Single-air-permeability polymeric membrane for plate surface layer

Abstract

The invention discloses a single-air-permeability polymeric membrane for a plate surface layer, which comprises polymeric membranes, and a protective layer and a bonding base layer which are respectively arranged on two sides of the polymeric membranes, a decorative coating is connected between the bonding base layer and the protective layer, the number of the polymeric membranes is two, and a composite fiber reinforced layer is compounded between the two polymeric membranes. The polymeric membrane is a membrane doped with inorganic nanoparticles, and the inorganic nanoparticles are any one or a combination of more of SiO2, ZnO and TiO2. Compared with the prior art, the single-air-permeability polymeric membrane for the board surface layer has the advantages of being convenient to use, high in functionality and capable of meeting different use requirements.

Description

Technical Field

[0001] The invention relates to the technical field of polymer films, in particular to a single air-permeable polymer film for a board surface layer. Background Art

[0002] Polymer membrane is a thin film made of organic polymer. With the development of petroleum industry and science and technology, the application field of polymer membrane is expanding, from the initial packaging membrane to intelligent polymer membrane, polymer functional membrane, etc. Among them, the most widely used is the selective separation membrane, such as ion exchange membrane, microporous filtration membrane, ultrafiltration membrane, liquid membrane, liquid crystal membrane, etc.

[0003] Among them, waterproof and breathable membranes are used in various fields in my country, so there are higher demands for their mechanical properties, lifespan and other performances. However, it is difficult for existing film products to simultaneously possess the physical properties and mechanical properties of high strength, waterproofness and breathability. Therefore, it is urgent to design a single breathable polymer membrane for the board surface layer. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above technical defects and provide a single air-permeable polymer film for a board surface layer which is convenient to use, highly functional and meets different usage requirements.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is: a single breathable polymer film for a board surface layer, comprising a polymer film and a protective layer and an adhesive base layer respectively arranged on both sides of the polymer film, and a decorative coating is connected between the adhesive base layer and the protective layer.

[0006] Preferably, the bonding base layer is made of fabric, the fabric includes warp yarns and weft yarns, the warp yarns and weft yarns are arranged perpendicular to each other, and the diameters of the warp yarns and weft yarns are less than 0.3 mm.

[0007] Preferably, the polymer film is a film doped with inorganic nanoparticles, and the inorganic nanoparticles are any one or more combinations of SiO2, ZnO, and TiO2.

[0008] Preferably, the protective layer is a PU film.

[0009] Preferably, the polymer membrane is provided with two layers, and a composite fiber reinforcement layer is compositely provided between the two layers of the polymer membrane.

[0010] Preferably, the thickness of the single air permeable polymer membrane is 0.9 to 1.8 mm.

[0011] The advantages of the present invention compared with the prior art are: in the present invention, by improving the composite membrane body, through the cooperation of the additionally arranged protective layer, bonding base layer and composite limiting reinforcement layer, the ultimate performance of the membrane body is enhanced while ensuring the waterproof and breathable performance of the membrane body, preventing the membrane body from tearing and extending its service life. The additionally arranged PU film on the outside not only further performs waterproof and breathable functions, but also protects the internal polymer membrane, forming multi-functional protection and ensuring the performance of the membrane body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The schematic diagram of the structure of a single air permeable polymer film for a board surface layer.

[0013] As shown in the figure: 1. polymer film, 2. protective layer, 3. bonding base layer, 4. decorative coating, 5. composite fiber reinforcement layer. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0015] References to embodiments of the present invention will now be provided in detail, one or more examples of which are described below. Each example is provided as an explanation rather than a limitation of the present invention. In fact, it will be apparent to those skilled in the art that various modifications and variations may be made to the present invention without departing from the scope or spirit of the present invention. For example, a feature illustrated or described as part of one embodiment may be used in another embodiment to produce a further embodiment.

[0016] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0017] Combined with Figure 1 As shown, a single air permeable polymer film for a panel surface layer comprises a polymer film 1 and a protective layer 2 and an adhesive base layer 3 respectively arranged on both sides of the polymer film 1, wherein a decorative coating 4 is connected between the adhesive base layer 3 and the protective layer 2.

[0018] In the specific implementation of the present invention, the bonding base layer 3 is made of fabric, the fabric includes warp yarns and weft yarns, the warp yarns and weft yarns are arranged perpendicular to each other, the diameter of the warp yarns and weft yarns is less than 0.3 mm, the polymer film 1 is a film doped with inorganic nanoparticles, and the inorganic nanoparticles are any one or more combinations of SiO2, ZnO, and TiO2.

[0019] In one embodiment, the protective layer 2 is a PU film, which increases the waterproof and breathable effect of the composite membrane. In order to increase the structural strength of the membrane, the polymer membrane 1 is provided with two layers, and a composite fiber reinforcement layer 5 is compositely provided between the two layers of the polymer membrane 1. The thickness of the single breathable polymer membrane is 0.9 to 1.8 mm.

[0020] The polymer film layer comprises: polyurethane, cellulose acetate, inorganic nanoparticles, dispersant and toughening agent, and the dispersant is polydimethylsiloxane.

[0021] In practical applications, the warp yarn and the weft yarn include any one of polyester, nylon, polypropylene, viscose fiber, glass fiber or aramid fiber.

[0022] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0023] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and embodiment similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A single air permeable polymer film for a board surface layer, characterized in that: It comprises a polymer film (1) and a protective layer (2) and an adhesive base layer (3) respectively arranged on both sides of the polymer film (1), wherein a decorative coating (4) is connected between the adhesive base layer (3) and the protective layer (2).

2. The single air permeable polymer film for a board surface layer according to claim 1, characterized in that: The bonding base layer (3) is made of fabric, the fabric comprises warp yarns and weft yarns, the warp yarns and weft yarns are arranged perpendicular to each other, and the diameters of the warp yarns and weft yarns are less than 0.3 mm.

3. The single air permeable polymer film for a board surface layer according to claim 1, characterized in that: The polymer film (1) is a film doped with inorganic nanoparticles, and the inorganic nanoparticles are any one or more combinations of SiO2, ZnO, and TiO2.

4. The single air permeable polymer film for a board surface layer according to claim 1, characterized in that: The protective layer (2) is a PU film.

5. The single air permeable polymer film for a board surface layer according to claim 1, characterized in that: The polymer membrane (1) is provided with two layers, and a composite fiber reinforcement layer (5) is compositely provided between the two layers of the polymer membrane (1).

6. The single air permeable polymer film for a board surface layer according to claim 1, characterized in that: The thickness of the single air permeable polymer membrane is 0.9-1.8 mm.

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