Special super-weather-resistant and corrosion-resistant waterproof multi-layer composite film for PVF (Polyvinyl Fluoride) fluorocarbon wall body

Abstract

The utility model discloses a special super-weather-resistant and corrosion-resistant waterproof multi-layer composite film for a PVF fluorocarbon wall. The special super-weather-resistant and corrosion-resistant waterproof multi-layer composite film comprises a PVF single-layer film layer, an adhesive layer, a hydrolysis-resistant POE film layer, a butyl rubber layer and a PE release film layer, the hydrolysis-resistant POE film layer is arranged between the PVF single-layer film layer and the PE release film layer; the double-component glue layer is arranged between the PVF single-layer film layer and the hydrolysis-resistant POE film layer; the butyl rubber layer is arranged between the hydrolysis-resistant POE film layer and the PE release film layer. On the premise of achieving water resistance and corrosion resistance of the wall body, the weather resistance is greatly improved, the production efficiency is improved, and the production energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of building decoration materials, and particularly relates to a PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special waterproof multilayer composite film. BACKGROUND

[0002] With the rapid development of modern society, people's living quality requirements are getting higher and higher. In the field of residential housing, the existing technology adopts paint spraying and non-fluorine-containing material polymer film to realize the waterproof and corrosion resistance of building walls. The existing problems of this technical scheme are poor weather resistance, and it cannot meet the 20-30 year weather resistance requirement of the process. The main reason is that the spraying method has solvent in the final product, and the solvent will slowly migrate out of the product over time, which will lead to product discontinuity, voids and gaps, resulting in poor weather resistance of the product. The non-fluorine-containing material polymer film cannot meet the 20-30 year weather resistance requirement of the terminal market because of the poor weather resistance of the material itself. Therefore, how to develop a new type of wall film layer material to meet people's living needs is the direction that the technical personnel in the field need to study. SUMMARY

[0003] Based on the defects of the existing technology, the first purpose of the utility model is to provide a PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special waterproof multilayer composite film, which can greatly improve the weather resistance and production efficiency and reduce the production energy consumption under the premise of realizing the waterproof and corrosion resistance of the wall.

[0004] The purpose of the utility model is realized by the following technical scheme:

[0005] A PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special waterproof multilayer composite film, the wall super-weather-resistant and corrosion-resistant special waterproof multilayer composite film comprises five sub-composite layers, which are a PVF single-layer film layer, an adhesive layer, a hydrolysis-resistant POE film layer, a butyl adhesive layer and a PE release film layer in sequence.

[0006] The hydrolysis-resistant POE film layer is arranged between the PVF single-layer film layer and the PE release film layer.

[0007] The adhesive layer is arranged between the PVF single-layer film layer and the hydrolysis-resistant POE film layer.

[0008] The butyl adhesive layer is arranged between the hydrolysis-resistant POE film layer and the PE release film layer.

[0009] Preferably, the adhesive layer is preferably a two-component adhesive layer.

[0010] Preferably, the thickness of the PVF single-layer film layer is 10-100 um.

[0011] Preferably, the thickness of the butyl adhesive layer is 15-200 um.

[0012] Preferably, the thickness of the two-component glue layer is 5-50um.

[0013] Preferably, the thickness of the hydrolysis-resistant POE film layer is 10-350um.

[0014] Compared with the related art, the wall waterproof and corrosion-resistant composite film has the following beneficial effects:

[0015] By adopting the technical scheme, the PVF single-layer film layer is arranged at the outermost layer, plays the role of air and ultraviolet isolation, realizes the weather-proof protection of the whole product, the two-component glue is adopted to realize the adhesion of the PVF single-layer film layer and the hydrolysis-resistant POE film layer, the hydrolysis-resistant POE film layer is adopted to improve the overall hardness of the product and make it easy to process, the butyl glue is used as the adhesive layer, can be well bonded with the POE, the PE release paper mainly plays the role of easy winding, and the PE release film can be well peeled off the butyl glue in the use process, and the composite film is directly attached to the building material. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] 1, PVF single-layer film layer; 2, adhesive layer; 3, hydrolysis-resistant POE film layer; 4, butyl glue layer; 5, PE release film layer. DETAILED DESCRIPTION

[0018] The utility model discloses a PVF fluorocarbon wall super weather-proof corrosion-resistant special waterproof multilayer composite film, wall super weather-proof corrosion-resistant special waterproof multilayer composite film includes 5 sub composite layers, and is PVF single-layer film layer 1, adhesive layer 2, hydrolysis-resistant POE film layer 3, butyl glue layer 4 and PE release film layer 5 in proper order;

[0019] The hydrolysis-resistant POE film layer 3 is arranged between the PVF single-layer film layer 1 and the PE release film layer 5.

[0020] The adhesive layer 2 is arranged between the PVF single-layer film layer 1 and the hydrolysis-resistant POE film layer 3.

[0021] The butyl glue layer 4 is arranged between the hydrolysis-resistant POE film layer 3 and the PE release film layer 5.

[0022] PVF single layer film layer 1 has excellent weather resistance, PVF film has significantly improved resistance and durability to sunlight, chemical solvents, acid and alkali corrosion, moisture and oxidation, has high strength and high ductility, PVF film will stretch in the horizontal and vertical directions during production and processing, forming a molecular lattice, greatly improving its physical properties. Its wear resistance, moisture penetration resistance and ductility can be improved by one time, PVF film does not contain plasticizer, therefore it has excellent anti-aging performance and maintains flexibility and bending within a wide temperature range;

[0023] PVF single layer film layer 1 is placed in the outermost layer, which plays a role in isolating air and ultraviolet, and realizes weather protection of the whole product.

[0024] Hydrolysis-resistant POE film layer 3 can maintain excellent performance in humid or water environment, prolong the service life of the product, and improve the overall hardness of the product; the adhesive layer 2 is preferably a two-component adhesive layer, which realizes the adhesion of the PVF single layer film layer and the hydrolysis-resistant POE film layer by using two-component adhesive, and the butyl adhesive can be well bonded with POE, and the PE release paper mainly plays the role of easy winding, and the PE release film can be well peeled off from the butyl adhesive during use, and the composite film is directly attached to the building material.

[0025] The technical scheme of the utility model patent will be further specifically described below by means of examples and in combination with the drawings.

[0026] Example 1:

[0027] A PVF fluorocarbon wall body super-weather-resistant and corrosion-resistant special waterproof multilayer composite film, comprising: a PVF single layer film layer 1, a two-component adhesive layer 2, a hydrolysis-resistant POE film layer 3, a butyl adhesive layer 4 and a PE release film layer 5; the hydrolysis-resistant POE film layer 3 is arranged between the PVF single layer film layer 1 and the PE release film layer 5; the two-component adhesive layer 2 is arranged between the PVF single layer film layer 1 and the hydrolysis-resistant POE film layer 3; the butyl adhesive layer 4 is arranged between the hydrolysis-resistant POE film layer 3 and the PE release film layer 5. The thickness of the PVF single layer film layer 1 is 10 um. The thickness of the butyl adhesive layer 4 is 15 um. The thickness of the two-component adhesive layer 2 is 5 um. The thickness of the hydrolysis-resistant POE film layer 3 is 10 um.

[0028] Example 2:

[0029] Example 2 has the same structure as example 1, and the difference between example 2 and example 1 is that in this example: the thickness of the PVF single layer film layer 1 is 100 um. The thickness of the butyl adhesive layer 4 is 200 um. The thickness of the two-component adhesive layer 2 is 50 um. The thickness of the hydrolysis-resistant POE film layer 3 is 350 um.

[0030] Example 3:

[0031] Example 3 has the same structure as Example 1, and the difference between Example 3 and Example 1 is that in this example: the thickness of the PVF single-layer film layer 1 is 60um. The thickness of the butyl rubber layer 4 is 100um. The thickness of the two-component adhesive layer 2 is 30um. The thickness of the hydrolysis-resistant POE film layer 3 is 180um.

[0032] When the thickness of the PVF single-layer film layer is less than 10um, it cannot well block ultraviolet, and when it is too thick, it will cause a substantial increase in cost. When the butyl rubber is too thin, it will be difficult to adhere to the base material. It has been detected that the thickness of the product structure should be more than 10um to stably ensure the adhesion and long-term use. When it is too thick, it will increase the weight of the composite film, causing the product to flow and sag naturally, and lose the protection effect. The thickness of the two-component adhesive determines the adhesion, but when the thickness exceeds 50um, the drying of the solvent during the coating process and the later curing will be affected. When the thickness of the hydrolysis-resistant POE film layer is less than 10um, it will cause the product to be not hard enough, increasing the difficulty of subsequent butyl rubber coating, and when the thickness is greater than 350um, it will cause the product to be too hard, making it difficult to flatten the composite film.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any changes or replacements that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered within the protection scope of the present application. The protection scope of the present application is subject to the protection scope of the claims.

Claims

1. A PVF fluorocarbon wall body super-weather-resistant corrosion-resistant special-purpose waterproof multi-layer composite film, characterized in that, The wall body super-weather-resistant and corrosion-resistant special waterproof multilayer composite film comprises five sub-composite layers, which are PVF single-layer film layer (1), adhesive layer (2), hydrolysis-resistant POE film layer (3), butyl adhesive layer (4) and PE release film layer (5) in sequence. The hydrolysis-resistant POE film layer (3) is arranged between the PVF single-layer film layer (1) and the PE release film layer (5). The adhesive layer (2) is arranged between the PVF single-layer film layer (1) and the hydrolysis-resistant POE film layer (3). The butyl adhesive layer (4) is arranged between the hydrolysis-resistant POE film layer (3) and the PE release film layer (5).

2. The PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special-purpose waterproof multi-layer composite film according to claim 1, characterized in that: The adhesive layer (2) is preferably a two-component glue layer.

3. The PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special-purpose waterproof multi-layer composite film according to claim 1, characterized in that: The thickness of the PVF single-layer film layer (1) is 10-100 um.

4. The PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special-purpose waterproof multi-layer composite film according to claim 1, characterized in that: The thickness of the butyl adhesive layer (4) is 15-200 um.

5. The PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special-purpose waterproof multi-layer composite film according to claim 1, characterized in that: The thickness of the adhesive layer (2) is 5-50 um.

6. The PVF fluorocarbon wall super-weather-resistant and corrosion-resistant special-purpose waterproof multi-layer composite film according to claim 1, characterized in that: The thickness of the hydrolysis-resistant POE film layer (3) is 10-350 um.

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