Anti-corrosion protective film for metal products

Abstract

The utility model relates to the technical field of anti-corrosion protective films for metal products, and provides an anti-corrosion protective film for metal products, which comprises a metal product body shell, and a composite protective film layer is arranged on the outer surface of the metal product body shell. The composite protective film layer specifically comprises an inner side protective layer distributed on the surface of a shell of the metal product body, an adhesion layer is arranged on the outer side of the inner side protective layer, an isolation layer is arranged on the outer side of the adhesion layer, a reinforcing layer is arranged on the outer side of the isolation layer, and an outer side protective layer is arranged on the outer side of the reinforcing layer. The anti-corrosion protective film for the metal product not only has an excellent anti-corrosion effect, but also has excellent fitting property, air tightness, mechanical strength, weather resistance, long-term effect and the like, and provides all-around guarantee for protection of the metal product.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-corrosion protective films for metal products, in particular to an anti-corrosion protective film for metal products. Background Art

[0002] In the field of metal product protection, there has long been a demand for anti-corrosion protection of metal products. Traditional metal protection methods include surface coating with anti-corrosion paint, hot-dip galvanizing, electroplating, etc. Although these methods can provide anti-corrosion effects to a certain extent, there are still some shortcomings:

[0003] Limitations in anti-corrosion performance: The anti-corrosion performance of some existing anti-corrosion protective films is limited and cannot effectively prevent the metal surface from contacting environmental factors such as moisture and oxygen. Long-term use may still be affected by corrosion.

[0004] Poor adhesion: Some anti-corrosion protective films have difficulty in adhering to metal surfaces, which can easily produce bubbles or leave gaps, causing partial failure of the anti-corrosion film and affecting the overall protective effect.

[0005] Insufficient weather resistance: Some anti-corrosion protective films have poor weather resistance when exposed to natural environments such as ultraviolet rays and rain for a long time, and are prone to aging, cracking or losing their original protective functions.

[0006] Therefore, this invention proposes a kind of anti-corrosion protective film for metal products to solve the above problems. Utility Model Content

[0007] In order to overcome the defects of the prior art, the utility model aims to provide an anti-corrosion protective film for metal products.

[0008] To achieve the above object, the technical solution of the utility model is implemented as follows: an anti-corrosion protective film for metal products, comprising a metal product body shell, wherein the outer surface of the metal product body shell is provided with a composite protective film layer;

[0009] The composite protective film layer specifically comprises:

[0010] An inner protective layer is distributed on the outer surface of the metal product body, an adhesive layer is arranged on the outer side of the inner protective layer, an isolation layer is arranged on the outer side of the adhesive layer, a reinforcement layer is arranged on the outer side of the isolation layer, and an outer protective layer is arranged on the outer side of the reinforcement layer.

[0011] As a preferred technical solution of the utility model, the inner protective layer is composed of a polyethylene material containing a VCI compound.

[0012] As a preferred technical solution of the utility model, the adhesive layer is composed of self-adhesive acrylic glue.

[0013] As a preferred technical solution of the present utility model, the isolation layer is made of polyvinylidene chloride material.

[0014] As a preferred technical solution of the present utility model, the reinforcement layer is composed of polyester fabric.

[0015] As a preferred technical solution of the present utility model, the outer protective layer is made of weather-resistant polyethylene material.

[0016] As a preferred technical solution of the utility model, the inner protective layer, the adhesion layer, the isolation layer, the reinforcement layer and the outer protective layer are compounded into one by co-extrusion, lamination or hot pressing process.

[0017] As a preferred technical solution of the utility model, the surface of the outer protective layer is also coated with a layer of light stabilizer or antioxidant.

[0018] The beneficial effects of the utility model are embodied in:

[0019] Effective anti-corrosion protection: The inner protective layer is made of polyethylene material containing VCI compounds, which releases VCI compounds to form a protective gas environment, prevent moisture and oxygen from contacting the metal surface, effectively prevent the occurrence of corrosion reactions, and protect metal products from corrosion.

[0020] Good fit and stability: The adhesive layer uses self-adhesive acrylic glue to ensure that the anti-corrosion protective film fits tightly to the metal surface without leaving any gaps, while maintaining stickiness under different conditions, ensuring that it will not loosen or fall off during long-term transportation and storage.

[0021] Excellent air tightness and waterproofness: The isolation layer is made of PVDC material, which has excellent air and water barrier properties, effectively blocking the penetration of external water vapor and oxygen, protecting the underlying material from moisture and corrosive gases, and enhancing the protective effect.

[0022] Provide additional mechanical strength: The reinforcement layer uses polyester PET fabric to provide additional mechanical strength to resist external impact and tearing, ensuring that the protective film will not be damaged during handling and use, ensuring physical integrity.

[0023] Weather resistance and long-term effectiveness: The outer protective layer is made of weather-resistant polyethylene material and is coated with light stabilizers or antioxidants to effectively resist erosion by ultraviolet rays, rain and other climatic factors, extend the service life of the protective film and maintain long-term stability.

[0024] In summary, this anti-corrosion protective film for metal products not only has excellent anti-corrosion effects, but also performs well in terms of fit, air tightness, mechanical strength, weather resistance and long-term effectiveness, providing all-round protection for metal products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In the attached picture:

[0026] Figure 1 It is a structural schematic diagram of the utility model;

[0027] Figure 2 This is a schematic diagram of the composite protective film layer structure of the utility model;

[0028] Figure 3 This is a diagram of explosion separation of the composite protective film layer of the utility model;

[0029] Description of reference numerals:

[0030] 1. Metal product body shell; 2. Composite protective film layer;

[0031] 21. Inner protective layer; 22. Adhesion layer; 23. Isolation layer; 24. Reinforcement layer; 25. Outer protective layer. DETAILED DESCRIPTION

[0032] The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0035] Please refer to the instruction manual Figure 1-Figure 3 The utility model provides an anti-corrosion protective film for metal products, comprising a metal product body shell 1, wherein the outer surface of the metal product body shell 1 is provided with a composite protective film layer 2;

[0036] The composite protective film layer specifically comprises:

[0037] An inner protective layer 21 is distributed on the surface of the metal product body shell 1, an adhesive layer 22 is arranged on the outer side of the inner protective layer 21, an isolation layer 23 is arranged on the outer side of the adhesion layer 22, a reinforcement layer 24 is arranged on the outer side of the isolation layer 23, and an outer protective layer 25 is arranged on the outer side of the reinforcement layer 24.

[0038] Furthermore, the inner protective layer 21 is made of polyethylene PE material containing VCI compounds, which forms a protective gas environment by releasing VCI compounds, surrounds the metal surface, effectively blocks the contact between moisture and oxygen and the metal surface, and thus prevents the occurrence of corrosion reactions. This polyethylene material also has good flexibility and chemical resistance, ensuring stable chemical release performance in extreme environments.

[0039] Furthermore, the adhesive layer 22 is composed of a self-adhesive acrylic adhesive, and the adhesive layer 22 is designed to enhance the adhesion of the entire anti-corrosion protective film, ensuring that the anti-corrosion film can be closely attached to the metal surface without leaving any gaps. This self-adhesive acrylic adhesive layer can maintain its viscosity under different temperature and humidity conditions, ensuring that the anti-corrosion protective film will not loosen or fall off during long-term transportation and storage.

[0040] Furthermore, the isolation layer 23 is made of polyvinylidene chloride (PVDC) material, which has excellent air barrier and water barrier properties, effectively blocking the penetration of external water vapor and oxygen, thereby protecting the underlying layer from moisture and corrosive gases. In addition, the use of PVDC material enhances the stability of the entire protective structure and has high resistance to chemical solvents and greases.

[0041] Furthermore, the reinforcing layer 24 is made of polyester PET fabric, which not only provides additional mechanical strength to resist external impact and tearing, but also the high heat resistance of the PET material ensures that the protective film will not deform or melt in a high temperature environment. This layer is designed to ensure the physical integrity of the protective film even if it encounters severe friction or stretching during transportation and use.

[0042] Furthermore, the outer protective layer 25 is made of weather-resistant polyethylene PE material, which can effectively resist the erosion of ultraviolet rays, rain and other climate factors, and protect the inner layer material from environmental factors. In addition, the surface treatment with light stabilizer or antioxidant enhances the durability of the material, prevents the aging of the material due to long-term exposure to the external environment, and ensures the long-term effectiveness and stability of the protective film.

[0043] Furthermore, the inner protective layer 21, the adhesive layer 22, the isolation layer 23, the reinforcement layer 24 and the outer protective layer 25 are composited into one by co-extrusion, lamination or hot pressing process;

[0044] Among them, the entire anti-corrosion protective film is compounded into one by co-extrusion, lamination or hot pressing process. This process not only ensures the close bonding between the layers of materials and improves the overall protective effect, but also realizes efficient production and reduces costs.

[0045] Furthermore, the surface of the outer protective layer 25 is also coated with a layer of light stabilizer or antioxidant, which can effectively prevent the material from aging and oxidation due to long-term exposure to ultraviolet rays and oxygen in the external environment, further extending the service life of the protective film.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0047] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-corrosion protective film for metal products, comprising a metal product body shell (1), characterized in that: The outer surface of the metal product body shell (1) is provided with a composite protective film layer (2); The composite protective film layer specifically comprises: An inner protective layer (21) is distributed on the surface of the metal product body shell (1), an adhesive layer (22) is arranged on the outer side of the inner protective layer (21), an isolation layer (23) is arranged on the outer side of the adhesion layer (22), a reinforcement layer (24) is arranged on the outer side of the isolation layer (23), and an outer protective layer (25) is arranged on the outer side of the reinforcement layer (24).

2. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The inner protective layer (21) is made of polyethylene (PE) material containing VCI compounds.

3. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The adhesive layer (22) is made of acrylic glue with self-adhesiveness.

4. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The isolation layer (23) is made of polyvinylidene chloride (PVDC) material.

5. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The reinforcing layer (24) is made of polyester (PET) fabric.

6. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The outer protective layer (25) is made of weather-resistant polyethylene (PE) material.

7. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The inner protective layer (21), the adhesive layer (22), the isolation layer (23), the reinforcement layer (24) and the outer protective layer (25) are composited into one body through co-extrusion, lamination or hot pressing process.

8. The anti-corrosion protective film for metal products according to claim 1, characterized in that: The surface of the outer protective layer (25) is also coated with a layer of light stabilizer or antioxidant.

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