Rust-proof wrapping film
Through the anti-rust wrap film with a multi-layer structure, the mixing of metallocene polyethylene and linear low-density polyethylene is solved, and the anti-rust wrap film with high strength and impact resistance is achieved, reducing production costs.
Patent Information
- Application Number
- CN202421942383.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-10
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-10
AI Technical Summary
The tensile strength and tear resistance of the existing anti-rust wrap film are insufficient, which leads to easy rupture during transportation and cannot effectively protect metal products.
A multi-layer structure of an anti-rust layer, a metallocene polyethylene layer, a first metallocene mixed layer, a linear low-density polyethylene layer and a second metallocene mixed layer is adopted to form an anti-rust wrap film through hot pressing bonding, and the mixture of metallocene polyethylene and linear low-density polyethylene is used to improve tensile strength and impact resistance.
The anti-rust wrap film has achieved stress crack resistance, good tensile strength, impact resistance and tear resistance, which reduces production costs and improves market competitiveness.
Smart Images
Figure CN223116007U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an anti-rust winding film.
Background Art
[0002] In order to prevent the rusting of metal products caused by contact with surrounding corrosive media, rust prevention treatment is usually carried out by winding an anti-rust winding film on the surface of the metal products, so as to protect the metal products. The commonly used anti-rust winding film on the market usually includes a layer of PE winding film and anti-rust films covering both the front and back sides of the PE winding film. Although it can play a certain anti-rust role, the tensile strength and tear resistance of this anti-rust winding film are relatively low. When the anti-rust winding film is wound and wrapped around the outside of an object, the objects may collide with each other during transportation, resulting in the stretching of the winding film at the collision point. Due to the poor tensile performance and puncture resistance of the existing winding film, the winding film at the collision point may crack under a large tensile force, making it difficult to ensure the integrity of the object.
[0003] Therefore, the present utility model is precisely produced based on the above deficiencies.
Content of the Utility Model
[0004] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide an anti-rust winding film with a simple structure and good tensile strength.
[0005] The present utility model is realized through the following technical solutions:
[0006] An anti-rust winding film, characterized in that: it includes an anti-rust layer 1, one side of the anti-rust layer 1 is provided with a metallocene polyethylene layer 2, the side of the metallocene polyethylene layer 2 away from the anti-rust layer 1 is provided with a first metallocene mixed layer 3 formed by mixing linear low-density polyethylene and a first metallocene polyethylene, the side of the first metallocene mixed layer 3 away from the metallocene polyethylene layer 2 is provided with a linear low-density polyethylene layer 4, and the side of the linear low-density polyethylene layer 4 away from the first metallocene mixed layer 3 is provided with a second metallocene mixed layer 5 formed by mixing linear low-density polyethylene and a second metallocene polyethylene.
[0007] The anti-rust winding film as described above, characterized in that: the anti-rust layer 1 is made of a mixture of polyethylene and an anti-rust agent.
[0008] The anti-rust winding film as described above, characterized in that: the metallocene polyethylene layer 2 is made of MVLDPE 2010.
[0009] The anti-rust winding film as described above, characterized in that: the first metallocene polyethylene is MVLDPE 3518.
[0010] The anti-rust winding film as described above is characterized in that: the mixing ratio of linear low density polyethylene and the first metallocene polyethylene in the first metallocene mixed layer 3 is 1:1.
[0011] The anti-rust winding film as described above is characterized in that: the linear low density polyethylene layer 4 is made by mixing linear low density polyethylene and octane linear low density polyethylene.
[0012] The anti-rust winding film as described above is characterized in that: the mixing ratio of linear low density polyethylene and octane linear low density polyethylene in the first metallocene mixed layer 3 is 1:1.
[0013] The anti-rust winding film as described above is characterized in that: the second metallocene polyethylene is MLLDPE 5220G.
[0014] The anti-rust winding film as described above is characterized in that: the mixing ratio of linear low density polyethylene and the second metallocene polyethylene in the second metallocene mixed layer 5 is 1:1.
[0015] The anti-rust winding film as described above is characterized in that: the anti-rust layer 1, metallocene polyethylene layer 2, first metallocene mixed layer 3, linear low density polyethylene layer 4 and second metallocene mixed layer 5 are hot-pressed and bonded together.
[0016] Compared with the prior art, the present utility model has the following advantages:
[0017] 1. By sequentially stacking and cooperating the anti-rust layer, metallocene polyethylene layer, first metallocene mixed layer, linear low density polyethylene layer and second metallocene mixed layer, the anti-rust winding film of the present utility model has good stress cracking resistance, tensile strength, impact resistance, tear resistance and other properties. Moreover, while adding metallocene polyethylene in the first metallocene mixed layer and the second metallocene mixed layer to ensure better elastic tension in the middle section of the film, the production cost is reduced by mixing linear low density polyethylene, making the product have higher market competitiveness.
Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the present utility model.
Detailed Embodiment
[0019] The present utility model will be further described below in conjunction with the drawings:
[0020] As Figure 1As shown in the figure, a rust-proof winding film includes a rust-proof layer 1. On one side of the rust-proof layer 1, there is a metallocene polyethylene layer 2. On the side of the metallocene polyethylene layer 2 away from the rust-proof layer 1, there is a first metallocene mixed layer 3 made of linear low-density polyethylene and the first metallocene polyethylene. On the side of the first metallocene mixed layer 3 away from the metallocene polyethylene layer 2, there is a linear low-density polyethylene layer 4. On the side of the linear low-density polyethylene layer 4 away from the first metallocene mixed layer 3, there is a second metallocene mixed layer 5 made of linear low-density polyethylene and the second metallocene polyethylene. By sequentially stacking and cooperating the rust-proof layer 1, the metallocene polyethylene layer 2, the first metallocene mixed layer 3, the linear low-density polyethylene layer 4, and the second metallocene mixed layer 5, the rust-proof winding film has good stress crack resistance, good tensile strength, impact resistance, and tear resistance. Moreover, while the first metallocene mixed layer 3 and the second metallocene mixed layer 5 use metallocene polyethylene to ensure better elastic tensile force in the middle section of the film, the production cost is reduced by mixing linear low-density polyethylene, making the product more competitive in the market.
[0021] Specifically, the rust-proof layer 1 is made of a mixture of polyethylene and a rust inhibitor. The rust inhibitor can be a commonly used rust inhibitor on the market, such as VCI vapor-phase rust inhibitor, Zerust brand rust inhibitor, etc. Of course, in actual applications according to requirements, the rust inhibitor can also be added to the metallocene polyethylene layer 2, the first metallocene mixed layer 3, the linear low-density polyethylene layer 4, and the second metallocene mixed layer 5 to make the rust-proof winding film have stronger rust-proof ability.
[0022] Specifically, the metallocene polyethylene layer 2 is made of MVLDPE 2010, and ExxonMobil Enable 2010 can be selected in specific implementations. This metallocene polyethylene layer 2 can enhance the elastic tensile force at the starting section of this winding film, enabling the film to withstand a greater tensile force at the starting section.
[0023] Specifically, the first metallocene polyethylene is MVLDPE 3518, and ExxonMobil Exceed 3518PA can be selected in specific implementations. MVLDPE 3518 can enhance the elastic tensile force in the middle section of this winding film, enabling the film to withstand a greater tensile force in the middle section. In actual applications, the mixing ratio of linear low-density polyethylene and the first metallocene polyethylene in the first metallocene mixed layer 3 is 1:1, which can reduce the production cost while ensuring good tear resistance and puncture resistance.
[0024] Specifically, the linear low-density polyethylene layer 4 is made of a mixture of linear low-density polyethylene and octane linear low-density polyethylene, and has good tensile properties, impact resistance, and environmental stress crack resistance. In actual applications, the mixing ratio of linear low-density polyethylene and octane linear low-density polyethylene in the first metallocene mixed layer 3 is 1:1, which can reduce the production cost while ensuring good tensile properties.
[0025] Specifically, the second metallocene polyethylene is MLLDPE 5220G, and Dow Chemical ELITE5220G can be selected in specific implementations. MLLDPE 5220G can also enhance the elastic tensile force in the middle section of this winding film, enabling the film to withstand a greater tensile force in the middle section. In practical applications, the mixing ratio of linear low-density polyethylene and the second metallocene polyethylene in the second metallocene mixed layer 5 is 1:1, which can reduce production costs while ensuring good tear resistance and puncture resistance.
[0026] In this utility model, the rust-proof layer 1, the metallocene polyethylene layer 2, the first metallocene mixed layer 3, the linear low-density polyethylene layer 4, and the second metallocene mixed layer 5 are hot-pressed and bonded together.
Claims
1. An anti-rust winding film, characterized in that: It includes an anti-rust layer (1), on one side of the anti-rust layer (1) there is a metallocene polyethylene layer (2), on the side of the metallocene polyethylene layer (2) away from the anti-rust layer (1) there is a first metallocene mixed layer (3) formed by mixing linear low-density polyethylene and first metallocene polyethylene, on the side of the first metallocene mixed layer (3) away from the metallocene polyethylene layer (2) there is a linear low-density polyethylene layer (4), and on the side of the linear low-density polyethylene layer (4) away from the first metallocene mixed layer (3) there is a second metallocene mixed layer (5) formed by mixing linear low-density polyethylene and second metallocene polyethylene; the anti-rust layer (1), the metallocene polyethylene layer (2), the first metallocene mixed layer (3), the linear low-density polyethylene layer (4) and the second metallocene mixed layer (5) are thermally pressed and bonded together.
2. The anti-rust winding film according to claim 1, wherein: The metallocene polyethylene layer (2) is made of MVLDPE 2010.
3. The anti-rust winding film according to claim 1, wherein: The first metallocene polyethylene is MVLDPE3518.
4. The anti-rust winding film according to claim 1, characterized in that: The second metallocene polyethylene is MLLDPE5220G.