Ethylene vinyl acetate (EVA) waterproof board with strong flame retardant property

Abstract

The utility model belongs to the field of water resistance, particularly relates to an EVA (ethylene-vinyl acetate) waterproof board with strong flame retardant property, and provides the following scheme aiming at the problems that the existing EVA waterproof board does not have flame retardant property and is easy to lose waterproof capability: the EVA waterproof board comprises a main EVA plastic layer; the adhesive layer is adhered to the bottom of the main EVA plastic layer; the auxiliary EVA plastic layer is adhered to the bottom of the adhesive layer; the phenolic aldehyde fireproof plate is adhered to the bottom of the auxiliary EVA plastic layer; the auxiliary SVT intumescent fireproof coating is adhered to the bottom of the phenolic aldehyde fireproof plate; the soft silica gel buffer layer is adhered to the top of the main EVA plastic layer; and the main SVT intumescent fireproof coating is adhered to the top of the soft silica gel buffer layer, so that the high-temperature resistance of the waterproof plate can be improved, the waterproof plate is not easy to ignite when encountering open fire, the waterproof plate has excellent flame retardance, the overall strength of the waterproof plate can be improved, the waterproof plate is not easy to damage when encountering pressure, and the waterproof performance is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of waterproofing, in particular to an EVA waterproofing board with strong flame retardancy. Background Art

[0002] EVA waterproof board is often used in various projects that require waterproofing, such as tunnel projects. A Chinese patent document with publication number: CN207466050U discloses an EVA waterproof board.

[0003] However, the above technical solution is not resistant to high temperatures and is prone to softening, aging, or even burning after being exposed to high temperatures, which will destroy the integrity of the waterproof board and cause the waterproof board to lose its waterproof performance. Utility Model Content

[0004] The utility model aims to solve the shortcomings of the prior art that the EVA waterproof board has no flame retardancy and easily loses its waterproof ability, and proposes an EVA waterproof board with strong flame retardancy.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An EVA waterproof board with strong flame retardancy, comprising

[0007] Main EVA plastic layer;

[0008] An adhesive layer, the adhesive layer is bonded to the bottom of the main EVA plastic layer;

[0009] A secondary EVA plastic layer, the secondary EVA plastic layer is bonded to the bottom of the adhesive layer;

[0010] Phenolic fireproof board, the phenolic fireproof board is bonded to the bottom of the secondary EVA plastic layer;

[0011] A secondary SVT intumescent fireproof coating, the secondary SVT intumescent fireproof coating is bonded to the bottom of the phenolic fireproof board;

[0012] Soft silicone cushioning layer, which is bonded to the top of the main EVA plastic layer;

[0013] The main SVT intumescent fire retardant coating is bonded to the top of the soft silicone buffer layer. The structural setting can improve the high temperature resistance of the waterproof board. It is not easy to be ignited when encountering open flames. It has excellent flame retardancy. And through the multi-layer structure, the overall strength of the waterproof board can be improved. It is not easy to be damaged when encountering pressure, ensuring the waterproof performance.

[0014] As a preferred solution of the utility model, the adhesive layer includes a polymer high temperature resistant adhesive layer, a nylon mesh and a glass fiber mesh cloth. The nylon mesh is located on the top of the glass fiber mesh cloth, and the polymer high temperature resistant adhesive layer is impregnated with the surface of the nylon mesh and the glass fiber mesh cloth. The nylon mesh and the glass fiber mesh cloth are used to enhance the strength of the entire waterproof board. The polymer high temperature resistant adhesive layer can form the nylon mesh and the glass fiber mesh cloth into an adhesive layer, and the main EVA plastic layer is connected to the secondary EVA plastic layer through the polymer high temperature resistant adhesive layer.

[0015] As a preferred solution of the utility model, the adhesive layer is respectively bonded to the main EVA plastic layer and the secondary EVA plastic layer through a high molecular high temperature resistant adhesive layer, so that the main EVA plastic layer and the secondary EVA plastic layer can be connected and fixed to form a double-layer structure.

[0016] As a preferred solution of the utility model, the bottom of the main EVA plastic layer is integrally processed with a T-shaped main clamping block, the top of the auxiliary EVA plastic layer is integrally processed with a T-shaped auxiliary clamping block, the top and bottom of the adhesive layer are both provided with fixed clamping grooves, the T-shaped main clamping block and the T-shaped auxiliary clamping block are both clamped with the fixed clamping grooves, and the cooperation of the T-shaped main clamping block, the T-shaped auxiliary clamping block and the fixed clamping groove can enhance the connection strength between the main EVA plastic layer and the auxiliary EVA plastic layer.

[0017] As a preferred solution of the utility model, a metal mesh is embedded in the interior of the soft silicone buffer layer. The thickness of the metal mesh is 0.1 mm. The metal mesh is used to strengthen the strength of the soft silicone buffer layer.

[0018] As a preferred solution of the utility model, a waterproof layer is bonded between the outer sides of the main SVT intumescent fire retardant coating and the secondary SVT intumescent fire retardant coating, and the waterproof layer has a waterproof effect and can fill the gaps between the layers of materials.

[0019] Beneficial effects:

[0020] 1. The use of phenolic fireproof board, secondary SVT intumescent fireproof coating and main SVT intumescent fireproof coating can enhance the high temperature resistance of waterproof board and improve the flame retardant effect;

[0021] 2. The strength of the waterproof board can be enhanced by using a multilayer material of a main EVA plastic layer, an adhesive layer, a secondary EVA plastic layer, a phenolic fireproof board, a secondary SVT intumescent fireproof coating, a soft silicone buffer layer and a main SVT intumescent fireproof coating;

[0022] In the utility model: the high temperature resistance of the waterproof board can be improved through structural settings, it is not easy to be ignited when encountering open flames, and has excellent flame retardancy. In addition, the multi-layer structure can improve the overall strength of the waterproof board, and it is not easy to be damaged when encountering pressure, thereby ensuring waterproof performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the front view of the utility model;

[0024] Figure 2 This is the adhesive layer diagram of the utility model;

[0025] Figure 3 This is a diagram of a T-shaped main card block of the utility model;

[0026] Figure 4 This is a metal mesh diagram of the present utility model.

[0027] In the figure: 1. Main EVA plastic layer; 2. Adhesive layer; 21. High polymer high temperature resistant adhesive layer; 22. Nylon mesh; 23. Glass fiber mesh cloth; 3. Secondary EVA plastic layer; 4. Phenolic fireproof board; 5. Secondary SVT intumescent fireproof coating; 6. Soft silicone buffer layer; 7. Metal mesh; 8. Main SVT intumescent fireproof coating; 9. T-shaped main clamp; 10. T-shaped secondary clamp; 11. Fixed slot; 12. Waterproof layer. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] Example

[0030] Reference Figure 1-Figure 4 , an EVA waterproof board with strong flame retardant performance, comprising

[0031] Main EVA plastic layer 1;

[0032] Adhesive layer 2, the adhesive layer 2 is bonded to the bottom of the main EVA plastic layer 1;

[0033] A secondary EVA plastic layer 3, the secondary EVA plastic layer 3 is bonded to the bottom of the adhesive layer 2;

[0034] A phenolic fireproof board 4, which is bonded to the bottom of the secondary EVA plastic layer 3;

[0035] A secondary SVT intumescent fireproof coating 5, the secondary SVT intumescent fireproof coating 5 is bonded to the bottom of the phenolic fireproof board 4;

[0036] A soft silicone buffer layer 6, wherein the soft silicone buffer layer 6 is bonded to the top of the main EVA plastic layer 1;

[0037] The main SVT intumescent fire retardant coating 8 is bonded to the top of the soft silica gel buffer layer 6 .

[0038] Through the above structure: the high temperature resistance of the waterproof board can be improved through the structural setting, it is not easy to be ignited when encountering open flames, and it has excellent flame retardancy. In addition, through the multi-layer structure, the overall strength of the waterproof board can be improved, and it is not easy to be damaged when encountering pressure, thereby ensuring the waterproof performance.

[0039] See also Figure 2 The adhesive layer 2 includes a polymer high temperature resistant adhesive layer 21, a nylon mesh 22 and a glass fiber mesh cloth 23. The nylon mesh 22 is located on the top of the glass fiber mesh cloth 23. The polymer high temperature resistant adhesive layer 21 is impregnated in the surface of the nylon mesh 22 and the glass fiber mesh cloth 23. The nylon mesh 22 and the glass fiber mesh cloth 23 are used to enhance the strength of the entire waterproof board. The polymer high temperature resistant adhesive layer 21 can form the nylon mesh 22 and the glass fiber mesh cloth 23 into an adhesive layer. The main EVA plastic layer 1 is connected to the auxiliary EVA plastic layer 3 through the polymer high temperature resistant adhesive layer 21.

[0040] See also Figure 2 The adhesive layer 2 is respectively bonded to the main EVA plastic layer 1 and the auxiliary EVA plastic layer 3 through the high-molecular high-temperature resistant adhesive layer 21, so that the main EVA plastic layer 1 and the auxiliary EVA plastic layer 3 can be connected and fixed to form a double-layer structure.

[0041] See also Figure 3 The bottom of the main EVA plastic layer 1 is integrally processed with a T-shaped main clamp block 9, the top of the auxiliary EVA plastic layer 3 is integrally processed with a T-shaped auxiliary clamp block 10, the top and bottom of the adhesive layer 2 are both provided with fixed clamping grooves 11, and the T-shaped main clamp block 9 and the T-shaped auxiliary clamp block 10 are both clamped with the fixed clamping groove 11. The cooperation of the T-shaped main clamp block 9, the T-shaped auxiliary clamp block 10 and the fixed clamping groove 11 can enhance the connection strength between the main EVA plastic layer 1 and the auxiliary EVA plastic layer 3.

[0042] See also Figure 4 A metal mesh 7 is embedded in the soft silicone buffer layer 6 . The thickness of the metal mesh 7 is 0.1 mm. The metal mesh 7 is used to strengthen the strength of the soft silicone buffer layer 6 .

[0043] See also Figure 1 A waterproof layer 12 is bonded between the outer sides of the main SVT intumescent fire retardant coating 8 and the secondary SVT intumescent fire retardant coating 5. The waterproof layer 12 has a waterproof effect and can fill the gaps between the layers of materials.

[0044] The working principle of the utility model: the main EVA plastic layer 1 is connected to the secondary EVA plastic layer 3 through the adhesive layer 2 to form a double-layer waterproof structure. The phenolic fireproof board 4, the secondary SVT intumescent fireproof coating 5 and the main SVT intumescent fireproof coating 8 can form a multi-layer high temperature resistance and flame retardant performance. The soft silicone buffer layer 6 can be used for buffering. The phenolic fireproof board 4, the secondary SVT intumescent fireproof coating 5 and the main SVT intumescent fireproof coating 8 can enhance the high temperature resistance of the waterproof board and improve the flame retardant effect. The strength of the waterproof board can be enhanced by the multi-layer material of the main EVA plastic layer 1, the adhesive layer 2, the secondary EVA plastic layer 3, the phenolic fireproof board 4, the secondary SVT intumescent fireproof coating 5, the soft silicone buffer layer 6 and the main SVT intumescent fireproof coating 8. The high temperature resistance of the waterproof board can be improved through the structural setting. It is not easy to be ignited when encountering an open flame and has excellent flame retardancy. In addition, the overall strength of the waterproof board can be improved through the multi-layer structure. It is not easy to be damaged when encountering pressure, thereby ensuring the waterproof performance.

[0045] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An EVA waterproof board with strong flame retardancy, characterized in that: include Main EVA plastic layer (1); An adhesive layer (2), the adhesive layer (2) is bonded to the bottom of the main EVA plastic layer (1); A secondary EVA plastic layer (3), the secondary EVA plastic layer (3) is bonded to the bottom of the adhesive layer (2); A phenolic fireproof board (4), the phenolic fireproof board (4) is bonded to the bottom of the secondary EVA plastic layer (3); A secondary SVT intumescent fireproof coating (5), the secondary SVT intumescent fireproof coating (5) being bonded to the bottom of the phenolic fireproof board (4); A soft silicone cushioning layer (6), the soft silicone cushioning layer (6) is bonded to the top of the main EVA plastic layer (1); A main SVT intumescent fire retardant coating (8) is bonded to the top of the soft silica gel buffer layer (6).

2. The EVA waterproof board with strong flame retardancy according to claim 1, characterized in that: The adhesive layer (2) comprises a polymer high temperature resistant adhesive layer (21), a nylon mesh (22) and a glass fiber mesh cloth (23); the nylon mesh (22) is located on the top of the glass fiber mesh cloth (23); and the polymer high temperature resistant adhesive layer (21) is impregnated into the surfaces of the nylon mesh (22) and the glass fiber mesh cloth (23).

3. The EVA waterproof board with strong flame retardancy according to claim 2, characterized in that: The adhesive layer (2) is respectively bonded to the main EVA plastic layer (1) and the secondary EVA plastic layer (3) via a high molecular high temperature resistant adhesive layer (21).

4. The EVA waterproof board with strong flame retardancy according to claim 1, characterized in that: The bottom of the main EVA plastic layer (1) is integrally processed with a T-shaped main clamping block (9), the top of the secondary EVA plastic layer (3) is integrally processed with a T-shaped secondary clamping block (10), the top and bottom of the adhesive layer (2) are both provided with fixed clamping grooves (11), and the T-shaped main clamping block (9) and the T-shaped secondary clamping block (10) are both clamped with the fixed clamping grooves (11).

5. The EVA waterproof board with strong flame retardancy according to claim 1, characterized in that: A metal mesh (7) is embedded inside the soft silica gel buffer layer (6), and the thickness of the metal mesh (7) is 0.1 mm.

6. The EVA waterproof board with strong flame retardancy according to claim 1, characterized in that: A waterproof layer (12) is bonded between the outer sides of the primary SVT intumescent fire-retardant coating (8) and the secondary SVT intumescent fire-retardant coating (5).

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