Preparation method of graphene modified resin

Abstract

The invention belongs to the field of resin preparation, and particularly relates to graphene modified resin and a preparation method thereof.The graphene modified resin comprises a conveying belt, a water pump, a fan and a heating coil; resin particles fall on the conveying belt and are driven to move to the bottom of the washing box, a water pump pressurizes clean water in a tap water pipe, the clean water is sprayed out from a water spraying hole and is sprayed on the surfaces of the resin particles, dust on the surfaces of the resin particles is taken away, a fan is started to generate wind, the wind is heated through a heating coil, and the high-temperature wind is blown to the washed resin particles. Due to the fact that the whole process is safe in the shell, dust splashing of the resin particles is further reduced, the dust removal work of the resin particles is completed, the situation that the resin dust splashes in the working environment is reduced, and the body health of workers is improved.

Description

Technical Field

[0001] This invention belongs to the field of resin preparation, specifically a method for preparing graphene-modified resin. Background Technology

[0002] Resin refers to polymers used as the base material for plastics. It can be divided into natural resins and synthetic resins. Synthetic resins are resin products obtained by chemical synthesis of simple organic compounds or by chemical reaction of certain natural products. They are the main components in the production of plastics. Graphene-modified resins are new types of synthetic resins in which graphene is added to improve the properties of the resin.

[0003] Chinese patent CN108047636B discloses a graphene-modified ABS resin and its preparation method. The preparation method includes the following steps: providing melamine and diphenylphosphine chloride; mixing melamine and diphenylphosphine chloride and performing a chemical reaction to obtain a melamine-diphenylphosphine chloride compound; providing graphene oxide; mixing the melamine-diphenylphosphine chloride compound and graphene oxide and performing a grafting reaction to obtain melamine-diphenylphosphine chloride-graphene oxide; and providing an ABS matrix; melt-blending melamine-diphenylphosphine chloride-graphene oxide with the ABS matrix to obtain a graphene-modified ABS resin. This invention solves the problem of poor flame retardant properties of ABS resin in the prior art.

[0004] After the graphene-modified resin is produced, it needs to be dried. Then, the dried resin is crushed into small particles. This process generates resin dust, which is easily inhaled into the lungs by workers when it splashes in the working environment, seriously endangering their health.

[0005] Therefore, the present invention provides a graphene-modified resin and a method for preparing the same. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is: a graphene-modified resin according to this invention, wherein the graphene-modified resin is composed of the following raw materials in parts by weight: 100-200 parts of resin 10-20 parts of graphene Synthetic auxiliaries 1-10 parts 1-10 parts of curing agent.

[0008] Preferably, the synthesis aid is composed of the following raw materials in parts by weight: 1-5 parts of filler Water-resistant agent 0.5-5 parts 0.1-5 parts of tackifier Anti-aging agent 1-5 parts; Fillers prevent the resin layer from shrinking and generating internal stress, thus improving the resin's aging resistance and service life; water-resistant agents improve the resin's water resistance; tackifiers improve the resin's initial tack; and antioxidants reduce the resin's aging rate, thus reducing the likelihood of cracking, delamination, and peeling during shipping.

[0009] Preferably, the curing agent is ammonium chloride or ammonium sulfate; it has the advantages of good water solubility, low price, non-toxicity, odorless and easy to use.

[0010] A method for preparing a graphene-modified resin, applicable to the aforementioned graphene-modified resin, comprising the following steps: S1: Add the resin and graphene to the reaction vessel in proportion, stir and mix to obtain a mixed solution; S2: Add the synthesis aid and curing agent to the mixed solution, and then mix and stir. S3: The mixed solution after the reaction is filtered and dried to obtain a graphene-modified resin semi-solid; S4: Input the graphene-modified resin semi-solid into the molding equipment, and dry and pulverize the graphene-modified resin into graphene-modified resin particles. S5: Graphene-modified resin particles are fed into the dust removal device. The resin particles fall onto the conveyor belt, which moves the resin particles. The water pump sprays clean water from the tap water pipe through the spray hole, which sprays the surface of the resin particles, removing the dust from the surface of the resin particles. The dust mixed with clean water is discharged from the drain. The fan starts to generate air, which is heated by the heating coil. The high-temperature air blows onto the washed resin particles, drying them. Since the whole process is completed inside the shell, the dust splashing of the resin particles is further reduced, thus completing the dust removal work of the resin particles. S6: Pack the cleaned graphene-modified resin particles to obtain the finished graphene-modified resin product.

[0011] Preferably, the dust removal device described in S5 includes a housing, a feeding hopper, a conveyor belt, a washing tank, a water pump, a drying chamber, a fan, and a heating coil. One end of the top of the housing is connected to the feeding hopper. The conveyor belt is rotatably mounted inside the housing, and the conveyor belt has filter holes. A drive motor is connected to a shaft on one side of the conveyor belt. The feeding end of the conveyor belt is located at the bottom of the feeding hopper. The washing tank is fixedly connected to the top of the housing near the feeding hopper. The water pump is fixedly connected inside the washing tank, and the water inlet of the water pump is connected to a tap water pipe. A water tank is formed inside the top of the housing, and the water outlet of the water pump is connected to the water tank. Multiple spray holes are formed at the bottom of the water tank. The drying chamber is fixedly connected to the top of the housing away from the feeding hopper. An air inlet is formed on the top wall of the drying chamber, and an air outlet is formed on the bottom wall of the drying chamber. A fan is fixedly connected to the top wall of the drying chamber. A heating coil is fixedly connected to the bottom of the drying chamber. The heating coil is connected to a control coil via wires. The device is connected to a power source. The end of the housing furthest from the feeding hopper is connected to the feeding port, and the bottom of the housing is connected to the drain port. During operation, the crushed resin particles are placed into the feeding hopper, where they fall onto the conveyor belt. The drive motor drives the conveyor belt to move the resin particles to the bottom of the washing tank. A water pump pressurizes clean water from the tap and sends it into the water tank, spraying it from the spray nozzles onto the surface of the resin particles, removing the dust. The dust mixed with the clean water is discharged from the drain port. The fan starts, drawing outside air into the drying chamber to generate airflow. This airflow is heated by the heating coil, and the high-temperature airflow is blown onto the washed resin particles, drying them. The dried resin particles are then discharged from the feeding port. Because the entire process takes place inside the housing, it is safe and further reduces the splashing of resin dust, thus completing the cleaning of the resin particles, reducing resin dust splashing in the working environment, and improving the health of the workers.

[0012] Preferably, the nozzle is threaded inside the spray hole, and multiple spray holes are formed on the outer bevel of the nozzle. A support rod is fixed to the inner bottom surface of the nozzle, and a sealing seat is slidably installed on the top of the support rod. The top of the outer ring of the sealing seat slides in cooperation with the top surface of the inner outer ring of the nozzle. A first spring is fixed to the top of the support rod, and a rotating block is fixed to the top of the first spring. The top surface of the rotating block is rotatably connected to the top surface of the groove of the sealing seat. During operation, after clean water enters the nozzle, it pushes the sealing seat to slide downward, compressing the first spring. The clean water is dispersed and sprayed out from the surrounding spray holes, further dispersing the clean water and improving the uniformity of washing the resin particles and removing dust mixed in with the resin particles. When the water pump stops, the sealing seat seals the top of the nozzle under the elastic force of the first spring, preventing water from flowing into the nozzle from the tank and preventing external dust from entering the tank, thus ensuring the cleanliness of the tank.

[0013] Preferably, multiple herringbone spring strips are fixed to the bottom of the outer ring of the sealing seat. A support strip is fixed to the side of the herringbone spring strip away from the sealing seat. Floss is fixed to the side of the support strip near the inner wall of the nozzle. The floss slides against the inner wall of the nozzle. One end of a second spring is fixed to the inner wall of both sides of the herringbone spring strip. The other end of the second spring is fixed to the middle of the support strip. A fan blade is fixed to the top of the sealing seat. The outer ring of the fan blade is fitted onto the inner ring of the nozzle. During operation, after clean water enters the nozzle, the water passes through the fan blade, driving the fan blade to rotate. This causes the sealing seat to rotate along the rotating block, which in turn causes the support strip to rotate. This causes the floss to scrape against the inner wall of the nozzle, cleaning the nozzle orifice and reducing the probability of scale buildup inside the nozzle and nozzle clogging. The elasticity of the herringbone spring strip and the elasticity of the second springs on both sides push the support strip to squeeze the inner wall of the nozzle, thereby increasing the cleaning intensity of the floss on the inner wall of the nozzle.

[0014] Preferably, multiple elastic partitions are fixed to the outer wall of the conveyor belt, and cavities are formed inside the elastic partitions. Multiple oblique teeth are fixed to the inner top wall of the housing, and the tops of the oblique teeth slide in engagement with the tops of the elastic partitions. The oblique teeth and nozzles are alternately distributed. The elastic partitions separate the resin particles falling from the feed hopper. As the conveyor belt moves, it causes the elastic partitions to impact the oblique teeth, causing the elastic partitions to deform and vibrate, which in turn causes the separated resin particles to vibrate and disperse, thereby improving the cleaning effect of dust mixed in with the resin particles.

[0015] Preferably, a dispersion seat is fixed inside the feeding hopper, and the dispersion seat is teardrop-shaped; when resin particles are added into the feeding hopper, the resin particles are dispersed by the dispersion seat, thereby further improving the dispersion degree of the resin particles falling on the conveyor belt, and thus further improving the cleaning effect of dust mixed in the resin particles.

[0016] The beneficial effects of this invention are as follows: 1. The graphene-modified resin and its preparation method described in this invention utilize a conveyor belt, a water pump, a fan, and a heating coil. Resin particles fall onto the conveyor belt, which moves them to the bottom of the washing tank. The water pump pressurizes clean water from the tap and sprays it from the spray nozzles onto the surface of the resin particles, removing dust from their surface. The fan generates airflow, which is heated by the heating coil. The high-temperature airflow is then blown onto the washed resin particles, drying them. Because the entire process takes place safely inside the housing, it further reduces the splashing of resin dust, thus completing the cleaning of the resin particles and reducing resin dust splashing in the working environment, thereby improving the health of the workers.

[0017] 2. The graphene-modified resin and its preparation method described in this invention, by setting up elastic partitions and oblique teeth; the elastic partitions separate the resin particles falling from the feed hopper, the conveyor belt moves, and drives the elastic partitions to impact the oblique teeth, causing the elastic partitions to deform and vibrate, thereby dispersing the separated resin particles and improving the cleaning effect of dust mixed in the resin particles. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is a front view of Embodiment 1 of the present invention; Figure 3 yes Figure 2 Enlarged view of a portion of point A in the middle; Figure 4 yes Figure 3 Enlarged view of a section at point B in the middle; Figure 5 This is a cross-sectional view of the elastic partition in Embodiment 2 of the present invention; Figure 6 This is a flowchart of the preparation method of the present invention; In the diagram: 1. Shell; 2. Feeding bin; 3. Conveyor belt; 4. Washing tank; 5. Water pump; 6. Drying oven; 7. Fan; 8. Heating coil; 9. Water tank; 10. Drain outlet; 11. Nozzle; 12. Spray hole; 13. Support rod; 14. Sealing seat; 15. Spring No. 1; 16. Rotating block; 17. Herringbone spring; 18. Support bar; 19. Flocking material; 20. Spring No. 2; 21. Elastic partition; 22. Cavity; 23. Helical tooth; 24. Dispersion seat; 25. Crescent magnet; 26. Spherical magnet; 27. Connecting rod; 28. Push plate; 29. ​​Fan blade. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0021] Example 1 The graphene-modified resin described in this embodiment of the invention is composed of the following raw materials in parts by weight: 100-200 parts of resin 10-20 parts of graphene Synthetic auxiliaries 1-10 parts 1-10 parts of curing agent.

[0022] The synthesis aid is composed of the following raw materials in parts by weight: 1-5 parts of filler Water-resistant agent 0.5-5 parts 0.1-5 parts of tackifier Anti-aging agent 1-5 parts; Fillers prevent the resin layer from shrinking and generating internal stress, thus improving the resin's aging resistance and service life; water-resistant agents improve the resin's water resistance; tackifiers improve the resin's initial tack; and antioxidants reduce the resin's aging rate, thus reducing the likelihood of cracking, delamination, and peeling during shipping.

[0023] The curing agent is ammonium chloride or ammonium sulfate; it has the advantages of good water solubility, low price, non-toxicity, odorless and easy to use.

[0024] like Figure 6 As shown, a method for preparing a graphene-modified resin is described. This method is applicable to the above-mentioned graphene-modified resin and includes the following steps: S1: Add the resin and graphene to the reaction vessel in proportion, stir and mix to obtain a mixed solution; S2: Add the synthesis aid and curing agent to the mixed solution, and then mix and stir. S3: The mixed solution after the reaction is filtered and dried to obtain a graphene-modified resin semi-solid; S4: Input the graphene-modified resin semi-solid into the molding equipment, and dry and pulverize the graphene-modified resin into graphene-modified resin particles. S5: Graphene-modified resin particles are fed into the dust removal device. The resin particles fall onto the conveyor belt 3, which moves the resin particles. The water pump 5 sprays clean water from the tap water pipe through the spray hole and sprays it onto the surface of the resin particles, removing the dust from the surface of the resin particles. The dust mixed with clean water is discharged from the drain outlet 10. The fan 7 is started to generate air. The air is heated by the heating coil 8. The high-temperature air blows onto the washed resin particles and dries them. Since the whole process is completed inside the shell 1, the dust splashing of the resin particles is further reduced, thus completing the dust removal work of the resin particles. S6: Pack the cleaned graphene-modified resin particles to obtain the finished graphene-modified resin product.

[0025] like Figures 1 to 2As shown, the dust removal device described in S5 includes a housing 1, a feeding hopper 2, a conveyor belt 3, a washing tank 4, a water pump 5, a drying chamber 6, a fan 7, and a heating coil 8. One end of the top of the housing 1 is connected to the feeding hopper 2. The conveyor belt 3 is rotatably mounted inside the housing 1. The conveyor belt 3 has filter holes. A drive motor is connected to a rotating shaft on one side of the conveyor belt 3. The feeding end of the conveyor belt 3 is located at the bottom of the feeding hopper 2. The washing tank 4 is fixedly connected to the top of the housing 1 near the feeding hopper 2. An internal water pump 5 is fixedly connected to the housing 1. The inlet of the water pump 5 is connected to a tap water pipe. A water tank 9 is opened inside the top of the housing 1. The outlet pipe of the water pump 5 is connected to the water tank 9. Multiple spray holes are opened at the bottom of the water tank 9. A drying chamber 6 is fixedly connected to the top of the housing 1 on the side away from the feeding hopper 2. An air inlet is opened on the top wall of the drying chamber 6. An air outlet is opened on the bottom wall of the drying chamber 6. A fan 7 is fixedly connected to the top wall of the drying chamber 6. A heating coil 8 is fixedly connected to the bottom of the drying chamber 6. The coil 8 is connected to the power supply via a wire and a controller. The end of the housing 1 furthest from the feeding bin 2 is connected to the feeding port, and the bottom of the housing 1 is connected to the drain port 10. During operation, the crushed resin particles are placed into the feeding bin 2, and the resin particles fall onto the conveyor belt 3. The drive motor drives the conveyor belt 3 to move, moving the resin particles to the bottom of the washing tank 4. The water pump 5 pressurizes the clean water from the tap water pipe and sends it into the water tank 9, spraying it out from the spray hole and sprinkling it on the surface of the resin particles, removing the dust from the surface of the resin particles. The dust mixed with the clean water is discharged from the drain port 10. The fan 7 is started, drawing outside air into the drying chamber 6 to generate wind. The wind is heated by the heating coil 8, and the high-temperature wind is blown onto the washed resin particles, drying them. The dried resin particles are discharged from the feeding port. Because the entire process takes place inside the housing 1, it is safe and further reduces the splashing of resin particles, thus completing the cleaning of the resin particles, reducing resin dust splashing in the working environment, and improving the health of the workers.

[0026] like Figures 3 to 4As shown, a nozzle 11 is threaded inside the spray hole. Multiple spray holes 12 are formed on the outer bevel of the nozzle 11. A support rod 13 is fixedly connected to the inner bottom surface of the nozzle 11. A sealing seat 14 is slidably installed on the top of the support rod 13. The top of the outer ring of the sealing seat 14 slides in engagement with the top surface of the inner outer ring of the nozzle 11. A first spring 15 is fixedly connected to the top of the support rod 13. A rotating block 16 is fixedly connected to the top of the first spring 15. The top surface of the rotating block 16 is rotatably connected to the top surface of the groove of the sealing seat 14. During operation, clean water enters... After entering the nozzle 11, the sealing seat 14 is pushed downwards, which compresses the first spring 15. The clean water is dispersed and sprayed out from the surrounding spray holes 12, further dispersing the clean water and improving the uniformity of water washing of resin particles and the uniformity of removing dust mixed in the resin particles. When the water pump 5 stops, the sealing seat 14 seals the top of the nozzle 11 under the elastic force of the first spring 15, preventing water from flowing into the nozzle 11 from the water tank 9. At the same time, it prevents external dust from entering the water tank 9, thereby ensuring the cleanliness of the water tank 9.

[0027] Multiple herringbone spring strips 17 are fixedly connected to the bottom of the outer ring of the sealing seat 14. A support strip 18 is fixedly connected to the side of each herringbone spring strip 17 away from the sealing seat 14. A pile 19 is fixedly connected to the side of the support strip 18 near the inner wall of the nozzle 11. The pile 19 slides against the inner wall of the nozzle 11. One end of a second spring 20 is fixedly connected to the inner walls of both sides of the herringbone spring strip 17. The other end of the second spring 20 is fixedly connected to the middle of the support strip 18. A fan blade 29 is fixedly connected to the top of the sealing seat 14. The outer ring of the fan blade 29 fits around the inner ring of the nozzle 11. During operation, after clean water enters the nozzle 11, it passes through the fan blade 29, driving the fan blade 29 to rotate. This causes the sealing seat 14 to rotate along the rotating block 16, which in turn causes the support bar 18 to rotate. This causes the bristles 19 to scrape against the inner wall of the nozzle 11, cleaning the spray hole 12 and reducing the probability of scale buildup inside the nozzle 11 and the probability of the nozzle 11 becoming clogged. The elasticity of the herringbone spring 17 and the elasticity of the second springs 20 on both sides push the support bar 18 to squeeze the inner wall of the nozzle 11, thereby increasing the cleaning strength of the bristles 19 on the inner wall of the nozzle 11.

[0028] Multiple elastic partitions 21 are fixed to the outer wall of the conveyor belt 3. A cavity 22 is opened inside the elastic partition 21. Multiple oblique teeth 23 are fixed to the inner top wall of the housing 1. The top of the oblique teeth 23 slides with the top of the elastic partition 21. The oblique teeth 23 and the nozzle 11 are alternately distributed. The resin particles falling from the feed hopper 2 are separated by the elastic partitions 21. When the conveyor belt 3 moves, it drives the elastic partitions 21 to hit the oblique teeth 23, causing the elastic partitions 21 to deform and vibrate, which in turn causes the separated resin particles to vibrate and disperse, thereby improving the cleaning effect of dust mixed in the resin particles.

[0029] The dispensing hopper 2 is internally fixed with a dispersion seat 24, which is teardrop-shaped. When resin particles are added into the dispensing hopper 2, the resin particles are dispersed by the dispersion seat 24, thereby further improving the dispersion degree of the resin particles falling on the conveyor belt 3, and thus further improving the cleaning effect of dust mixed in the resin particles.

[0030] Example 2 like Figure 5 As shown in the comparative embodiment one, another embodiment of the present invention is as follows: a crescent-shaped magnet 25 is fixedly connected to one end of the cavity 22 near the conveyor belt 3; a spherical magnet 26 is slidably installed inside the cavity 22; the top of the spherical magnet 26 attracts the bottom of the crescent-shaped magnet 25; a connecting rod 27 is fixedly connected to the bottom of the spherical magnet 26; the connecting rod 27 penetrates the outer wall of the cavity 22; a push plate 28 is fixedly connected to the end of the connecting rod 27 away from the conveyor belt 3; and the push plate 28 slidably engages with the bottom wall of the housing 1. When the spherical magnet 26 and the crescent-shaped magnet 25 are connected, the attraction between them is less than the weight of the spherical magnet 26. During operation, when the conveyor belt 3 moves the elastic partition 21 to the bottom of the housing 1, the spherical magnet 26 is disengaged from the crescent-shaped magnet 25 under the influence of gravity, causing the push plate 28 to contact the bottom wall of the housing 1. The conveyor belt 3 drives the push plate 28 to move along the bottom wall of the housing 1, thereby pushing the dust deposited on the bottom wall of the housing 1 into the drain outlet 10, thus further improving the cleanliness of the inside of the housing 1.

[0031] During operation: The crushed resin particles are placed into the feeding bin 2. The resin particles are dispersed by the dispersing seat 24 and fall onto the conveyor belt 3. The elastic partition 21 separates the resin particles falling from the feeding bin 2. The drive motor drives the conveyor belt 3 to move, causing the elastic partition 21 to hit the helical teeth 23, which causes the elastic partition 21 to deform and vibrate, thus causing the separated resin particles to vibrate and disperse. The resin particles move to the bottom of the washing tank 4. The water pump 5 pressurizes the clean water from the tap water pipe and sends it into the water tank 9. After the clean water enters the nozzle 11, it pushes the sealing seat 14 to slide downward, pushing the first spring 15 to compress. The clean water is dispersed and sprayed out from the surrounding spray holes 12. At the same time, the clean water passes through the fan blade 29, driving the fan blade 29 to rotate, causing the sealing seat 14 to rotate along the rotating block 16, and causing the support bar 18 to rotate. This causes the lint 19 to scrape the inner wall of the nozzle 11, cleaning the spray holes 12, reducing the probability of scale forming inside the nozzle 11 and the probability of the nozzle 11 becoming clogged. The clean water sprays onto the surface of the resin particles, carrying away the dust on the surface of the resin particles. The dust mixed with the clean water is discharged from the drain port 10. When fan 7 starts, it draws outside air into drying chamber 6 to generate airflow. The airflow is heated by heating coil 8, and the high-temperature airflow blows onto the washed resin particles to dry them. The dried resin particles are then discharged from the discharge port. Since the entire process takes place inside the housing 1, it is safe and further reduces the splashing of resin particles, thus completing the cleaning of the resin particles, reducing resin dust splashing in the working environment, and improving the health of the workers.

[0032] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0033] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a graphene-modified resin, characterized in that: The graphene-modified resin is composed of the following raw materials in parts by weight: 100-200 parts of resin 10-20 parts of graphene Synthetic auxiliaries 1-10 parts 1-10 parts of curing agent; The synthesis aid is composed of the following raw materials in parts by weight: 1-5 parts of filler Water-resistant agent 0.5-5 parts 0.1-5 parts of tackifier Anti-aging agent 1-5 parts; The curing agent is ammonium chloride or ammonium sulfate; The preparation method of the above-mentioned graphene-modified resin includes the following steps: S1: Add the resin and graphene to the reaction vessel in proportion, stir and mix to obtain a mixed solution; S2: Add the synthesis aid and curing agent to the mixed solution, and then mix and stir. S3: The mixed solution after the reaction is filtered and dried to obtain a graphene-modified resin semi-solid; S4: Input the graphene-modified resin semi-solid into the molding equipment, and dry and pulverize the graphene-modified resin into graphene-modified resin particles. S5: Put the graphene-modified resin particles into the dust removal device to clean the dust on the surface of the graphene-modified resin particles. S6: Pack the clean graphene-modified resin particles to obtain the finished graphene-modified resin product. The dust removal device described in S5 includes a housing (1), a feeding hopper (2), a conveyor belt (3), a washing tank (4), a water pump (5), a drying chamber (6), a fan (7), and a heating coil (8); the top end of the housing (1) is connected to the feeding hopper (2), the conveyor belt (3) is rotatably installed inside the housing (1), the conveyor belt (3) has filter holes, a drive motor is connected to a rotating shaft on one side of the conveyor belt (3), the feeding end of the conveyor belt (3) is located at the bottom of the feeding hopper (2), the washing tank (4) is fixedly connected to the top of the housing (1) near the feeding hopper (2), the water pump (5) is fixedly connected inside the washing tank (4), and the water inlet of the water pump (5) is connected to tap water. The shell (1) has a water tank (9) inside the top, and the water outlet pipe of the water pump (5) is connected to the water tank (9). Multiple water spray holes are opened at the bottom of the water tank (9). A drying box (6) is fixed to the top of the shell (1) away from the feeding bin (2). An air inlet is opened on the top wall of the drying box (6). An air outlet is opened on the bottom wall of the drying box (6). A fan (7) is fixed to the top wall of the drying box (6). A heating coil (8) is fixed to the bottom of the drying box (6). The heating coil (8) is connected to the power supply through a wire and a controller. The end of the shell (1) away from the feeding bin (2) is connected to the feeding port. The bottom of the shell (1) is connected to the drain port (10). The nozzle (11) is installed inside the water spray hole by a thread. Multiple spray holes (12) are opened on the outer bevel of the nozzle (11). A support rod (13) is fixed to the inner bottom surface of the nozzle (11). A sealing seat (14) is slidably installed on the top of the support rod (13). The top of the outer ring of the sealing seat (14) is slidably engaged with the top surface of the inner outer ring of the nozzle (11). A first spring (15) is fixed to the top of the support rod (13). A rotating block (16) is fixed to the top of the first spring (15). The top surface of the rotating block (16) is rotatably connected to the top surface of the groove of the sealing seat (14). Multiple herringbone spring strips (17) are fixed to the bottom of the outer ring of the sealing seat (14). A support strip (18) is fixed to the side of the herringbone spring strip (17) away from the sealing seat (14). A pile (19) is fixed to the side of the support strip (18) near the inner wall of the nozzle (11). The pile (19) slides with the inner wall of the nozzle (11). One end of a second spring (20) is fixed to the inner walls of both sides of the herringbone spring strip (17). The other end of the second spring (20) is fixed to the middle of the support strip (18). A fan blade (29) is fixed to the top of the sealing seat (14). The outer ring of the fan blade (29) is fitted around the inner ring of the nozzle (11). Multiple elastic partitions (21) are fixed to the outer wall of the conveyor belt (3). A cavity (22) is opened inside the elastic partition (21). Multiple helical teeth (23) are fixed to the inner top wall of the housing (1). The top of the helical teeth (23) slides with the top of the elastic partition (21). The helical teeth (23) and the nozzle (11) are alternately distributed. A crescent-shaped magnet (25) is fixed to one end of the cavity (22) near the conveyor belt (3). A spherical magnet (26) is slidably installed inside the cavity (22). The top of the spherical magnet (26) attracts the bottom of the crescent-shaped magnet (25). A connecting rod (27) is fixed to the bottom of the spherical magnet (26). The connecting rod (27) passes through the outer wall of the cavity (22). A push plate (28) is fixed to one end of the connecting rod (27) away from the conveyor belt (3). The push plate (28) slides against the bottom wall of the housing (1). The attraction between the spherical magnet (26) and the crescent-shaped magnet (25) is less than the weight of the spherical magnet (26).

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