer 3 adopts a polyethylene or polyurethane layer. The polyethylene or polyurethane layer can also reduce the possibility of the substrate 1 being corroded by chemical substances, and can also reduce the impact of the fiberboard on the fiberboard, thereby extending the service life of the fiberboard. Then, the first acid and alkali resistant coating 4 and the second acid and alkali resistant coating 7 adopt epoxy coating. The epoxy coating It has excellent wear resistance and corrosion resistance, and can effectively protect the surface of the coated object from the influence of chemicals, corrosive substances and abrasion. The epoxy coating can effectively prevent water and moisture, avoid dampness and rot of the fiberboard, and extend the service life of the fiberboard. The wear-resistant layer 5 adopts a polyurethane layer, which can resist wear and reduce the contact between the substrate 1 and external objects, thereby extending the service life of the fiberboard. Finally, the reinforcement rib 6 adopts a carbon fiber reinforcement rib, which is light, high-strength and corrosion-resistant. While improving the bonding stability of the fiberboard, it can also improve the acid and alkali resistance of the fiberboard and extend its service life.

[0026] The working principle of this embodiment is as follows: first, through the action of the heat-insulating layer 2, the fiberboard can protect the substrate 1 when used in a high-temperature environment. Then, under the action of the buffer layer 3, when the surface of the fiberboard is impacted, the buffer layer 3 can absorb the impact force. Then, under the action of the second acid- and alkali-resistant coating 7, the surface of the fiberboard can initially resist the corrosion of strong acids and alkalis when it contacts strong acids and alkalis, and prevent the fiberboard from being corroded, deformed or damaged when it is eroded by acids and alkalis. Then, through the action of the wear-resistant layer 5, the surface of the fiberboard is prevented from being easily worn. When the acid and alkali strength to which the fiberboard is subjected is too high, the acid and alkali pass through the wear-resistant layer 5. Through the action of the first acid- and alkali-resistant coating 4, the acid and alkali are blocked at the wear-resistant layer 5, so that the substrate 1 can be protected. Then, through the action of the fixing groove 8, the reinforcing ribs 6 can be fixedly glued to the inside of the fiberboard. With the action of the reinforcing ribs 6, the structure inside the fiberboard can be bonded more stably.

[0027] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An acid and alkali resistant medium density fiberboard, characterized by: The invention comprises a substrate (1), an outer wall of the substrate (1) being fixedly connected to a heat insulating layer (2), an outer wall of the heat insulating layer (2) being fixedly connected to a buffer layer (3), an outer wall of the buffer layer (3) being fixedly connected to a first acid-resistant and alkali-resistant coating (4), an outer wall of the first acid-resistant and alkali-resistant coating (4) being fixedly connected to a wear-resistant layer (5), and an outer wall of the wear-resistant layer (5) being uniformly sprayed with a second acid-resistant and alkali-resistant coating (7).

2. The acid and alkali resistant medium density fiberboard according to claim 1, characterized in that: Four fixing grooves (8) are provided inside the buffer layer (3), the heat insulation layer (2) and the base plate (1), and reinforcing ribs (6) are fixedly connected inside the four fixing grooves (8).

3. The acid and alkali resistant medium density fiberboard according to claim 1, characterized in that: The heat insulation layer (2) is made of heat insulation fiber cloth, and the thickness of the heat insulation layer (2) is between 0.5 mm and 3 mm.

4. The acid and alkali resistant medium density fiberboard according to claim 2, characterized in that: The buffer layer (3) is made of polyethylene or polyurethane, and the thickness of the buffer layer (3) is between 0.5 mm and 3 mm.

5. The acid and alkali resistant medium density fiberboard according to claim 1, characterized in that: The first acid-resistant and alkali-resistant coating (4) and the second acid-resistant and alkali-resistant coating (7) are made of epoxy paint, and the thickness of the first acid-resistant and alkali-resistant coating (4) is 1 mm to 5 mm, and the thickness of the second acid-resistant and alkali-resistant coating (7) is 0.5 mm to 3 mm.

6. The acid and alkali resistant medium density fiberboard according to claim 1, characterized in that: The wear-resistant layer (5) is a polyurethane layer, and the thickness of the wear-resistant layer is 2 mm to 8 mm.

7. The acid and alkali resistant medium density fiberboard according to claim 2, characterized in that: The reinforcing ribs (6) are carbon fiber reinforcing ribs.

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