Explosion-proof membrane for automobile

Abstract

The utility model discloses an explosion-proof membrane for an automobile, which comprises an explosion-proof base material layer, a first surface and a second surface along the thickness of the membrane; the adhesive layer is arranged on the first surface; the second surface is provided with an anti-fouling layer, the surface of the anti-fouling layer is provided with first protrusions and second protrusions, the first protrusions are higher than the second protrusions, the surfaces of the first protrusions and the second protrusions are coated with anti-fouling surface layers, or the first protrusions and / or the second protrusions are made of anti-fouling materials, and dirt removal channels are formed between the first protrusions and the second protrusions. The explosion-proof membrane for the automobile is reasonable in structure, and the light transmittance and the anti-dazzle effect of the explosion-proof membrane are optimized through the arrangement of the first protrusions and the second protrusions; the first protrusions and the second protrusions have anti-fouling performance, the dirt removing channel is formed between the first protrusions and the second protrusions, the anti-fouling performance of the anti-explosion film is improved, accumulated water and dust on the surface of the anti-explosion film are removed in time, and the view field and light rays of glass are prevented from being affected.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof films, in particular to an explosion-proof film for automobiles. Background Art

[0002] Glass has excellent light transmittance, and buildings and cars often incorporate it to enhance visibility and light. However, due to external temperature fluctuations or physical impact, glass tends to shatter and break. A common solution is to use explosion-proof film, which uses its toughness to prevent fragments from flying, thereby reducing injuries and property damage caused by glass breakage and improving safety.

[0003] During use, gasoline is easily stained on the car windows, and the poor anti-fouling property of the explosion-proof film can easily lead to blurred vision and light through the glass, posing a safety hazard.

[0004] Therefore, it is necessary to improve the automobile explosion-proof film in the prior art. Utility Model Content

[0005] The purpose of the utility model is to overcome the defects existing in the prior art and provide an explosion-proof film for automobiles, which optimizes the light transmittance and anti-glare effect of the explosion-proof film by setting the first protrusion and the second protrusion; the first protrusion and the second protrusion have anti-fouling properties, and a decontamination channel is formed between the first protrusion and the second protrusion, thereby improving the anti-fouling performance of the explosion-proof film and timely removing accumulated water and dust on its surface to prevent affecting the field of view and light of the glass.

[0006] In order to achieve the above technical effects, the technical solution of the utility model is: an explosion-proof film for automobiles, comprising:

[0007] An explosion-proof base material layer having a first surface and a second surface along the thickness of the film;

[0008] an adhesive layer, disposed on the first surface;

[0009] The second surface is provided with an anti-fouling layer, and the surface of the anti-fouling layer is provided with a first protrusion and a second protrusion. The height of the first protrusion is greater than the height of the second protrusion. The surfaces of the first protrusion and the second protrusion are both covered with an anti-fouling surface layer, or the first protrusion and / or the second protrusion are made of an anti-fouling material, and a decontamination channel is formed between the first protrusion and the second protrusion.

[0010] A preferred technical solution is that the antifouling layer is a repair surface layer, and a polyurethane repair inner layer is provided between the explosion-proof base material layer and the antifouling layer.

[0011] A preferred technical solution is that the polyurethane repair inner layer is matched with the explosion-proof base material layer and / or anti-fouling layer in a concave-convex manner.

[0012] A preferred technical solution is that the explosion-proof base material layer contains a thermoplastic polyurethane layer, and the explosion-proof base material layer is a laminated structure of thermoplastic polyurethane layer / polyethylene terephthalate layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / thermoplastic polyurethane layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / polyurethane layer / thermoplastic polyurethane layer.

[0013] A preferred technical solution is that the material of the first protrusion is one of silica particles, polydimethylsiloxane phase, and polystyrene microspheres, and the material of the second protrusion is one of silica particles, polymethyl methacrylate phase, and polystyrene microspheres.

[0014] A preferred technical solution is that the material of the anti-fouling surface layer is one of a fluorinated polymer attachment layer, a silane coupling agent attachment layer, a surfactant attachment layer and a nanomaterial layer.

[0015] A preferred technical solution is that one of the thermoplastic polyurethane layers in the explosion-proof substrate layer is a heat-insulating layer, or the polyethylene terephthalate and thermoplastic polyurethane layers are connected by an adhesive layer, and the adhesive layer is a heat-insulating adhesive layer.

[0016] A preferred technical solution is that a protective layer is provided on the surface of the anti-fouling layer away from the explosion-proof base material layer, and an antistatic release film is provided on the surface of the adhesive layer away from the explosion-proof base material layer.

[0017] The advantages and beneficial effects of the utility model are:

[0018] The explosion-proof film for automobiles has a reasonable structure. It reduces the concentrated reflection of light through the mutual reflection of protrusions of different heights, adapts to the mutual reflection of incident light at different angles, and improves the light transmittance of the explosion-proof film. In combination with the anti-fouling surface layer or anti-fouling material covering the surfaces of the first and second protrusions, and the formation of a decontamination channel between the first and second protrusions, the anti-fouling performance of the explosion-proof film is improved, and accumulated water and dust on its surface are removed in time to prevent affecting the field of view and light of the glass. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of Example 1 of the utility model explosion-proof film for automobiles;

[0020] Figure 2 This is a structural diagram of Example 2 of the utility model explosion-proof film for automobiles;

[0021] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 yes Figure 2 A partial enlarged view of B.

[0023] In the figure: 1. explosion-proof base material layer; 2. adhesive layer; 3. anti-fouling layer; 4. polyurethane repair inner layer; 5. protective layer; 6. antistatic release film; 10. adhesive layer; 11. thermoplastic polyurethane layer; 30. decontamination channel; 31. first protrusion; 32. second protrusion. DETAILED DESCRIPTION

[0024] The following embodiments are used to further describe the specific embodiments of the present invention in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0025] The terms "surface layer" and "inner layer" are based on the normal use state of automobile explosion-proof film and are only used to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, they cannot be understood as a limitation to the present invention.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified with "first," "second," etc., may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more.

[0027] like Figures 1 to 4 As shown, the automobile explosion-proof film disclosed in the present invention includes an explosion-proof base material layer 1, an adhesive layer 2 and an anti-fouling layer 3. The explosion-proof base material layer 1 has a first surface (not marked) and a second surface (not marked) along the thickness of the film. The adhesive layer 2 is arranged on the first surface, and the anti-fouling layer 3 is arranged on the second surface. The surface of the anti-fouling layer 3 is provided with a first protrusion 31 and a second protrusion 32. The height of the first protrusion 31 is greater than the height of the second protrusion 32. The surfaces of the first protrusion 31 and the second protrusion 32 are both covered with an anti-fouling surface layer (not shown), or the first protrusion 31 and / or the second protrusion 32 are made of an anti-fouling material. A decontamination channel 30 is formed between the first protrusion 31 and the second protrusion 32.

[0028] The mutual reflection of protrusions at different heights can reduce the concentrated reflection of light, adapt to the mutual reflection of incident light at different angles, and improve the transmittance of the explosion-proof film; combined with the anti-fouling surface covering the surface of the first protrusion and the second protrusion or the use of anti-fouling material, and the formation of a decontamination channel between the first protrusion and the second protrusion, the anti-fouling performance of the explosion-proof film is improved and the accumulated water and dust on its surface are removed in time to prevent affecting the field of view and light of the glass.

[0029] like Figure 4As shown, in a preferred embodiment, the antifouling layer 3 serves as a repair surface layer, and a polyurethane repair inner layer 4 is disposed between the explosion-proof substrate layer 1 and the antifouling layer 3. The provision of two repair layers not only modifies the function of the explosion-proof membrane and enhances its repair function, but also further improves its toughness, making it suitable for lamination to curved glass.

[0030] Furthermore, the polyurethane repair inner layer 4 is matched with the explosion-proof substrate layer 1 and / or the anti-fouling layer 3 in a concave-convex manner, thereby improving the adhesion and connection firmness between the polyurethane inner layer 4 and the interface between the explosion-proof substrate layer 1 and the anti-fouling layer 3, and also improving the bending resistance of the explosion-proof film, which is suitable for bonding to curved glass.

[0031] The explosion-proof base material layer 1 includes a thermoplastic polyurethane layer 11. The explosion-proof base material layer 1 has a laminated structure of thermoplastic polyurethane layer / polyethylene terephthalate layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / thermoplastic polyurethane layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / polyurethane layer / thermoplastic polyurethane layer.

[0032] like Figure 2 As shown, the explosion-proof base material layer has a laminated structure of thermoplastic polyurethane layer / polyurethane layer / thermoplastic polyurethane layer. Thermoplastic polyurethane (TPU) has high elasticity and resilience, excellent abrasion resistance, high tear strength, good tolerance to a variety of chemicals, and maintains good flexibility and elasticity even at low temperatures. It can be prepared into a transparent optical film with good thermoplasticity, can be prepared through various processing methods, and is easily recycled. By compounding with polyurethane (PU), the softness and hardness of the explosion-proof film can be adjusted to suit different scenarios.

[0033] like Figure 1 As shown, the explosion-proof base material layer has a laminated structure of thermoplastic polyurethane layer / polyethylene terephthalate layer / thermoplastic polyurethane layer. The composite of PET and TPU increases the surface hardness and scratch resistance, and the combination greatly improves the overall protection performance. The combination of the softness of TPU and the stability of PET can make the explosion-proof film easier to install and better fit the glass curve.

[0034] The explosion-proof base material layer with a laminated structure of thermoplastic polyurethane layer / thermoplastic polyurethane layer / thermoplastic polyurethane layer has the best flexibility.

[0035] The material of the first protrusion 31 is one of silica particles, polydimethylsiloxane phase, and polystyrene microspheres, and the material of the second protrusion 32 is one of silica particles, polymethyl methacrylate phase, and polystyrene microspheres. Among them, the silica particles are of two types: nanometer-scale and micrometer-scale, which ensures the transmittance of the explosion-proof film while reducing the cost of raw materials, and is also conducive to the reflection of incident light between the first protrusion and the second protrusion. Similarly, the polystyrene microspheres are also of two types: nanometer-scale and micrometer-scale. The first protrusion 31 and the second protrusion 32 have the following combinations: the first protrusion 31 is micrometer-scale silica particles, and the second protrusion 32 is nanometer-scale silica particles; the first protrusion 31 is micrometer-scale polystyrene microspheres, and the second protrusion 32 is nanometer-scale silica particles; the first protrusion 31 is a polydimethylsiloxane phase, and the second protrusion 32 is a polymethyl methacrylate phase, and the two are formed by phase separation.

[0036] Furthermore, the antifouling surface layer is made of one of a fluorinated polymer attachment layer, a silane coupling agent attachment layer, a surfactant attachment layer, and a nanomaterial layer. Fluorinated polymers, such as tridecafluorooctyltriethoxysilane, chemically bond to the silica surface to form a low-surface-energy fluorinated layer, significantly improving antifouling performance. Polytetrafluoroethylene and fluorinated acrylates, for example, are coated or grafted onto the silica surface to form a low-surface-energy coating. Silane coupling agents, such as methyltrimethoxysilane (MTMS), chemically react to form a low-surface-energy siloxane layer on the silica surface, improving antifouling performance. Vinyltrimethoxysilane (VTMS), for example, chemically reacts to form a low-surface-energy siloxane layer on the silica surface, improving antifouling performance. Nanomaterials, such as nanosilver, deposit nanosilver particles on the silica surface, leveraging silver's antibacterial properties to reduce microbial contamination. Surfactants, such as cetyltrimethylammonium bromide (CTAB), form a hydrophobic layer on the silica surface, enhancing antifouling performance.

[0037] To optimize the thermal insulation performance of the explosion-proof membrane, one of the thermoplastic polyurethane layers 11 in the explosion-proof substrate layer 1 serves as a thermal insulation layer, or the polyethylene terephthalate and thermoplastic polyurethane layers are connected by an adhesive layer 10, which serves as a thermal insulation layer. Nano-ceramic materials are added to the adhesive layer or thermoplastic polyurethane layer to achieve a thermal insulation effect.

[0038] A protective layer 5 is provided on the surface of the anti-fouling layer 3 away from the explosion-proof base material layer 1 , and an antistatic release film 6 is provided on the surface of the adhesive layer 2 away from the explosion-proof base material layer 1 .

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An explosion-proof film for automobiles, comprising: An explosion-proof base material layer having a first surface and a second surface along the thickness of the film; an adhesive layer, disposed on the first surface; It is characterized in that the second surface is provided with an anti-fouling layer, the surface of the anti-fouling layer is provided with a first protrusion and a second protrusion, the height of the first protrusion is greater than the height of the second protrusion, the surfaces of the first protrusion and the second protrusion are both covered with an anti-fouling surface layer, or the first protrusion and / or the second protrusion are made of anti-fouling material, and a decontamination channel is formed between the first protrusion and the second protrusion.

2. The explosion-proof film for automobile according to claim 1, characterized in that: The antifouling layer is a repair surface layer, and a polyurethane repair inner layer is provided between the explosion-proof base material layer and the antifouling layer.

3. The explosion-proof film for automobile according to claim 2, characterized in that: The polyurethane repair inner layer is matched with the explosion-proof base material layer and / or the anti-fouling layer in a concave-convex manner.

4. The explosion-proof film for automobile according to claim 1, characterized in that: The explosion-proof base material layer contains a thermoplastic polyurethane layer, and the explosion-proof base material layer has a laminated structure of thermoplastic polyurethane layer / polyethylene terephthalate layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / thermoplastic polyurethane layer / thermoplastic polyurethane layer, or thermoplastic polyurethane layer / polyurethane layer / thermoplastic polyurethane layer.

5. The explosion-proof film for automobile according to claim 1, characterized in that: The material of the first protrusion is one of silicon dioxide particles, polydimethylsiloxane phase, and polystyrene microspheres. The material of the second protrusion is one of silicon dioxide particles, polymethyl methacrylate phase, and polystyrene microspheres.

6. The explosion-proof film for automobile according to claim 1 or 5, characterized in that: The material of the anti-fouling surface layer is one of a fluorinated polymer attachment layer, a silane coupling agent attachment layer, a surfactant attachment layer and a nano material layer.

7. The explosion-proof film for automobile according to claim 4, characterized in that: One of the thermoplastic polyurethane layers in the explosion-proof substrate layer is a heat-insulating layer, or the polyethylene terephthalate and thermoplastic polyurethane layers are connected by an adhesive layer, and the adhesive layer is a heat-insulating adhesive layer.

8. The explosion-proof film for automobile according to claim 1, characterized in that: A protective layer is provided on the surface of the anti-fouling layer away from the explosion-proof base material layer, and an antistatic release film is provided on the surface of the adhesive layer away from the explosion-proof base material layer.

Images