Self-repairing flame-retardant film

Abstract

The utility model belongs to the technical field of films, and particularly relates to a self-repairing flame-retardant film which comprises a film body, the film body comprises a glass fiber frame which improves the strength of the film body and is located in the middle layer of the film body, and a triangular frame is formed on the inner side of the glass fiber frame; the flame-retardant sheet is positioned in the triangular frame and is flush with the glass fiber frame; the self-repairing base materials are symmetrically distributed up and down relative to the glass fiber frame, and the two self-repairing base materials are attached to the upper and lower ends of the glass fiber frame and the flame-retardant sheet; it can be understood that the glass fiber frame and the flame-retardant sheet are arranged between the base materials, the structural strength and the flame-retardant performance of the film are enhanced, meanwhile, the self-repairing base materials are adopted, the microcapsule is used for releasing a repairing agent to fill damage, the service life of the film is prolonged, and the damage resistance is improved. In addition, the external protective coating effectively protects the film from external erosion, the temperature resistance, chemical resistance and flame retardant effect of the film are improved, and the comprehensive performance and safety of the film are further enhanced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of film, especially relates to a self -repairing flame -retardant film. BACKGROUND

[0002] Film is a material layer with a small thickness, usually ranging from a few nanometers to a few microns. Film technology is widely used in modern science and industry, involving multiple fields, including physics, chemistry, materials science, and engineering technology, etc.

[0003] Most conventional films do not have self-repairing and flame-retardant functions. If the film is mechanically damaged, scratched or cracked during use, it cannot automatically repair these damages. This may lead to the decline of the film's function, or even complete failure, increasing maintenance and replacement costs; if the film does not have flame-retardant properties, it may be easily ignited or quickly spread the fire when exposed to high temperatures or fire sources. This is a major hidden danger for electrical equipment, building materials or any application requiring fire protection. Especially in electronic products or building materials, if the film catches fire, it may cause more widespread catastrophic consequences.

[0004] To solve the above problems, a self-repairing flame-retardant film is proposed in this application. SUMMARY

[0005] The utility model aims at providing a self-repairing flame-retardant film, which solves the problems raised in the background.

[0006] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model is a self-repairing flame-retardant film, which includes a film body, the film body includes: a glass fiber frame that enhances the strength of the film body and is located in the middle layer, the inner side of the glass fiber frame forms a triangular frame; a flame-retardant sheet located in the triangular frame and flush with the glass fiber frame; self-repairing substrates symmetrically distributed above and below the glass fiber frame, two pieces of the self-repairing substrates are attached to the upper and lower ends of the glass fiber frame and the flame-retardant sheet, the self-repairing substrates have microcapsule flame retardants; and a protective coating that wraps the glass fiber frame and the self-repairing substrates as a whole.

[0008] Further, the glass fiber frame has an outer frame with a closed end formed along the periphery and a connecting sheet connected at opposite corners of the outer frame, and the triangular frame is formed by the outer frame and the connecting sheet.

[0009] Further, the glass fiber frame includes a polyurethane substrate and glass fibers that enhance the strength of the film body.

[0010] Further, the fire-retardant sheet is formed of transparent fire-retardant polycarbonate and is triangularly located in a triangular frame in the glass fiber frame, and upper and lower surfaces of the glass fiber frame and the fire-retardant sheet are flush.

[0011] Further, the self-repairing substrate is a mixture of polyurethane and microcapsule repairing agent, and when the film body has a scratch, the repairing agent in the microcapsule self-repairs.

[0012] Further, the glass fiber frame, the fire-retardant sheet and the self-repairing substrate are integrally formed by hot pressing.

[0013] Further, the protective coating is formed by spraying in a wrapping manner on the outside of the glass fiber frame and the self-repairing substrate.

[0014] The utility model has the following beneficial effects:

[0015] The glass fiber frame arranged between the two substrates can strengthen the structure of the film, and the triangular frame formed by the outer frame and the connecting sheet has higher strength, and the fire-retardant sheet arranged in the triangular frame can have a fire-retardant effect, and the performance of the film body is improved by the glass fiber frame and the fire-retardant sheet.

[0016] The self-repairing substrate in the utility model is composed of thermosetting polymers such as polyurethane or polyethylene and microcapsule self-repairing materials, the microcapsule contains repairing agent, when the film is damaged, the microcapsule is broken, the repairing agent is released, the crack or damage area is filled, the self-repairing material can effectively prolong the service life of the film and reduce the functional failure caused by cracks, scratches or other damages.

[0017] The protective coating completely wraps the film, the protective coating is selected from inorganic or organic paint, the film is protected from external environment, the fire-retardant effect is further enhanced, and the protective coating has good adhesion and high temperature resistance.

[0018] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages mentioned above. DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 It is the overall appearance structure schematic diagram of the utility model;

[0021] Figure 2 It is the structure schematic diagram in the coating.

[0022] Figure 3 For Figure 2 The structure diagram of the second split body is shown again.

[0023] Figure 4 For Figure 1 The structure diagram of the A part in the middle is enlarged.

[0024] In the drawings, the components represented by each reference numeral are listed as follows:

[0025] In the drawings: 1, film body; 2, glass fiber frame; 21, outer frame; 22, connecting piece; 3, flame-retardant sheet; 4, self-repairing base material; 5, protective coating. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery" and the like indicate the orientation or positional relationship, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0028] Please refer to Figures 1-4 The present application is a self-repairing flame-retardant film, which comprises a film body 1, the film body 1 comprising: a glass fiber frame 2 for improving the strength of the film body 1 and located in the middle layer, a triangular frame formed in the inner side of the glass fiber frame 2; a flame-retardant sheet 3 located in the triangular frame and arranged flush with the glass fiber frame 2; self-repairing base materials 4 symmetrically distributed above and below the glass fiber frame 2, the two self-repairing base materials 4 being attached to the upper and lower ends of the glass fiber frame 2 and the flame-retardant sheet 3, the self-repairing base materials 4 having microcapsule flame retardants therein; and a protective coating 5 wrapping the glass fiber frame 2 and the self-repairing base materials 4 as a whole, in the present embodiment, the glass fiber frame, the flame-retardant sheet and the self-repairing base materials are introduced into the film body to improve the mechanical strength and flame-retardant performance of the film, and the microcapsule repair agent is used to realize self-repairing when the film is damaged, thereby increasing the durability and reliability of the film; the structural design combines the functions of flame retardation, strength enhancement and self-repairing, and is suitable for environments with high requirements for fire prevention and durability.

[0029] The glass fiber frame 2 has an outer frame 21 with a closed opening formed along the periphery and a connecting piece 22 connected at the diagonal of the outer frame 21, and a triangular frame is formed by the outer frame 21 and the connecting piece 22. In this embodiment, the triangular frame formed by the outer frame and the connecting piece of the glass fiber frame enhances the overall structural stability of the membrane body, making the membrane body less likely to deform or be damaged under external force.

[0030] The glass fiber frame 2 includes a polyurethane base material and glass fibers that enhance the strength of the membrane body 1. In this embodiment, a polyurethane base material and glass fiber composite material is used, which maintains the strength of the glass fibers while improving the flexibility and durability of the membrane body, making the film perform better in actual applications.

[0031] The flame-retardant sheet 3 is formed of transparent flame-retardant polycarbonate and is triangularly located in the triangular frame of the glass fiber frame 2. The upper and lower surfaces of the glass fiber frame 2 and the flame-retardant sheet 3 are flush. In this embodiment, transparent flame-retardant polycarbonate material is used as the flame-retardant sheet, which makes the membrane body have good flame retardancy while ensuring the transparency of the film, which is suitable for occasions that require visual clarity. The flame-retardant sheet is arranged flush with the glass fiber frame, maintaining the flatness of the membrane body and further improving the stability and aesthetics of the membrane body.

[0032] The self-repairing base material 4 is a mixture of polyurethane and microcapsule repair agent, which can self-repair when the membrane body 1 has scratches. In this embodiment, a mixture of polyurethane and microcapsule repair agent is used. When the membrane body is scratched, the repair agent inside the microcapsule can be automatically released to repair the damage and extend the service life of the membrane body. The self-repairing function reduces the frequency of replacing or repairing the membrane body due to minor damage, saving maintenance costs.

[0033] The glass fiber frame 2, the flame-retardant sheet 3, and the self-repairing base material 4 are integrally formed by hot pressing. In this embodiment, the hot pressing process ensures that the glass fiber frame, the flame-retardant sheet, and the self-repairing base material are tightly combined to form a high-strength, uniform membrane body, improving the stability and pressure resistance of the film. At the same time, the hot pressing technology can simplify the production process, reduce manufacturing costs, and also ensure the adhesion of each layer of the membrane body.

[0034] The protective coating 5 is formed in a wrapped state on the outside of the glass fiber frame 2 and the self-repairing base material 4. In this embodiment, the protective coating provides an additional protective layer to prevent external environmental factors such as moisture and pollutants from eroding the membrane body, improving the weather resistance and service life of the membrane body. At the same time, the protective coating formed by spraying can improve the surface finish of the membrane body, improve the appearance quality of the membrane body, and provide scratch-resistant, anti-aging, and other protection functions.

[0035] It can be understood that by setting the glass fiber frame and the flame-retardant sheet between the substrates, the structural strength and the flame-retardant performance of the film are enhanced, and meanwhile, the self-repairing substrate is adopted, the microcapsules are used to release the repairing agent to fill the damage, the service life of the film is prolonged, and the damage resistance is improved. In addition, the external protective coating effectively protects the film from external erosion, improves the temperature resistance, chemical resistance and flame-retardant effect, and further enhances the comprehensive performance and safety of the film.

[0036] One specific application of the embodiment is:

[0037] The polyurethane is added with glass fibers and die-cut to form the glass fiber frame 2 composed of the outer frame 21 and the connecting sheet 22;

[0038] The flame-retardant sheet 3 is formed of transparent flame-retardant polycarbonate and filled in the triangular frame formed by the outer frame 21 and the connecting sheet 22;

[0039] The self-repairing substrate 4 adopts polyurethane as the film substrate, and the microcapsule repairing agent is added in the substrate, and the glass fiber frame 2 passes through;

[0040] The glass fiber frame 2, the flame-retardant sheet 3 and the self-repairing substrate 4 are integrally formed by gluing or hot melting;

[0041] The protective coating 5 is formed on the outside of the above-mentioned semi-finished product by spraying, dipping, electroplating and the like, and is completely wrapped to form the final film body 1.

[0042] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0043] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, and the utility model is not limited to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A self-healing flame-retardant film, comprising a film body (1), characterized in that, The membrane (1) comprises: A glass fiber frame (2) that enhances the strength of the membrane (1) and is located in its middle layer, wherein a triangular frame is formed on the inner side of the glass fiber frame (2); Flame-retardant sheet (3) located within the triangular frame and flush with the fiberglass frame (2); The self-healing substrate (4) is symmetrically distributed on the upper and lower sides of the glass fiber frame (2). The two self-healing substrates (4) are attached to the upper and lower ends of the glass fiber frame (2) and the flame retardant sheet (3). The self-healing substrate (4) contains microcapsule flame retardant. At the same time, a protective coating (5) is applied to completely wrap the fiberglass frame (2) and the self-healing substrate (4).

2. The self-healing flame-retardant film according to claim 1, characterized in that: The fiberglass frame (2) has an outer frame (21) forming a closed opening along its periphery and a connecting piece (22) connected to the diagonal of the outer frame (21). The triangular frame is formed by the outer frame (21) and the connecting piece (22).

3. The self-healing flame-retardant film according to claim 2, characterized in that: The glass fiber frame (2) includes a polyurethane substrate and glass fibers that enhance the strength of the membrane (1).

4. The self-healing flame-retardant film according to claim 1, characterized in that: The flame-retardant sheet (3) is formed of transparent flame-retardant polycarbonate and is triangular in shape, located within a triangular frame in the glass fiber frame (2). The upper and lower surfaces of the glass fiber frame (2) and the flame-retardant sheet (3) are flush.

5. The self-healing flame-retardant film according to claim 1, characterized in that: The self-healing substrate (4) is a mixture of polyurethane and microcapsule repair agent, which self-repairs when the membrane (1) is scratched by the repair agent inside the microcapsule.

6. The self-healing flame-retardant film according to claim 1, characterized in that: The fiberglass frame (2), flame-retardant sheet (3), and self-healing substrate (4) are integrally formed by hot pressing.

7. The self-healing flame-retardant film according to claim 6, characterized in that: The protective coating (5) is sprayed in a wrapping manner on the outside of the fiberglass frame (2) and the self-healing substrate (4).

Images