Electrolytic bath for carbon fiber modification and carbon fiber modification system

Abstract

The utility model provides an electrolytic bath for carbon fiber modification and a carbon fiber modification system, and belongs to the technical field of carbon fiber surface treatment. The electrolytic bath for carbon fiber modification comprises a bath body, a first partition plate and a second partition plate. The tank body is used for accommodating electrolyte and is provided with a feeding side and a discharging side which are arranged along a first direction; the first partition plate is located in the tank body and connected with the inner walls of the two sides of the tank body, the first partition plate extends in the first direction to divide a tank cavity of the tank body into a first tank chamber and a second tank chamber, and the two sides, corresponding to the tank body, of the first tank chamber and the second tank chamber are each provided with a feeding port and a discharging port; the second partition plate is arranged in the first tank chamber and located between the feeding port and the discharging port, one end of the second partition plate is connected with the inner wall of the tank body, and the other end of the second partition plate is connected with the first partition plate. The industrial requirements of carbon fiber production can be well met.

Description

Technical Field

[0001] The present application relates to the technical field of carbon fiber surface treatment, and more specifically, to an electrolytic cell for carbon fiber modification and a carbon fiber modification system. Background Art

[0002] In the prior art, the methods for carbon fiber surface modification usually include surface grafting, coating modification, plasma treatment, oxidation treatment, etc. Among them, the anodic electrolytic oxidation method in oxidation treatment is widely used in the industrial production of carbon fibers because of its easy reaction control, short time, and simple treatment device. Specifically, the anodic electrolytic oxidation method is to apply a certain current to the continuously produced carbon fibers as the anode through an electrolytic cell, and use the nascent oxygen generated by electrolysis to oxidize and corrode the surface of the carbon fibers, thereby generating active functional groups and improving the surface activity of the carbon fibers. However, the existing electrolytic cells usually can only oxidize one kind of carbon fiber product at the same time, and in addition, the existing electrolytic cells usually only have the function of primary oxidation treatment, making it difficult for the current electrolytic cells to meet the industrial requirements of carbon fiber production. Summary of the Utility Model

[0003] The purpose of the present application is to provide an electrolytic cell for carbon fiber modification and a carbon fiber modification system. The electrolytic cell for carbon fiber modification can not only oxidize multiple carbon fiber products at the same time, but also has the function of multi-stage oxidation, and can better meet the industrial requirements of carbon fiber production.

[0004] The embodiments of the present application are implemented as follows:

[0005] In a first aspect, an embodiment of the present application provides an electrolytic cell for carbon fiber modification, including a cell body, a first partition board, and a second partition board. The cell body is used to accommodate the electrolyte, and the cell body has a feed side and a discharge side arranged along a first direction; the first partition board is located in the cell body and is connected to the inner walls on both sides of the cell body. The first partition board extends along the first direction and divides the cell cavity of the cell body into a first cell chamber and a second cell chamber. Feed ports and discharge ports are provided on both sides of the first cell chamber and the second cell chamber corresponding to the cell body; the second partition board is arranged in the first cell chamber and is located between the feed port and the discharge port. One end of the second partition board is connected to the inner wall of the cell body, and the other end is connected to the first partition board.

[0006] In the above technical solution, the trough body has a feeding side and a discharging side arranged along the first direction, so that carbon fiber enters the trough body from the feeding side of the trough body along the first direction for oxidation treatment, and then leaves the trough body from the discharging side. Among them, a first partition board is arranged in the trough body, and the first partition board extends along the first direction to divide the trough cavity of the trough body into a first trough chamber and a second trough chamber, so that the electrolytic cell can oxidize two different types of carbon fiber products at the same time; at the same time, a second partition board is arranged in the first trough chamber, and the second partition board is arranged in the first trough chamber and is located between the feeding port and the discharging port. One end of the second partition board is connected to the inner wall of the trough body, and the other end is connected to the first partition board, that is, the first trough chamber is further divided, so that the electrolytic cell has the function of multi-stage oxidation treatment. In the embodiment of the present application, by adding a first partition board and a second partition board in the electrolytic cell at the same time, the electrolytic cell for carbon fiber modification can not only oxidize multiple carbon fiber products at the same time, but also has the function of multi-stage oxidation, and can better meet the industrial requirements of carbon fiber production.

[0007] In some alternative embodiments, the first partition board is a graphite board.

[0008] In the above technical solution, the first partition board is set as a graphite board. On the one hand, the graphite board can divide the trough body to form a first trough chamber and a second trough chamber; on the other hand, the graphite board can act as a cathode, that is, the first trough chamber and the second trough chamber share a cathode, which has the advantages of simpler structure and more economy compared with setting a cathode in each trough chamber alone.

[0009] In some alternative embodiments, in the second direction, the first partition board is located in the middle of the trough body, and the second direction is perpendicular to the first direction.

[0010] In the above technical solution, the first partition board is arranged in the middle of the trough body, that is, the trough body is evenly divided, so that the electrolytic cell has the advantage of relatively regular overall structure.

[0011] In some alternative embodiments, the second partition board extends along the second direction, and the second direction is perpendicular to the first direction.

[0012] In the above technical solution, the second partition board is arranged in a form extending along the second direction, so as to further divide the first trough chamber into multiple regular small trough chambers, and then the electrolytic cell has the advantage of relatively regular overall structure.

[0013] In some alternative embodiments, a plurality of wire dividing needles are further arranged on the top of the second partition board at intervals along the second direction, and the gap between any two adjacent wire dividing needles is used for passing carbon fiber.

[0014] In the above technical solution, a plurality of wire splitting needles are added to the top of the second partition plate and are distributed at intervals in the second direction, so that the carbon fibers pass through the gaps between adjacent two wire splitting needles, which can prevent the carbon fibers from being entangled with each other during the oxidation treatment process. At the same time, it can also play a role of limiting and guiding, which is helpful for the conveying of carbon fibers.

[0015] In some alternative embodiments, in the height direction of the tank body, the shape of the orthographic projection of the wire splitting needle is circular.

[0016] In the above technical solution, the shape of the orthographic projection of the wire splitting needle in the height direction of the tank body is circular, that is, the wire splitting needle is set in the shape of a cylinder, so that the contact area between the carbon fiber and the wire splitting needle is small and has a relatively smooth contact surface, which is helpful for better protecting the carbon fiber during the wire splitting process.

[0017] In some alternative embodiments, at both ends of the top of the second partition plate in the first direction, there are arc transitions.

[0018] In the above technical solution, both ends of the top of the second partition plate in the first direction are set in the form of arc transitions, so that the contact surface between the carbon fiber and the second partition plate is relatively smooth, which is helpful for better protecting the carbon fiber during the carbon fiber conveying process.

[0019] In some alternative embodiments, there are two second partition plates, and the two second partition plates are distributed at intervals in the first direction.

[0020] In the above technical solution, two second partition plates are arranged in the first tank chamber and are distributed at intervals in the first direction, so as to divide the first tank chamber into three tank chambers, that is, it has the function of three-stage oxidation treatment and can meet the multi-stage oxidation treatment requirements of most carbon fiber products.

[0021] In a second aspect, an embodiment of the present application provides a carbon fiber modification system, including an electrolytic cell for carbon fiber modification, an outer conveying roller, and an inner conveying roller provided in the embodiment of the first aspect. In the first direction, outer conveying rollers are arranged on both sides of the corresponding tank body of the first tank chamber and the second tank chamber, and a plurality of outer conveying rollers are all located above the tank body; inner conveying rollers are arranged in both the first tank chamber and the second tank chamber, and the inner conveying rollers and the corresponding plurality of outer conveying rollers are distributed at intervals in the first direction.

[0022] In the above technical solution, the carbon fiber modification system includes an electrolytic cell for carbon fiber modification provided in the embodiment of the first aspect, which can simultaneously perform oxidation treatment on various carbon fiber products and also has the function of multi-stage oxidation, and can better meet the industrial requirements of carbon fiber production; in addition, corresponding outer conveying rollers and inner conveying rollers are respectively arranged inside and outside the tank body for the first tank body and the second tank body. Among them, the outer conveying rollers are located above the tank body, and the inner conveying rollers are spaced apart from the corresponding outer conveying rollers in the first direction and are located inside the tank body, having the advantages of reasonable layout and convenient carbon fiber conveying.

[0023] In some alternative embodiments, the outer conveying rollers are conductive rollers and the inner conveying rollers are insulating rollers.

[0024] In the above technical solution, setting the outer conveying rollers as conductive rollers and the inner conveying rollers as insulating rollers, that is, directly energizing the carbon fiber through the outer conveying rollers without additionally arranging a conductive structure, has the advantages of relatively simple structure and economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic structural diagram of an electrolytic cell for carbon fiber modification provided by an embodiment of the present application from a top view perspective;

[0027] Figure 2 It is a schematic structural diagram of a carbon fiber modification system provided by an embodiment of the present application from a top view perspective;

[0028] Figure 3 It is a conveying schematic diagram of the carbon fiber for primary oxidation treatment in the second tank chamber provided by an embodiment of the present application;

[0029] Figure 4 It is a conveying schematic diagram of the carbon fiber for primary oxidation treatment in the first tank chamber provided by an embodiment of the present application;

[0030] Figure 5 It is a conveying schematic diagram of the carbon fiber for secondary oxidation treatment in the first tank chamber provided by an embodiment of the present application;

[0031] Figure 6 It is a conveying schematic diagram of the carbon fiber for tertiary oxidation treatment in the first tank chamber provided by an embodiment of the present application.

[0032] Icons: 10 - electrolytic cell for carbon fiber modification; 100 - cell body; 110 - feed side; 120 - discharge side; 130 - first cell chamber; 131 - first small cell chamber; 132 - second small cell chamber; 133 - third small cell chamber; 140 - second cell chamber; 200 - first partition; 300 - second partition; 310 - wire splitting needle; 1 - carbon fiber modification system; 20 - outer conveying roller; 30 - inner conveying roller; a - first direction; b - second direction. Detailed implementation manners

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application to be protected, but merely represents the selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship when the product of this application is normally placed. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying 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 to the present application. In addition, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0038] The following specifically describes an electrolytic cell for carbon fiber modification and a carbon fiber modification system provided by this application.

[0039] Referring to Figure 1 , in a first aspect, an embodiment of this application provides an electrolytic cell 10 for carbon fiber modification, including a cell body 100, a first partition 200, and a second partition 300. The cell body 100 is used to accommodate the electrolyte, and the cell body 100 has a feed side 110 and a discharge side 120 arranged along a first direction a; the first partition 200 is located inside the cell body 100 and is connected to the inner walls on both sides of the cell body 100. The first partition 200 extends along the first direction a to divide the cell cavity of the cell body 100 into a first cell chamber 130 and a second cell chamber 140. Feed ports and discharge ports are provided on both sides of the first cell chamber 130 and the second cell chamber 140 corresponding to the cell body 100; the second partition 300 is arranged in the first cell chamber 130 and is located between the feed port and the discharge port. One end of the second partition 300 is connected to the inner wall of the cell body 100, and the other end is connected to the first partition 200.

[0040] In this application, the cell body 100 has a feed side 110 and a discharge side 120 arranged along the first direction a, so that the carbon fiber enters the cell body 100 from the feed side 110 of the cell body 100 along the first direction a for oxidation treatment, and then leaves the cell body 100 from the discharge side 120. Among them, a first partition 200 is arranged inside the cell body 100. The first partition 200 extends along the first direction a to divide the cell cavity of the cell body 100 into a first cell chamber 130 and a second cell chamber 140, so that the electrolytic cell can simultaneously perform oxidation treatment on two different types of carbon fiber products; at the same time, a second partition 300 is arranged in the first cell chamber 130. The second partition 300 is arranged in the first cell chamber 130 and is located between the feed port and the discharge port. One end of the second partition 300 is connected to the inner wall of the cell body 100, and the other end is connected to the first partition 200, that is, the first cell chamber 130 is further divided, so that the electrolytic cell has the function of multi-stage oxidation treatment. By simultaneously adding a first partition 200 and a second partition 300 in the electrolytic cell, the electrolytic cell 10 for carbon fiber modification of this application embodiment can not only simultaneously perform oxidation treatment on multiple carbon fiber products, but also has the function of multi-stage oxidation, and can better meet the industrialization requirements of carbon fiber production.

[0041] It should be noted that the shape of the cell body 100 is not limited and can be adjusted according to actual needs. For example, the cell body 100 can be a rectangular parallelepiped cell body 100 with an opening at the top, and the first direction a can be the length direction or the width direction of the top (i.e., rectangle) of the cell body 100. In this application embodiment, the first direction a is taken as the length direction as an example.

[0042] As an example, the first partition 200 is a graphite plate.

[0043] In this embodiment, the first partition 200 is set as a graphite plate. On the one hand, the graphite plate can divide the tank body 100 to form a first tank chamber 130 and a second tank chamber 140; on the other hand, the graphite plate can act as a cathode, that is, the first tank chamber 130 and the second tank chamber 140 share a cathode, which has the advantages of simpler structure and lower cost compared with setting a separate cathode in each tank chamber.

[0044] To better understand the technical solution, the current circuits in the first tank chamber 130 and the second tank chamber 140 are described as follows for auxiliary explanation. Among them, the current circuit in the first tank chamber 130 is: an anodic electro-oxidation system composed of an energized carbon fiber, a graphite plate, and the electrolyte in the first tank chamber 130; the current circuit in the second tank chamber 140 is: an anodic electro-oxidation system composed of an energized carbon fiber, a graphite plate, and the electrolyte in the second tank chamber 140.

[0045] In other possible embodiments, the first partition 200 may not use a graphite plate but a general partition plate. In order to form a current circuit in the two tank chambers, a graphite plate can be separately provided at the bottom of each tank chamber to act as a cathode.

[0046] Refer to Figure 1 , as an example, in the second direction b, the first partition 200 is located in the middle of the tank body 100, and the second direction b is perpendicular to the first direction a (that is, the second direction b is the width direction of the top of the tank body 100).

[0047] In this embodiment, the first partition 200 is arranged in the middle of the tank body 100, that is, the tank body 100 is evenly divided, so that the electrolytic cell has the advantage of a relatively regular overall structure.

[0048] In other possible embodiments, in the second direction b, the first partition 200 can also be arranged at a non-middle position of the tank body 100 to adaptively adjust the position of the first partition 200 according to actual needs.

[0049] It should be noted that the extension direction of the second partition 300 is not limited and can be adaptively adjusted according to actual needs.

[0050] Refer to Figure 1 , as an example, the second partition 300 extends along the second direction b, and the second direction b is perpendicular to the first direction a (that is, the second partition 300 extends along the width direction of the top of the tank body 100).

[0051] In this embodiment, the second partition 300 is arranged to extend along the second direction b, so as to further divide the first tank chamber 130 into a plurality of regular small tank chambers, and further make the electrolytic cell have the advantage of a relatively regular overall structure.

[0052] Refer to Figure 1 As an example, a plurality of wire dividing needles 310 are further arranged at the top of the second partition plate 300 and are spaced apart along the second direction b. The gap between any two adjacent wire dividing needles 310 is used for passing carbon fibers.

[0053] In this embodiment, a plurality of wire dividing needles 310 are additionally arranged at the top of the second partition plate 300 and are spaced apart along the second direction b, so that the carbon fibers pass through the gap between two adjacent wire dividing needles 310, which can prevent the carbon fibers from being entangled with each other during the oxidation treatment. At the same time, it can also play a role in limiting and guiding, which is helpful for the transportation of carbon fibers.

[0054] It should be noted that the specific configuration of the wire dividing needle 310 is not limited and can be set according to the conventional selection in the art.

[0055] Refer to Figure 1 As an example, in the height direction of the tank body 100, the shape of the orthographic projection of the wire dividing needle 310 is circular.

[0056] In this embodiment, the shape of the orthographic projection of the wire dividing needle 310 in the height direction of the tank body 100 is circular, that is, the wire dividing needle 310 is set in the shape of a cylinder, so that the contact area between the carbon fiber and the wire dividing needle 310 is small and has a relatively smooth contact surface, which is helpful for better protecting the carbon fiber during the wire dividing process.

[0057] It should be noted that in order to oxidize the carbon fiber, the carbon fiber needs to be immersed in the electrolyte of the corresponding tank body 100. Correspondingly, the bottom of the conveying roller located in the tank body 100 is usually lower than the second partition plate 300. However, this setting form usually causes the carbon fiber to contact and wear the top edge of the second partition plate 300 in the first direction a during the conveying process. To solve this problem, the structure of the second partition plate 300 can be optimized.

[0058] As an example, at both ends of the top of the second partition plate 300 in the first direction a, there are arc transitions.

[0059] In this embodiment, both ends of the top of the second partition plate 300 in the first direction a are set in the form of arc transitions, so that the carbon fiber and the second partition plate 300 have a relatively smooth contact surface, which is helpful for better protecting the carbon fiber during the carbon fiber conveying process.

[0060] It should be noted that the specific number of the second partition plates 300 is not limited and can be adjusted according to actual needs. For example, it can be one (corresponding to secondary oxidation treatment), two (corresponding to tertiary oxidation treatment), or three (corresponding to quaternary oxidation treatment).

[0061] Refer to Figure 1, as an example, two second partition plates 300 are provided, and the two second partition plates 300 are spaced apart along the first direction a.

[0062] In this embodiment, two second partition plates 300 spaced apart along the first direction a are arranged in the first tank chamber 130 to divide the first tank chamber 130 into three tank chambers, that is, it has the function of three-stage oxidation treatment and can meet the multi-stage oxidation treatment requirements of most carbon fiber products.

[0063] It should be noted that the structural or functional units not specifically described or limited in the electrolytic cell 10 for carbon fiber modification can be set according to the conventional selection in the art.

[0064] Refer to Figure 2 , secondly, the embodiment of the present application provides a carbon fiber modification system 1, including the electrolytic cell 10 for carbon fiber modification provided in the embodiment of the first aspect, an outer conveying roller 20 and an inner conveying roller 30. In the first direction a, outer conveying rollers 20 are arranged on both sides of the corresponding tank body 100 of the first tank chamber 130 and the second tank chamber 140, and a plurality of outer conveying rollers 20 are all located above the tank body 100; inner conveying rollers 30 are arranged in both the first tank chamber 130 and the second tank chamber 140, and the inner conveying rollers 30 and the corresponding plurality of outer conveying rollers 20 are spaced apart along the first direction a.

[0065] In the present application, the carbon fiber modification system 1 includes the electrolytic cell 10 for carbon fiber modification provided in the embodiment of the first aspect, which can simultaneously perform oxidation treatment on various carbon fiber products and also has the function of multi-stage oxidation, and can better meet the industrialization requirements of carbon fiber production; in addition, corresponding outer conveying rollers 20 and inner conveying rollers 30 are respectively arranged inside and outside the tank body 100 corresponding to the first tank body 100 and the second tank body 100. Among them, the outer conveying rollers 20 are located above the tank body 100, and the inner conveying rollers 30 are spaced apart from the corresponding outer conveying rollers 20 along the first direction a and are located inside the tank body 100, having the advantages of a more reasonable layout and being convenient for carbon fiber conveying.

[0066] It should be noted that the number of inner conveying rollers 30 arranged in each tank chamber is not limited and can be adaptively adjusted according to the size (i.e., length) of the corresponding tank chamber in the first direction a.

[0067] It can be understood that when a second partition plate 300 is added in the first tank chamber 130 to form a plurality of small tank chambers, inner conveying rollers 30 are also correspondingly arranged in each small tank chamber.

[0068] To better understand the technical solution, in the embodiment of the present application, taking the example of adding two partition plates in the first tank chamber 130 to form three small tank chambers, specifically, in the first direction a, from the feeding side 110 to the discharging side 120 of the tank body 100, the three small tank chambers are successively the first small tank chamber 131, the second small tank chamber 132, and the third small tank chamber 133.

[0069] Referring to Figure 2 , as an example, in the second direction b, the outer conveying roller 20 extends from one end of the tank body 100 to the opposite end, that is, only one outer conveying roller 20 needs to be arranged on both the feeding side 110 and the discharging side 120 of the tank body 100 to realize the conveyance of carbon fiber in the first tank chamber 130 and the second tank chamber 140.

[0070] In this embodiment, in the second direction b, the outer conveying roller 20 extends from one end of the tank body 100 to the opposite end, which can reduce the layout quantity of the outer conveying roller 20, thereby simplifying the overall structure of the carbon fiber modification system 1 and having an economic advantage.

[0071] As an example, the outer conveying roller 20 is a conductive roller, and the inner conveying roller 30 is an insulating roller.

[0072] In this embodiment, setting the outer conveying roller 20 as a conductive roller and the inner conveying roller 30 as an insulating roller, that is, directly energizing the carbon fiber through the outer conveying roller 20 without additionally arranging a conductive structure, has the advantages of relatively simple structure and economy.

[0073] In other possible embodiments, the outer conveying roller 20 is also an insulating roller. To energize the carbon fiber, an additional energizing element can be arranged to be electrically connected to the carbon fiber.

[0074] It should be noted that for the structural or functional units in the carbon fiber modification system 1 that are not specifically described or limited, they can be set according to the conventional selection in the art.

[0075] To better understand the technical solution, here, in combination with the conveying schematic diagram of the specific oxidation treatment process of carbon fiber in the corresponding tank chamber, an auxiliary description is made.

[0076] Among them, for the schematic diagram of the oxidation treatment of carbon fiber in the second tank chamber 140, please refer to Figure 3 , specifically, the carbon fiber passes through the top of the outer conveying roller 20 on the feeding side 110, then passes through the bottom of the inner conveying roller 30 located in the second tank chamber 140, and finally passes through the top of the outer conveying roller 20 on the discharging side 120.

[0077] For the schematic diagram of the primary oxidation treatment of carbon fiber in the first tank chamber 130, please refer to Figure 4, specifically, the carbon fiber passes through the top of the outer conveying roller 20 on the feeding side 110, then passes through the bottom of the inner conveying roller 30 located in the first small tank chamber 131 and successively passes through the tops of two second partition plates 300, and finally passes through the top of the outer conveying roller 20 on the discharging side 120.

[0078] For the schematic diagram of the secondary oxidation treatment of the carbon fiber in the first tank chamber 130, please refer to Figure 5 , specifically, the carbon fiber passes through the top of the outer conveying roller 20 on the feeding side 110, then passes through the bottom of the inner conveying roller 30 located in the first small tank chamber 131 and passes through the top of the first second partition plate 300, then passes through the bottom of the inner conveying roller 30 in the second small tank chamber 132 and passes through the top of the second second partition plate 300, and finally passes through the top of the outer conveying roller 20 on the discharging side 120.

[0079] For the schematic diagram of the tertiary oxidation treatment of the carbon fiber in the first tank chamber 130, please refer to Figure 6 , specifically, the carbon fiber passes through the top of the outer conveying roller 20 on the feeding side 110, then passes through the bottom of the inner conveying roller 30 located in the first small tank chamber 131 and passes through the top of the first second partition plate 300, then passes through the bottom of the inner conveying roller 30 in the second small tank chamber 132 and passes through the top of the second second partition plate 300, then passes through the bottom of the inner conveying roller 30 in the third small tank chamber 133, and finally passes through the top of the outer conveying roller 20 on the discharging side 120.

[0080] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An electrolytic cell for carbon fiber modification, characterized in that, Comprising: A trough body for containing electrolyte, the trough body having a feed side and a discharge side arranged along a first direction; A first partition located inside the trough body and connected to the inner walls on both sides of the trough body, the first partition extending along the first direction to divide the trough cavity of the trough body into a first trough chamber and a second trough chamber, and a feed port and a discharge port are provided corresponding to both sides of the trough body in the first trough chamber and the second trough chamber; A second partition disposed in the first trough chamber and located between the feed port and the discharge port, one end of the second partition being connected to the inner wall of the trough body and the other end being connected to the first partition.

2. The electrolytic cell for carbon fiber modification according to claim 1, wherein The first partition is a graphite plate.

3. The electrolytic cell for carbon fiber modification according to claim 1, characterized in that, In a second direction perpendicular to the first direction, the first partition is located in the middle of the trough body.

4. The electrolytic cell for carbon fiber modification according to any one of claims 1 to 3, characterized in that The second partition extends along the second direction perpendicular to the first direction.

5. The electrolytic cell for carbon fiber modification according to claim 4, characterized in that, A plurality of wire splitting needles are further provided at the top of the second partition and are spaced apart along the second direction, and a gap between any two adjacent wire splitting needles is used for passing carbon fibers.

6. The electrolytic cell for carbon fiber modification according to claim 5, characterized in that, In the height direction of the trough body, the shape of the orthographic projection of the wire splitting needle is circular.

7. The electrolytic cell for carbon fiber modification according to claim 5, characterized in that, At both ends of the top of the second partition, there are arc transitions in the first direction.

8. The electrolytic cell for carbon fiber modification according to claim 4, characterized in that, There are two second partitions, and the two second partitions are spaced apart along the first direction.

9. A carbon fiber modification system, characterized in that, Comprising: An electrolytic cell for carbon fiber modification according to any one of claims 1 to 8; Outer conveying rollers, in the first direction, outer conveying rollers are provided corresponding to both sides of the trough body in the first trough chamber and the second trough chamber, and a plurality of the outer conveying rollers are all located above the trough body; Inner conveying rollers are provided in both the first trough chamber and the second trough chamber, and the inner conveying rollers and the corresponding plurality of outer conveying rollers are spaced apart along the first direction.

10. The carbon fiber modification system according to claim 9, wherein, The outer conveying rollers are conductive rollers, and the inner conveying rollers are insulating rollers.

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