CN215882855U

CN215882855U - Waterproof vapour barrier film

Info

Publication number: CN215882855U
Application number: CN202023180642.4U
Authority: CN
Inventors: 徐双平; 何晓东
Original assignee: Beijing Tengmeiqi Science & Technology Development Co ltd
Current assignee: Beijing Tengmeiqi Science & Technology Development Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2022-02-22
Anticipated expiration: 2030-12-25

Abstract

The utility model relates to a waterproof vapor barrier film, which simplifies the structure of a waterproof vapor barrier film layer, reduces the manufacturing cost and has good layer structure stability and energy-saving effect by the combination mode of a barrier layer, a structural layer and a bonding layer.

Description

Waterproof vapour barrier film

Technical Field

The present invention relates generally to the field of construction and, more particularly, to a waterproof vapor barrier membrane.

Background

The passive ultra-low energy consumption green building is also called a passive house, and refers to a building which is adaptive to climatic features and natural conditions, adopts a fresh air heat recovery technology through a maintenance structure with higher heat insulation performance and air tightness performance, and provides a comfortable indoor environment by utilizing renewable energy sources. The passive house has extremely high requirement on air tightness, and compared with the traditional building, the passive house can save more than 95% of energy by comprehensively utilizing various energy-saving technologies, and has important significance for solving the problems of high energy consumption, carbon emission amplification and the like in the building industry of China.

The waterproof steam-isolating film is an important component of a building sealing system, can obviously improve the heat-insulating air tightness of a building, and solves the problems of energy conservation and water prevention of the building. However, the existing waterproof vapor-barrier film layer has the disadvantages of complex structure, high manufacturing cost and poor energy-saving effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide the waterproof and steam-proof membrane with simple layer structure, low manufacturing cost and good energy-saving effect.

The waterproof and steam-insulating film comprises a blocking layer, a first structural layer, a second structural layer, a first bonding layer and a second bonding layer, wherein the first structural layer and the second structural layer are respectively connected to two sides of the blocking layer, the blocking layer is connected with the first structural layer through the first bonding layer, and the blocking layer is connected with the second structural layer through the second bonding layer.

The structural layers are arranged on the outer surfaces of the two sides of the waterproof vapor-barrier film, so that the mechanical performance of the whole vapor-barrier film is improved, the structural layers can be directly adhered to the surfaces of organic or inorganic glue, bonding mortar, plastering mortar and putty layers for construction, the adhesive strength is good, the core part of the vapor-barrier film is provided with the barrier layer for blocking water vapor and air, the structural layers and the barrier layer are mutually connected by the bonding layer, the stability of the structure of the whole layer of the waterproof vapor-barrier film is ensured, the structure of the waterproof vapor-barrier film is simplified through the combination mode of the barrier layer, the structural layers and the bonding layer, the manufacturing cost is reduced, and the waterproof vapor-barrier film has good layer structure stability and energy-saving effect.

Further, the waterproof and vapor-barrier film of the present invention comprises an aluminum foil as the barrier layer. The waterproof and steam-proof performance of the membrane body is improved by utilizing the strong water vapor and air blocking capacity of the aluminum foil.

Furthermore, the barrier layer of the waterproof vapor barrier film of the utility model further comprises a polymer plastic film, and the polymer plastic film is compounded on the surface of the aluminum foil. The high molecular plastic film is compounded on the surface of the aluminum foil, so that the defect of low mechanical strength of the aluminum foil is overcome, the weather resistance of the waterproof vapor barrier film is improved, and the reduction of the barrier property of the aluminum foil is avoided.

Further, according to the waterproof and steam-proof film disclosed by the utility model, the polymer plastic film is compounded on the surface of the aluminum foil for corona treatment. Before the polymer plastic film and the aluminum foil are compounded, the surface of the polymer plastic film is subjected to corona treatment, so that the surface roughness of the polymer plastic film is improved, and the compound strength of the polymer plastic film and the aluminum foil can be improved.

Further, according to the waterproof and steam-proof membrane, the polymer plastic film is compounded on the surface of the aluminum foil in a vacuum pressing mode. The aluminum foil and the polymer plastic film are pressed in the vacuum chamber, so that air residue is reduced, and the composite strength of the polymer plastic film and the aluminum foil can be improved.

Furthermore, the high polymer plastic films comprise a first high polymer plastic film and a second high polymer plastic film, and the first high polymer plastic film and the second high polymer plastic film are respectively compounded on the two surfaces of the aluminum foil. The polymer plastic films are compounded on the surfaces of the two sides of the aluminum foil, so that the mechanical strength of the surfaces of the two sides of the aluminum foil is balanced, and the surfaces of the two sides of the film body have the same waterproof and steam-proof performance.

Further, the waterproof and vapor-proof film of the utility model is characterized in that the polymer plastic film is selected from one or more materials of PE, PET and nylon. PE, PET and nylon are selected to make up for the mechanical property defect of the aluminum foil and ensure the waterproof and steam-proof performance of the waterproof and steam-proof film.

Further, according to the waterproof and steam-proof membrane, the first bonding layer and/or the second bonding layer are/is two-component polyurethane glue or epoxy resin glue. The double-component polyurethane adhesive or epoxy resin adhesive is used for improving the connection strength between the structural layer and the barrier layer.

Further, in the waterproof and vapor-barrier film of the present invention, the first structural layer and/or the second structural layer is/are a polymer nonwoven fabric, a polymer fiber mat or a glass fiber cloth. The high-molecular non-woven fabric, the high-molecular fiber thin felt or the glass fiber cloth is used as a structural layer material, so that the overall mechanical property of the waterproof vapor barrier film is improved.

Through the technical scheme, the utility model can realize the following effects:

the utility model simplifies the structure of the waterproof and steam-proof film layer, reduces the manufacturing cost, and has good stability of the layer structure and energy-saving effect by the combination mode of the barrier layer, the structural layer and the combined layer.

Drawings

The above and other objects, features and advantages of embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the utility model are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which:

fig. 1 is a schematic view of the layer structure of the waterproof vapor-barrier film of the present invention.

In the drawings, like or corresponding reference numerals designate like or corresponding parts throughout the several views:

11-a first structural layer, 12-a second structural layer, 21-a first bonding layer, 22-a second bonding layer, 3-a barrier layer, 31-an aluminum foil, 32-a first polymer plastic film, 33-a second polymer plastic film.

Detailed Description

The principles and spirit of the present invention will be described with reference to a number of exemplary embodiments. It is understood that these embodiments are given solely for the purpose of enabling those skilled in the art to better understand and to practice the utility model, and are not intended to limit the scope of the utility model in any way.

It should be noted that although the terms "first", "second", etc. are used in the present invention to describe various components of the embodiments of the present invention, the terms "first", "second", etc. are merely used to distinguish between the various components, and do not indicate a particular order or degree of importance. Indeed, the terms "first," "second," and the like are fully interchangeable.

In the embodiment of the present invention, as shown in fig. 1, the waterproof and vapor-proof film includes a barrier layer 3, a first structural layer 11, a second structural layer 12, a first bonding layer 21 and a second bonding layer 22, the first structural layer 11 and the second structural layer 12 are respectively connected to two sides of the barrier layer 3, the barrier layer 3 and the first structural layer 11 are connected by the first bonding layer 21, and the barrier layer 3 and the second structural layer 12 are connected by the second bonding layer 22. In the waterproof vapor-barrier film layer structure of the utility model, the barrier layer 3 is used for blocking water vapor and air, in the embodiment, the aluminum foil 31 is selected as the core material of the barrier layer 3, the aluminum foil has high barrier property to water and water vapor and is not influenced by environment and temperature, the aluminum foil 31 is selected to well prevent indoor water vapor from being emitted outdoors, meanwhile, water is prevented from permeating indoors from outdoors, and the waterproof vapor-barrier performance of the waterproof vapor-barrier film is improved.

In the embodiment of the present invention, the barrier layer 3 further includes a first polymer plastic film 32 and a second polymer plastic film 33 which are compounded on both side surfaces of the aluminum foil 31. The aluminum foil is light in weight and good in ductility, but is low in strength and easy to tear, and is easy to break when folded, so that the barrier property of the aluminum foil is reduced.

Therefore, the surface of the aluminum foil is compounded with the polymer plastic film, such as PE, PET and nylon materials, and the polymer plastic film has waterproof and steam-proof performance, simultaneously plays a role in supporting the aluminum foil 31, makes up for the defect of insufficient mechanical performance of the aluminum foil 31, improves the weather resistance of the waterproof and steam-proof film, and ensures the waterproof and steam-proof performance of the waterproof and steam-proof film.

In the waterproof steam-isolating membrane layer structure, the structural layer is used for improving the mechanical properties of the whole steam-isolating membrane, such as tensile strength, friction resistance and puncture resistance, and the steam-isolating membrane is protected to keep consistency in the construction and use processes; the other important function is convenient construction, the bonding strength of the steam-isolating film and organic or inorganic glue, bonding mortar, plastering mortar, putty layers and the like for buildings can be improved, and the stability of the system is improved.

In the waterproof vapor barrier film layer structure, the bonding layer is used for connecting the structural layer and the barrier layer, and the two-component polyurethane adhesive, the epoxy resin adhesive and other materials are selected in the embodiment, so that the stable connection of all layers of the waterproof vapor barrier film can be quickly, conveniently and stably realized.

Before the aluminum foil 31 is compounded with the first polymer plastic film 32 and the second polymer plastic film 33, the surface of the polymer plastic film is subjected to corona treatment in advance to enable the surface of the polymer plastic film to have a detailed structure, so that the surface bonding force between the polymer plastic film and the aluminum foil is improved. Furthermore, the polymer plastic film and the aluminum foil are subjected to a laminating process in the vacuum chamber, air inclusion between the film layers is avoided to the maximum extent, and the bonding strength of the polymer plastic film and the aluminum foil is improved.

The waterproof vapor-barrier film has the advantages that the structure of the waterproof vapor-barrier film layer is simplified, the manufacturing cost is reduced, and the waterproof vapor-barrier film has good stability of the layer structure and energy-saving effect by the combination mode of the barrier layer, the structural layer and the bonding layer. Meanwhile, the waterproof vapor-barrier membrane can be made into a coiled material, and after uncoiling at a construction site, the structural layer of any surface is directly adhered to the positions of an outer wall, an inner wall, a roof and the like of a building, so that the construction of the waterproof vapor-barrier membrane is quickly and conveniently completed, and the waterproof vapor-barrier membrane is convenient to use.

It is not intended to be exhaustive or to limit the utility model to the precise form disclosed, and modifications and variations are possible in light of the above teachings or may be acquired from practice of the utility model. The embodiments were chosen and described in order to explain the principles of the utility model and its practical application to enable one skilled in the art to utilize the utility model in various embodiments and with various modifications as are suited to the particular use contemplated.

Claims

1. A waterproof vapor barrier film is characterized in that: including barrier layer (3), first structural layer (11), second structural layer (12), first bonding layer (21) and second anchor coat (22), barrier layer (3) both sides are connected with first structural layer (11) and second structural layer (12) respectively, barrier layer (3) are connected through first anchor coat (21) with first structural layer (11), barrier layer (3) are connected through second anchor coat (22) with second structural layer (12).

2. The waterproof vapor barrier membrane of claim 1, wherein: the barrier layer (3) comprises an aluminium foil (31).

3. The waterproof vapor barrier membrane of claim 2, wherein: the barrier layer (3) further comprises polymer plastic films (32, 33), and the polymer plastic films (32, 33) are compounded on the surface of the aluminum foil (31).

4. The waterproof vapor barrier membrane of claim 3, wherein: the polymer plastic films (32, 33) are compounded on the surface of the aluminum foil (31) for corona treatment.

5. The waterproof vapor barrier membrane of claim 3, wherein: the polymer plastic films (32, 33) are compounded on the surface of the aluminum foil (31) in a vacuum pressing mode.

6. The waterproof vapor barrier membrane of claim 3, wherein: the polymer plastic films (32, 33) comprise a first polymer plastic film (32) and a second polymer plastic film (33), and the first polymer plastic film (32) and the second polymer plastic film (33) are respectively compounded on two surfaces of the aluminum foil (31).

7. The waterproof vapor barrier membrane of claim 3, wherein: the polymer plastic films (32, 33) are selected from one of PE, PET and nylon.

8. The waterproof vapor barrier membrane of claim 1, wherein: the first bonding layer (21) and/or the second bonding layer (22) are two-component polyurethane glue or epoxy resin glue.

9. The waterproof vapor barrier membrane of claim 1, wherein: the first structural layer (11) and/or the second structural layer (12) are/is polymer non-woven fabric, polymer fiber thin felt or glass fiber cloth.