Waterproof vapor-proof film for building maintenance structure

Abstract

The utility model provides a waterproof vapor-proof film for a building maintenance structure, which relates to the technical field of waterproof vapor-proof films and comprises a film body, an upper surface layer is arranged on the upper side of the film body, a lower surface layer is arranged on the lower side of the film body, a middle core layer is arranged between the upper surface layer and the lower surface layer, and the upper surface layer and the lower surface layer are identical in thickness and size. The upper surface layer and the middle core layer as well as the upper surface layer and the lower surface layer are bonded together by adopting a thermal compounding process, and the outer shapes of the upper surface layer, the middle core layer and the lower surface layer are the same. According to the utility model, a two-cloth and one-film structure is adopted, namely, two layers of non-woven fabrics and one layer of PE vapor permeable film are adopted, so that not only is the tensile strength of the vapor permeable film enhanced, but also the storage, construction and use efficiency of the product is improved; meanwhile, a thermal compounding production process is adopted between the two layers of non-woven fabrics and the PE vapor-permeable film, and the multiple layers of materials are reinforced by high-temperature hot pressing, so that bonding force is generated among the multiple layers of materials, and the waterproof vapor-permeable film is more durable.

Description

TECHNICAL FIELD

[0001] The utility model relates to waterproof vapor barrier membrane technical field, concretely relates to a waterproof vapor barrier membrane for building maintenance structure. BACKGROUND

[0002] Passive ultra-low energy consumption green building is also called "passive house", which refers to the building that provides comfortable indoor environment by adapting to climatic characteristics and natural conditions, through the maintenance structure with higher heat insulation and air tightness performance, adopting fresh air heat recovery technology, and using renewable energy. The passive house has very high air tightness requirement, and compared with the traditional building, the passive house can realize more than 95% energy saving through comprehensive use of various energy saving technologies, which has important significance for solving the problems of high energy consumption and large carbon emission in the building industry of China.

[0003] The waterproof vapor barrier membrane is an important component of the building sealing system, which can significantly improve the heat insulation and air tightness of the building, and solve the problems of energy saving and waterproofing of the building. In the current energy saving building, the waterproof vapor barrier membrane is laid on the outer wall of the building or on the upper part of the roof of the building, so as to avoid the emission of water vapor inside the building to the outside and the penetration of external rainwater into the building, and improve the energy saving performance of the building.

[0004] In the prior art (publication number CN112726844A) "a building waterproof vapor barrier membrane use method", it is mentioned that "the waterproof vapor barrier membrane further includes a plurality of second waterproof vapor barrier membranes, the plurality of first waterproof vapor barrier membranes are pasted on the treated surface along the second direction perpendicular to the first direction, the plurality of second waterproof vapor barrier membranes are continuously pasted on the interval between adjacent first waterproof vapor barrier membranes along the first direction consistent with the unwinding direction, and are overlapped on adjacent first waterproof vapor barrier membranes in the second direction", but the waterproof vapor barrier membrane in the prior art is produced by hot melt adhesive or film coating process, which is composed of two layers of non-woven fabric, lacks PE layer and does not have waterproof and vapor permeable function, and because organic glue is used in the process, the structure will be delaminated after a period of use due to the volatilization of the glue, which seriously affects the effect and service life of building construction. UTILITY MODEL CONTENTS

[0005] In order to overcome the defects of the prior art, the waterproof vapor barrier membrane for building maintenance structure is provided to solve the problem that the waterproof vapor barrier membrane in the prior art is produced by hot melt adhesive or film coating process, which is composed of two layers of non-woven fabric, lacks PE layer and does not have waterproof and vapor permeable function, and because organic glue is used in the process, the structure will be delaminated after a period of use due to the volatilization of the glue, which seriously affects the effect and service life of building construction.

[0006] In order to achieve the above object, the utility model provides a waterproof and vapor barrier membrane for building maintenance structure, the upper side of membrane body is provided with upper surface layer, and the lower side of membrane body is provided with lower surface layer, the middle core layer is arranged between the upper surface layer and the lower surface layer, and the thickness size of the upper surface layer and the lower surface layer is arranged same, the upper surface layer and the middle core layer, the upper surface layer and the lower surface layer are bonded together using hot compound process, and the external shape of the upper surface layer, the middle core layer and the lower surface layer is arranged same.

[0007] Further, the upper surface layer adopts non - woven fabric material, and is provided with the dense vapor transmission micropore of the upper surface layer.

[0008] Further, the middle core layer adopts the PE vapor transmission membrane of high molecular waterproof material.

[0009] Further, the lower surface layer adopts non - woven fabric material, and is provided with the dense vapor transmission micropore of the lower surface layer.

[0010] Further, the upper surface layer, the middle core layer and the lower surface layer constitute the structure of two cloth one membrane together, and are reinforced through high -temperature hot -pressing between the upper surface layer, the middle core layer and the lower surface layer.

[0011] Further, the upper surface layer and the lower surface layer all adopt the non - woven fabric of polypropylene fiber production, and the lower surface of the upper surface layer and the upper surface of the lower surface layer all are provided with fibrous hot melt adhesive reinforcing material.

[0012] The utility model discloses the beneficial effect lies in:

[0013] 1. The production process of the utility model is " hot compound " that is reinforced through high -temperature hot -pressing to the adhesion between multilayer materials.

[0014] 2. PE vapor transmission membrane has excellent extensibility, satisfies the demand of different purposes, and PE vapor transmission membrane has good air permeability and waterproofness, and is more durable.

[0015] 3. The utility model discloses " two cloth one membrane structure " on structure, that is two layers of non - woven fabric + a layer of PE vapor transmission membrane, and the structure uses non - woven fabric to enhance the tensile strength of vapor transmission membrane, improves the efficiency of product storage, construction and use. ACCURACY OF DRAWINGS

[0016] Fig. 1 It is the top view schematic diagram of the utility model embodiment;

[0017] Fig. 2 It is the schematic diagram of the utility model embodiment expansion;

[0018] Fig. 3 It is the schematic diagram of the utility model embodiment winding.

[0019] In the figure: 1, membrane body; 10, upper surface layer; 11, middle core layer; 12, lower surface layer. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer, the utility model is further described in detail below in combination with the drawings and examples. The specific examples described herein are only used to explain the utility model and are not used to limit the utility model. Specific details such as specific system structures and technologies are proposed so as to more thoroughly understand the utility model examples. The described examples are part of the embodiments of the disclosure, not all the embodiments. However, those skilled in the art should clearly understand that the utility model can also be implemented in other embodiments without these specific details. Based on the examples in the disclosure, all other embodiments obtained by those skilled in the art without making creative efforts are within the protection scope of the disclosure.

[0021] The specific embodiments of the utility model are described in detail below in combination with the drawings.

[0022] Fig. 1 The utility model example is a top view schematic diagram, Fig. 2 The utility model example is a schematic diagram of unfolding and Fig. 3 The utility model example is a schematic diagram of rolling up.

[0023] Referring to Figs. 1 to 3 The utility model provides a waterproof and vapor barrier membrane for building maintenance structure, including membrane body 1, the upside of membrane body 1 is provided with upper surface layer 10, and the downside of membrane body 1 is provided with lower surface layer 12, and the middle core layer 11 is arranged between upper surface layer 10 and lower surface layer 12, and the thickness size of upper surface layer 10 and lower surface layer 12 is arranged same, and upper surface layer 10 and middle core layer 11, upper surface layer 10 and lower surface layer 12 are bonded together using hot compound process, and the external shape of upper surface layer 10, middle core layer 11 and lower surface layer 12 is arranged same.

[0024] In the embodiment, upper surface layer 10 adopts non-woven fabric material, and upper surface layer 10 is provided with dense vapor transmission micropores; lower surface layer 12 adopts non-woven fabric material, and lower surface layer 12 is provided with dense vapor transmission micropores.

[0025] As a preferred embodiment, the production process of the utility model is "hot compound", that is, multiple layers of materials are reinforced by high-temperature hot pressing to generate bonding force between the multiple layers of materials.

[0026] In the embodiment, middle core layer 11 adopts PE vapor transmission membrane of high molecular waterproof material.

[0027] As a preferred embodiment, the PE vapor-permeable film has excellent extensibility to meet the requirements of different applications, and the PE vapor-permeable film has good vapor permeability and waterproofness and is more durable.

[0028] In the embodiment, the upper surface layer 10, the middle core layer 11 and the lower surface layer 12 together form a two-cloth-one-film structure, and the upper surface layer 10, the middle core layer 11 and the lower surface layer 12 are reinforced by high-temperature hot pressing; the upper surface layer 10 and the lower surface layer 12 are both made of non-woven fabric produced by polypropylene fibers, and the lower surface of the upper surface layer 10 and the upper surface of the lower surface layer 12 are both provided with fibrous hot melt adhesive reinforcing materials.

[0029] As a preferred embodiment, the utility model discloses a two-cloth-one-film structure, i.e. two layers of non-woven fabric plus one layer of PE vapor-permeable film, which enhances the tensile strength of the vapor-permeable film and improves the efficiency of product storage, construction and use.

[0030] The utility model discloses a two-cloth-one-film structure, i.e. two layers of non-woven fabric plus one layer of PE vapor-permeable film, which enhances the tensile strength of the vapor-permeable film and improves the efficiency of product storage, construction and use.

[0031] The above embodiments are used to explain and illustrate the utility model, but not to limit the utility model, and any modification and change made to the utility model within the spirit and scope of the utility model and the application protection right claim should be included in the protection scope of the utility model.

Claims

1. A waterproof vapor barrier membrane for use in building enclosures, characterized by: The application relates to a film body (1), the upper side of the film body (1) is provided with an upper surface layer (10), the lower side of the film body (1) is provided with a lower surface layer (12), a middle core layer (11) is arranged between the upper surface layer (10) and the lower surface layer (12), the thickness of the upper surface layer (10) and the lower surface layer (12) is the same, the upper surface layer (10) and the middle core layer (11) and the lower surface layer (12) are bonded together through a hot compounding process, and the external shapes of the upper surface layer (10), the middle core layer (11) and the lower surface layer (12) are the same; the upper surface layer (10), the middle core layer (11) and the lower surface layer (12) together form a two-cloth-one-film structure, and the upper surface layer (10), the middle core layer (11) and the lower surface layer (12) are reinforced through high-temperature hot pressing; the upper surface layer (10) and the lower surface layer (12) are both made of non-woven fabric produced by polypropylene fibers, and the lower surface of the upper surface layer (10) and the upper surface of the lower surface layer (12) are both provided with fibrous hot melt adhesive reinforcing materials.

2. A waterproof vapor barrier membrane for building envelope according to claim 1, characterized in that, The upper surface layer (10) is made of non-woven fabric material, and the upper surface layer (10) is provided with dense steam-permeable micropores.

3. A waterproof vapor barrier membrane for building maintenance structure according to claim 1, characterized in that, The middle core layer (11) is a PE steam-permeable film made of high-molecular waterproof material.

4. The waterproof vapor barrier membrane for building maintenance structure according to claim 1, characterized in that, The lower surface layer (12) is made of non-woven fabric material, and the lower surface layer (12) is provided with dense steam-permeable micropores.

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