Waterproof breathable film for building

Abstract

The utility model provides a waterproof breathable film for buildings, which comprises a waterproof breathable layer, the lower surface of the waterproof breathable layer is fixedly connected with an inner reinforcing layer, the upper surface of the waterproof breathable layer is fixedly connected with a protective layer, the upper surface of the protective layer is fixedly connected with an outer reinforcing layer, and the outer reinforcing layer is formed by compounding a reinforcing layer and a flame-retardant layer. And the inner reinforcing layer consists of a wear-resistant layer and reinforcing ribs. According to the waterproof breathable film, the outer reinforcing layer, the protective layer, the waterproof breathable layer and the inner reinforcing layer are matched, so that the wear resistance and the weather resistance of the waterproof breathable film can be effectively enhanced, and meanwhile, the overall anti-tearing effect of the waterproof breathable film can be enhanced in an auxiliary manner.

Description

TECHNICAL FIELD

[0001] The utility model relates to building material technical field, concretely relates to a waterproof and breathable membrane for building. BACKGROUND

[0002] The waterproof and breathable membrane is mainly applied to steel structure and wood structure building in the field of building, and water particles are very small in the state of water vapor, according to the principle of capillary motion, can penetrate to the other side of capillary, thereby the vapor transmission phenomenon occurs, when water vapor condenses into water droplets, the particle becomes big, due to the surface tension of water droplets, water molecules cannot penetrate to the other side of water droplets smoothly, that is, the water penetration is prevented, so that the waterproof and breathable membrane has the function of waterproofing, the existing waterproof and breathable membrane is mainly composed of three layers: PP spun-bonded non-woven fabric, PE polymer breathable membrane and PP spun-bonded non-woven fabric, but the conventional waterproof and breathable membrane is insufficient in tensile strength, and is subject to external pulling and extension deformation, the internal structure is easy to tear, which leads to the failure of the function of the waterproof and breathable membrane, and the material in the conventional waterproof and breathable membrane is flammable when exposed to open flame, which not only forms a safety hazard, but also increases the difficulty of extinguishing the fire, meanwhile, the PE waterproof and breathable membrane has poor weather resistance and is easily affected by ultraviolet rays, which leads to aging deformation, cracking and other problems, thereby shortening the service life of the waterproof and breathable membrane. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the defects of the prior art, the waterproof and breathable membrane for building is provided to solve the problems in the background art.

[0004] In order to achieve the above-mentioned purpose, the waterproof and breathable membrane for building is provided, which comprises: a waterproof and breathable layer, the lower surface of the waterproof and breathable layer is fixedly connected with an inner reinforcing layer, the upper surface of the waterproof and breathable layer is fixedly connected with a protective layer, the upper surface of the protective layer is fixedly connected with an outer reinforcing layer, the outer reinforcing layer is composed of a reinforcing layer and a flame-retardant layer, and the inner reinforcing layer is composed of a wear-resistant layer and a reinforcing rib.

[0005] Preferably, the outer reinforcing layer is composed of two groups of reinforcing layers and one group of flame-retardant layers, the upper and lower surfaces of the flame-retardant layer are fixedly connected with one group of reinforcing layers respectively, and the reinforcing layers and the flame-retardant layer are fixedly connected by hot pressing process.

[0006] Preferably, the reinforcing layer is made of glass fiber mesh cloth material, the flame-retardant layer is made of flame-retardant non-woven fabric material, and the thickness of the reinforcing layer is equal to that of the flame-retardant layer.

[0007] Preferably, the inner reinforcing layer is composed of two groups of wear-resistant layers and multiple groups of reinforcing ribs, the multiple groups of reinforcing ribs are laid along the length direction of the wear-resistant layer in parallel and at equal intervals, the thickness of the wear-resistant layer is greater than the diameter of the reinforcing rib, and the wear-resistant layer and the reinforcing rib are fixedly connected by hot pressing process.

[0008] Preferably, the wear-resistant layer adopts a non-woven fabric material, the reinforcing ribs distributed at equal intervals between the two groups of non-woven fabrics are in a cylindrical structure, and a plurality of buffer grooves are opened at the outer side of the reinforcing ribs in parallel along the axial direction at equal intervals, the buffer grooves are in a circular ring structure, and the axial section of the reinforcing rib is in a string-shaped structure.

[0009] Preferably, the reinforcing rib is fixedly connected with a plurality of fixed lines in parallel along the axial direction at equal intervals, the fixed lines and the reinforcing rib are perpendicular to each other, and the fixed lines and the reinforcing rib are combined together to form a cross-shaped structure, and the fixed lines and the reinforcing rib are in an integral molding structure.

[0010] Preferably, the protective layer adopts a PVC film, and the protective layer is fixedly connected with the outer reinforcing layer and the waterproof and breathable layer through a hot pressing process.

[0011] Compared with the prior art, the utility model has the advantages that through the cooperation of the wear-resistant layer, the reinforcing rib and the fixed line, the tensile strength of the inner reinforcing layer can be effectively enhanced, the probability of tearing of the waterproof and breathable film due to external pulling can be reduced, the setting of the protective layer can effectively enhance the ultraviolet resistance effect of the waterproof and breathable film as a whole, the probability of problems of the waterproof and breathable layer can be reduced, through the cooperation of the reinforcing layer and the flame-retardant layer, the flame-retardant effect of the outer surface of the waterproof and breathable layer can be effectively enhanced, the probability of burning of the waterproof and breathable film when encountering an open flame can be effectively reduced, and the safety during use is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a whole structure schematic view of the utility model embodiment.

[0013] Figure 2 It is an outer reinforcing layer structure schematic view of the utility model embodiment.

[0014] Figure 3 It is an inner reinforcing layer structure schematic view of the utility model embodiment.

[0015] Figure 4 It is an inner reinforcing layer overhead schematic view of the utility model embodiment.

[0016] In the drawing: 1, outer reinforcing layer; 2, protective layer; 3, waterproof and breathable layer; 4, inner reinforcing layer; 5, reinforcing layer; 6, flame-retardant layer; 7, wear-resistant layer; 8, reinforcing rib; 9, fixed line. DETAILED DESCRIPTION

[0017] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiment is only a part of the embodiment of the utility model, and is not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of the utility model protection.

[0018] Referring to Figures 1 to 4 The utility model provides a waterproof and breathable membrane for building, include: waterproof and breathable layer 3, waterproof and breathable layer 3 lower surface fixed connection inner reinforcing layer 4, and waterproof and breathable layer 3 upper surface fixed connection protective layer 2, and protective layer 2 upper surface fixed connection outer reinforcing layer 1, simultaneously outer reinforcing layer 1 is by reinforcing layer 5 and fire -retardant layer 6 composite constitutes, and inner reinforcing layer 4 is by wear -resisting layer 7 and reinforcing rib 8 composition.

[0019] In this embodiment, the reinforcing layer 5 and the fire -retardant layer 6 in the outer reinforcing layer 1 can effectively enhance the wear -resisting effect and the fire -retardant effect of the outer side of the waterproof and breathable membrane, thereby reducing the probability of the waterproof and breathable membrane burning in the open fire, and enhancing the safety of the waterproof and breathable membrane during use. The PVC film used in the protective layer 2 can effectively enhance the anti -ultraviolet effect of the waterproof and breathable membrane, thereby reducing the probability of the waterproof and breathable layer 3 aging, deforming and cracking due to ultraviolet radiation, and ensuring the service life of the waterproof and breathable membrane. At the same time, the wear -resisting layer 7, the reinforcing rib 8 and the fixed wire 9 in the inner reinforcing layer 4 can effectively enhance the tensile strength of the whole waterproof and breathable membrane, thereby effectively reducing the probability of the waterproof and breathable membrane tearing.

[0020] As a preferred embodiment, the outer reinforcing layer 1 is composed of two groups of reinforcing layers 5 and one group of fire -retardant layers 6, and the upper and lower surfaces of the fire -retardant layer 6 are fixedly connected with one group of reinforcing layers 5 respectively, and the reinforcing layer 5 and the fire -retardant layer 6 are fixedly connected by hot pressing process.

[0021] In this embodiment, as shown in Figure 1 and Figure 2 The reinforcing layer 5 and the fire -retardant layer 6 in the outer reinforcing layer 1 are fixedly connected by hot pressing process, so that the adhesive force between them can be generated, thereby effectively enhancing the fixing effect between them.

[0022] As a preferred embodiment, the reinforcing layer 5 is made of glass fiber mesh cloth material, and the fire -retardant layer 6 is made of fire -retardant non -woven fabric material, and the thickness of the reinforcing layer 5 and the fire -retardant layer 6 is equal.

[0023] In this embodiment, as shown in Figure 1 and Figure 2 The setting of the reinforcing layer 5 and the fire -retardant layer 6 can not only enhance the fire -retardant effect of the outer side of the waterproof and breathable layer 3, but also effectively enhance the wear resistance and corrosion resistance.

[0024] As a preferable implementation form, the inner reinforcing layer 4 is composed of two groups of wear-resistant layers 7 and a plurality of groups of reinforcing ribs 8, and the plurality of groups of reinforcing ribs 8 are laid along the length direction of the wear-resistant layer 7 in parallel and at equal intervals, and the thickness of the wear-resistant layer 7 is greater than the diameter of the reinforcing rib 8, and the wear-resistant layer 7 and the reinforcing rib 8 are fixedly connected by a hot pressing process.

[0025] In the embodiment, as shown in Figure 3 and Figure 4 , the arrangement of the reinforcing rib 8 can effectively enhance the tensile strength of the inner reinforcing layer 4, thereby effectively reducing the probability of the waterproof and breathable film being greatly deformed due to external traction, and further effectively enhancing the tear resistance of the internal structure of the waterproof and breathable film.

[0026] As a preferable implementation form, the wear-resistant layer 7 is made of non-woven fabric material, and the reinforcing rib 8 distributed at equal intervals between the two groups of non-woven fabrics is in a cylindrical structure, and a plurality of buffer grooves are arranged on the outer side of the reinforcing rib 8 in parallel and at equal intervals along the axial direction, the buffer grooves are in a circular ring structure, and the axial cross section of the reinforcing rib 8 is in a string-shaped structure.

[0027] In the embodiment, as shown in Figure 3 and Figure 4 , the arrangement of the buffer groove can effectively enhance the bendability of the reinforcing rib 8, thereby effectively ensuring the bendability of the whole waterproof and breathable film.

[0028] As a preferable implementation form, the reinforcing rib 8 is fixedly connected to a plurality of groups of fixed lines 9 in parallel and at equal intervals along the axial direction, and the fixed line 9 and the reinforcing rib 8 are perpendicular to each other, and the fixed line 9 and the reinforcing rib 8 are combined together to form a cross-shaped structure, and the fixed line 9 and the reinforcing rib 8 are in an integral molding structure.

[0029] In the embodiment, as shown in Figure 3 and Figure 4 , the arrangement of the fixed line 9 enables the plurality of groups of reinforcing ribs 8 to be connected to each other, thereby improving the efficiency of laying the reinforcing rib 8 on the surface of the wear-resistant layer 7 and ensuring the uniformity of the distribution of the reinforcing rib 8 during laying.

[0030] As a preferable implementation form, the protective layer 2 is made of PVC film, and the protective layer 2 is fixedly connected to the outer reinforcing layer 1 and the waterproof and breathable layer 3 by a hot pressing process.

[0031] In the embodiment, as shown in Figure 1 , the arrangement of the protective layer 2 can effectively enhance the ultraviolet protection structure of the outer side of the waterproof and breathable film, thereby effectively reducing the ultraviolet radiation of the waterproof and breathable film, further effectively reducing the probability of the waterproof and breathable film being aged and deformed and cracking, and ensuring the service life of the waterproof and breathable film.

[0032] The waterproof and breathable film for building can effectively enhance the wear resistance and weather resistance of the waterproof and breathable film, and can also assist in enhancing the tear resistance of the waterproof and breathable film as a whole, so that the fault tolerance of workers when laying the waterproof and breathable film is improved, and the efficiency of workers when laying is improved.

[0033] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A building waterproof and breathable membrane comprising: The waterproof and breathable layer (3) is characterized in that the lower surface of the waterproof and breathable layer (3) is fixedly connected with the inner reinforcing layer (4), the upper surface of the waterproof and breathable layer (3) is fixedly connected with the protective layer (2), the upper surface of the protective layer (2) is fixedly connected with the outer reinforcing layer (1), the outer reinforcing layer (1) is composed of the reinforcing layer (5) and the flame-retardant layer (6), and the inner reinforcing layer (4) is composed of the wear-resistant layer (7) and the reinforcing rib (8).

2. A waterproof and breathable film for building according to claim 1, characterized in that, The outer reinforcing layer (1) is composed of two groups of reinforcing layers (5) and one group of flame-retardant layers (6), the upper and lower surfaces of the flame-retardant layer (6) are fixedly connected with one group of reinforcing layers (5) respectively, and the reinforcing layer (5) and the flame-retardant layer (6) are fixedly connected by hot pressing process.

3. The waterproof and breathable film for building according to claim 1, wherein The reinforcing layer (5) is made of glass fiber mesh cloth material, the flame-retardant layer (6) is made of flame-retardant non-woven fabric material, and the thicknesses of the reinforcing layer (5) and the flame-retardant layer (6) are equal.

4. The waterproof and breathable film according to claim 1, wherein The inner reinforcing layer (4) is composed of two groups of wear-resistant layers (7) and multiple groups of reinforcing ribs (8), the multiple groups of reinforcing ribs (8) are laid along the length direction of the wear-resistant layer (7) in parallel and at equal intervals, the thickness of the wear-resistant layer (7) is greater than the diameter of the reinforcing rib (8), and the wear-resistant layer (7) and the reinforcing rib (8) are fixedly connected by hot pressing process.

5. The waterproof and breathable film according to claim 1, wherein The wear-resistant layer (7) is made of non-woven fabric material, the reinforcing rib (8) distributed between the two groups of non-woven fabrics at equal intervals has a cylindrical structure, the outer side of the reinforcing rib (8) is provided with multiple groups of buffer grooves in parallel and at equal intervals along the axial direction, the buffer grooves have a circular ring structure, and the axial section of the reinforcing rib (8) has a string-shaped structure.

6. A waterproof and breathable film for building applications according to claim 1, wherein The reinforcing rib (8) is fixedly connected with multiple groups of fixed lines (9) in parallel and at equal intervals along the axial direction, the fixed line (9) and the reinforcing rib (8) are perpendicular to each other, the fixed line (9) and the reinforcing rib (8) are combined together to form a cross-shaped structure, and the fixed line (9) and the reinforcing rib (8) are an integral molded structure.

7. A waterproof and breathable film for building applications according to claim 1, wherein The protective layer (2) is made of PVC film, and the protective layer (2) is fixedly connected with the outer reinforcing layer (1) and the waterproof and breathable layer (3) by hot pressing process.

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