Degradable environment-friendly automobile film

Abstract

The utility model relates to the related field of automobile films, in particular to a degradable environment-friendly automobile film which comprises a base material layer, a connecting layer, a bio-based polyurethane coating, a water-based starch-based coating, a polylactic acid coating, a nano titanium dioxide coating, a nano ceramic coating, microcapsules, bio-enzyme filler and the like. The bio-based polyurethane coating, the water-based starch-based coating and the polylactic acid coating are arranged on the base material layer, so that the overall degradation speed of the automobile film can be remarkably improved, and the coating materials have high biodegradability and environmental protection performance and can act synergistically to accelerate the degradation process of the automobile film in the natural environment, so that the automobile film has the advantages of environmental protection and environmental protection. And after the microcapsules are damaged, the bio-enzyme filling material in the microcapsules reacts with the bio-based polyurethane coating, so that the degradation speed of the automobile film is increased, the pollution of the automobile film to the environment is reduced, and the environmental protection effect of the automobile film is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of automobile film related, especially a degradable environmental protection type automobile film. BACKGROUND

[0002] With the development of the automobile industry, the use of cars is more and more popular, and the research and development and application of automobile peripheral products are more and more valued by people, and the automobile film is an important product for protecting the car, which can effectively prevent the car from being scratched in the process of daily driving, and the automobile film can also protect the car paint and sunlight on the surface of the car. The existing automobile film can provide better protection for the surface of the car, but its functionality is relatively single, and it is difficult to degrade quickly after the automobile film is damaged and discarded, which can easily cause the discarded automobile film to pollute the environment, so that the environmental protection of the automobile film is poor. SUMMARY

[0003] Therefore, in order to solve the above problems, the utility model provides a degradable environmental protection type automobile film to solve the above technical problems.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme: a degradable environmental protection type automobile film, comprising a substrate layer, the upper surface of the substrate layer is coated with a connecting layer, the upper surface of the connecting layer is connected with a bio-based polyurethane coating layer;

[0005] The upper surface of the bio-based polyurethane coating layer is coated with a water-based starch-based coating layer and a polylactic acid coating layer from bottom to top;

[0006] The inside of the bio-based polyurethane coating layer is embedded with a plurality of microcapsules, and the inside of each microcapsule is filled with a biological enzyme filling material.

[0007] Preferably, the material of the connecting layer is silane coupling agent.

[0008] Preferably, the upper surface of the polylactic acid coating layer is coated with a nanometer titanium dioxide coating layer.

[0009] Preferably, the upper surface of the nanometer titanium dioxide coating layer is coated with a nanometer ceramic coating layer.

[0010] Preferably, the microcapsules in the bio-based polyurethane coating layer are equally spaced, and the microcapsules are made of polylactic acid material.

[0011] The utility model has the advantages of:

[0012] The utility model discloses a biological base polyurethane coating, water nature starch base coating and polylactic acid coating are set up on the substrate layer, can significantly improve the degradation rate of automobile film whole, these coating materials all have higher biodegradability and environmental protection performance, can synergistic effect, accelerate the degradation process of car film in the natural environment, and after the breakage of microcapsule, the biological enzyme filling material in its inside and biological base polyurethane coating react, improve the degradation rate of automobile film, reduce the pollution of automobile film to the environment, improved the environmental protection effect of automobile film. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the automobile film front view cross section structure schematic diagram of the utility model.

[0014] Figure 2 It is the biological base polyurethane coating front view cross section structure schematic diagram of the utility model.

[0015] Among them: substrate layer-1, connecting layer-2, biological base polyurethane coating-3, water nature starch base coating-4, polylactic acid coating-5, nanometer titanium dioxide coating-6, nanometer ceramic coating-7, microcapsule-8, biological enzyme filling material-9. DETAILED DESCRIPTION

[0016] In order to further explain the technical scheme of the utility model, the following is elaborated through specific embodiment.

[0017] As Figure 1 The utility model provides a degradable environmental protection type automobile film, including substrate layer 1.

[0018] The substrate layer 1 in this embodiment is polyester film, which has good transparency, strength and durability.

[0019] Specifically, when using, the back of the substrate layer 1 is coated with a paste adhesive layer, so that the automobile film is adhered to the car as a whole through the paste adhesive layer.

[0020] As Figure 1 And Figure 2 As shown in the drawings, the upper surface of the substrate layer 1 in this embodiment is coated with a connecting layer 2, and the upper surface of the connecting layer 2 is connected with a biological base polyurethane coating 3, so as to realize the connection and fixation of the biological base polyurethane coating 3 on the substrate layer 1 through the connecting layer 2.

[0021] The upper surface of the biological base polyurethane coating 3 is sequentially coated with a water nature starch base coating 4 and a polylactic acid coating 5 from bottom to top.

[0022] The biological base polyurethane coating 3 is fixedly embedded with a plurality of microcapsules 8, and each microcapsule 8 is filled with a biological enzyme filling material 9.

[0023] The material of the connecting layer 2 in the embodiment is a silane coupling agent, which is convenient for improving the interfacial bonding force between the bio-based polyurethane coating 3 and the substrate layer 1, thereby improving the overall durability and anti-peeling property of the bio-based polyurethane coating 3;

[0024] In the embodiment, the upper surface of the polylactic acid coating 5 is coated with a nano-titanium dioxide coating 6, which is convenient for improving the hydrophobicity of the car film, reducing the pollution of impurities on the surface of the car film, and at the same time, the nano-titanium dioxide coating 6 can help block more ultraviolet rays from entering the car, thereby protecting the passengers from ultraviolet damage;

[0025] In the embodiment, the upper surface of the nano-titanium dioxide coating 6 is coated with a nano-ceramic coating 7, which improves the wear and scratch resistance of the car film, and is conducive to enabling the car film to better resist external forces;

[0026] In the embodiment, the microcapsules 8 in the bio-based polyurethane coating 3 are evenly distributed, which is convenient for the biological enzyme filling material 9 in the microcapsules 8 to react more uniformly with the bio-based polyurethane coating 3, so that the car film is more fully and quickly degraded. The microcapsules 8 are made of polylactic acid material, which is a biodegradable polymer, and the polylactic acid material has good mechanical properties and can provide good protection for the biological enzyme filling material;

[0027] In the embodiment, the biological enzyme filling material 9 is protease;

[0028] Specifically, the bio-based polyurethane 3 provides certain physical strength and durability for the car film, the water-based starch-based coating 4 increases the water sensitivity of the overall structure of the car film, promotes the occurrence of microbial activity during the degradation process, and the presence of the polylactic acid coating 5 not only directly contributes to the overall degradation rate of the material, but also is conducive to promoting the better fusion between the other two components.

[0029] When these car films coated with various biodegradable materials are exposed to the environment, they will gradually begin to degrade, and the entire car film will return to the natural cycle more quickly;

[0030] And when the car film is damaged, a certain mechanical force can be applied to the car film to break the microcapsules 8, and the biological enzyme filling material 9 in the microcapsules 8 flows out. The biological enzyme filling material 9 of protease accelerates the hydrolysis reaction of the urethane bond in polyurethane by reducing the activation energy of the hydrolysis reaction. The products of the hydrolysis reaction include small molecule alcohols and acids, which are more easily degraded by microorganisms, thereby accelerating the degradation process of the entire car film, reducing the pollution of the car film to the environment, and making the car film more environmentally friendly.

[0031] The above merely describes preferred examples of the present application and is not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or equivalently replace some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A degradable and environment-friendly automobile film, comprising a substrate layer; characterized in that an upper surface of the substrate layer is coated with a connecting layer, and an upper surface of the connecting layer is connected with a bio-based polyurethane coating layer; an upper surface of the bio-based polyurethane coating layer is sequentially coated from bottom to top with a water-based starch-based coating layer and a polylactic acid coating layer; a plurality of microcapsules are embedded in the bio-based polyurethane coating layer, and each microcapsule is filled with a biological enzyme filling material.

2. The degradable environment-friendly automobile film according to claim 1, characterized in that: The connecting layer is made of silane coupling agent.

3. The degradable environment-friendly automobile film according to claim 1, characterized in that: An upper surface of the polylactic acid coating layer is coated with a nano-titanium dioxide coating layer.

4. The degradable environment-friendly automobile film according to claim 3, characterized in that: An upper surface of the nano-titanium dioxide coating layer is coated with a nano-ceramic coating layer.

5. The degradable environment-friendly automobile film according to claim 1, characterized in that: The microcapsules in the bio-based polyurethane coating layer are distributed at equal intervals, and the microcapsules are made of polylactic acid material.

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