Clamping mold for graphene film production

Abstract

The utility model discloses a clamping mould for graphene film production, which relates to the technical field of graphene, and comprises a bottom plate, partition plates, a graphene oxide film and a top plate, at least two mutually parallel partition plates are arranged between the bottom plate and the top plate, the graphene oxide film is arranged between the two adjacent partition plates, and the top plate is arranged between the two adjacent partition plates. A gas guide channel matched with the graphene oxide film is formed in the partition plate, and the bottom plate is connected with the top plate through a bolt. The bottom plate serves as a basic supporting structure of the whole clamping die, and the stability and the bearing capacity of the die are guaranteed. The partition plates are arranged at intervals and divide the graphene oxide film into a plurality of independent areas, the size of the partition plates is slightly larger than that of the graphene oxide film, and when three or more partition plates are used at the same time, the positions of the gas guide channels in the partition plates need to be aligned with one another, so that gas generated in the thermal reduction process of the graphene oxide film can be smoothly exhausted.

Description

Technical Field

[0001] The utility model relates to the technical field of graphene, in particular to a clamping mold for producing graphene films. Background Art

[0002] One of the preparation methods of graphene film is to first thermally reduce the graphene oxide film, and then obtain it through a series of processes such as graphitization and flat pressing and densification. Since the graphene oxide film itself produces gas during the thermal reduction process, it will have a certain impact on the film. The general pressing plate usually used in the thermal reduction process cannot effectively discharge the gas generated during the thermal reduction process, resulting in low density and poor performance of the finished graphene film. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a clamping mold for producing graphene membranes.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] The present application provides a clamping mold for the production of graphene membranes, characterized in that it includes a bottom plate, a partition, a graphene oxide membrane and a top plate, at least two partitions arranged parallel to each other are arranged between the bottom plate and the top plate, the graphene oxide membrane is arranged between two adjacent partitions, an air guide channel cooperating with the graphene oxide membrane is provided on the partition, and the bottom plate and the top plate are connected by bolts.

[0006] Furthermore, the air guide channel is provided on the surface of the partition, and one end or both ends of the air guide channel extend to the outside of the side surface of the partition.

[0007] Furthermore, the air guide channel is arranged inside the partition, and one end or both ends of the air guide channel passes through the side of the partition, and a plurality of air holes connected with the air guide channel are arranged on the surface of the partition.

[0008] Furthermore, the sides of the bottom plate and the top plate are arranged on a pad.

[0009] Furthermore, threaded blind holes are provided on the four corners of the bottom plate, through holes are provided on the four corners of the top plate to match the threaded blind holes, and one end of the bolt passes through the through hole to match the threaded blind hole.

[0010] Furthermore, a handle is provided on the top plate.

[0011] Furthermore, the pressure between the bolt and the partition is 0.1-20 MPa.

[0012] Furthermore, the bottom plate is arranged parallel to the top plate.

[0013] The beneficial effects of the utility model are:

[0014] 1) The separators are spaced apart to separate the graphene oxide membrane into multiple independent areas, and their size is slightly larger than that of the graphene oxide membrane. When three or more separators are used at the same time, the positions of the gas guide channels on the separators need to be aligned with each other so that the gas generated by the graphene oxide membrane during the thermal reduction process can be discharged smoothly.

[0015] 2) The air channel is located on the surface of the baffle, with one or both ends extending through the side of the baffle. This design allows gas to flow directly through the air channel on the baffle surface, without having to bypass the baffle, thereby improving the efficiency and directness of the gas flow, making cleaning and maintenance relatively simple and straightforward.

[0016] 3) The air vents serve as the interface between the gas channel and the external environment, significantly improving the gas exchange efficiency between the two sides of the partition and helping to achieve more uniform gas distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of a graphene film clamping mold holding a graphene oxide film;

[0018] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0019] Figure 3 Schematic diagram of the separator connected to the graphene oxide membrane;

[0020] Figure 4 This is a schematic diagram of the first type of air guide channel layout structure;

[0021] Figure 5 This is a schematic diagram of the second type of air guide channel arrangement structure;

[0022] In the figure, 1-bottom plate, 2-partition plate, 3-graphene oxide membrane, 4-top plate, 5-air guide channel, 6-bolt, 7-air vent, 8-pad, 9-threaded blind hole, 10-through hole, 11-handle. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0024] See Figure 1-Figure 5, the utility model provides a technical solution:

[0025] A clamping mold for producing graphene membranes, comprising a bottom plate 1, a partition 2, a graphene oxide membrane 3 and a top plate 4, wherein at least two partitions 2 arranged parallel to each other are provided between the bottom plate 1 and the top plate 4, a graphene oxide membrane 3 is provided between two adjacent partitions 2, an air guide channel 5 is provided on the partition 2 to cooperate with the graphene oxide membrane 3, and the bottom plate 1 and the top plate 4 are connected by bolts 6. Among them, the bottom plate 1 serves as the basic support structure of the entire clamping mold to ensure the stability and load-bearing capacity of the mold. The partitions 2 are arranged at intervals to separate the graphene oxide membrane 3 into multiple independent areas, and the size is slightly larger than the size of the graphene oxide membrane 3. When three or more partitions 2 are used at the same time, the positions of the air guide channels 5 on the partitions 2 need to be aligned with each other so that the gas generated by the graphene oxide membrane 3 during the thermal reduction process can be discharged smoothly. The cross-sectional shape of the air guide channel 5 can be other shapes such as circular, elliptical, and is not limited to the above-mentioned shapes. The shape of the air guide channel 5 can be linear or curved. Graphene oxide film 3, as the core material of the clamping mold, significantly improves the product's thermal conductivity while also enhancing its mechanical strength and corrosion resistance. The thickness of graphene oxide film 3 is not limited; the thickness of the graphene oxide film 3 and the resulting graphene film product determined by the film 3 will depend on the actual situation. Products of appropriate thickness can be prepared based on specific needs. Top plate 4 is placed outside the topmost partition plate 2 and connected to bottom plate 1 via bolts 6, forming a receiving cavity.

[0026] In addition, the graphene oxide film 3 shown in the figure of this embodiment is in the shape of a rectangular sheet. The rectangular sheet-shaped graphene oxide film 3 is only used as an example and is not used to limit the shape of the graphene oxide film 3. In other embodiments, the graphene oxide film 3 can be cut according to actual needs, such as cutting it into any other shape such as a circle or an ellipse.

[0027] In some embodiments, the air guide channel 5 is provided on the surface of the partition 2, with one or both ends of the air guide channel 5 extending outside the side of the partition 2. This design allows gas to flow directly through the air guide channel 5 on the surface of the partition 2, thereby improving the efficiency and directness of the gas flow, making cleaning and maintenance relatively simple and straightforward.

[0028] In some embodiments, the air guide channel 5 is arranged inside the partition 2, and one end or both ends of the air guide channel 5 pass through the side of the partition 2, and a plurality of air holes 7 connected to the air guide channel 5 are provided on the surface of the partition 2. Among them, the design of the internal air guide channel 5 helps to save external space and make the overall structure more compact. The internal channel reduces the impact of the external environment on the gas flow and helps to maintain the stability and consistency of the gas flow. In some cases, the design of the internal channel can increase the overall structural strength of the partition 2 and improve its pressure bearing capacity. The air holes 7 serve as the interface between the air guide channel 5 and the external environment, significantly improving the exchange efficiency of the gas between the two sides of the partition 2 and helping to achieve a more uniform gas distribution. The air holes 7 are prismatic holes, cylindrical holes, or elliptical holes. The shapes of the air holes 7 include but are not limited to the above. The number of air guide channels 5 can be one or more. When the number of air guide channels 5 is multiple, the multiple air guide channels 5 can be arranged in parallel with each other or staggered with each other.

[0029] In some embodiments, the sides of the bottom plate 1 and the top plate 4 are arranged on the pad 8. The pad 8 provides a stable support platform for the bottom plate 1 and the top plate 4, thereby labor-savingly pushing the clamping mold into the muffle furnace.

[0030] In some embodiments, threaded blind holes 9 are defined at each of the four corners of the bottom plate 1, and through holes 10 are defined at each of the four corners of the top plate 4, mating with the threaded blind holes 9. One end of a bolt 6 passes through the through holes 10 and engages with the threaded blind holes 9. This design creates a stable framework, and the ease of installation and removal allows the bolts 6 to easily pass through and secure in the screw holes, ensuring uniform force distribution during tightening, thereby avoiding mold deformation or machining errors caused by uneven force distribution. This simplifies the mold installation and removal process.

[0031] In some embodiments, a handle 11 is provided on the top plate 4. The handle 11 is mainly used to facilitate the user to move or adjust the position of the entire device or equipment, thereby improving the convenience of use of the equipment.

[0032] In some embodiments, the pressure between the bolt 6 and the separator 2 is 0.1-20 MPa. This pressure range is likely determined based on the material and strength of the separator 2 and the properties of the graphene oxide membrane 3 to be laminated. Too low a pressure may not effectively laminate the membrane, while too high a pressure may damage the separator 2 or the membrane.

[0033] In some embodiments, the bottom plate 1 is arranged in parallel with the top plate 4. The parallel arrangement of the bottom plate 1 and the top plate 4 can ensure that the structure is uniformly stressed in the vertical direction, thereby avoiding structural deformation or damage caused by uneven stress and enhancing the rigidity of the entire structure.

[0034] Principle: First place the bottom plate 1 flat on the ground, and then place the partition 2, graphene oxide film 3, and partition 2 layer by layer on the inner side of the bottom plate 1. After the partition 2 and graphene oxide film 3 are placed, place the top plate 4 on the outside of the topmost partition 2, and then pass the bolt 6 through the through hole 10 and the threaded blind hole 9 in turn, and tighten the bolt 6 to press the partition 2 and the graphene oxide film 3; finally, move the clamping mold to the pad 8, so that the slide groove is stuck on the slide rail, and then use the handle 11 to push the clamping mold into the muffle furnace for thermal reduction.

[0035] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "the other end", "coaxial", "one side", "inside", "front", "center", "two ends", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0036] In the present invention, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixation", "hinge" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0037] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein and should not be construed as excluding other embodiments. Instead, the present invention can be used in various other combinations, modifications, and environments and can be modified within the scope of the concept described herein through the above teachings or techniques or knowledge in the relevant fields. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention are intended to be protected by the claims appended hereto.

Claims

1. A clamping mold for producing graphene membranes, characterized in that: The invention comprises a bottom plate (1), a partition plate (2), a graphene oxide film (3) and a top plate (4); at least two partition plates (2) arranged parallel to each other are provided between the bottom plate (1) and the top plate (4); the graphene oxide film (3) is provided between two adjacent partition plates (2); an air guide channel (5) cooperating with the graphene oxide film (3) is provided on the partition plate (2); and the bottom plate (1) and the top plate (4) are connected by bolts (6).

2. The clamping mold for producing a graphene film according to claim 1, characterized in that: The air guide channel (5) is arranged on the surface of the partition (2), and one end or both ends of the air guide channel (5) extend to the outside of the side surface of the partition (2).

3. The clamping mold for producing a graphene film according to claim 2, characterized in that: The air guide channel (5) is arranged inside the partition (2), and one end or both ends of the air guide channel (5) pass through the side of the partition (2), and a plurality of air holes (7) connected to the air guide channel (5) are arranged on the surface of the partition (2).

4. The clamping mold for producing a graphene film according to claim 3, characterized in that: The sides of the bottom plate (1) and the top plate (4) are arranged on a pad (8).

5. The clamping mold for producing a graphene film according to claim 4, characterized in that: Threaded blind holes (9) are provided at the four corners of the bottom plate (1), through holes (10) cooperating with the threaded blind holes (9) are provided at the four corners of the top plate (4), and one end of the bolt (6) passes through the through hole (10) and cooperates with the threaded blind hole (9).

6. The clamping mold for producing a graphene film according to claim 5, characterized in that: A handle (11) is provided on the top plate (4).

7. The clamping mold for producing a graphene film according to claim 1, characterized in that: The pressure between the bolt (6) and the partition (2) is 0.1-20 MPa.

8. The clamping mold for producing a graphene film according to claim 1, characterized in that: The bottom plate (1) and the top plate (4) are arranged in parallel.

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