Process for producing an oil agent for a carbon fiber precursor with excellent processability and a production device

Abstract

The application discloses a preparation device of an oil agent for excellent process carbon fiber precursor. The preparation device comprises a bottom plate, a catalysis mechanism, a stirring mechanism, a homogenization mechanism and a control mechanism; the catalysis mechanism is mainly applied to catalytic reaction of production of the oil agent for excellent process carbon fiber precursor, and the catalysis mechanism comprises a rack and a catalysis tank, and the rack is installed on one side of the bottom plate. The application solves the problems of heat and yarn sticking and roll sticking between fibers caused by cross-linking reaction of the carbon fiber oil agent at high temperature. In addition, the hydrophilicity, the adhesion to the fiber surface and the antistatic performance of the oil agent are also improved. The introduced macromolecular epoxy silicone oil improves the fiber bundling property, the heat resistance and the anti-sticking property, solves the problem of roll sticking of the carbon fiber precursor oil agent in the drying process section, reduces the generation of the fiber breakage in the precursor production, and greatly improves the quality of the carbon fiber precursor.

Description

Technical Field

[0001] This invention relates to the field of carbon fiber precursor oil production technology, specifically to a process for preparing an oil for carbon fiber precursor with excellent processability, and more particularly to an apparatus for preparing an oil for carbon fiber precursor with excellent processability. Background Technology

[0002] Carbon fiber oil is an indispensable key additive in the carbon fiber manufacturing process. Its function is to prevent fiber monofilaments from sticking together and tangling, and to reduce friction and wear between the fiber surface and the rollers, thereby reducing surface defects and improving carbon fiber quality. In the production of polyacrylonitrile carbon fiber precursor, modified polydimethylsiloxane (commonly known as silicone oil) is often used as the main component of the oil, obtained by compounding different functional group modified silicone oils such as amino silicone oil, epoxy silicone oil, and polyether silicone oil. For example, Chinese patent CN101091010A uses amino-modified silicone oil, epoxy-modified silicone oil, and polyether silicone oil to prepare carbon fiber oil. Because amino and epoxy groups undergo cross-linking reactions at high temperatures, causing fiber sticking to the rollers during production, it is also necessary to introduce high-viscosity liquid microparticles and temperature-sensitive polymers to suppress the thermal bonding effect caused by the cross-linking of reactive silicone oil at high temperatures. Chinese patent CN107503157A prepared a block silicone oil compound by reacting polyetheramine with small molecule epoxy silicone oil. Using small molecule epoxy silicone oil will lead to problems such as decreased heat resistance of the oil, increased fuzz, poor carbon fiber processability, and fiber breakage. Summary of the Invention

[0003] The technical objective of this invention is to address the above-mentioned shortcomings by providing an oiling agent for carbon fiber precursor with excellent processability.

[0004] In this invention, diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane are catalyzed and ring-opened in a catalytic tank for 1 to 2 hours. Then, the polymeric active group N / A is slowly added dropwise. After catalytic reaction for 1.5 to 2 hours, the mixture is transported to an emulsification tank through a conveying pipe. The polymeric reactive group N / A is embedded on the basis of the oil agent synthesis, so that the oil agent can maintain good heat resistance, antistatic properties and spinnability, and can also significantly improve the stability of carbon fiber processing to meet the application requirements of special applications.

[0005] Meanwhile, when using this invention, an emulsification tank, a catalytic tank, and a cylinder are installed on the base plate and frame. The emulsification tank realizes the catalytic and polymerization reaction of the oil agent, and the oil agent is transported to the emulsification tank through a conveying pipe. The second motor drives the second stirring blade to carry out the emulsification and stirring reaction of the oil agent. Finally, through the cylinder, the first motor drives two gears to mesh and drive the blades inside the shell to homogenize the oil agent. This invention shortens the production process of the oil agent and reduces production costs.

[0006] The microcontroller inside the housing transmits data detected by the flow sensor and temperature sensor to the touch screen in real time. Based on the preset data in the microcontroller, it determines whether to start or stop the power equipment, thereby realizing the data detection and automated production of the oil.

[0007] The technical solution of this invention is implemented as follows:

[0008] A preparation process for an oiling agent with excellent processability for carbon fiber precursor, using a preparation apparatus, includes the following steps:

[0009] S1. Weigh by weight: 20-25 parts pure water, 2-4 parts diaminopropyltetramethyldisilane, 15-20 parts octamethylcyclotetrasiloxane, 1-3 parts N / A high molecular weight active group, 2-3 parts sodium carbonate, 3-5 parts alkylphenol polyoxyethylene ether, 4-7 parts polyether silicone oil, 2-5 parts ethyltrimethoxysilane, 5-7 parts polyterephthalic acid, 2-3 parts nylon b6 and 4-8 parts tribasic lead sulfate;

[0010] S2. Diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane, along with an alkali, are added to a catalytic tank. After diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane undergo alkali-catalyzed ring-opening polymerization in the catalytic tank for 1-2 hours, the polymeric active group N / A is slowly added dropwise.

[0011] S3. After 1.5 to 2 hours of catalytic reaction, the mixture is transported to the emulsification tank through the conveying pipe. The viscosity of the reactants is gradually reduced to a qualified level by the flow sensor in the emulsification tank, and the temperature of the reactants is maintained at 60°C. The reaction is then terminated, and the heating plate is controlled according to the temperature sensor.

[0012] S4. After the reaction is terminated, add alkylphenol polyoxyethylene ether and slowly add metered pure water to emulsify into a stable emulsion.

[0013] Preferably, in step S4, the emulsion is thoroughly mixed with polyether silicone oil, ethyltrimethoxysilane, nylon b6 and tribasic lead sulfate in a ratio of 10:3:1:1:4, and then slowly emulsified with metered pure water to form a stable emulsion.

[0014] During mixing, a second motor is used for stirring at a speed of 60 r / min to 120 r / min.

[0015] The present invention also provides an apparatus for preparing an oiling agent for carbon fiber precursor with excellent processability. The apparatus includes a base plate, a catalytic mechanism, a stirring mechanism, a homogenization mechanism, and a control mechanism.

[0016] The catalytic mechanism is used to catalyze the production of oil for high-performance carbon fiber precursor. The catalytic mechanism includes a frame and a catalytic tank. The frame is installed on one side of the base plate, and the catalytic tank is fixedly connected to the top of the frame. Two partitions are fixedly connected inside the catalytic tank. Three feeding hoppers are installed on the top of the catalytic tank. A third motor is installed on one side of the catalytic tank. The rotating shaft of the third motor is fixedly connected to a rotating rod through a coupling. One end of the rotating rod passes through the partition and is rotatably connected to the inside of the catalytic tank through a rotating shaft. Several first stirring blades are fixedly connected to the outside of the rotating rod. Three conveying pipes are connected to the bottom of the catalytic tank, and solenoid valves are installed on the conveying pipes.

[0017] The stirring mechanism is used to accelerate the emulsification of the materials. The stirring mechanism includes an emulsification tank and a water pump. Both the emulsification tank and the water pump are installed on the top of the base plate. A second motor is installed on the top of the emulsification tank. The rotating shaft of the second motor is fixedly connected to a rod. The rod is located inside the emulsification tank. A second stirring blade is fixedly connected to the outside of the rod. The water inlet of the water pump is connected to an inlet pipe. One end of the inlet pipe passes through one side of the emulsification tank. The water outlet of the water pump is connected to a delivery pipe.

[0018] The homogenization mechanism is used for homogenization reaction during oil production. The homogenization mechanism includes a cylinder, which is installed on the top of the base plate. A first motor is installed on the top of the cylinder. A shell is installed inside the cylinder. A discharge pipe is connected to one side of the shell, and a pipe is connected to the other side of the shell. A connecting rod is rotatably installed inside the shell via a rotating shaft. A blade is fixedly connected to one end of the connecting rod, and gears are fixedly connected to both the other end of the connecting rod and the rotating shaft of the first motor. The two gears mesh with each other. One end of the infusion pipe is connected to the outside of the pipe. A valve is installed on one side of the cylinder.

[0019] The control mechanism is used to operate the power equipment and monitor production. The control mechanism includes a housing, a microcontroller, and a touch screen. The housing is installed on the top of the base plate, the microcontroller is installed inside the housing, and the touch screen is installed on one side of the frame. Temperature sensors are installed inside the catalytic tank and the emulsification tank, and a flow sensor is installed inside the emulsification tank.

[0020] Preferably, the microcontroller's electrical control terminal is electrically connected to the first motor, second motor, solenoid valve, third motor, and water pump via wires. The signal output terminals of the flow sensor and temperature sensor are both connected to the signal input terminal of the microcontroller, and the signal output terminal of the microcontroller is connected to the signal input terminal of the touch screen.

[0021] Preferably, a connecting plate is fixedly connected to the outside of the cylinder, and the connecting plate has through holes.

[0022] Preferably, a buckle is installed on one side of the frame, and the outside of the feed pipe is located inside the buckle.

[0023] Preferably, an observation window is installed on one side of the emulsification tank.

[0024] Preferably, the emulsification tank is equipped with a heating plate inside.

[0025] Preferably, the number of first stirring blades is not less than five.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] 1. In the use of this invention, diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane are catalyzed and ring-opened in a catalytic tank for 1 to 2 hours. Then, the polymeric active group N / A is slowly added dropwise. After catalytic reaction for 1.5 to 2 hours, the mixture is transported to an emulsification tank through a conveying pipe. The polymeric reactive group N / A is embedded on the basis of the oil agent synthesis, so that the oil agent can maintain good heat resistance, antistatic properties and spinnability, and can also significantly improve the tensile strength of carbon fibers to meet the application requirements of special applications.

[0028] 2. In use, an emulsification tank, a catalytic tank, and a cylinder are installed on the base plate and frame. The emulsification tank facilitates the catalytic and polymerization reactions of the oil agent, which is then transported to the emulsification tank via a conveying pipe. A second motor drives a second stirring blade to perform emulsification and stirring reactions on the oil agent. Finally, the oil agent is homogenized by two meshing gears driven by a first motor through the cylinder, thereby driving the blades inside the shell to perform homogenization operations. This invention shortens the production process of the oil agent and reduces production costs.

[0029] 3. When using this invention, the data detected by the flow sensor and temperature sensor inside the box is transmitted to the touch screen in real time through the microcontroller. The microcontroller determines whether to start or stop the power equipment based on the preset data inside the microcontroller, thereby realizing the data detection of oil and automated production. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This refers to the carbon fiber tensile strength in various embodiments of the present invention.

[0032] Figure 2 This refers to the carbon fiber density in various embodiments of the present invention.

[0033] Figure 3 This is a flowchart illustrating the preparation process of the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the apparatus for preparing an oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0035] Figure 5 This is a schematic diagram of the emulsification tank of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0036] Figure 6 This is a cross-sectional schematic diagram of the catalytic tank of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0037] Figure 7 This is a cross-sectional structural diagram of the cylinder of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0038] Figure 8 This is a cross-sectional structural diagram of the housing of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0039] Figure 9 This is an embodiment of the present invention. Figure 4 A magnified structural diagram of part A in the diagram.

[0040] Figure 10 This is an embodiment of the present invention. Figure 6 A magnified structural diagram of part B in the diagram.

[0041] Figure 11 This is a schematic cross-sectional view of the housing of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0042] Figure 12 This is a cross-sectional schematic diagram of the catalytic tank of the apparatus for preparing the oiling agent for carbon fiber precursor with excellent processability according to an embodiment of the present invention.

[0043] Figure 13 This is a cross-sectional schematic diagram of the emulsification tank of the preparation apparatus for the excellent processability of carbon fiber precursor oil in an embodiment of the present invention.

[0044] In the diagram: 1. Base plate; 2. Frame; 3. Emulsifying tank; 4. Box body; 5. Touch screen; 6. Valve; 7. Cylinder; 8. First motor; 9. Connecting plate; 10. Through hole; 11. Infusion pipe; 12. Water pump; 13. Inlet pipe; 14. Second motor; 15. Buckle; 16. Solenoid valve; 17. Feed pipe; 18. Catalytic tank; 19. Feed hopper; 20. Third motor; 21. Observation window; 22. Rotating rod; 23. Baffle plate; 24. Discharge pipe; 25. Shell; 26. Blade; 27. Pipe body; 28. Connecting rod; 29. ​​Gear; 30. Microcontroller; 31. First stirring blade; 32. First flow sensor; 33. Second temperature sensor; 34. Second stirring blade; 35. Rod body; 36. Heating plate. Detailed Implementation

[0045] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0046] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0047] Example 1

[0048] The oiling agent for high-processability carbon fiber precursor according to embodiments of the present invention comprises, by weight, 20-25 parts of pure water, 2-4 parts of diaminopropyltetramethyldisilane, 15-20 parts of octamethylcyclotetrasiloxane, 1-3 parts of high molecular weight active group N / A, 2-3 parts of sodium carbonate, 3-5 parts of alkylphenol polyoxyethylene ether, 4-7 parts of polyether silicone oil, 2-5 parts of ethyltrimethoxysilane, 5-7 parts of polyterephthalic acid, 2-3 parts of nylon B6, and 4-8 parts of tribasic lead sulfate.

[0049] The N / A polymeric active groups used in this invention are copolymers of active groups produced by the polymer synthesis plant of Hangzhou Xinqiao Biotechnology Co., Ltd. Diaminopropyltetramethyldisilane is a silane coupling agent produced by Hubei Changfu Chemical Co., Ltd., which is also commercially available. Nylon B6 is a coupling agent produced by Dongguan Hairun Plastics & Chemical Co., Ltd., which is also commercially available.

[0050] Example 2

[0051] The difference between this embodiment and Embodiment 1 is that, according to the embodiment of the present invention, the oiling agent for the superior processable carbon fiber precursor, by weight, comprises: 15 parts of pure water, 3 parts of diaminopropyltetramethyldisilane, 18 parts of octamethylcyclotetrasiloxane, 3 parts of high molecular weight active group N / A, 3 parts of sodium carbonate, 5 parts of alkylphenol polyoxyethylene ether, 6 parts of polyether silicone oil, 6 parts of ethyltrimethoxysilane, 5 parts of polyterephthalic acid, 3 parts of nylon B6, and 8 parts of tribasic lead sulfate.

[0052] Example 3

[0053] The difference between this embodiment and Embodiment 2 is that, according to the embodiment of the present invention, the oiling agent for the superior processability of carbon fiber precursor, by weight, comprises: 21 parts of pure water, 4 parts of diaminopropyltetramethyldisilane, 16 parts of octamethylcyclotetrasiloxane, 2 parts of high molecular weight active group N / A, 3 parts of sodium carbonate, 4 parts of alkylphenol polyoxyethylene ether, 5 parts of polyether silicone oil, 5 parts of ethyltrimethoxysilane, 7 parts of polyterephthalic acid, 2 parts of nylon B6, and 5 parts of tribasic lead sulfate.

[0054] Example 4

[0055] like Figures 3-13 As shown, the present invention also provides a preparation process for an oiling agent for carbon fiber precursor with excellent processability, comprising the following steps:

[0056] S1. After diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane were subjected to alkaline catalysis and ring-opening polymerization in catalytic tank 18 for 2 hours, the molecularly active group N / A was slowly added dropwise.

[0057] S2. After 1 hour of catalytic reaction, the reactants are transported to the emulsification tank 3 through the conveying pipe 17. The reaction is terminated when the viscosity of the reactants is qualified by the flow sensor 32 in the emulsification tank 3. The heating plate 36 is controlled by the temperature sensor 33 to keep the reactants at 60°C.

[0058] S3. After the reaction is terminated, add alkylphenol polyoxyethylene ether and slowly add metered pure water to emulsify into a stable emulsion.

[0059] Specifically, in S4, the emulsion is thoroughly mixed with polyether silicone oil, ethyltrimethoxysilane, nylon b6 and tribasic lead sulfate in a ratio of 10:3:1:1:4, and then a metered amount of pure water is slowly added to emulsify it into a stable emulsion.

[0060] During mixing, the mixture is stirred by the second motor 14 at a speed of 50 r / min.

[0061] Example 5

[0062] like Figures 3-13 As shown, the difference between this embodiment and Embodiment 4 lies in the preparation process of the oiling agent for the carbon fiber precursor with excellent processability, which includes the following steps:

[0063] S1. After diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane were subjected to alkaline catalysis and ring-opening polymerization in catalytic tank 18 for 2 hours, the polymeric active group N / A was slowly added dropwise.

[0064] S2. After 3 hours of catalytic reaction, the reactants are transported to the emulsification tank 3 through the conveying pipe 17. The reaction is terminated when the viscosity of the reactants is qualified by the flow sensor 32 in the emulsification tank 3. The heating plate 36 is controlled by the temperature sensor 33 to keep the reactants at 60°C.

[0065] S3. After the reaction is terminated, add alkylphenol polyoxyethylene ether and slowly add metered pure water to emulsify into a stable emulsion.

[0066] Specifically, in S4, the emulsion is thoroughly mixed with polyether silicone oil, ethyltrimethoxysilane, nylon b6 and tribasic lead sulfate in a ratio of 10:3:1:1:4, and then slowly emulsified with metered pure water to form a stable emulsion.

[0067] During mixing, the mixture is stirred by the second motor 14 at a speed of 80 r / min.

[0068] Example 6

[0069] like Figures 3-13 As shown, the difference between this embodiment and Embodiment 5 lies in the preparation process of the oiling agent for the excellent processability of carbon fiber precursor, which includes the following steps:

[0070] S1. After diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane were subjected to alkaline catalysis and ring-opening polymerization in catalytic tank 18 for 1.5 hours, the polymeric active group N / A was slowly added dropwise.

[0071] S2. After 1 hour of catalytic reaction, the reactants are transported to the emulsification tank 3 through the conveying pipe 17. The reaction is terminated when the viscosity of the reactants is qualified by the flow sensor 32 in the emulsification tank 3. The heating plate 36 is controlled by the temperature sensor 33 to keep the reactants at 40°C.

[0072] S3. After the reaction is terminated, add alkylphenol polyoxyethylene ether and slowly add metered pure water to emulsify into a stable emulsion.

[0073] Specifically, in step S4, the emulsion is thoroughly mixed with polyether silicone oil, ethyltrimethoxysilane, nylon B6, and tribasic lead sulfate in a ratio of 10:3:1:1:4, and then slowly emulsified with metered pure water to form a stable emulsion. During mixing, the mixture is stirred by a second motor 14 at a speed of 55 r / min.

[0074] Example 7

[0075] like Figures 3-13 As shown, the difference between this embodiment and embodiment 6 is that the present invention also provides an apparatus for preparing an oiling agent for carbon fiber precursor with excellent processability, including: the preparation apparatus of any one of embodiments 4-6, the preparation apparatus including a base plate 1, a catalytic mechanism, a stirring mechanism, a homogenization mechanism and a control mechanism;

[0076] The catalytic mechanism is used to catalyze the production of oil for high-performance carbon fiber precursor. The catalytic mechanism includes a frame 2 and a catalytic tank 18. The frame 2 is installed on one side of the base plate 1. The catalytic tank 18 is fixedly connected to the top of the frame 2. Two partitions 23 are fixedly connected inside the catalytic tank 18. Three feeding hoppers 19 are installed on the top of the catalytic tank 18. A third motor 20 is installed on one side of the catalytic tank 18. The rotating shaft of the third motor 20 is fixedly connected to a rotating rod 22 through a coupling. One end of the rotating rod 22 passes through the partition 23, and the other end of the rotating rod 22 is rotatably connected to the inside of the catalytic tank 18 through a rotating shaft. Several first stirring blades 31 are fixedly connected to the outside of the rotating rod 22. Three conveying pipes 17 are connected to the bottom of the catalytic tank 18. Solenoid valves 16 are installed on the conveying pipes 17.

[0077] The stirring mechanism is used to accelerate the emulsification of the materials. The stirring mechanism includes an emulsification tank 3 and a water pump 12. Both the emulsification tank 3 and the water pump 12 are installed on the top of the base plate 1. A second motor 14 is installed on the top of the emulsification tank 3. The rotating shaft of the second motor 14 is fixedly connected to a rod 35. The rod 35 is located inside the emulsification tank 3. A second stirring blade 34 is fixedly connected to the outside of the rod 35. The water inlet of the water pump 12 is connected to an inlet pipe 13. One end of the inlet pipe 13 passes through one side of the emulsification tank 3. The water outlet of the water pump 12 is connected to a delivery pipe 11.

[0078] The homogenization mechanism is used for homogenization reaction during oil production. The homogenization mechanism includes a cylinder 7, which is installed on the top of the base plate 1. A first motor 8 is installed on the top of the cylinder 7. A shell 25 is installed inside the cylinder 7. A discharge pipe 24 is connected to one side of the shell 25, and a pipe 27 is connected to the other side of the shell 25. A connecting rod 28 is rotatably installed inside the shell 25 via a rotating shaft. A blade 26 is fixedly connected to one end of the connecting rod 28. Gears 29 are fixedly connected to both the other end of the connecting rod 28 and the rotating shaft of the first motor 8. The two gears 29 are meshed and connected. One end of the infusion pipe 11 is connected to the outside of the pipe 27. A valve 6 is installed on one side of the cylinder 7.

[0079] The control mechanism is used to operate the power equipment and conduct production testing. The control mechanism includes a housing 4, a microcontroller 30, and a touch screen 5. The housing 4 is installed on the top of the base plate 1, the microcontroller 30 is installed inside the housing 4, and the touch screen 5 is installed on one side of the frame 2. Temperature sensors 33 are installed inside the catalytic tank 18 and the emulsification tank 3, and a flow sensor 32 is installed inside the emulsification tank 3.

[0080] By adopting the above technical solution, when using this invention, an emulsifying tank 3, a catalytic tank 18, and a cylinder 7 are installed on the base plate 1 and the frame 2. The emulsifying tank 3 realizes the catalytic and polymerization reaction of the oil agent, and the oil agent is transported to the emulsifying tank 3 via the conveying pipe 17. The second motor 14 drives the second stirring blade 34 to carry out the emulsification and stirring reaction of the oil agent. Finally, through the cylinder 7, the first motor 8 drives two gears 29 to mesh and transmit power, thereby driving the blades 26 inside the shell 25 to perform homogenization of the oil agent. This invention shortens the production process of the oil agent and reduces production costs. In the production process, after diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane undergo alkaline catalysis and ring-opening polymerization in the catalytic tank 18 for 1 to 2.5 hours, the high molecular weight active group N / A is slowly added dropwise to catalyze the reaction. After 1.5 to 2 hours, the mixture is conveyed to the emulsification tank 3 through the conveying pipe 17. The reaction is terminated when the viscosity of the reactant is qualified by the flow sensor 32 inside the emulsification tank 3. The heating plate 36 is controlled by the temperature sensor 33 to keep the reactants at 60°C. Based on the synthesis of the oil agent, a high molecular reactive group M is embedded, so that the oil agent maintains good heat resistance, antistatic properties and spinnability, and can also significantly improve the overall processability of carbon fiber to meet the application requirements of special applications. At the same time, when the present invention is used, the data detected by the flow sensor 32 and the temperature sensor 33 are transmitted in real time to the touch screen 5 through the single-chip microcomputer 30 inside the box 4. The single-chip microcomputer 30 determines whether to start and stop the power equipment according to the preset data in the single-chip microcomputer 30, so as to realize the data detection of the oil agent and the automated production.

[0081] Example 8

[0082] like Figures 4-13 As shown, the difference between this embodiment and embodiment 7 is that the electrical control terminal of the microcontroller 30 is electrically connected to the first motor 8, the second motor 14, the solenoid valve 16, the third motor 20 and the water pump 12 via wires. The signal output terminals of the flow sensor 32 and the temperature sensor 33 are both connected to the signal input terminal of the microcontroller 30, and the signal output terminal of the microcontroller 30 is connected to the signal input terminal of the touch screen 5.

[0083] By adopting the above technical solution, the microcontroller 30 can control the start and stop of the first motor 8, the second motor 14, the solenoid valve 16, the third motor 20 and the water pump 12 during use, and can receive signals from the flow sensor 32 and the temperature sensor 33 and send them to the touch screen 5 for display.

[0084] Specifically, a connecting plate 9 is fixedly connected to the outside of the cylinder 7, and a through hole 10 is provided on the connecting plate 9.

[0085] By adopting the above technical solution, the connecting plate 9 can be installed on the base plate 1 by passing the bolt through the through hole 10.

[0086] Specifically, a buckle 15 is installed on one side of the frame 2, and the outside of the feed pipe 17 is located inside the buckle 15.

[0087] By adopting the above technical solution, the buckle 15 can protect the surface of the feed tube 17 and prevent the feed tube 17 from getting tangled and detached.

[0088] Specifically, an observation window 21 is embedded on one side of the emulsification tank 3.

[0089] By adopting the above technical solution, the operator can observe the emulsification and stirring inside the emulsification tank 3 through the observation window 21.

[0090] Specifically, a heating plate 36 is installed inside the emulsification tank 3.

[0091] By adopting the above technical solution, the heating plate 36 can heat the crude oil inside the emulsification tank 3.

[0092] Specifically, the number of the first stirring blades 31 is no less than five.

[0093] Through the specific embodiments described above, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the specific embodiments described above. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

[0094] Experimental results based on Figure 1 and Figure 2 Data shows that by changing the amount of oil raw materials required for excellent processability, changing the order and steps of addition, optimizing the preparation process and the preparation equipment, the tensile strength of carbon fibers can be increased and the fiber density reduced, thereby improving the processability of carbon fibers.

[0095] In summary, different reaction raw materials can achieve different results depending on the specific process. For example, changing the emulsification tank and stirring structure can shorten the emulsification time, and changing the catalyst can have a positive impact on the emulsification results. All of these are related to the required process specifications.

Claims

1. An apparatus for preparing an oiling agent for carbon fiber precursor with excellent processability, characterized in that, The preparation apparatus includes a base plate (1); The catalytic mechanism is used to catalyze the production of oils for high-performance carbon fiber precursors. The catalytic mechanism includes a frame (2) and a catalytic tank (18), wherein the frame (2) is mounted on one side of the base plate (1). The catalyst tank (18) is fixedly connected to the top of the frame (2). Two partitions (23) are fixedly connected inside the catalyst tank (18). Three feeding hoppers (19) are installed on the top of the catalyst tank (18). A third motor (20) is installed on one side of the catalyst tank (18). The rotating shaft of the third motor (20) is fixedly connected to a rotating rod (22) via a coupling. One end of the rotating rod (22) passes through the partition (23), and the other end of the rotating rod (22) is rotatably connected to the inside of the catalyst tank (18) via a rotating shaft. Several first stirring blades (31) are fixedly connected to the outside of the rotating rod (22). Three conveying pipes (17) are connected to the bottom of the catalyst tank (18). A solenoid valve (16) is installed on the feed pipe (17); A stirring mechanism is used to accelerate the emulsification of materials. The stirring mechanism includes an emulsification tank (3) and a water pump (12), both of which are installed on the top of the base plate (1). A second motor (14) is installed on the top of the emulsification tank (3). A rod (35) is fixedly connected to the rotating shaft of the second motor (14). The rod (35) is located inside the emulsification tank (3). A second stirring blade (34) is fixedly connected to the outside of the rod (35). The inlet of the water pump (12) is connected to an inlet pipe (13). One end of the inlet pipe (13) passes through one side of the emulsification tank (3). The outlet of the water pump (12) is connected to a delivery pipe (11). The homogenization mechanism is used to perform homogenization reaction during oil production. The homogenization mechanism includes a cylinder (7), which is installed on the top of the base plate (1). A first motor (8) is installed on the top of the cylinder (7). A shell (25) is installed inside the cylinder (7). A discharge pipe (24) is connected to one side of the shell (25), and a pipe (27) is connected to the other side of the shell (25). A connecting rod (28) is rotatably installed inside the shell (25) via a rotating shaft. A blade (26) is fixedly connected to one end of the connecting rod (28). A gear (29) is fixedly connected to the other end of the connecting rod (28) and the rotating shaft of the first motor (8). The two gears (29) mesh with each other. One end of the infusion pipe (11) is connected to the outside of the pipe (27). A valve (6) is installed on one side of the cylinder (7). The control mechanism is used to operate the power equipment and conduct production testing. The control mechanism includes a housing (4), a microcontroller (30), and a touch screen (5). The housing (4) is installed on the top of the base plate (1). The microcontroller (30) is installed inside the housing (4). The touch screen (5) is installed on one side of the frame (2). Temperature sensor 2 (33) is installed inside the catalytic tank (18) and the emulsification tank (3). Flow sensor 1 (32) is installed inside the emulsification tank (3).

2. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 1, characterized in that, The electrical control terminal of the microcontroller (30) is electrically connected to the first motor (8), the second motor (14), the solenoid valve (16), the third motor (20), and the water pump (12) via wires. The signal output terminals of the flow sensor (32) and the temperature sensor (33) are both connected to the signal input terminal of the microcontroller (30). The signal output terminal of the microcontroller (30) is connected to the signal input terminal of the touch screen (5).

3. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 1, characterized in that, A connecting plate (9) is fixedly connected to the outside of the cylinder (7), and a through hole (10) is provided on the connecting plate (9).

4. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 1, characterized in that, A buckle (15) is installed on one side of the frame (2), and the outside of the feed pipe (17) is located inside the buckle (15).

5. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 1, characterized in that, An observation window (21) is fitted on one side of the emulsification tank (3).

6. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 3, characterized in that, A heating plate (36) is installed inside the emulsification tank (3).

7. The apparatus for preparing oil for superior anisotropic carbon fiber precursor according to claim 3, characterized in that, The number of first stirring blades (31) is no less than five.

8. A preparation process for an oiling agent preparation apparatus for carbon fiber precursor with excellent processability according to any one of claims 1-7, characterized in that, Specifically, the following steps are included: S1. Weigh the following by weight: 20-25 parts pure water, 2-4 parts diaminopropyltetramethyldisilane, 15-20 parts octamethylcyclotetrasiloxane, 1-3 parts N / A high molecular weight active group, 2-3 parts sodium carbonate, 3-5 parts alkylphenol polyoxyethylene ether, 4-7 parts polyether silicone oil, 2-5 parts ethyltrimethoxysilane, 5-7 parts polyterephthalic acid, 2-3 parts nylon b6 and 4-8 parts tribasic lead sulfate; S2. Diaminopropyltetramethyldisilane, octamethylcyclotetrasiloxane, and sodium carbonate are added to the catalytic tank (18). After diaminopropyltetramethyldisilane and octamethylcyclotetrasiloxane undergo alkaline catalysis and ring-opening polymerization in the catalytic tank (18) for 1-2 hours, poly(terephthalic acid) is slowly added dropwise. The high molecular active group N / A is added. S3. After 1.5 to 2 hours of catalytic reaction, the mixture is transported to the emulsification tank (3) through the conveying pipe (17). The viscosity of the reactant is gradually reduced to qualified (36) by the flow sensor (32) in the emulsification tank (3) to keep the reactant at 60°C. The reaction is then terminated, and the heating plate is controlled according to the temperature sensor (33). S4. After the reaction is terminated, add alkylphenol polyoxyethylene ether, and mix the emulsion with polyether silicone oil, ethyltrimethoxysilane, nylon B6 and tribasic lead sulfate in a ratio of 10:3:1:1:

4. Slowly add metered pure water to emulsify into a stable emulsion.

9. The preparation process of the oiling agent for carbon fiber precursor with excellent processability according to claim 1, characterized in that, In S4, the finished product must be stirred by the second motor (14) at a speed of 60r / min to 120r / min.

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