CN213012666U - Protective film for isolating ultraviolet metal piece - Google Patents

Abstract

The utility model discloses an isolated ultraviolet metalwork protection film, including TPU film substrate layer and self-repairing layer, still include the hydrophobic top layer of automatically cleaning, the self-repairing layer sets up between hydrophobic top layer of automatically cleaning and TPU film substrate layer. The TPU film substrate layer in the ultraviolet-isolated metal piece protective film has super-strong stretching and high resilience, and the self-cleaning hydrophobic surface layer can enable rainwater to quickly roll off and slow down the acid rain corrosion speed; the self-repairing coating is arranged between the self-cleaning hydrophobic surface layer and the TPU film substrate layer, and scratches can be automatically repaired within a period of time; the protective film for isolating the ultraviolet metal part has long service life and can effectively protect the paint surface of the automobile.

Description

Protective film for isolating ultraviolet metal piece

Technical Field

The utility model relates to a metalwork protection technology field, concretely relates to isolated ultraviolet metalwork protection film.

Background

One of the main application fields of the ultraviolet-isolating metal piece protective film is the automobile industry, and the ultraviolet-isolating metal piece protective film is also used as an automobile body invisible protective garment, has good toughness, acid rain resistance, scratch resistance and oxidation resistance, and can be stably attached to the surface of automobile paint to isolate the automobile paint from air. After the paint surface protective film is torn off, the original factory vehicle paint is not damaged, and glue is not left.

The automobile surface protection film in the prior art is as described in CN107323055A, and comprises a PE protective layer, a self-repairing coating, an antifouling layer, an elastic TPU layer, an adhesive layer, a release layer and a PET layer which are sequentially attached from top to bottom. Wherein the antifouling layer comprises the electric resistant particles, the pigment and the nano carbon black. The addition of particulate matter is not conducive to maintaining the transparency and transmittance of the protective film, and the anti-fouling layer is sandwiched between the self-healing layer and the elastic TPU layer, with limited anti-fouling capability. The PE protective layer on the surface layer is sensitive to environmental stress and poor in thermal aging resistance, and the service life of the protective film on the surface of the automobile is seriously influenced.

Therefore, there is a need for an improved structure of the protective film for uv blocking metal members in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the defect that exists among the prior art, provide an isolated ultraviolet metalwork protection film, automatically cleaning hydrophobic top layer can slow down acid rain corrosion rate, and the mar can be restoreed automatically on the self-repairing layer, protection TPU film substrate layer.

Realize above-mentioned technological effect, the utility model discloses a technical scheme does: the utility model provides an isolated ultraviolet metalwork protection film, includes TPU film substrate layer, self-repairing layer and installation glue film, the installation glue film sets up in one side of TPU film substrate layer, the self-repairing layer set up in the opposite side of TPU film substrate layer still includes the hydrophobic top layer of automatically cleaning, the self-repairing layer set up in between hydrophobic top layer of automatically cleaning and the TPU film substrate layer.

The preferable technical scheme is that the self-cleaning hydrophobic surface layer is connected with the self-repairing layer in a laminated mode.

The preferable technical scheme is that the mounting adhesive layer is an anti-ultraviolet adhesive layer.

The preferable technical scheme is that the thermal insulation layer is further included and is arranged between the self-repairing layer and the TPU film base material layer.

The preferable technical scheme is that the heat insulation layer is arranged between the self-repairing layer and the TPU film base material layer and/or between the TPU film base material layer and the mounting glue layer.

The preferable technical scheme is that the anti-ultraviolet glue layer is an anti-ultraviolet heat insulation glue layer.

The utility model has the advantages and the beneficial effects that:

the TPU film substrate layer in the ultraviolet-isolated metal piece protective film has super-strong stretching and high resilience, and the self-cleaning hydrophobic surface layer can enable rainwater to quickly roll off and slow down the acid rain corrosion speed; the self-repairing coating is arranged between the self-cleaning hydrophobic surface layer and the TPU film substrate layer, and scratches can be automatically repaired within a period of time;

the protective film for isolating the ultraviolet metal part has long service life and can effectively protect the paint surface of the automobile.

Drawings

FIG. 1 is a schematic structural diagram of a UV blocking protective film for a metal member according to example 1;

FIG. 2 is a schematic structural diagram of a UV blocking protective film of the metal member of example 2;

FIG. 3 is a schematic structural diagram of a UV blocking protective film of the UV blocking metal of example 3;

in the figure: 1. self-cleaning hydrophobic surface layer; 2. a self-healing layer; 3. a TPU film substrate layer; 4. Installing a glue layer; 5. an insulating layer.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Self-repairing layer

The material of the self-repairing layer needs to be matched with the toughness and elasticity of the TPU film substrate layer, and the preferable thermosetting acrylic acid modified polyurethane resin has good word repairing capability, can brighten and increase the permeability, and improves the brightness of the vehicle paint.

The self-cleaning hydrophobic surface layer can be a film with a lotus leaf effect, or a super-hydrophobic coating prepared by coating a solution containing a hydrophobic material and a substrate on the surface of the substrate, for example, a heptadecafluorodecyltrimethoxysilane-modified nano calcium carbonate and a polyethylene solution are mixed and coated on the surface of the film.

Anti-ultraviolet adhesive layer

The anti-ultraviolet glue layer takes glue as a base material, and ultraviolet absorbers such as benzophenones and benzotriazole are added into the anti-ultraviolet glue layer. Furthermore, the anti-ultraviolet glue layer is an anti-ultraviolet heat insulation glue layer. The adhesive containing the ultraviolet absorber is added with heat insulation materials such as indium tin oxide and/or oxide, and the adhesive layer is endowed with good heat insulation performance. The anti-ultraviolet adhesive layer can reduce ultraviolet rays incident to the surface of the automobile paint, slow down the aging speed of the paint surface and prolong the service life of the automobile finish paint.

Thermal insulation layer

The heat insulating layer may be a film layer containing the heat insulating material such as indium tin oxide and/or oxide, or may be a phase change material coating layer having a heat insulating function.

Specifically, the surface of the mounting adhesive layer is further provided with a release layer in an adhering mode, and the release layer is used for protecting the mounting adhesive layer before production, transportation and use.

Example 1

As shown in fig. 1, example 1 includes a self-cleaning hydrophobic surface layer 1, a self-repairing layer 2, a TPU film base material layer 3, and a mounting adhesive layer 4, which are laminated and connected from outside to inside. The mounting adhesive layer 4 is used for bonding with automobile finish.

The mounting adhesive layer 4 of example 1 is an ultraviolet resistant adhesive layer.

As an improved scheme, the anti-ultraviolet glue layer is an anti-ultraviolet heat insulation glue layer.

Example 2

As shown in fig. 2, embodiment 2 is based on embodiment 1, and is different from embodiment 1 in that a heat insulating layer 5 is further included, and the heat insulating layer 5 is disposed between the self-repair layer 2 and the TPU film base material layer 3.

Example 3

As shown in fig. 3, example 3 is based on example 2, except that a thermal insulation layer is further disposed between the TPU film base material layer and the mounting adhesive layer, i.e., example 3 includes two thermal insulation layers.

In the embodiments 1 to 3, the self-repairing layer 2 and the TPU film substrate layer 3 perform double protection, and even if the scratch is deep into the TPU film substrate layer 3, the scratch in the TPU film substrate layer 3 can be closed because the self-repairing layer 2 can be automatically repaired within a certain time, and the use of the protective film is not affected.

In the prior art, some invisible car body protective clothing still has the phenomenon of film removal and glue retention, and one reason of the phenomenon is that components in a film, such as a plasticizer, and glue of a mounting glue layer are subjected to chemical reaction under the condition of high-temperature illumination, and the long-time reaction can cause the change of the glue material, so that the glue is degummed. In the embodiment 1-2, the TPU film is directly connected with the mounting adhesive layer, and no plasticizer is contained in the TPU material; in the embodiment 2 and the embodiment 3, on the basis of the embodiment 1, the heat insulation layer is added, the high temperature resistance of the film is improved, and the problems of film removal and glue retention are improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides an isolated ultraviolet metalwork protection film, includes TPU film substrate layer, self-repairing layer and installation glue film, its characterized in that, the installation glue film sets up in one side of TPU film substrate layer, the self-repairing layer set up in the opposite side of TPU film substrate layer still includes the hydrophobic top layer of automatically cleaning, the self-repairing layer set up in between hydrophobic top layer of automatically cleaning and the TPU film substrate layer.

2. The ultraviolet metal article insulating protective film of claim 1, wherein the self-cleaning hydrophobic top layer is in laminated connection with a self-healing layer.

3. The UV blocking metallic article protective film of claim 1, wherein the mounting adhesive layer is a UV resistant adhesive layer.

4. The ultraviolet metal piece isolating protective film according to claim 1, further comprising a thermal insulation layer disposed between the self-repair layer and the TPU thin film substrate layer.

5. The ultraviolet metal piece isolating protective film according to claim 1, further comprising a thermal insulation layer disposed between the self-repair layer and the TPU film substrate layer and/or between the TPU film substrate layer and the mounting glue layer.

6. The UV blocking protective film according to claim 3, wherein the UV blocking glue layer is a UV blocking glue layer.

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