Air purification film with hydrophobic and scratch-proof functions

Abstract

The utility model belongs to the technical field of air purification membranes, and particularly relates to a hydrophobic scratch-proof air purification membrane, which comprises an outer scratch-proof grid membrane, a buffer structure layer, a filter core layer and an inner support net which are sequentially formed from outside to inside, the edge of the buffer structure layer is flush with the edge of the outer-layer scratch-proof grid film, and the surface, not connected with the buffer structure layer, of the outer-layer scratch-proof grid film is coated with a hydrophobic coating. The design of the buffer structure layer and the outer layer scratch-proof grid film not only improves the scratch resistance of the film, but also keeps good air circulation by optimizing the grid design, and meanwhile, the hydrophobic performance of the film is enhanced by introducing the hydrophobic coating.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification membranes, and particularly relates to an air purification membrane with hydrophobic and scratch-resistant properties. Background Art

[0002] With the increasing prominence of environmental problems, air purification technology has become an important means to improve indoor air quality. As the core component of this technology, the performance of the air purification membrane directly affects the air purification effect and service life. However, traditional air purification membranes often struggle to achieve an ideal balance in terms of scratch resistance, air permeability, waterproofness, and filtration effectiveness.

[0003] Traditional air purification membranes are prone to being scratched by external objects, which not only affects the aesthetics of the membrane but may also lead to a decline in its filtration performance. At the same time, in order to pursue filtration effectiveness, some air purification membranes often sacrifice air permeability, resulting in increased system energy consumption and reduced filtration efficiency. In addition, in a humid environment, the waterproof performance of the membrane is also particularly important because moisture may affect the filtration effect and service life of the membrane. Summary of the Utility Model

[0004] Aiming at the above problems, the purpose of the present utility model is to provide an air purification membrane with hydrophobic and scratch-resistant properties, and solve the problems that traditional air purification membranes are easily scratched, affecting their filtration performance, and in a humid environment, moisture affects the filtration effect and service life of the membrane.

[0005] To achieve the above purpose, the technical solution adopted by the present utility model is: an air purification membrane with hydrophobic and scratch-resistant properties, including an outer scratch-resistant grid membrane, a buffer structure layer, a filtration core layer, and an inner support mesh formed in sequence from outside to inside. The outer scratch-resistant grid membrane is evenly provided with breathable grids. The edge of the buffer structure layer is flush with the edge of the outer scratch-resistant grid membrane. The surface of the outer scratch-resistant grid membrane that does not contact the buffer structure layer is coated with a hydrophobic coating.

[0006] The beneficial effects of the present utility model are: the design of the buffer structure layer and the outer scratch-resistant grid membrane not only improves the scratch resistance of the membrane but also maintains good air permeability through optimized grid design. At the same time, by introducing a hydrophobic coating, the hydrophobic performance of the membrane is enhanced.

[0007] In order to effectively reduce the influence of the buffer structure layer and the outer scratch-resistant grid membrane on the air permeability of the filtration core layer;

[0008] As a further improvement of the above technical solution: the breathable grid is a regular hexagonal groove structure.

[0009] The beneficial effects of this improvement are as follows: The breathable meshes arranged in a hexagonal pattern require the fewest number of sides when covering the same area, thus effectively reducing the area occupied by the mesh edges in the buffer structure layer and the outer scratch-resistant mesh film, and ensuring the air permeability of the filter core layer.

[0010] To effectively ensure the air permeability of the filter core layer;

[0011] As a further improvement to the above technical solution: The horizontal distance between two adjacent breathable meshes is 0.1 - 0.3 mm.

[0012] The beneficial effects of this improvement are as follows: By controlling the diameter of the mesh lines in the buffer structure layer and the outer scratch-resistant mesh film within the range of 0.1 - 0.3 mm, the air permeability and structural stability can be effectively achieved.

[0013] To enable the outer scratch-resistant mesh film to provide effective scratch resistance;

[0014] As a further improvement to the above technical solution: The thickness of the outer scratch-resistant mesh film is 0.05 - 0.15 mm.

[0015] The beneficial effects of this improvement are as follows: By controlling the thickness of the outer scratch-resistant mesh film within the range of 0.05 - 0.15 mm, sufficient scratch resistance can be ensured.

[0016] To enable the buffer structure layer to provide effective buffer support to protect the filter core layer;

[0017] As a further improvement to the above technical solution: The buffer structure layer is a silicone structure with a thickness of 0.1 - 0.2 mm.

[0018] The beneficial effects of this improvement are as follows: The buffer structure layer with a porous design can effectively reduce the impact between the outer layer and the inner layer while maintaining air circulation.

[0019] To ensure the hydrophobic effect of the membrane through the use of a hydrophobic coating without affecting air permeability;

[0020] As a further improvement to the above technical solution: The hydrophobic coating is a polytetrafluoroethylene coating structure with a thickness of 0.02 - 0.05 mm.

[0021] The beneficial effects of this improvement are as follows: The hydrophobic coating can provide good hydrophobic performance, ensuring the waterproof effect without affecting air permeability.

[0022] To effectively ensure the structural strength of the membrane;

[0023] As a further improvement to the above technical solution: The inner support mesh is a polyester fiber mesh structure with a thickness of 0.1 - 0.2 mm and a mesh hole diameter of 0.5 - 1.5 mm.

[0024] The beneficial effects of this improvement are as follows: The inner support net can provide structural support for the whole membrane and enhance the structural stability of the membrane.

[0025] For the parts not involved in this device, they are the same as the prior art or can be implemented using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a sectional view structure diagram of the present utility model;

[0027] Figure 2 It is a structure diagram of the present utility model;

[0028] Figure 3 It is a top view of the present utility model;

[0029] In the figure: 1. Filter core layer; 2. Buffer structure layer; 3. Inner support net; 4. Outer scratch-resistant mesh film; 5. Hydrophobic coating; 6. Ventilation grid. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0031] Embodiment 1:

[0032] As Figure 1As shown in Figure 3, a hydrophobic and scratch-resistant air purification membrane includes an outer scratch-resistant grid membrane 4, a buffer structure layer 2, a filtration core layer 1, and an inner support mesh 3 that are formed in sequence from outside to inside. The outer scratch-resistant grid membrane 4 is evenly provided with ventilation grids 6. The edge of the buffer structure layer 2 is flush with the edge of the outer scratch-resistant grid membrane 4. A hydrophobic coating 5 is coated on the surface of the outer scratch-resistant grid membrane 4 that does not contact the buffer structure layer 2. The design of the buffer structure layer 2 and the outer scratch-resistant grid membrane 4 not only improves the scratch resistance of the membrane but also maintains good air circulation through optimized grid design. At the same time, by introducing the hydrophobic coating 5, the hydrophobic performance of the membrane is enhanced. The ventilation grid 6 is a regular hexagonal groove structure, and the ventilation grids 6 arranged in a hexagonal pattern require the fewest number of sides when covering the same area, thus effectively reducing the area occupied by the grid edges in the buffer structure layer 2 and the outer scratch-resistant grid membrane 4 and ensuring the air circulation of the filtration core layer 1. The horizontal distance between two adjacent ventilation grids 6 is 0.1 - 0.3 mm. By controlling the grid line diameter of the buffer structure layer 2 and the outer scratch-resistant grid membrane 4 within the range of 0.1 - 0.3 mm, effective air circulation and structural stability can be achieved. The thickness of the outer scratch-resistant grid membrane 4 is 0.05 - 0.15 mm. By controlling the thickness of the outer scratch-resistant grid membrane 4 within 0.05 - 0.15 mm, sufficient scratch resistance is ensured. The buffer structure layer 2 is a silicone structure with a thickness of 0.1 - 0.2 mm. The buffer structure layer 2 with a porous design effectively reduces the impact between the outer layer and the inner layer while maintaining air circulation. The hydrophobic coating 5 is a polytetrafluoroethylene coating structure with a thickness of 0.02 - 0.05 mm. The hydrophobic coating 5 can provide good hydrophobic performance, ensuring the waterproof effect and not affecting the air permeability. The inner support mesh 3 is a polyester fiber mesh structure with a thickness of 0.1 - 0.2 mm and a mesh diameter of 0.5 - 1.5 mm. The inner support mesh 3 can provide structural support for the entire membrane and enhance the structural stability of the membrane.

[0033] The working principle of this technical solution is as follows: The design of the outer scratch-resistant grid membrane 4 significantly improves the scratch resistance of the membrane and extends its service life. The ventilation grids 6 opened on the outer scratch-resistant grid membrane 4 ensure the air permeability of the membrane, reduce the system energy consumption, and enable the outer scratch-resistant grid membrane 4 to achieve an effective anti-scratch effect; the hydrophobic coating 5 enhances the hydrophobic performance of the membrane, making the membrane suitable for humid environments; the filtration core layer 1 ensures an efficient particulate interception effect and improves the air quality; the inner support mesh 3 provides stable support for the overall structure and ensures the smoothness of air circulation.

[0034] It should be noted that in this text, the terms "including", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] In this article, specific examples are used to elaborate on the principles and implementation manners of the present invention. The description of the above examples is only used to help understand the method of the present invention and its core idea. The above is only the preferred implementation manner of the present invention. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, retouches or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, should all be regarded as the protection scope of the present invention.

Claims

1. A hydrophobic and scratch-resistant air purification membrane, characterized in that: The invention comprises an outer anti-scratch grid membrane (4), a buffer structure layer (2), a filter core layer (1) and an inner support mesh (3) which are sequentially formed and arranged from the outside to the inside, wherein a breathable grid (6) is evenly provided on the outer anti-scratch grid membrane (4), the edge of the buffer structure layer (2) is flush with the edge of the outer anti-scratch grid membrane (4), and the surface of the outer anti-scratch grid membrane (4) not in contact with the buffer structure layer (2) is coated with a hydrophobic coating (5).

2. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The air-permeable grid (6) is a regular hexagonal slot structure.

3. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The horizontal distance between two adjacent air-permeable grids (6) is 0.1-0.3 mm.

4. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The thickness of the outer anti-scratch grid film (4) is 0.05-0.15 mm.

5. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The buffer structure layer (2) is a silica gel structure with a thickness of 0.1-0.2 mm.

6. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The hydrophobic coating (5) is a polytetrafluoroethylene coating structure with a thickness of 0.02-0.05 mm.

7. The hydrophobic and scratch-resistant air purification membrane according to claim 1, characterized in that: The inner layer support net (3) is a polyester fiber net structure with a thickness of 0.1-0.2 mm and a mesh diameter of 0.5-1.5 mm.

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