A high porosity high strength polyethylene separator

Abstract

The utility model discloses a kind of high porosity high-strength polyethylene separators belong to polyethylene separator technical field, its technical scheme main points include polyethylene separator structure, the polyethylene separator structure includes base layer, the surface of the base layer is provided with porosity reinforcing layer, the surface of the porosity reinforcing layer is provided with reinforcing layer, the surface of the reinforcing layer is provided with scratch-proof layer, the surface of the scratch-proof layer is provided with wear layer, solve the polyethylene separator in use, most lack effective reinforcing structure, deformation, breakage when bearing external force, it is inconvenient to meet high-strength use demand, and emphasize high-strength separator, often due to compact structure leads to porosity lower, difficult to meet fluid transmission, material exchange and other functional requirements, inconvenient for user to use.

Description

Technical Field

[0001] This utility model relates to the field of polyethylene partition technology, and in particular to a polyethylene partition with high porosity and high strength. Background Technology

[0002] Polyethylene separators are sheet or plate-like materials made primarily of polyethylene through processes such as extrusion, blow molding, or molding. Their core characteristic lies in utilizing the chemical stability and physical properties of the polyethylene molecular structure to separate spaces, substances, or components in different scenarios, preventing mutual interference, contact, or mixing. They are widely used in fields such as batteries, chemicals, construction, and packaging. The specific form and performance can be adjusted according to application requirements by modifying the raw material formulation and processing technology, but polyethylene always serves as the base material for separation.

[0003] Currently, the surface of the battery separator used in lead-acid batteries is relatively flat. Those with anti-slip textures mostly use unidirectional straight strips with raised or concave textures. However, they provide little friction and are prone to slipping and misalignment during assembly, which is inconvenient for assembly operations.

[0004] An existing patent (publication number: CN215377622U) discloses a polyethylene separator for lead-acid batteries, including a separator body. The surface of the separator body is provided with a first damping strip, a second damping strip, and a third damping strip. The first, second, and third damping strips are distributed from the center of the separator body surface to the edge, and the length of the second damping strip is less than that of the third damping strip but greater than that of the first damping strip. By setting the first, second, and third damping strips of unequal length on the surface of the separator body, and by setting the first, second, and third damping strips with hollow structures and supporting grooves for support, the friction of the separator body surface is improved in both the transverse and longitudinal directions through the raised texture structure. This achieves the effect of improving the friction during contact, making it less prone to slippage and misalignment during assembly, thus facilitating assembly and improving efficiency, enhancing processing efficiency, and ensuring the stability of the battery structure.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, most existing polyethylene partitions lack effective reinforcement structures during use, making them prone to deformation and damage when subjected to external forces. This makes them unsuitable for high-strength applications. On the other hand, partitions that emphasize high strength often have low porosity due to their dense structure, making it difficult to meet the functional requirements of fluid transport and material exchange, and thus inconvenient for users.

[0006] Therefore, a high-porosity, high-strength polyethylene partition is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a high-porosity, high-strength polyethylene partition, which can solve the problems that existing polyethylene partitions mostly lack effective reinforcement structures, are prone to deformation and damage when subjected to external forces, and are not convenient to meet the requirements of high-strength use. On the other hand, partitions that emphasize high strength often have low porosity due to their dense structure, which makes it difficult to meet the functional requirements of fluid transmission and material exchange, and are inconvenient for users.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-porosity, high-strength polyethylene partition, comprising a polyethylene partition structure, wherein the polyethylene partition structure comprises a base layer, a porosity reinforcing layer is disposed on the surface of the base layer, a reinforcing layer is disposed on the surface of the porosity reinforcing layer, an anti-scratch layer is disposed on the surface of the reinforcing layer, and a wear-resistant layer is disposed on the surface of the anti-scratch layer.

[0009] Preferably, the base layer is made of high-density polyethylene and the thickness of the base layer is 0.3-0.5 mm.

[0010] Preferably, the porosity-enhancing layer is made of polyvinylidene fluoride, the thickness of the porosity-enhancing layer is 0.05-0.1 mm, and the porosity of the porosity-enhancing layer is 40%-60%.

[0011] Preferably, the reinforcing layer is made of aramid fiber, and the thickness of the reinforcing layer is 0.05-0.08 mm.

[0012] Preferably, the scratch-resistant layer is made of boron carbide ceramic, and the thickness of the scratch-resistant layer is 0.02-0.05 mm.

[0013] Preferably, the wear-resistant layer is made of polytetrafluoroethylene, and the thickness of the wear-resistant layer is 0.03-0.08 mm.

[0014] Preferably, the overall thickness of the polyethylene partition structure is 0.52-0.81 mm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This application utilizes a polyethylene partition structure. During use, the base layer provides stable foundation support, while the porosity enhancement layer effectively increases the overall porosity of the polyethylene partition structure, creating conditions for efficient fluid or material transport. The reinforcement layer enhances the mechanical properties of the polyethylene partition structure, giving it excellent resistance to deformation and impact, meeting the requirements of high-strength applications. The anti-scratch layer and wear-resistant layer work closely together to resist external friction and scratches, reducing surface wear and extending the service life of the polyethylene partition structure. Furthermore, the base layer and porosity enhancement layer are connected through a hot-pressing composite process, the porosity enhancement layer and reinforcement layer are connected using a low-penetration adhesive process, the reinforcement layer and anti-scratch layer are connected through a plasma spraying process, and the anti-scratch layer and wear-resistant layer are connected using a coating and curing process. This ensures the interlayer bonding strength while avoiding damage to the pore structure of the porosity enhancement layer, achieving synergistic optimization of high porosity and high strength, and improving the comprehensive performance and application adaptability of the polyethylene partition structure. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the high-porosity, high-strength polyethylene partition of this utility model;

[0018] Figure 2 This is a structural diagram of the base layer of this utility model;

[0019] Figure 3 This is a structural diagram of the wear-resistant layer of this utility model.

[0020] In the figure, 1 is the polyethylene partition structure; 101 is the base layer; 102 is the porosity enhancement layer; 103 is the reinforcement layer; 104 is the scratch-resistant layer; and 105 is the wear-resistant layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 The present invention provides the following technical solution:

[0023] A high-porosity, high-strength polyethylene partition includes a polyethylene partition structure 1. The polyethylene partition structure 1 includes a base layer 101, a porosity reinforcing layer 102 disposed on the surface of the base layer 101, a reinforcing layer 103 disposed on the surface of the porosity reinforcing layer 102, a scratch-resistant layer 104 disposed on the surface of the reinforcing layer 103, and a wear-resistant layer 105 disposed on the surface of the scratch-resistant layer 104.

[0024] In this embodiment: by setting up a polyethylene partition structure 1, a stable foundation support is provided by the base layer 101 during use. The porosity enhancement layer 102 effectively improves the overall porosity of the polyethylene partition structure 1, creating conditions for efficient fluid or substance transport. The reinforcement layer 103 enhances the mechanical properties of the polyethylene partition structure 1, giving it excellent resistance to deformation and impact, meeting the requirements for high-strength use. The anti-scratch layer 104 and the wear-resistant layer 105 work closely together to resist external friction and scratches, reduce surface wear, and extend the service life of the polyethylene partition structure 1. Furthermore, the base layer 101 is connected to the porosity enhancement layer 102 through a hot-pressing composite process, the porosity enhancement layer 102 is connected to the reinforcement layer 103 through a low-penetration adhesive process, the reinforcement layer 103 is connected to the anti-scratch layer 104 through a plasma spraying process, and the anti-scratch layer 104 is connected to the wear-resistant layer 105 through a coating and curing process. While ensuring the interlayer connection strength, this process avoids damaging the pore structure of the porosity enhancement layer 102, achieving synergistic optimization of high porosity and high strength, and improving the overall performance and application adaptability of the polyethylene partition structure 1.

[0025] Specifically, such as Figure 2 As shown, the base layer 101 is made of high-density polyethylene, and the thickness of the base layer 101 is 0.3-0.5mm.

[0026] Specifically, such as Figure 2 As shown, the porosity enhancement layer 102 is made of polyvinylidene fluoride, the thickness of the porosity enhancement layer 102 is 0.05-0.1 mm, and the porosity of the porosity enhancement layer 102 is 40%-60%.

[0027] Specifically, such as Figure 2 As shown, the reinforcing layer 103 is made of aramid fiber, and the thickness of the reinforcing layer 103 is 0.05-0.08mm.

[0028] In this embodiment: the base layer 101 is made of high-density polyethylene. Due to its high crystallinity and rigidity, the base layer 101 provides a stable support skeleton for the polyethylene partition structure 1, ensuring the overall structural shape. The polyvinylidene fluoride porosity reinforcement layer 102 has a high porosity of 40%-60%, which efficiently promotes fluid permeation and material exchange. At the same time, the chemical stability of polyvinylidene fluoride itself can prevent pore blockage. The aramid fiber reinforcement layer 103, through its high strength, improves the tensile and bending resistance of the polyethylene partition structure 1, effectively resisting external impacts, so that the polyethylene partition structure 1 still maintains excellent mechanical properties under high porosity.

[0029] Specifically, such as Figure 3 As shown, the scratch-resistant layer 104 is made of boron carbide ceramic, and its thickness is 0.02-0.05mm.

[0030] Specifically, such as Figure 3 As shown, the wear-resistant layer 105 is made of polytetrafluoroethylene, and the thickness of the wear-resistant layer 105 is 0.03-0.08mm.

[0031] In this embodiment: the anti-scratch layer 104 is made of boron carbide ceramic. Due to its ultra-high hardness, the anti-scratch layer 104 forms a dense protective barrier, effectively resisting scratches from sharp objects and avoiding surface damage. The polytetrafluoroethylene wear-resistant layer 105 utilizes its low coefficient of friction and self-lubricating properties to significantly reduce the wear rate of the polyethylene partition structure 1 in frequent contact scenarios. At the same time, its chemical inertness can resist the erosion of various media, which helps to extend the surface durability of the polyethylene partition structure 1 and maintain functional stability.

[0032] Specifically, such as Figure 2 As shown, the overall thickness of the polyethylene partition structure 1 is 0.52-0.81 mm.

[0033] In this embodiment, the overall thickness of the polyethylene partition structure 1 is 0.52-0.81mm. While ensuring the functional integrity of the base layer 101, porosity enhancement layer 102, reinforcement layer 103, scratch-resistant layer 104 and wear-resistant layer 105, the lightweight requirement is also taken into account, making the polyethylene partition structure 1 suitable for various space-constrained scenarios.

[0034] Working Principle: During the use of the polyethylene partition structure 1, the polyethylene partition structure 1 is installed. During use, the base layer 101 provides stable foundation support. The porosity enhancement layer 102 effectively increases the overall porosity of the polyethylene partition structure 1, creating conditions for efficient fluid or substance transport. The reinforcement layer 103 enhances the mechanical properties of the polyethylene partition structure 1, giving it excellent resistance to deformation and impact, meeting the requirements for high-strength use. The anti-scratch layer 104 and the wear-resistant layer 105 work closely together to resist external friction and scratches, reducing surface wear and extending the lifespan of the polyethylene partition structure. In addition to ensuring the service life of the structure 1, the base layer 101 and the porosity enhancement layer 102 are connected by a hot-pressing composite process, the porosity enhancement layer 102 and the reinforcement layer 103 are connected by a low-penetration adhesive process, the reinforcement layer 103 and the anti-scratch layer 104 are connected by a plasma spraying process, and the anti-scratch layer 104 and the wear-resistant layer 105 are connected by a coating and curing process. While ensuring the interlayer connection strength, the pore structure of the porosity enhancement layer 102 is avoided from being damaged, thus achieving synergistic optimization of high porosity and high strength, and improving the comprehensive performance and application adaptability of the polyethylene partition structure 1.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-porosity, high-strength polyethylene partition, comprising a polyethylene partition structure (1), characterized in that: The polyethylene partition structure (1) includes a base layer (101), a porosity enhancement layer (102) is provided on the surface of the base layer (101), a reinforcement layer (103) is provided on the surface of the porosity enhancement layer (102), an anti-scratch layer (104) is provided on the surface of the reinforcement layer (103), and a wear-resistant layer (105) is provided on the surface of the anti-scratch layer (104).

2. The high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The base layer (101) is made of high-density polyethylene and has a thickness of 0.3-0.5 mm.

3. The high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The porosity enhancement layer (102) is made of polyvinylidene fluoride, the thickness of the porosity enhancement layer (102) is 0.05-0.1 mm, and the porosity of the porosity enhancement layer (102) is 40%-60%.

4. The high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The reinforcing layer (103) is made of aramid fiber and has a thickness of 0.05-0.08 mm.

5. A high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The anti-scratch layer (104) is made of boron carbide ceramic, and the thickness of the anti-scratch layer (104) is 0.02-0.05mm.

6. The high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The wear-resistant layer (105) is made of polytetrafluoroethylene, and the thickness of the wear-resistant layer (105) is 0.03-0.08 mm.

7. A high-porosity, high-strength polyethylene partition according to claim 1, characterized in that: The overall thickness of the polyethylene partition structure (1) is 0.52-0.81 mm.

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