Aqueous-phase synergistic coagulation process production line and production process for graphene oxide-modified natural rubber masterbatch

Abstract

The present invention relates to the technical field of rubber production, and in particular to an aqueous-phase synergistic coagulation process production line and production process for a graphene oxide-modified natural rubber masterbatch. The present invention comprises a modified graphene oxide aqueous dispersion production system and a graphene oxide-modified natural rubber masterbatch production system. The modified graphene oxide aqueous dispersion production system comprises a graphene oxide slurry storage tank, a modifier dispersion storage tank, and an ultrasonic reaction kettle. The graphene oxide-modified natural rubber masterbatch production system comprises a latex storage tank, a flocculant storage tank, a mixing kettle, a flocculation device, and a rubber feeding device. The latex storage tank and the ultrasonic reaction kettle are respectively communicated with the mixing kettle by means of pipes. The present invention can realize the instant use of modified graphene oxide, so that a high-performance masterbatch can be obtained only after addition of the modified graphene oxide to natural latex. In addition, the motor rotation speed and the rubber drying temperature can be adjusted and controlled, thereby achieving high consistency in the quality of obtained masterbatch products.

Description

Water-phase synergistic coagulation process production line and production process of graphene oxide modified natural rubber masterbatch

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202410970123.1 filed on July 19, 2024 in the China Patent Office and entitled “Water-phase synergistic coagulation process production line and production process of graphene oxide modified natural rubber masterbatch”, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of rubber production, and in particular to a water-phase synergistic coagulation process production line and production process of graphene oxide modified natural rubber masterbatch. BACKGROUND

[0004] Natural rubber is a natural high molecular compound with cis-1,4-polyisoprene as the main component, and is an elastic solid material made of natural latex collected from rubber trees through processing procedures such as coagulation and drying. It is an important industrial raw material and is widely used in the fields of tires, conveyor belts, rubber hoses, and sealing rings.

[0005] Graphene is a new material with sp 2 hybrid connection, in which carbon atoms are tightly packed into a single-layer two-dimensional honeycomb lattice structure. It has excellent optical, electrical, and mechanical properties and has broad application prospects in the fields of materials, micro-nano processing, energy, biomedicine, and drug delivery. It is considered to be a revolutionary material for the future. One of the most representative ones is graphene oxide (GO), which is a two-dimensional (2D) material with various oxygen-containing functional groups obtained by oxidizing graphite through physical and chemical means.

[0006] Graphene and its derivatives have excellent mechanical strength, electrical conductivity, and thermal conductivity, making them widely used in the reinforcement and modification of rubber to make the prepared rubber products have better mechanical strength, toughness, and thermal conductivity. However, the latex coagulation method commonly used for preparing graphene modified natural rubber masterbatch has the problem of long production cycle and high energy consumption due to the dehydration and drying process, in addition to high cost, which has become one of the main obstacles to the application of graphene modified natural rubber.

[0007] In addition, the existing natural rubber masterbatch production line is mostly a "standard rubber" production line and a "full latex" production line. There are the following problems: first, the instant modification of graphene oxide and the instant use thereof cannot be realized in the production line, resulting in the reduction of the activity of modified graphene oxide, and thus high-performance masterbatch cannot be obtained; in addition, the process is multiple, and thus the personnel configuration is multiple. Second, the production line basically adopts hot air drying at a drying temperature of 60 DEG C, which is a compromise scheme considering the drying efficiency and the quality of the rubber after drying, but there are problems such as low drying efficiency and unstable quality of the masterbatch after drying.

[0008] SUMMARY

[0009] The present application is to solve the problems of the current natural rubber production line process and the unstable quality of the rubber after drying, and proposes a water-phase synergistic coagulation process production line and production process for graphene oxide modified natural rubber masterbatch, which can realize the full-process monitoring and automatic control of the natural rubber masterbatch production line, reduce the manual operation intensity, improve the production efficiency and product quality stability, and thus stably produce high-performance graphene modified natural rubber masterbatch.

[0010] The present application is realized by the following technical scheme: a water-phase synergistic coagulation process production line for graphene oxide modified natural rubber masterbatch, comprising a modified graphene oxide water dispersion liquid production system and a graphene oxide modified natural rubber masterbatch production system;

[0011] The modified graphene oxide water dispersion liquid production system comprises a graphene oxide slurry storage tank, a modifier dispersion liquid storage tank and an ultrasonic reaction kettle, the graphene oxide slurry storage tank and the modifier dispersion liquid storage tank are respectively connected to the ultrasonic reaction kettle through pipelines, and a metering pump is respectively arranged in series on the pipelines between the graphene oxide slurry storage tank, the modifier dispersion liquid storage tank and the ultrasonic reaction kettle;

[0012] The graphene oxide modified natural rubber masterbatch production system comprises a latex storage tank, a flocculant storage tank, a mixing kettle, a flocculation device and a rubber coating device; the latex storage tank and the ultrasonic reaction kettle are respectively connected to the mixing kettle through pipelines; a metering pump is respectively arranged in series on the pipelines through which the latex storage tank, the ultrasonic reaction kettle and the mixing kettle are connected;

[0013] The flocculation device comprises a flocculation tank, the flocculant storage tank is connected with the flocculation tank through a pipeline, a metering pump is arranged in series on the pipeline connecting the flocculant storage tank with the flocculation tank, the sizing device comprises a sizing platform and a transmission carrier roller rotatably arranged on the sizing platform, a discharge end of the transmission carrier roller is sequentially provided with at least one creping machine, a discharge end of each creping machine is provided with a transmission belt, a discharge end of the last transmission belt is located above a feeding end of the tearing machine, a discharge end of the tearing machine is connected with a feeding end of a cleaning tank, and a discharge end of the cleaning tank is provided with a feeding pump, and a discharge end of the feeding pump is connected with a drying device through a pipeline.

[0014] The drying device comprises a conveying belt, the conveying belt is located below the discharge end of the feeding pump, two drying bins are sequentially arranged side by side on the conveying belt along a material conveying direction, the conveying belt can convey materials in the drying bins through a driving mechanism, each drying bin is provided with a heat preservation door curtain, and a centrifugal fan and a supply fan are correspondingly arranged on the top, a heating device is arranged at an air inlet of the supply fan, air outlets of the supply fans are connected with air inlets of the drying bins in a communication mode, and air inlets of the centrifugal fans are connected with air outlets of the drying bins in a communication mode.

[0015] The conveying belt can convey materials to the material table.

[0016] As a further improvement of the production line technical scheme of the application, the flocculation device further comprises a supporting base, the flocculation tank is located above the supporting base, and a bottom of a discharge end of the flocculation tank is rotatably connected with one side of an upper surface of the supporting base, the other side of the supporting base is internally provided with a lifting oil cylinder, and a telescopic end of the lifting oil cylinder penetrates through the supporting base and is in contact with and supports the bottom of the feeding end of the flocculation tank.

[0017] As a further improvement of the production line technical scheme of the application, a packing machine is further included.

[0018] As a further improvement of the production line technical scheme of the application, the power range of the ultrasonic reaction kettle is 1-10KW, and the temperature range is 25-120 DEG C.

[0019] The application further provides a production process of a water-phase synergic coagulation process of graphene oxide modified natural rubber masterbatch, and the production line is used, and the production process comprises the following steps:

[0020] S1. The natural rubber latex in the latex storage tank is punched into the mixing kettle through the metering pump, then deionized water is added and uniformly mixed, and natural rubber latex with a certain concentration is obtained.

[0021] S2. The oxidized graphene slurry in the oxidized graphene slurry storage tank and the modifier dispersion liquid in the modifier dispersion liquid storage tank are sequentially added into the ultrasonic reaction kettle through the metering pump, reacted at a certain temperature for a certain time, and a modified oxidized graphene water dispersion liquid is obtained;

[0022] S3. The modified oxidized graphene water dispersion liquid in the ultrasonic reaction kettle obtained in step S2 is added into the natural rubber latex in the mixing kettle obtained in step S1, and mixed by fully stirring to obtain a uniform oxidized graphene modified natural rubber mixed emulsion; the oxidized graphene modified natural rubber mixed emulsion and the flocculating agent in the flocculating agent storage tank are sequentially added into the flocculation tank, mixed uniformly and made the latex flocculate to obtain a flocculated oxidized graphene modified natural rubber block;

[0023] S4. The oxidized graphene modified natural rubber flocculated block obtained in step S3 is sequentially dragged through each creping machine and transmission belt by using the gluing device to continuously crepe, and the speed of the creping machine is controlled according to the gluing speed, so that the rubber sheet uniformly passes through the last transmission belt and is transported to the flaking machine for granulation without plugging;

[0024] S5. The rubber particles obtained in step S4 are washed to remove acid in the washing tank, and then pumped by the feeding pump to the conveying belt; hot air generated by the heating device is respectively conveyed into the drying bin by the air blowing fan, and the wet hot air in the drying bin is respectively discharged by the centrifugal fan; the rubber particles on the conveying belt are sequentially passed through the drying bin for drying treatment, so that most of the water in the material is quickly dried in the first drying bin, and then the remaining water is quickly absorbed in the last drying bin by low-temperature drying air, so that the production efficiency and quality stability of the modified natural rubber masterbatch are improved at the same time.

[0025] S6. The dried rubber particles obtained in step S5 are weighed, then packaged using a packaging machine, and a high-performance oxidized graphene modified natural rubber masterbatch product is obtained.

[0026] As a further improvement of the production process technical scheme of the application, in step S1, the concentration of the obtained natural rubber latex is such that it can be stably conveyed by the metering pump.

[0027] As a further improvement of the production process technical scheme of the application, in step S2, the concentration of the oxidized graphene slurry is such that it can be stably conveyed by the metering pump, and the concentration of the modifier dispersion liquid is such that it can be stably conveyed by the metering pump.

[0028] As a further improvement of the production process technical scheme of the application, in step S5, the temperature of the first drying bin ranges from 60°C to 95°C, and the temperature of the second drying bin ranges from 25°C to 60°C.

[0029] Compared with the prior art, the application has the following advantages:

[0030] 1) The water phase synergic coagulation process production line of the high-performance graphene oxide modified natural rubber masterbatch of the present application can realize the modification treatment of graphene oxide and the subsequent immediate use, so that after being added to the natural rubber latex, the high-performance masterbatch can be obtained; in addition, the motor speed and the rubber drying temperature can be regulated according to the real-time information of each device, so that the quality of the obtained masterbatch product has high stability. Therefore, it has the characteristics of low cost, high efficiency, high stability and intelligence.

[0031] 2) The segmented drying process of the present application, the high-temperature hot air is used in the front section to quickly dry most of the water in the rubber; and in the rear section, low-temperature drying air is used to quickly dry the remaining water in the rubber, which can improve the production efficiency of the modified natural rubber masterbatch and ensure the quality stability.

[0032] 3) The automatic cooperation between each device of the production line of the present application reduces the number of workers and the operation strength; in addition, the process is simple, the drying time is shortened, and the tail end temperature of drying is low, which can effectively improve the production efficiency and product quality of the graphene oxide modified natural rubber masterbatch. BRIEF DESCRIPTION OF DRAWINGS

[0033] The drawings incorporated into the specification and constituting a part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.

[0035] Fig. 1 is a production line schematic diagram of the graphene modified natural rubber masterbatch of the present application.

[0036] In the figure: 101: graphene oxide slurry storage tank; 102: modifier dispersion liquid storage tank; 103: ultrasonic reaction kettle; 201: latex storage tank; 202: flocculant storage tank; 203: mixing kettle; 204: rubber coating platform; 205: crepe machine; 206: flocculation tank; 207: transmission roller; 208: transmission belt; 209: tear granulator; 210: cleaning pool; 211: feeding pump; 212: conveying belt; 213: drying bin; 214: centrifugal fan; 215: air supply fan; 216: heating device; 217: packing machine; 218: drying device; 219: support base; 220: lifting oil cylinder; 221: material table. DETAILED DESCRIPTION

[0037] In order to enable one skilled in the art to more clearly understand the above-mentioned objects, features and advantages of the present application, the following will further describe the solutions of the present application. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0038] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a variety of ways beyond the description and should not be limited to the embodiments described herein. It will be apparent that the embodiments described herein are merely some of the applications of the present application and are not all-inclusive of all embodiments of the present application.

[0039] Embodiment

[0040] As shown in Figure 1, the present application provides a specific embodiment of a water-phase synergistic coagulation process production line for graphene oxide modified natural rubber masterbatch, including a modified graphene oxide aqueous dispersion production system and a graphene oxide modified natural rubber masterbatch production system.

[0041] The modified graphene oxide aqueous dispersion production system includes a graphene oxide slurry storage tank 101, a modifier dispersion liquid storage tank 102 and an ultrasonic reaction kettle 103. The graphene oxide slurry storage tank 101 and the modifier dispersion liquid storage tank 102 are respectively connected to the ultrasonic reaction kettle 103 through pipelines. The graphene oxide slurry storage tank 101 and the modifier dispersion liquid storage tank 102 are respectively provided with a metering pump connected in series on the pipeline between the graphene oxide slurry storage tank 101 and the modifier dispersion liquid storage tank 102 and the ultrasonic reaction kettle 103.

[0042] The concentration of the graphene oxide slurry is such that it can be stably transported by the metering pump, and the concentration of the modifier dispersion liquid is such that it can be stably transported by the metering pump. The power range of the ultrasonic reaction kettle 103 is 8KW, and the temperature range is 70℃.

[0043] The graphene oxide modified natural rubber masterbatch production system includes a latex storage tank 201, a flocculant storage tank 202, a mixing kettle 203, a flocculation device and a gumming device. The latex storage tank 201 and the ultrasonic reaction kettle 103 are respectively connected to the mixing kettle 203 through pipelines. The latex storage tank 201 and the ultrasonic reaction kettle 103 are respectively provided with a metering pump connected in series on the pipeline between the latex storage tank 201 and the ultrasonic reaction kettle 103 and the mixing kettle 203.

[0044] The flocculation device comprises a flocculation tank 206, the flocculant storage tank 202 is communicated with the flocculation tank 206 through a pipeline; a metering pump is arranged in series on the pipeline communicated with the flocculation tank 206; the sizing device comprises a sizing platform 204 and a transmission roller 207 rotatably arranged on the sizing platform 204, the discharge end of the transmission roller 207 is sequentially provided with three crepe machines 205, the discharge end of each crepe machine 205 is provided with a transmission belt 208; the discharge end of the last transmission belt 208 is located above the feed end of the pin mill 209; the discharge end of the pin mill 209 is communicated with the feed end of the cleaning tank 210; the discharge end of the cleaning tank 210 is provided with a feeding pump 211, the discharge end of the feeding pump 211 is connected to the drying device through a pipeline;

[0045] The drying device comprises a conveying belt 212, the conveying belt 212 is located below the discharge end of the feeding pump 211; two drying bins 213 are sequentially arranged side by side on the conveying belt 212 along the material conveying direction, the conveying belt 212 can convey materials in the drying bin 213 through a driving mechanism, the drying bin 213 is provided with a heat preservation door curtain, and a centrifugal fan 214 and a supply fan 215 are correspondingly arranged on the top, respectively; a heating device 216 is arranged at the air inlet of the supply fan 215, the air outlet of the supply fan 215 is communicated with the air inlet of the drying bin 213, respectively, and the air inlet of the centrifugal fan 214 is communicated with the air outlet of the drying bin 213, respectively; the front end of the air inlet pipeline of the second drying bin 213 is arranged with a drying device 218 near the side of the heating device 216, and the drying device 218 is filled with drying medium; in the first drying bin 213, a high-power heating ventilation equipment is used to realize the purpose of rapid drying of most of the water by high temperature; the second drying bin 213 uses a high-power drying air ventilation equipment to realize the purpose of rapid absorption of the remaining water by low-temperature drying air, so that the production efficiency and quality stability of the modified natural rubber masterbatch can be improved at the same time;

[0046] The conveying belt 212 can convey materials to the material table 221.

[0047] In the embodiment, in order to facilitate the transmission of the graphene oxide modified natural rubber rubber block in the flocculation tank 206 to the transmission roller 207 on the rubber coating platform 204, the flocculation device further comprises a supporting base 219, the flocculation tank 206 is located above the supporting base 219, and the bottom of the discharge end of the flocculation tank 206 is rotatably connected to one side of the upper surface of the supporting base 219. The other side of the supporting base 219 is internally provided with a lifting oil cylinder 220, the telescopic end of the lifting oil cylinder 220 penetrates through the supporting base 219 and is in contact and supporting cooperation with the bottom of the feeding end of the flocculation tank 206. When the mixed emulsion is flocculated, the lifting oil cylinder 220 is started, the telescopic end of the lifting oil cylinder 220 penetrates through the supporting base 219, and in the process of continuously lifting the feeding end of the flocculation tank 206, the contact point between the telescopic end of the lifting oil cylinder 220 and the bottom of the discharge end of the flocculation tank 206 moves from inside to outside until the feeding end of the flocculation tank 206 is lifted to the required height.

[0048] As shown in FIG. 1, a packing machine 217 is further included.

[0049] The specific production process includes the following steps:

[0050] S1. The natural rubber latex in the latex storage tank 201 is pumped into the mixing kettle 203 through a metering pump, then deionized water is added and uniformly mixed to obtain natural rubber latex;

[0051] S2. The graphene oxide slurry (concentration of 1 wt.%) in the graphene oxide slurry storage tank 101 and the modifier dispersion liquid (concentration of 2 wt.%) in the modifier dispersion liquid storage tank 102 are sequentially added to the ultrasonic reaction kettle 103 through a metering pump, reacted at a certain temperature for a certain time, and a modified graphene oxide water dispersion liquid is obtained;

[0052] S3. The modified graphene oxide water dispersion liquid in the ultrasonic reaction kettle 103 obtained in step S2 is added to the natural rubber latex in the mixing kettle 203 obtained in step S1, and the mixture is fully stirred to obtain a uniform graphene oxide modified natural rubber mixed emulsion. The graphene oxide modified natural rubber mixed emulsion and the flocculating agent in the flocculating agent storage tank 202 are sequentially added to the flocculation tank 206, uniformly mixed, and the latex is flocculated to obtain a flocculated graphene oxide modified natural rubber block;

[0053] S4. The graphene oxide modified natural rubber flocculated block obtained in step S3 is sequentially dragged through each creping machine 205 and the transmission belt 208 for continuous creping by using the rubber coating device. According to the rubber coating speed, the rotating speed of the creping machine 205 is controlled, so that the rubber sheet uniformly passes through the last transmission belt 208 and is transported to the pin mill 209 for granulation without plugging;

[0054] S5. The colloidal particles obtained in step S4 are subjected to cleaning and deacidification in a cleaning tank 210, and then are pumped by a feeding pump 211 onto a conveying belt 212; hot air generated by a heating device 216 is delivered into a drying bin 213 by a blowing fan 215, and the humid hot air in the drying bin 213 is discharged by a centrifugal fan 214; in this embodiment, the corresponding temperature is obtained by using a temperature sensor arranged in the drying bin 213, and the power of the heating device 216 is adjusted by a PLC controller according to the set drying temperature, so as to obtain the required drying temperature and drying time through the temperature and humidity of the air outlet of the drying bin 213; in specific implementation, the drying temperature and drying time in the drying bin 213 are shown in the following table; the colloidal particles on the conveying belt 212 are sequentially subjected to drying treatment in the drying bin 213;

[0055] S6. The dried colloidal particles obtained in step S5 are weighed, and then are packaged by using a packaging machine 217, so as to obtain a high-performance graphene oxide modified natural rubber masterbatch product.

[0056] Comparative Example 1

[0057] S1-S4 are the same as S1-S4 in the embodiment.

[0058] S5 is the same as S5 in the embodiment, and the only difference is that the drying temperature in the two drying bins 213 is constant at 60℃, and drying is performed until the weight is constant.

[0059] S6 is the same as S6 in the embodiment.

[0060] Comparative Example 2

[0061] S1 is the same as S1 in the embodiment.

[0062] S2 and S3 are the same as S2 and S3 in the embodiment, and the only difference is that the modified graphene oxide is not added.

[0063] S5 and S6 are the same as S5 and S6 in the embodiment, and the only difference is that the drying temperature in the two drying bins 213 is constant at 60℃, and drying is performed until the weight is constant.

[0064] Comparative Example 3

[0065] S1-S4 are the same as S1-S4 in the embodiment.

[0066] S5 is the same as S5 in the embodiment, and the only difference is that the drying temperature in the two drying bins 213 is constant at 80℃, and drying is performed until the weight is constant.

[0067] S6 is the same as S6 in the embodiment.

[0068] To obtain the mechanical properties of vulcanized rubber based on the masterbatch produced in Example 1 and Comparative Examples 1-3, the preparation of vulcanized rubber is required. The specific process is as follows: the graphene oxide modified natural rubber masterbatch is placed in an internal mixer, and after 16 minutes of mixing at a temperature of 110°C, the rubber is discharged, during which 100 phr of graphene oxide modified natural rubber masterbatch, 2 phr of accelerator CZ (N-cyclohexyl-2-benzothiazole sulfenamide), 2 phr of antioxidant RD (2,2,4-trimethyl-1,2-dihydroquinoline polymer), 2 phr of antioxidant 4020 (N-(1,3-dimethylbutyl)-N'-phenyl-1,4-phenylenediamine), 5 phr of activator zinc oxide, 2 phr of plasticizer stearic acid, and 35 phr of reinforcing agent carbon black are added in sequence; the discharged rubber is cooled to room temperature and then mixed on an open mill at 60°C for 10 minutes, during which 2 phr of sulfur is added, and after uniform mixing, the rubber is thin-passed to be bubble-free to obtain a mixed rubber; the mixed rubber is placed at room temperature for 24 hours, and then hot-pressed and vulcanized in a mold under the conditions of 150°C*15MPa, with a vulcanization time of Tc 90 (Obtained by testing with a rubber processing analyzer), and finally the vulcanized graphene modified natural rubber is obtained.

[0069] The vulcanized natural rubber composite based on the masterbatch obtained in Example 1 and Comparative Examples 1-3 is tested for performance. The test standard for tensile properties is GB / T 528-2009, and the tensile rate is 500 mm / min. The test standard for tear properties is GB / T 529-2008. The vulcanization time Tc 90 Measured by a rubber processing analyzer. Table 1 is the performance test rubber formula table of Example 1 and Comparative Examples 1-3; and Table 2 is the comprehensive performance of Example 1 and Comparative Examples 1-3.

[0070] Table 1 Formula table of Example 1 and Comparative Examples 1-3

[0071] Table 2 Comprehensive performance of Example 1 and Comparative Examples 1-3

[0072] As can be seen from Table 2, compared with the graphene oxide modified natural rubber masterbatch and the vulcanized rubber prepared therefrom of Comparative Examples 1-3, the high-performance graphene oxide modified natural rubber masterbatch of the present application (Example 1) has higher Mooney viscosity and plasticity value, which can avoid the occurrence of roll sticking during the mixing stage; and the comprehensive performance of the vulcanized rubber prepared therefrom, such as tensile strength, tear strength, hardness, and dynamic compression heat generation performance, is improved. In addition, the same rubber is dried in the shortest time, and the production efficiency is significantly improved.

[0073] The above description is merely one specific implementation of the application, and thus the technical solutions recorded in the foregoing embodiments can be modified or some or all of the technical features can be substituted equivalently by those skilled in the art, without departing from the scope of the technical solutions of the embodiments, and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the embodiments, and should be included in the protection scope of the claims.

Claims

1. A process line for the aqueous synergic coagulation of graphene oxide modified natural rubber masterbatch, characterized in that it comprises the following steps: The application relates to a modified graphene oxide water dispersion production system and a graphene oxide modified natural rubber masterbatch production system. The modified graphene oxide water dispersion production system comprises an graphene oxide slurry storage tank (101), a modifier dispersion liquid storage tank (102) and an ultrasonic reaction kettle (103), the graphene oxide slurry storage tank (101) and the modifier dispersion liquid storage tank (102) are connected with the ultrasonic reaction kettle (103) through pipelines respectively, and a metering pump is arranged in series on the pipeline between the graphene oxide slurry storage tank (101), the modifier dispersion liquid storage tank (102) and the ultrasonic reaction kettle (103) respectively. The graphene oxide modified natural rubber masterbatch production system comprises a latex storage tank (201), a flocculating agent storage tank (202), a mixing kettle (203), a flocculating device and a gumming device; the latex storage tank (201) and the ultrasonic reaction kettle (103) are connected with the mixing kettle (203) through pipelines respectively; and a metering pump is arranged in series on the pipeline through which the latex storage tank (201), the ultrasonic reaction kettle (103) and the mixing kettle (203) are connected. The flocculating device comprises a flocculating tank (206), the flocculating agent storage tank (202) is connected with the flocculating tank (206) through a pipeline; a metering pump is arranged in series on the pipeline through which the flocculating agent storage tank (202) and the flocculating tank (206) are connected; the flocculating device further comprises a supporting base (219), the flocculating tank (206) is located above the supporting base (219), and the bottom of the discharge end of the flocculating tank (206) is rotationally connected to one side of the upper surface of the supporting base (219); the other side of the supporting base (219) is internally provided with a lifting oil cylinder (220), the telescopic end of the lifting oil cylinder (220) penetrates through the supporting base (219) and is in contact with and supports the bottom of the feeding end of the flocculating tank (206); The gumming device comprises a gumming platform (204) and a transmission roller (207) rotationally arranged on the gumming platform (204), at least one creping machine (205) is sequentially arranged at the discharge end of the transmission roller (207), and a transmission belt (208) is arranged at the discharge end of each creping machine (205); the discharge end of the last transmission belt (208) is located above the feeding end of a tearing machine (209); the discharge end of the tearing machine (209) is connected with the feeding end of a cleaning water tank (210); a feeding pump (211) is arranged at the discharge end of the cleaning water tank (210), and the discharge end of the feeding pump (211) is connected to a drying device through a pipeline. ​ The drying device comprises a conveying belt (212) located below the discharge end of a feeding pump (211); two drying bins (213) are sequentially arranged side by side along the material conveying direction on the conveying belt (212), the conveying belt (212) can convey materials in the drying bins (213) through a driving mechanism, the drying bins (213) are each provided with a heat preservation door curtain, and a centrifugal fan (214) and a supply fan (215) are correspondingly arranged at the top, respectively; a heating device (216) is correspondingly arranged at the air inlet of the supply fan (215), the air outlets of the supply fan (215) are respectively connected with the air inlets of the drying bins (213), and the air inlets of the centrifugal fans (214) are respectively connected with the air outlets of the drying bins (213); the front end of the air inlet pipeline of at least one drying bin (213) is provided with a drying device (218) close to the side of the heating device (216), and the drying device (218) is filled with drying medium; The conveying belt (212) can convey materials to the material table (221).

2. The aqueous phase synergic coagulation process line for the production of graphene oxide modified natural rubber masterbatch according to claim 1, characterized in that, A packing machine (217) is further included.

3. The aqueous phase synergic coagulation process line for the production of graphene oxide modified natural rubber masterbatch according to claim 1, characterized in that, The power range of the ultrasonic wave reaction kettle (103) is 1-10KW, and the temperature range is 25-120℃.

4. A production process of a water phase synergic coagulation process of graphene oxide modified natural rubber masterbatch, characterized by, The production line as claimed in any one of claims 1 to 3 is adopted, comprising the following steps: S1. The natural rubber latex in the latex storage tank (201) is pumped into the mixing kettle (203) through a metering pump, then deionized water is added and uniformly mixed to obtain natural rubber latex with a certain concentration; S2. The graphene oxide slurry in the graphene oxide slurry storage tank (101) and the modifier dispersion liquid in the modifier dispersion liquid storage tank (102) are sequentially added to the ultrasonic wave reaction kettle (103) through metering pumps, and are reacted at a certain temperature for a certain time to obtain a modified graphene oxide water dispersion liquid; S3. The modified graphene oxide water dispersion liquid in the ultrasonic wave reaction kettle (103) obtained in step S2 is added to the natural rubber latex in the mixing kettle (203) obtained in step S1, and is fully stirred and mixed to obtain a uniform graphene oxide modified natural rubber mixed emulsion; the graphene oxide modified natural rubber mixed emulsion and the flocculating agent in the flocculating agent storage tank (202) are sequentially added to the flocculation tank (206), are uniformly mixed and flocculated, and a flocculated graphene oxide modified natural rubber block is obtained; S4. The graphene oxide modified natural rubber flocculated block obtained in step S3 is sequentially dragged through each creping machine (205) and the transmission belt (208) by using the gluing device to continuously crepe, According to the gluing speed, the rotating speed of the creping machine (205) is controlled, so that the rubber sheet uniformly passes through the last transmission belt (208) and is conveyed to the pelletizer (209) for granulation without plugging. S5. The colloidal particles obtained in step S4 are washed to remove acid in a washing tank (210), and then pumped by a feeding pump (211) to a conveying belt (212); hot air generated by a heating device (216) is conveyed into drying bins (213) by air blowers (215) respectively, and the wet hot air in the drying bins (213) is discharged by centrifugal fans (214) respectively; the colloidal particles on the conveying belt (212) are sequentially dried in the drying bins (213), so that the material is dried by high temperature in the first drying bin (213) to remove most of the water, and then dried by low temperature dry air in the last drying bin (213) to quickly absorb the remaining water, so that the production efficiency and quality stability of the modified natural rubber masterbatch are improved at the same time; S6. The dried colloidal particles obtained in step S5 are weighed, and then packed by a packing machine (217) to obtain a high-performance graphene oxide modified natural rubber masterbatch product.

5. The process for the production of a water phase synergic coagulation process of a graphene oxide modified natural rubber masterbatch according to claim 4, characterized in that, In step S1, the concentration of the natural rubber latex obtained is such that it can be stably conveyed by a metering pump.

6. The process for the production of a water phase synergic coagulation process of a graphene oxide modified natural rubber masterbatch according to claim 4, characterized in that, In step S2, the concentration of the graphene oxide slurry is such that it can be stably conveyed by a metering pump, and the concentration of the modifier dispersion liquid is such that it can be stably conveyed by a metering pump.

7. The aqueous co-aggregation process for the production of graphene oxide modified natural rubber masterbatch according to claim 4, characterized in that, In step S5, the temperature of the first drying bin (213) ranges from 60°C to 95°C, and the temperature of the second drying bin (213) ranges from 25°C to 60°C.

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