TWM608778U - Composite board - Google Patents

Abstract

A composite board is transparent. The composite board includes a substrate layer, a film layer and a protective layer. The film layer is located on the surface of the substrate layer. The film layer includes transparent resins with different refractive indices, and the different transparent resins are stacked on top of each other. The protective layer is located on the surface of the film layer away from the substrate layer. The composite board provided by this disclosure is provided with the base material layer, the film layer and the protective layer by stacking, on the basis of satisfying the transparency of the composite board, it also has many good properties such as heat insulation, impact resistance, flame resistance, fire resistance, weather resistance, yellowing resistance and aging resistance. In addition, the composite board also has the effects of beautiful appearance and sound insulation. The composite board can be applied to various occasions.

Description

Composite board

The application relates to the field of construction, and in particular to a composite board.

Building materials are indispensable in the process of indoor or outdoor construction, and the existing building materials have a single performance and cannot meet the needs of modern urban construction.

Therefore, it is necessary to provide a composite board with various functions to solve the above-mentioned problems.

A composite board, the composite board is transparent, the composite board includes a substrate layer, a film layer and a protective layer, the film layer is located on the surface of the substrate layer, and the film layer includes transparent resins with different refractive coefficients, The different transparent resins are stacked on each other; the protective layer is located on the surface of the film layer away from the substrate layer.

Further, the film layer includes polymethyl methacrylate and polyethylene terephthalate, and the polymethyl methacrylate and the polyethylene terephthalate are alternately laminated in sequence.

Further, the thickness of the film layer is 10 μm-50 μm.

Further, the protective layer includes polymethyl methacrylate and an anti-ultraviolet agent mixed in the polymethyl methacrylate.

Further, the protective layer is also located on the surface of the substrate layer away from the film layer.

Further, the thickness of the protective layer is 0.2mm-0.5mm.

Further, the composite board further includes a connection layer located between the substrate layer and the film layer, and the connection layer is used to connect the substrate layer and the film layer.

Further, the material of the connecting layer includes polymethyl methacrylate.

Further, the material of the substrate layer includes polycarbonate.

Further, the thickness of the substrate layer is 2mm-6mm.

The composite board provided by the present application is provided by stacking the substrate layer, film layer and protective layer, which not only satisfies the transparency of the composite board, but also has heat insulation, impact resistance, flame resistance, fire resistance, and weather resistance. , Anti-yellowing, anti-aging and other good properties are integrated; in addition, the composite board also has the effects of beautiful appearance, sound insulation and the like. The composite board can be applied to various occasions.

In order to be able to understand the above objectives, features and advantages of the application more clearly, the application will be described in detail below with reference to the accompanying drawings and specific implementations. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other if there is no conflict. In the following description, many specific details are set forth in order to fully understand the application, and the described implementations are only a part of the implementations of the application, rather than all of the implementations. Based on the implementation manners in this application, all other implementation manners obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terminology used in the specification of the application herein is only for the purpose of describing specific embodiments, and is not intended to limit the application. The term "and/or" as used herein includes all and any combinations of one or more related listed items.

In the embodiments of this application, for the convenience of description rather than limiting the application, the term "connection" used in the specification of the patent application of this application and the scope of the patent application is not limited to physical or mechanical connections, whether direct or indirect. of. "Up", "Down", "Above", "Below", "Left", "Right", etc. are only used to indicate the relative position relationship. When the absolute position of the described object is changed, the relative position relationship is also correspondingly change.

Please refer to FIG. 1, an embodiment of the present application provides a composite board 100, and the composite board 100 is transparent. The composite board 100 includes a substrate layer 10, a connection layer 20, a film layer 30 and a protective layer 40 which are stacked. The composite board 100 can be used in a variety of occasions, including indoors and outdoors, such as roofs of industrial plants, office buildings, public facilities, roofs of shopping malls, swimming pool decorations, and home decorations.

The substrate layer 10 is the main structure of the composite board 100. The base layer 10 has characteristics such as impact resistance, flame resistance, and fire resistance. The material of the substrate layer 10 is a transparent resin material. In a specific embodiment, the material of the substrate layer 10 is polycarbonate (PC), and PC also has the advantages of good permeability, good lighting performance, and good sound insulation effect.

The thickness of the substrate layer 10 can be set as required. For example, in a specific embodiment, the thickness of the substrate layer 10 is 2 mm-6 mm. The lower limit of the thickness of the substrate layer 10 can be selected from 2mm, 2.5mm, 3.2mm, 4.3mm, 4.8mm, 5.6mm; the upper limit of the thickness of the substrate layer 10 can be selected from 2.2mm, 2.8mm, 3.5 mm, 4.6mm, 4.9mm, 5.8mm. The selection of the lower limit and the upper limit of the thickness of the substrate layer 10 needs to be reasonable, that is, the lower limit must be less than or equal to the upper limit.

The connecting layer 20 is located on one surface of the base layer 10, and the connecting layer 20 connects the base layer 10 and the film layer 30. The ratio of the thickness of the connecting layer 20 to the thickness of the base layer 10 is greater than or equal to 0.05. The connecting layer 20 is made of polymethyl methacrylate (PMMA).

The film layer 30 is located on the surface of the connecting layer 20 away from the substrate layer 10, and the film layer 30 is composed of thermoplastic transparent resins with different refractive indices. In a specific embodiment, the film layer 30 is made of PMMA and polyethylene terephthalate (Polyethylene terephthalate, PET) alternately laminated and co-extruded, and the refractive index difference between PMMA and PET is 0.03, and the laminated layers If the number is greater than or equal to 200, the thickness of the film layer 30 along the stacking direction is 10 μm-50 μm, thereby forming the film layer 30 of the multilayer rainbow film. The film layer 30 is capable of both refraction, interference, and reflection of light. It blocks infrared rays (wavelengths of 760nm-1μm) and blocks heat radiation generated by infrared rays, thereby having good heat insulation performance; and having dazzling colors, increasing the aesthetic appearance of the composite board 100.

The thickness of the film layer 30 can be set as required. For example, in a specific embodiment, the thickness of the film layer 30 along the lamination direction is 10 μm-50 μm, and the lower limit of the thickness of the film layer 30 can be selected from 10 μm, 15 μm, 22 μm, 28 μm, 36 μm, 50 μm; The upper limit of the thickness of the film layer 30 can be selected from 12 μm, 23 μm, 29 μm, 37 μm, 42 μm, and 50 μm. The selection of the lower limit and the upper limit of the thickness of the film layer 30 needs to be reasonable, that is, the lower limit must be less than or equal to the upper limit.

The protective layer 40 is disposed on the surface of the film layer 30 away from the connecting layer 20, and the protective layer 40 includes a transparent resin and an anti-ultraviolet (UV) agent, and the anti-ultraviolet agent is dispersed in the transparent resin. The protective layer 40 is used to prevent ultraviolet rays from damaging the substrate layer 10.

The transparent resin is PMMA; the anti-ultraviolet agent includes, but is not limited to, benzoic acids 2113, benzophenones, benzotriazoles, and the like.

In a specific embodiment, the protective layer 40 is composed of PMMA and an anti-ultraviolet agent dispersed in PMMA. Among them, the PMMA has good weather resistance, adaptability to the natural environment, resistance to yellowing, anti-aging performance, and ability to maintain high light transmittance. Even if it is exposed to sunlight, wind and rain for a long time, it will not cause PMMA The performance has changed. At the same time, PMMA can effectively filter ultraviolet rays with a wavelength of less than 300nm, but because the PMMA has a poor filtering effect on ultraviolet rays with a wavelength of 300nm-400nm, the combination of the anti-ultraviolet agent can improve the Anti-ultraviolet properties of the protective layer 40. In addition, PMMA also has properties such as transparency, high surface hardness, and light quality.

The thickness of the protective layer 40 can be set as required. For example, in a specific embodiment, the thickness of the protective layer 40 is 0.2 mm-0.5 mm. The lower limit of the thickness of the protective layer 40 can be selected from 0.2mm, 0.25mm, 0.32mm, 0.43mm, 0.48mm; the upper limit of the thickness of the protective layer 40 can be selected from 0.22mm, 0.28mm, 0.35mm, 0.46mm , 0.5mm. The selection of the lower limit and the upper limit of the thickness of the protective layer 40 needs to be reasonable, that is, the lower limit must be less than or equal to the upper limit.

Further, the protective layer 40 is also provided on the surface of the substrate layer 10 away from the film layer 30, that is, the outer surface of the composite board 100 is provided with the protective layer 40 to block ultraviolet rays from natural light. To the substrate layer 10, the substrate layer 10 is prevented from being exposed to direct sunlight and the service life is shortened.

Wherein, when the composite board 100 is used outdoors, the side of the protective layer 40 located on the surface of the film layer 30 is set toward the direction with direct sunlight.

The composite board 100 provided by the present application is provided by stacking the substrate layer 10, the film layer 30 and the protective layer 40, which not only satisfies the transparency of the composite board 100, but also has heat insulation, impact resistance, flame resistance, Various good properties such as fire resistance, weather resistance, yellowing resistance and aging resistance are integrated; in addition, the composite board 100 also has the effects of beautiful appearance, sound insulation and the like. The composite board 100 can be applied to a variety of occasions.

The above embodiments are only used to illustrate the technical solutions of the application and not to limit them. Although the application has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the application can be modified or equivalently replaced None should deviate from the spirit and scope of the technical solution of this application.

100: composite board 10: Substrate layer 20: Connection layer 30: Membrane 40: protective layer

FIG. 1 is a schematic diagram of the structure of a composite board provided by an embodiment of the application.

100: composite board

10: Substrate layer

20: Connection layer

30: Membrane

40: protective layer

Claims (10)

A composite board is improved in that the composite board is transparent, and the composite board includes: Substrate layer A film layer, the film layer is located on the surface of the substrate layer, the film layer includes transparent resins with different refractive indices, and the different transparent resins are stacked on each other; and The protective layer is located on the surface of the film layer away from the substrate layer. The composite board according to claim 1, wherein the film layer includes polymethyl methacrylate and polyethylene terephthalate, and the polymethyl methacrylate and the polyethylene terephthalate The glycol esters are stacked alternately in sequence. The composite board according to claim 2, wherein the thickness of the film layer is 10 μm-50 μm. The composite board according to claim 1, wherein the protective layer includes polymethyl methacrylate and an anti-ultraviolet agent mixed in the polymethyl methacrylate. The composite board according to claim 4, wherein the protective layer is also located on the surface of the substrate layer away from the film layer. The composite board according to claim 4, wherein the thickness of the protective layer is 0.2mm-0.5mm. The composite board according to claim 1, wherein the composite board further comprises a connection layer, the connection layer is located between the substrate layer and the film layer, and the connection layer is used to connect the substrate layer And the film layer. The composite board according to claim 7, wherein the material of the connecting layer includes polymethyl methacrylate. The composite board according to claim 1, wherein the material of the substrate layer includes polycarbonate. The composite board according to claim 9, wherein the thickness of the substrate layer is 2mm-6mm.

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