CN219564369U

CN219564369U - Waterproof bamboo plywood

Info

Publication number: CN219564369U
Application number: CN202320401071.7U
Authority: CN
Inventors: 徐丕勇
Original assignee: Zhejiang Huali Furniture Co ltd
Current assignee: Zhejiang Huali Furniture Co ltd
Priority date: 2023-03-07
Filing date: 2023-03-07
Publication date: 2023-08-22
Anticipated expiration: 2033-03-07

Abstract

The utility model discloses a waterproof bamboo plywood, which relates to the technical field of bamboo plywood and comprises a core plate, and is characterized in that the side wall of the core plate is provided with a sealing edge, the top surface of the core plate is provided with a surface layer, the bottom surface of the core plate is provided with a bottom layer, the core plate, the surface layer, the bottom layer and the sealing edge are fixed through resin adhesive, and waterproof layers are arranged on the outer surfaces of the surface layer and the bottom layer. According to the utility model, external moisture is effectively prevented from entering the inside of the bamboo plywood, and adverse phenomena such as deformation, warping or cracking of the bamboo plywood are avoided.

Description

Waterproof bamboo plywood

Technical Field

The utility model relates to the technical field of bamboo plywood, in particular to a waterproof bamboo plywood.

Background

In engineering construction and decoration engineering processes, people often use bamboo plywood which is popular with people due to its good quality, light weight and low price.

The prior patent (bulletin number: CN 202922693U) proposes a bamboo plywood, which comprises an upper bamboo layer, a middle layer and a lower bamboo layer, wherein the upper surface and the lower surface of the middle layer are respectively connected with the lower surface of the upper bamboo layer and the upper surface of the lower bamboo layer through rough surface glue, the fiber direction of the middle layer is respectively vertical to the fiber directions of the upper bamboo layer and the lower bamboo layer, the middle layer comprises a plurality of layers of bamboo materials, and the bamboo materials of all layers are connected through rough surface glue, so that the strength is higher, the toughness is better, and the bamboo plywood is compression-resistant and bending-resistant.

The bamboo plywood has the following defects in use: the waterproof performance of bamboo glued board is relatively poor when in actual use, receives the water wet at the bamboo glued board and leads to the bamboo glued board to appear layering, split phenomenon easily through the insolateing again, and then has reduced the durability of bamboo glued board, has shortened the life of bamboo glued board, and for this reason, we propose a waterproof bamboo glued board and solve above-mentioned problem.

Disclosure of Invention

The utility model provides a waterproof bamboo plywood, which solves the technical problems that the waterproof performance of the bamboo plywood is poor in actual use, and the bamboo plywood is easy to laminate and split after being subjected to water wetting and sun drying, so that the durability of the bamboo plywood is reduced, and the service life of the bamboo plywood is shortened.

In order to solve the technical problems, the waterproof bamboo plywood provided by the utility model comprises a core plate, wherein the side wall of the core plate is provided with a sealing edge, the top surface of the core plate is provided with a surface layer, the bottom surface of the core plate is provided with a bottom layer, the core plate, the surface layer, the bottom layer and the sealing edge are fixedly bonded through resin adhesive, and waterproof layers are arranged on the outer surfaces of the surface layer and the bottom layer.

Preferably, the waterproof layer comprises a thermosetting resin impregnated paper, an impermeable coating and a hydrophobic coating, wherein the thermosetting resin impregnated paper is adhered to form a fixation with the surface layer and the bottom layer through adhesion, the impermeable coating is coated on the outer surface of the thermosetting resin impregnated paper, and the hydrophobic coating is coated on the outer surface of the impermeable coating.

Preferably, the material of the anti-seepage coating is modified polyurethane coating, and the thickness of the anti-seepage coating is 1-4 mu m.

Preferably, the material of the hydrophobic coating is Teflon coating, and the thickness of the hydrophobic coating is 1-3 mu m.

Preferably, a finger joint tooth is arranged on one side of the edge sealing close to the core plate, and an embedded groove matched with the finger joint tooth is formed in the outer side wall of the core plate.

Preferably, the core board is formed by bonding and extruding a plurality of long bamboo square strips with standard specifications side by side, and the adjacent long bamboo square strips are bonded by resin glue.

Preferably, the surface layer and the bottom layer are formed by crisscross bamboo mats and bamboo sheets in sequence.

Preferably, the surface layer, the bottom layer and the surface of the core plate, which are attached to each other, are provided with rough surfaces.

Compared with the related art, the waterproof bamboo plywood provided by the utility model has the following beneficial effects:

1. according to the utility model, the arranged heat-setting resin impregnated paper and the waterproof coating effectively prevent external moisture from entering the inside of the bamboo plywood, so that adverse phenomena such as deformation, warping or cracking of the bamboo plywood are avoided, the surface of the arranged hydrophobic coating Teflon coating is not sticky to water and oil, and is not easy to be sticky to solution in production and use, so that the surface of the bamboo plywood has good surface hydrophobic capability, and the service life of the bamboo plywood is prolonged.

2. In the utility model, the core plate is formed by bonding and extruding a plurality of long bamboo square strips with standard specifications side by side, and the adjacent long bamboo square strips are bonded by resin glue, so that the supporting strength of the bamboo plywood is enhanced, the deformation of the bamboo plywood is prevented, the deformation-preventing strength of the bamboo plywood is further enhanced, the surface layer and the bottom layer are respectively formed by criss-cross bamboo mats and bamboo sheets in sequence, so that the two-way strength of the enhanced bamboo plywood is enhanced, and the strength and the wear resistance of the outer surface of the bamboo plywood are improved.

Drawings

FIG. 1 is a schematic structural view of a waterproof bamboo plywood;

FIG. 2 is a schematic cross-sectional view of a waterproof bamboo plywood;

FIG. 3 is a schematic view showing a layered structure of a waterproof layer in a waterproof bamboo plywood;

fig. 4 is an enlarged view of the structure at a in fig. 2.

Reference numerals in the drawings: 1. a core plate; 2. a surface layer; 3. a bottom layer; 4. sealing edges; 5. a waterproof layer; 501. heat setting the resin-impregnated paper; 502. an anti-seepage coating; 503. a hydrophobic coating; 6. resin glue; 7. finger joint teeth.

Detailed Description

Embodiments of the present utility model are described in detail below.

An embodiment I is given by fig. 1-4, a waterproof bamboo plywood, including core 1, core 1 lateral wall is provided with banding 4, and core 1 top surface is provided with top layer 2, and core 1 bottom surface is provided with bottom 3, and core 1, top layer 2, bottom 3 and banding 4 are fixed through the bonding of resin glue 6, and the surface of top layer 2 and bottom 3 all is provided with waterproof layer 5.

In the second embodiment, as shown in fig. 1 to 4, on the basis of the first embodiment, the waterproof coating 5 includes a thermosetting resin impregnated paper 501, an impermeable coating 502 and a hydrophobic coating 503, the thermosetting resin impregnated paper 501 is adhered to and fixed with the surface layer 2 and the bottom layer 3 by adhesion, the impermeable coating 502 is coated on the outer surface of the thermosetting resin impregnated paper 501, the hydrophobic coating 503 is coated on the outer surface of the impermeable coating 502, and external moisture is effectively prevented from entering the inside of the bamboo plywood by the thermosetting resin impregnated paper 501 and the impermeable coating 502, so that adverse phenomena such as deformation, warping or cracking of the bamboo plywood are avoided.

The material of the anti-seepage coating 502 is modified polyurethane paint, the thickness of the anti-seepage coating 502 is 1-4 mu m, the modified polyurethane paint has good waterproof performance, and external water is prevented from invading the inside of the bamboo plywood, so that the bamboo plywood has good waterproof performance.

The hydrophobic coating 503 is made of Teflon coating, the thickness of the hydrophobic coating 503 is 1-3 mu m, the surface of the Teflon coating is not sticky to water and oil, and the surface of the Teflon coating is not easy to be sticky to solution during production and use, so that the surface of the bamboo plywood has good surface hydrophobicity.

In addition, in order to improve the stability of the connection of the core plate 1 and the sealing edge 4, one side of the sealing edge 4, which is close to the core plate 1, is provided with a finger joint tooth 7, and the outer side wall of the core plate 1 is provided with an embedded groove which is matched with the finger joint tooth 7.

In addition, in order to enhance the supporting strength of the bamboo plywood, the deformation of the bamboo plywood is prevented, the deformation preventing strength of the bamboo plywood is further enhanced, the core board 1 is formed by bonding and extruding a plurality of long bamboo square strips with standard specifications side by side, and the adjacent long bamboo square strips are bonded by the resin adhesive 6.

In addition, in order to enhance the bidirectional strength of the bamboo plywood, the strength and the wear resistance of the outer surface of the bamboo plywood are improved, and the surface layer 2 and the bottom layer 3 are formed by crisscross bamboo mats and bamboo sheets in sequence.

In addition, in order to enhance the adhesive force between the surface layer 2 and the bottom layer 3 and the core plate 1, the bonding among the core plate 1, the surface layer 2 and the bottom layer 3 is more stable, and the surface of the surface layer 2 and the bottom layer 3, which is attached to the core plate 1, is provided with a rough surface.

Working principle: through the thermosetting resin impregnated paper 501 and the anti-seepage coating 502 that set up, prevented effectively that external moisture from getting into the inside of bamboo glued membrane, avoided the bamboo glued membrane to take place bad phenomenon such as deformation, warpage or fracture, the hydrophobic coating 503 Teflon coating surface that sets up is not stained with water and oil, also is difficult for being stained with the solution during the production use for the bamboo glued membrane surface possesses good surface hydrophobic ability.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a waterproof bamboo plywood, includes core (1), its characterized in that, core (1) lateral wall is provided with banding (4), core (1) top surface is provided with top layer (2), core (1) bottom surface is provided with bottom (3), bond fixedly through resin glue (6) between core (1), top layer (2), bottom (3) and banding (4), the surface of top layer (2) and bottom (3) all is provided with waterproof layer (5).

2. The waterproof bamboo plywood according to claim 1, wherein the waterproof layer (5) comprises a thermosetting resin impregnated paper (501), an impermeable coating (502) and a hydrophobic coating (503), the thermosetting resin impregnated paper (501) is fixed with the surface layer (2) and the bottom layer (3) by bonding, the impermeable coating (502) is coated on the outer surface of the thermosetting resin impregnated paper (501), and the hydrophobic coating (503) is coated on the outer surface of the impermeable coating (502).

3. The waterproof bamboo plywood according to claim 2, wherein the impermeable coating (502) is made of modified polyurethane paint, and the impermeable coating (502) has a thickness of 1-4 μm.

4. The waterproof bamboo plywood according to claim 2, wherein the hydrophobic coating (503) is made of teflon coating, and the thickness of the hydrophobic coating (503) is 1-3 μm.

5. The waterproof bamboo plywood according to claim 1, wherein finger joint teeth (7) are arranged on one side, close to the core board (1), of the edge sealing (4), and embedded grooves matched with the finger joint teeth (7) are formed in the outer side wall of the core board (1).

6. A waterproof bamboo plywood according to claim 1, characterized in that the core (1) is formed by a plurality of standard long bamboo square strips bonded and extruded side by side, and the adjacent long bamboo square strips are bonded by resin glue (6).

7. The waterproof bamboo plywood according to claim 1, wherein the surface layer (2) and the bottom layer (3) are formed by crisscross bamboo mats and bamboo sheets in sequence.

8. The waterproof bamboo plywood according to claim 1, wherein the surface layer (2) and the bottom layer (3) are provided with rough surfaces on the surface which is attached to the core board (1).