Alkaline zinc-manganese battery diaphragm and preparation process thereof

Abstract

The invention discloses an alkaline zinc-manganese battery diaphragm and a preparation process thereof, and belongs to the technical field of preparation of alkaline zinc-manganese battery diaphragms.The alkaline zinc-manganese battery diaphragm comprises a polymerization kettle, a transmission device is installed at the top of the polymerization kettle, and a mechanical sealing piece is arranged between the transmission device and the polymerization kettle. When the pressurizing disc slides downwards, the pressure intensity corresponding to the position below the pressurizing disc in the polymerization kettle can be increased, when the pressurizing disc slides upwards, the pressure intensity corresponding to the position below the pressurizing disc in the polymerization kettle is gradually recovered, and according to the chemical kinetics principle, the collision frequency of reactant molecules can be increased by increasing pressure, so that the reaction rate is increased; for the polymerization reaction of alkene monomers, proper pressurization is beneficial to shortening the reaction time and improving the production efficiency, pressurization is beneficial to more sufficient contact and reaction of reactants, reduction of residues of unreacted monomers and improvement of the utilization rate of raw materials, meanwhile, the pressure intensity below the pressurization disc is changed in a small range, and the defoaming effect can be achieved to a certain extent.

Description

Technical Field

[0001] The present invention belongs to the technical field of the preparation of separators for alkaline zinc-manganese batteries, and particularly relates to a separator for an alkaline zinc-manganese battery and a preparation process thereof. Background Art

[0002] The preparation process of the separator for an alkaline zinc-manganese battery involves multiple steps, aiming to ensure that the separator has good isolation performance, ion conductivity, and alkali resistance. The preparation process of the separator for an alkaline zinc-manganese battery includes substrate selection and treatment, preparation of an aqueous solution of vinyl monomer, adsorption of the vinyl monomer solution on a non-woven substrate, electron beam irradiation, post-treatment, and performance testing and finishing. The preparation of the aqueous solution of vinyl monomer includes monomer selection and solution preparation. In monomer selection, vinyl monomers containing anionic groups are selected, such as methacrylic acid, acrylic acid, maleic anhydride, and sodium styrene sulfonate. These monomers can undergo graft copolymerization reactions with fibers to form hydrophilic polymer chains. In solution preparation, the vinyl monomer, water, tackifier, and wetting agent are mixed in a certain proportion to prepare an aqueous solution of vinyl monomer.

[0003] Some invention patents in the technical field of the preparation of separators for alkaline zinc-manganese batteries are disclosed in the prior art. Among them, the invention patent with the publication number CN116722304A discloses a high-permeability aramid-coated separator and a preparation process thereof, including the following steps: mixing an aramid solution and a polyvinyl alcohol solution evenly for mixed modification, and the mass ratio of aramid to polyvinyl alcohol is 1:1 - 1; during the mixing process, amide groups on aramid nanofiber molecules, hydroxyl groups on polyvinyl alcohol molecules, and hydroxyl groups on water molecules form strong hydrogen bonds with each other and establish an interconnected polymer network. The temperature of the mixed modification is 11 - 31°C, and the time of the mixed modification is 21 - 61 min. The molecular weight of the polyvinyl alcohol is 146111 - 18611; after the mixed modification is completed, an antifoaming agent and a binder are added, and after mixing evenly, a coating slurry is obtained. The coating slurry is coated on one or both sides of the separator, and after drying, solvent exchange is carried out through a pure water tank, and finally dried to obtain the aramid-coated separator, which has better performance in terms of air permeability and thermal stability. However, there are still some deficiencies in the use of this technical solution. By adding an antifoaming agent to eliminate the foam in the polymerization reactant, it will bring some negative impacts in terms of increasing production costs. If the addition amount of the antifoaming agent is too small, the defoaming effect is poor, and if it is excessive, it will increase the impurities in the polymerization reactant. Moreover, the defoaming effect of the antifoaming agent is also related to its dispersion effect to some extent, which will further limit the polymerization reaction rate, resulting in a decrease in the raw material utilization rate and further increasing the production cost.

[0004] Based on this, the present invention designs a separator for an alkaline zinc-manganese battery and a preparation process thereof to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to solve the problems that in the existing production technology for alkaline zinc-manganese battery diaphragms, adding defoamers to eliminate foam in polymerization reactants will bring some negative impacts in terms of increasing production costs. If the amount of defoamer added is too small, the defoaming effect is poor; if it is excessive, it will increase the impurities in the polymerization reactants, and there is also a certain correlation between the defoaming effect of the defoamer and its dispersion effect, which will further limit the polymerization reaction rate, resulting in a decrease in the utilization rate of raw materials and further increasing production costs. Therefore, an alkaline zinc-manganese battery diaphragm and its preparation process are proposed.

[0006] To achieve the above object, the present invention adopts the following technical solutions: The preparation process of the alkaline zinc-manganese battery diaphragm includes the following steps: Substrate selection and treatment: Select alkali-resistant non-woven fibers as the substrate. The substrate should use staple fibers with a fineness of no more than 2.0 denier and be prepared by the wet papermaking non-woven process. Preparation of the aqueous solution of vinyl monomer: The aqueous solution of vinyl monomer contains vinyl monomers with anionic groups, water, thickeners and wetting agents. The mass concentration of the vinyl monomer is between 5% and 40%, the mass percentage of water is 70% - 89%, the vinyl monomer with anionic groups is 10% - 29%, and the addition amounts of the thickener and the wetting agent are adjusted according to specific requirements; Adsorption of the vinyl monomer solution on the non-woven substrate: Use the coating process to evenly adsorb the aqueous solution of vinyl monomer into the non-woven substrate. The amount of the adsorbed aqueous solution of vinyl monomer is 100% - 400% of the mass of the non-woven substrate. Before the coating process, the substrate is first subjected to hot pressing treatment to make it flat; Electron beam irradiation: Continuously irradiate the non-woven substrate adsorbed with the aqueous solution of vinyl monomer through an electron beam irradiation device. During the irradiation process, the vinyl monomers adsorbed on the fiber surface will undergo graft copolymerization reactions with the fibers, and at the same time, homopolymerization of the vinyl monomers and crosslinking between graft polymer molecules, homopolymer molecules and other polymer molecules in the graft solution will also occur; Post-treatment: Wash off the homopolymers and unreacted monomers by water, and then remove the water by drying; The equipment for preparing the aqueous solution of vinyl monomer includes a polymerization kettle. A transmission device is installed at the top of the polymerization kettle. A mechanical seal is provided between the transmission device and the polymerization kettle. A stirring device connected to the transmission device is rotatably connected inside the polymerization kettle. A pressurizing component for increasing the pressure of the polymerization reaction environment is embedded inside the polymerization kettle corresponding to the stirring device; A vibration groove is opened at the bottom of the stirring device, and a vibration component for providing an exciting force to the polymerization reaction environment is connected to the bottom of the polymerization kettle corresponding to the vibration groove.

[0007] As a further description of the above technical solution: The polymerization kettle includes an inner cylinder, an outer jacket is sleeved on the outer wall of the inner cylinder, a spiral blade is nested between the jacket and the inner cylinder, a first input pipe is communicated with one end of the jacket outer wall corresponding to the spiral blade, and a first output pipe is communicated with the other end of the jacket outer wall corresponding to the spiral blade.

[0008] As a further description of the above technical solution: Exhaust holes are formed in the outer wall of the stirring device, an exhaust sleeve is rotatably connected to the outer wall of the stirring device corresponding to the exhaust holes through two sealing bearings, a second output pipe is communicated with the outer wall of the exhaust sleeve, and the other end of the second output pipe is communicated with the first input pipe.

[0009] As a further description of the above technical solution: The pressurizing component includes a pressurizing disc sleeved inside the inner cylinder, the pressurizing disc is slidably connected to the stirring device, a sealing groove is formed in the outer wall of the pressurizing disc, and a sealing ring is sleeved in the sealing groove; Both sides of the top of the pressurizing disc are connected with pressurizing members, and the two pressurizing members are meshed with the same driving bevel gear, and the driving bevel gear is sleeved on the stirring device.

[0010] As a further description of the above technical solution: The pressurizing member includes a mounting plate connected to the inner top of the inner cylinder, the other end of the mounting plate is rotatably connected with a special-shaped shaft, a driven bevel gear is sleeved at the end of the special-shaped shaft, the driven bevel gear is meshed with the driving bevel gear, a transfer sleeve is rotatably sleeved at the U-shaped node of the special-shaped shaft, a rocker is sleeved on the transfer sleeve, and the other end of the rocker is rotatably connected with a transfer seat connected to the pressurizing disc.

[0011] As a further description of the above technical solution: An air suction pipe is clamped above the pressurizing disc on the inner cylinder and the jacket, a one-way throttling component is sleeved in the other port of the air suction pipe, the one-way throttling component includes a mounting disc connected to the other end of the air suction pipe, a filter disc is sleeved in one port of the mounting disc, a sleeve is clamped in the other port of the mounting disc, a bucket-shaped cover is clamped in the sleeve, a spherical valve is sleeved in the bucket-shaped cover, the other end of the spherical valve is connected with a movable shaft, the other end of the movable shaft is sleeved with a support disc clamped in the sleeve, and a first spring is sleeved on the movable shaft, and the spherical valve is elastically supported and connected with the support disc through the first spring.

[0012] As a further description of the above technical solution: The vibration component includes a driving box connected to the bottom of the jacket, a driving shaft is rotatably connected to the top of the driving box, a driving wheel is sleeved at the end of the driving shaft, two vibration bearings are sleeved at the other end of the driving shaft, and the driving shaft is sleeved in a vibration groove through the two vibration bearings; A second input pipe is connected to the outer wall of the drive box in the tangential direction. The other end of the second input pipe is connected to a pressure relief pipe, and the other end of the pressure relief pipe is connected to the inside of the inner cylinder.

[0013] As a further description of the above technical solution: An elastic sealing member is sleeved on the drive shaft. The elastic sealing member includes a fixed sleeve sleeved on the drive shaft. A plurality of sliding grooves arranged in an annular array are formed on the outer wall of the fixed sleeve. A slider is slidably connected in the sliding groove. The end of the slider is connected to a second spring. The slider is elastically supported and connected to the inner end surface of the sliding groove through the second spring. A sealing disc is sleeved on the outer wall of the fixed sleeve. The inner wall of the sealing disc is connected to the slider, and the top of the sealing disc abuts against the bottom of the stirring device.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are as follows: 1. In the present invention, when the pressure increasing disc slides downward, the pressure intensity below the pressure increasing disc inside the polymerization kettle will increase. When the pressure increasing disc slides upward, the pressure intensity below the pressure increasing disc inside the polymerization kettle gradually recovers. According to the principle of chemical kinetics, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate. For the polymerization reaction of vinyl monomers, appropriate pressure increase helps to shorten the reaction time and improve production efficiency. Pressurization helps the reactants to contact and react more fully, reduces the residue of unreacted monomers, and improves the utilization rate of raw materials. At the same time, changing the pressure intensity below the pressure increasing disc within a small range can play a role in defoaming to a certain extent.

[0015] 2. In the present invention, the vibration force directly acts on the inside of the polymerization reaction through the stirring device. Vibration disperses, diffuses or floats the air bubbles in the polymerization reactants to the surface, thereby removing the air bubbles in the polymerization reactants without using defoaming agents, avoiding increasing production costs.

[0016] 3. In the present invention, the temperature gradually increases from bottom to top inside the inner cylinder corresponding to the lower part of the pressure increasing disc. When air flows through the drive shaft and the stirring device, heat exchange will occur through the stirring device, thereby being able to reduce the influence of the temperature increase effect caused by pressurization. Since the heated air flows from top to bottom along the spiral blades, on the one hand, it can play a role in maintaining a constant temperature, reducing the interference of the outside world on the polymerization reaction inside the inner cylinder, and on the other hand, it can play a role in equalizing the temperature of the polymerization reaction inside the inner cylinder, making the temperature of the upper and lower layers inside the polymerization reactants balanced. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall structure of the alkaline zinc-manganese battery separator and its preparation process proposed by the present invention; Figure 2Schematic diagram of the structure of the one-way current intercepting component in the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention; Figure 3 Schematic diagram of the structure of the one-way current intercepting component disassembled in the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention; Figure 4 Schematic diagram of the structure of the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention from another perspective; Figure 5 Schematic diagram of the structure of the vibration component in the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention; Figure 6 Schematic diagram of the structure of the vibration component disassembled in the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention; Figure 7 For the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention Figure 6 Enlarged schematic diagram of the structure at B; Figure 8 Schematic diagram of the structure of the separator for alkaline zinc-manganese batteries and its preparation process disassembled proposed by the present invention; Figure 9 For the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention Figure 8 Enlarged schematic diagram of the structure at A; Figure 10 Cross-sectional schematic diagram of the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention; Figure 11 Schematic diagram of the structure of the polymerization kettle disassembled in the separator for alkaline zinc-manganese batteries and its preparation process proposed by the present invention.

[0018] Legend: 1. Polymerization kettle; 101. Inner cylinder; 102. Jacket; 103. Spiral blade; 104. First input pipe; 105. First output pipe; 2. Mechanical seal; 3. Transmission device; 4. Stirring device; 5. Pressurization assembly; 501. Pressurization disc; 502. Sealing ring; 503. Pressurizing part; 5031. Mounting plate; 5032. Special-shaped shaft; 5033. Driven bevel gear; 5034. Adapter sleeve; 5035. Rocker; 5036. Adapter seat; 504. Driving bevel gear; 6. One-way throttling assembly; 601. Mounting disc; 602. Filter disc; 603. Sleeve; 604. Hopper-shaped cover; 605. Ball valve; 606. Support disc; 607. Movable shaft; 608. First spring; 7. Vibration assembly; 701. Driving box; 702. Driving shaft; 703. Driving wheel; 704. Vibration bearing; 705. Eccentric shaft; 706. Elastic plugging part; 7061. Fixed sleeve; 7062. Slide block; 7063. Second spring; 7064. Plugging disc; 7065. Chute; 8. Second input pipe; 9. Exhaust sleeve; 10. Pressure relief pipe. Detailed implementation manners

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to the attached Figure 1 - attached Figure 11 , the present invention provides a technical solution: a preparation process for an alkaline zinc-manganese battery separator, which is characterized by including the following steps: Substrate selection and treatment: Select alkali-resistant non-woven fiber as the substrate. The substrate should use staple fibers with a fineness of no more than 2.0 denier and be prepared by the wet papermaking non-woven process; Preparation of the aqueous solution of vinyl monomer: The aqueous solution of vinyl monomer contains vinyl monomers with anionic groups, water, a thickening agent, and a wetting agent. The mass concentration of the vinyl monomer is between 5% and 40%, the mass percentage of water is 70% - 89%, the vinyl monomer with anionic groups is 10% - 29%, and the addition amounts of the thickening agent and the wetting agent are adjusted according to specific requirements; Adsorption of the vinyl monomer solution on the non-woven substrate: Use the coating process to evenly adsorb the aqueous solution of vinyl monomer into the non-woven substrate. The amount of the adsorbed aqueous solution of vinyl monomer is 100% - 400% of the mass of the non-woven substrate. Before the coating process, the substrate is first heat-pressed to make it flat; Electron beam irradiation: The non-woven fabric substrate adsorbed with the aqueous solution of vinyl monomer is continuously irradiated through an electron beam irradiation device. During the irradiation process, the vinyl monomer adsorbed on the fiber surface will undergo graft copolymerization reaction with the fiber. At the same time, homopolymerization of the vinyl monomer and crosslinking between the graft polymer molecules, homopolymer molecules and other polymer molecules in the graft solution will also occur; Post-treatment: Remove the homopolymer and unreacted monomer by washing with water, and then remove the water by drying; The equipment for preparing the aqueous solution of vinyl monomer includes a polymerization kettle 1. A transmission device 3 is installed at the top of the polymerization kettle 1. A mechanical seal 2 is arranged between the transmission device 3 and the polymerization kettle 1. A stirring device 4 connected to the transmission device 3 is rotatably connected inside the polymerization kettle 1. A pressurizing component 5 for increasing the pressure of the polymerization reaction environment is embedded inside the polymerization kettle 1 corresponding to the stirring device 4; The bottom of the stirring device 4 is provided with a vibration groove, and a vibration component 7 for providing an exciting force to the polymerization reaction environment is connected to the bottom of the polymerization kettle 1 corresponding to the vibration groove.

[0021] Specifically, the polymerization kettle 1 includes an inner cylinder 101. A jacket 102 is sleeved on the outer wall of the inner cylinder 101. A spiral blade 103 is nested between the jacket 102 and the inner cylinder 101. One end of the jacket 102 corresponding to the spiral blade 103 is communicated with a first input pipe 104, and the other end of the jacket 102 corresponding to the spiral blade 103 is communicated with a first output pipe 105. Exhaust holes are provided on the outer wall of the stirring device 4. An exhaust sleeve 9 is rotatably connected to the outer wall of the stirring device 4 corresponding to the exhaust holes through two sealing bearings. The outer wall of the exhaust sleeve 9 is communicated with a second output pipe, and the other end of the second output pipe is communicated with the first input pipe 104.

[0022] The specific implementation method is as follows: The air entering the drive box 701 enters the drive shaft 702 through the pressure relief holes provided on the surface of the drive shaft 702, then flows into the stirring device 4 along the inner cavity of the drive shaft 702, and finally flows into the first input pipe 104 through the second output pipe, and then flows along the spiral blade 103 towards the first output pipe 105. Since the temperature gradually increases from bottom to top below the pressurizing disc 501 inside the inner cylinder 101, and the air flowing through the drive shaft 702 and the stirring device 4 will undergo heat exchange through the stirring device 4, the influence of the temperature rise effect caused by pressurization can be reduced. Since the heated air flows downward along the spiral blade 103.

[0023] Specifically, the pressurizing component 5 includes a pressurizing disc 501 sleeved inside the inner cylinder 101. The pressurizing disc 501 is slidably connected to the stirring device 4. A sealing groove is provided on the outer wall of the pressurizing disc 501, and a sealing ring 502 is sleeved in the sealing groove; On both sides of the top of the pressure increasing disc 501, there are pressure increasing components 503 connected. The two pressure increasing components 503 mesh with the same driving bevel gear 504. The driving bevel gear 504 is sleeved on the stirring device 4. The pressure increasing component 503 includes a mounting plate 5031 connected to the inner top of the inner cylinder 101. The other end of the mounting plate 5031 is rotatably connected with a special-shaped shaft 5032. A driven bevel gear 5033 is sleeved on the end of the special-shaped shaft 5032. The driven bevel gear 5033 meshes with the driving bevel gear 504. A transfer sleeve 5034 is rotatably sleeved at the U-shaped node of the special-shaped shaft 5032. A rocker 5035 is sleeved on the transfer sleeve 5034. The other end of the rocker 5035 is rotatably connected with a transfer seat 5036 connected to the pressure increasing disc 501. An air suction pipe is clamped above the pressure increasing disc 501 on the inner cylinder 101 and the jacket 102. A one-way throttling component 6 is sleeved in the other port of the air suction pipe. The one-way throttling component 6 includes a mounting disc 601 connected to the other end of the air suction pipe. A filter disc 602 is sleeved in one port of the mounting disc 601. A sleeve 603 is clamped in the other port of the mounting disc 601. A bucket-shaped cover 604 is clamped in the sleeve 603. A spherical valve 605 is sleeved in the bucket-shaped cover 604. The other end of the spherical valve 605 is connected with a movable shaft 607. The other end of the movable shaft 607 is sleeved with a support disc 606 clamped in the sleeve 603. A first spring 608 is sleeved on the movable shaft 607. The spherical valve 605 is elastically supported and connected to the support disc 606 through the first spring 608.

[0024] The implementation mode is specifically as follows: During stirring, the driving device 3 is started to drive the stirring device 4 to work inside the inner cylinder 101. During the operation of the stirring device 4, the driving bevel gear 504 will also rotate synchronously. The driving bevel gear 504 drives the driven bevel gear 5033. The diameter of the driving bevel gear 504 is larger than that of the driven bevel gear 5033. Therefore, the driving bevel gear 504 will drive the special-shaped shaft 5032 to accelerate through the driven bevel gear 5033. When the U-shaped node of the special-shaped shaft 5032 rotates from the lowest point to the highest point, the special-shaped shaft 5032 generates an upward pulling force on the rocker 5035 through the adapter sleeve 5034. One end of the rocker 5035 drives the adapter sleeve 5034 to rotate at the U-shaped node of the special-shaped shaft 5032. The other end of the rocker 5035 rotates inside the adapter seat 5036 and pulls the pressure increasing disc 501 to slide upward along the inner wall of the inner cylinder 101 through the adapter seat 5036. When the U-shaped node of the special-shaped shaft 5032 rotates from the highest point to the lowest point, the special-shaped shaft 5032 generates a downward pushing force on the rocker 5035 through the adapter sleeve 5034, and then pushes the pressure increasing disc 501 to slide downward along the inner wall of the inner cylinder 101. This process repeats in a cycle. During this process, the sealing ring 502 in the sealing groove opened on the pressure increasing disc 501 can effectively increase the sealing performance of the connection surface between the pressure increasing disc 501 and the inner wall of the inner cylinder 101. When the pressure increasing disc 501 slides downward, it will increase the pressure intensity below the corresponding pressure increasing disc 501 inside the polymerization kettle 1. When the pressure increasing disc 501 slides upward, the pressure intensity below the corresponding pressure increasing disc 501 inside the polymerization kettle 1 gradually recovers. According to the principle of chemical kinetics, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate.

[0025] Specifically, the vibration assembly 7 includes a driving box 701 connected to the bottom of the jacket 102. A driving shaft 702 is rotatably connected to the top of the driving box 701. A driving wheel 703 is sleeved at the end of the driving shaft 702. Two vibration bearings 704 are sleeved at the other end of the driving shaft 702. The driving shaft 702 is sleeved in the vibration groove through the two vibration bearings 704. A second input pipe 8 is communicated with the outer wall of the driving box 701 in the tangential direction. The other end of the second input pipe 8 is communicated with a pressure relief pipe 10. The other end of the pressure relief pipe 10 is communicated with the inside of the inner cylinder 101. An elastic plugging member 706 is sleeved on the driving shaft 702. The elastic plugging member 706 includes a fixed sleeve 7061 sleeved on the driving shaft 702. A plurality of sliding grooves 7065 arranged in a circular array are opened on the outer wall of the fixed sleeve 7061. A sliding block 7062 is slidably connected in the sliding groove 7065. One end of the sliding block 7062 is connected with a second spring 7063. The sliding block 7062 is elastically supported and connected to the inner end surface of the sliding groove 7065 through the second spring 7063. A plugging disc 7064 is sleeved on the outer wall of the fixed sleeve 7061. The inner wall of the plugging disc 7064 is connected with the sliding block 7062. The top of the plugging disc 7064 abuts against the bottom of the stirring device 4.

[0026] The implementation method is specifically as follows: As the pressure increasing disk 501 continuously rises, the air pressure above it gradually increases. Subsequently, the check valve on the second input pipe 8 opens, and the high-pressure air flows along the second input pipe 8 into the drive box 701 and directly acts on the drive wheel 703. Since the air flows into the drive box 701 in the radial direction, it will be able to push the drive wheel 703 to rotate rapidly to generate a rotational force. This rotational force is transmitted to the eccentric shaft 705 through the drive shaft 702, causing the eccentric shaft 705 to rotate accordingly. Due to the design of the eccentric shaft 705, a centrifugal force will be generated. This centrifugal force causes the vibration bearing 704 and the stirring device 4 to perform reciprocating motions, thereby generating a vibration force. The vibration force directly acts on the inside of the polymerization reaction through the stirring device 4. The vibration disperses, diffuses, or causes the air bubbles in the polymerization reactants to float to the surface.

[0027] Working principle, when in use: According to the performance requirements of the alkaline zinc-manganese battery separator, determine the types and proportions of the vinyl monomer, water, tackifier, and lubricant. Weigh accurately the required vinyl monomer, water, tackifier, and lubricant according to the formula ratio. First, inject water into the polymerization kettle 1, then slowly add the vinyl monomer into the water while stirring to promote dissolution, and then add the tackifier and lubricant in sequence, and continue stirring until completely dissolved to form a uniform aqueous solution of vinyl monomer. When stirring, the drive device 3 is started to drive the stirring device 4 to work inside the inner cylinder 101. During the operation of the stirring device 4, the driving bevel gear 504 will also be driven to rotate synchronously. The driving bevel gear 504 drives the driven bevel gear 5033. The diameter of the driving bevel gear 504 is larger than that of the driven bevel gear 5033. Therefore, the driving bevel gear 504 will drive the special-shaped shaft 5032 to accelerate through the driven bevel gear 5033. When the U-shaped node of the special-shaped shaft 5032 rotates from the lowest point to the highest point, the special-shaped shaft 5032 generates an upward pulling force on the rocker 5035 through the adapter sleeve 5034. One end of the rocker 5035 drives the adapter sleeve 5034 to rotate at the U-shaped node of the special-shaped shaft 5032. The other end of the rocker 5035 rotates inside the adapter seat 5036 and pulls the pressure increasing disc 501 to slide upward along the inner wall of the inner cylinder 101 through the adapter seat 5036. When the U-shaped node of the special-shaped shaft 5032 rotates from the highest point to the lowest point, the special-shaped shaft 5032 generates a downward pushing force on the rocker 5035 through the adapter sleeve 5034, and then pushes the pressure increasing disc 501 to slide downward along the inner wall of the inner cylinder 101. This process repeats in a cycle. During this process, the sealing ring 502 in the sealing groove opened on the pressure increasing disc 501 can effectively increase the sealing performance of the connection surface between the pressure increasing disc 501 and the inner wall of the inner cylinder 101. When the pressure increasing disc 501 slides downward, the pressure intensity below the pressure increasing disc 501 inside the polymerization kettle 1 will increase. When the pressure increasing disc 501 slides upward, the pressure intensity below the pressure increasing disc 501 inside the polymerization kettle 1 gradually recovers. According to the principle of chemical kinetics, increasing the pressure can increase the collision frequency of reactant molecules, thereby accelerating the reaction rate; During the downward movement of the pressure increasing disc 501, the air pressure above it decreases. A check valve is installed on the second input pipe 8 and is in a closed state at this time. Under the action of the low pressure, the spherical valve 605 moves towards the inner cylinder 101. During this process, the spherical valve 605 pushes the movable shaft 607 to slide inside the support disc 606 and squeezes the first spring 608 to cause elastic deformation. After the spherical valve 605 disengages from the funnel-shaped cover 604, air enters the inner cylinder 101 through the filter disc 602. During the upward movement stage of the pressure increasing disc 501, the first spring 608 performs an elastic reset movement. The first spring 608 pushes the spherical valve 605 to re-enter the funnel-shaped cover 604. As the pressure increasing disc 501 continues to rise, the air pressure above it gradually increases. Subsequently, the check valve on the second input pipe 8 opens, and the high-pressure air flows along the second input pipe 8 into the drive box 701 and directly acts on the drive wheel 703. Since the air flows into the drive box 701 in the radial direction, it will be able to push the drive wheel 703 to rotate rapidly to generate a rotational force. This rotational force is transmitted to the eccentric shaft 705 through the drive shaft 702, causing the eccentric shaft 705 to rotate accordingly. Due to the design of the eccentric shaft 705, an eccentric force will be generated. This centrifugal force causes the vibration bearing 704 and the stirring device 4 to perform reciprocating movements, thereby generating a vibration force. The vibration force acts directly on the inside of the polymerization reaction through the stirring device 4. The vibration disperses, diffuses, or causes the air bubbles in the polymerization reactant to float to the surface; The air entering the drive box 701 enters the drive shaft 702 through the pressure relief holes provided on the surface of the drive shaft 702, then flows along the inner cavity of the drive shaft 702 into the stirring device 4, and finally flows into the first input pipe 104 through the second output pipe, and then flows towards the first output pipe 105 along the spiral blade 103. Since the temperature gradually increases from bottom to top corresponding to the lower part of the pressure increasing disc 501 inside the inner cylinder 101, and the air will undergo heat exchange through the stirring device 4 during the process of flowing through the drive shaft 702 and the stirring device 4, the influence of the temperature increase effect caused by the pressure increase can be reduced.

[0028] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A process for preparing an alkaline zinc-manganese battery separator, characterized in that: The steps include: Substrate selection and treatment; Preparation of vinyl monomer aqueous solution: The vinyl monomer aqueous solution contains vinyl monomer containing anionic groups, water, tackifier and wetting agent. The mass concentration of vinyl monomer is between 5% and 40%, the mass percentage of water is 70% to 89%, the mass percentage of vinyl monomer containing anionic groups is 10% to 29%, and the addition amount of tackifier and wetting agent is adjusted according to specific needs; Adsorption of vinyl monomer solution onto nonwoven substrate; Electron beam irradiation; Post-treatment: removing homopolymer and unreacted monomer by washing with water, and then removing water by drying; The equipment for preparing an aqueous solution of olefin monomers comprises a polymerization kettle (1), a transmission device (3) is installed on the top of the polymerization kettle (1), a mechanical seal (2) is arranged between the transmission device (3) and the polymerization kettle (1), a stirring device (4) connected to the transmission device (3) is rotatably connected inside the polymerization kettle (1), and a pressurizing component (5) for increasing the pressure of the polymerization reaction environment is embedded in the polymerization kettle (1) corresponding to the stirring device (4); A vibration groove is provided at the bottom of the stirring device (4), and a vibration component (7) for providing an exciting force to the polymerization reaction environment is connected to the bottom of the polymerization kettle (1) corresponding to the vibration groove.

2. The process for preparing the alkaline zinc-manganese battery separator according to claim 1, characterized in that: The polymerization kettle (1) comprises an inner cylinder (101), the outer wall of the inner cylinder (101) is sleeved with a jacket (102), spiral blades (103) are nested between the jacket (102) and the inner cylinder (101), one end of the outer wall of the jacket (102) corresponding to the spiral blades (103) is connected to a first input pipe (104), and the other end of the outer wall of the jacket (102) corresponding to the spiral blades (103) is connected to a first output pipe (105).

3. The process for preparing the alkaline zinc-manganese battery separator according to claim 2, characterized in that: An exhaust hole is provided on the outer wall of the stirring device (4); an exhaust sleeve (9) is rotatably connected to the outer wall of the stirring device (4) corresponding to the exhaust hole via two sealing bearings; the outer wall of the exhaust sleeve (9) is connected to a second output pipe; the other end of the second output pipe is connected to the first input pipe (104).

4. The process for preparing the alkaline zinc-manganese battery separator according to claim 3, characterized in that: The boosting assembly (5) comprises a boosting disc (501) sleeved in the inner cylinder (101), the boosting disc (501) being slidably connected to the stirring device (4), a sealing groove being provided on the outer wall of the boosting disc (501), and a sealing ring (502) being sleeved in the sealing groove; Both sides of the top of the boosting disc (501) are connected to boosting parts (503), and the two boosting parts (503) are meshed with the same active bevel gear (504), and the active bevel gear (504) is sleeved on the stirring device (4).

5. The process for preparing the alkaline zinc-manganese battery separator according to claim 4, characterized in that: The supercharging component (503) comprises a mounting plate (5031) connected to the inner top of the inner cylinder (101); the other end of the mounting plate (5031) is rotatably connected to a special-shaped shaft (5032); the end of the special-shaped shaft (5032) is sleeved with a driven bevel gear (5033); the driven bevel gear (5033) and the driving bevel gear (504) are meshed with each other; an adapter sleeve (5034) is rotatably sleeved at a U-shaped node of the special-shaped shaft (5032); a rocker (5035) is sleeved on the adapter sleeve (5034); the other end of the rocker (5035) is rotatably connected to an adapter seat (5036) connected to the supercharging disc (501).

6. The process for preparing the alkaline zinc-manganese battery separator according to claim 5, characterized in that: An air intake pipe is clamped on the inner tube (101) and the jacket (102) above the corresponding booster disc (501); a one-way flow cutoff assembly (6) is sleeved in the other end of the air intake pipe; the one-way flow cutoff assembly (6) comprises a mounting disc (601) connected to the other end of the air intake pipe; a filter disc (602) is sleeved in one end of the mounting disc (601); a sleeve (603) is clamped in the other end of the mounting disc (601); a filter disc (602) is sleeved in the sleeve (603); A bucket-shaped cover (604) is provided, a spherical valve (605) is sleeved in the bucket-shaped cover (604), the other end of the spherical valve (605) is connected to a movable shaft (607), the other end of the movable shaft (607) is sleeved with a support plate (606) clamped in a sleeve (603), a first spring (608) is sleeved on the movable shaft (607), and the spherical valve (605) is elastically supported and connected to the support plate (606) via the first spring (608).

7. The process for preparing the alkaline zinc-manganese battery separator according to claim 6, characterized in that: The vibration assembly (7) comprises a drive box (701) connected to the bottom of the jacket (102); the top of the drive box (701) is rotatably connected to a drive shaft (702); the end of the drive shaft (702) is sleeved with a drive wheel (703); the other end of the drive shaft (702) is sleeved with two vibration bearings (704); the drive shaft (702) is sleeved in the vibration groove via the two vibration bearings (704); The outer wall of the drive box (701) is connected to a second input pipe (8) along a tangential direction, the other end of the second input pipe (8) is connected to a pressure relief pipe (10), and the other end of the pressure relief pipe (10) is connected to the interior of the inner tube (101).

8. The process for preparing the alkaline zinc-manganese battery separator according to claim 7, characterized in that: An elastic blocking member (706) is sleeved on the driving shaft (702), and the elastic blocking member (706) comprises a fixed sleeve (7061) sleeved on the driving shaft (702), and the outer wall of the fixed sleeve (7061) is provided with a plurality of slide grooves (7065) in an annular array, and a slider (7062) is slidably connected in the slide groove (7065), and the end of the slider (7062) is connected to a second spring (7063), and the slider (7062) is elastically supported and connected to the inner end surface of the slide groove (7065) through the second spring (7063), and the outer wall of the fixed sleeve (7061) is sleeved with a blocking disk (7064), and the inner wall of the blocking disk (7064) is connected to the slider (7062), and the top of the blocking disk (7064) is in contact with the bottom of the stirring device (4).

9. Alkaline zinc-manganese battery separator, characterized in that: It is prepared by the alkaline zinc-manganese battery diaphragm preparation process described in claim 8.

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