CN116790159A - Preparation method of graphene modified oxidized polyethylene wax - Google Patents
Preparation method of graphene modified oxidized polyethylene wax Download PDFInfo
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- CN116790159A CN116790159A CN202310798237.8A CN202310798237A CN116790159A CN 116790159 A CN116790159 A CN 116790159A CN 202310798237 A CN202310798237 A CN 202310798237A CN 116790159 A CN116790159 A CN 116790159A
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- graphene
- workbench
- polyethylene wax
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 229910021389 graphene Inorganic materials 0.000 title claims abstract description 129
- 235000013873 oxidized polyethylene wax Nutrition 0.000 title claims abstract description 32
- 239000004209 oxidized polyethylene wax Substances 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 142
- 239000000843 powder Substances 0.000 claims abstract description 44
- 238000003756 stirring Methods 0.000 claims abstract description 36
- 239000000725 suspension Substances 0.000 claims abstract description 22
- 239000000203 mixture Substances 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000002096 quantum dot Substances 0.000 claims abstract description 5
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 5
- 239000010703 silicon Substances 0.000 claims abstract description 5
- 239000011701 zinc Substances 0.000 claims abstract description 5
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 5
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 238000010008 shearing Methods 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims description 16
- 238000007599 discharging Methods 0.000 claims description 11
- 238000001802 infusion Methods 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 19
- 238000011049 filling Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000002861 polymer material Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 38
- 239000003973 paint Substances 0.000 description 7
- 238000001914 filtration Methods 0.000 description 3
- 239000001993 wax Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
Abstract
The invention relates to the technical field of polymer material compositions, in particular to a preparation method of graphene modified oxidized polyethylene wax, which comprises the following steps: s1: grinding: adding graphene into a grinding device for grinding; s2: preparing graphene suspension: adding the ground graphene powder into a mixture of graphene quantum dot water to obtain graphene suspension; s3: adding graphene suspension into oxidized polyethylene wax slurry, epoxy resin and solvent a, mixing, and shearing at a rate of 6000-10000r/min to obtain a mixture; s4: adding nano zinc/silicon composite sol, a leveling agent and a curing agent into the mixture, and stirring for 50-130min at 100-140 ℃ to obtain graphene modified oxidized polyethylene wax; graphene is ground into powder through a grinding device to prepare graphene suspension, the obtained graphene suspension is more dispersed, the graphene suspension is more fully combined with oxidized polyethylene wax, and the corrosion resistance of the coating is better.
Description
Technical Field
The invention relates to the technical field of polymer material compositions, in particular to a preparation method of graphene modified oxidized polyethylene wax.
Background
Oxidized polyethylene waxes, known as OPE waxes; oxidized polyethylene wax is used in water paint and ink formulation in large quantity, it can improve the surface property of paint, offer excellent friction resistance, anti-adhesion and scratch resistance characteristic, add oxidized polyethylene wax can also improve the rheological property of the liquid, make paint, paint can be more even, labour-saving in the course of use; the color of the paint is brighter and more accurate, and color difference is not easy to generate; the graphene is an ultrathin two-dimensional nano material, has small pores, can effectively block corrosion factor to erode penetration degree, combines the graphene material with the traditional paint, and can greatly enhance the corrosion resistance of the paint.
Chinese patent CN202210291829.6 discloses a nano/polyethylene wax composite modified graphene coating and a preparation method thereof, wherein graphene, pre-dispersed oxidized polyethylene wax slurry, epoxy resin and a solvent a are mixed, nano zinc/silicon composite sol, a leveling agent and a curing agent are added into the mixture, and the mixture is heated and stirred to obtain the nano/polyethylene wax composite modified graphene coating.
Since graphene is insoluble in water and is difficult to dissolve in an organic solvent, graphene is directly added into the pre-dispersed oxidized polyethylene wax slurry, the epoxy resin and the solvent a to be mixed, the graphene is difficult to dissolve in the solvent, and the graphene cannot be fully combined with the coating.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to solve the problems that graphene is insoluble in water and insoluble in an organic solvent and cannot be fully combined with a coating in the prior art.
In order to solve the technical problems, the invention provides a preparation method of graphene modified oxidized polyethylene wax, which comprises the following steps:
s1: grinding: adding graphene into a grinding device for grinding;
s2: preparing graphene suspension: adding the ground graphene powder into a mixture of graphene quantum dot water to obtain graphene suspension;
s3: adding graphene suspension into oxidized polyethylene wax slurry, epoxy resin and solvent a, mixing, and shearing at a rate of 6000-10000r/min to obtain a mixture;
s4: adding nano zinc/silicon composite sol, a leveling agent and a curing agent into the mixture, and stirring for 50-130min at 100-140 ℃ to obtain graphene modified oxidized polyethylene wax;
in one embodiment of the invention, the grinding device comprises a table; the workbench is fixedly connected with a supporting frame; the jaw crusher is fixedly connected to the support frame; the support frame is fixedly connected with a first motor; the output end of the first motor is fixedly connected with a first belt pulley; a belt is connected between the first belt pulley and the jaw crusher in a transmission way; the workbench is fixedly connected with a conveyor; one end of the conveyor is positioned below the supporting frame, and the other end of the conveyor is positioned at one side of the supporting frame; the support frame is provided with a discharging opening matched with the jaw crusher; the blanking opening is positioned above the conveyor; one end of the conveyor is fixedly connected with a blanking channel; the workbench is fixedly connected with a grinding assembly; the blanking channel is positioned above the grinding component;
in one embodiment of the invention, the conveyor comprises a conveyor frame; the workbench is fixedly connected with a conveying rack; two ends of the conveying frame are respectively and rotatably connected with a driving roller; the workbench is fixedly connected with a second motor; the output end of one of the driving rollers and the output end of the second motor are fixedly connected with a second belt pulley through a shaft; a belt is connected between the second belt pulleys in a transmission way; a conveyor belt is connected between the two driving rollers in a driving way; a discharging opening formed in the supporting frame is positioned above the conveying belt; one end of the conveying frame, which is far away from the jaw crusher, is fixedly connected with a blanking channel;
in one embodiment of the invention, one end of the conveying rack, which is positioned below the supporting frame, is horizontally arranged, and one end of the conveying rack, which is far away from the supporting frame, is obliquely arranged; the horizontal height of one end of the conveying rack far away from the supporting frame is larger than that of one end of the conveying rack below the supporting frame; the middle part of the conveying rack is rotationally connected with a tensioning roller; the middle part of the conveying rack is rotationally connected with two limiting wheels; the limiting wheels are positioned on two sides above the tensioning roller; the tensioning roller and the limiting wheel are in contact with the conveyor belt; a plurality of guide plates are fixedly connected to the conveyor belt;
in one embodiment of the invention, the abrasive assembly includes an abrasive base; the workbench is fixedly connected with a grinding base; a cavity is formed in the grinding base; a third motor is fixedly connected in the cavity of the grinding base; the output end of the third motor penetrates through the top of the grinding base, and is rotatably connected with a rotating disc; a grinding bin is fixedly connected above the grinding base; the grinding bin is arranged outside the rotating disc and is rotationally connected with the rotating disc; a plurality of grinding wheel assemblies are arranged on the rotating disc; the grinding wheel assembly is fixedly connected with the workbench; the rotating disc is provided with an annular grinding groove; the grinding wheel assembly is contacted with the bottom of the grinding groove; the blanking channel is positioned in the middle of the upper part of the rotating disc;
in one embodiment of the invention, the grinding wheel assembly includes an L-shaped grinding wheel support; a plurality of L-shaped grinding wheel brackets are fixedly connected to the workbench; the other end of the L-shaped grinding wheel bracket is fixedly connected with a motor box; a fourth motor is fixedly connected in the motor box; the output end of the fourth motor penetrates through the motor case and is fixedly connected with the grinding wheel; the grinding wheel is rotationally connected with the motor box; the bottom of the grinding wheel is contacted with the bottom of the grinding groove;
in one embodiment of the invention, one end of the L-shaped grinding wheel bracket is fixedly connected with the workbench, and the other end of the L-shaped grinding wheel bracket is fixedly connected with the motor box;
in one embodiment of the invention, a vent pipe is communicated with the grinding base; the vent pipe is communicated with an external air pump; a plurality of vent holes are formed in the top of the grinding base and the grinding groove; the lower end of the blanking channel is fixedly connected with a circular pipeline; the lower end of the circular pipeline is communicated with a plurality of powder suction covers; a filter plate is fixedly connected in the powder suction cover; one end of the circular pipeline is communicated with a feeding channel; the other end of the feeding channel is communicated with an air pump; a stirring barrel is fixedly connected to the workbench; the other end of the feeding channel is communicated with the stirring barrel;
in one embodiment of the invention, a charging port is communicated with the stirring barrel; a water inlet is formed in the stirring barrel; the water inlet is connected with a water pipe;
in one embodiment of the invention, the lower end of the stirring barrel is communicated with a transfusion tube; an automatic valve is arranged on the infusion tube; an annular synchronous belt workbench is arranged on one side, close to the stirring barrel, of the workbench; a plurality of operation tables are connected to the annular synchronous belt workbench in a sliding manner; the operating platform is connected with a liquid storage cylinder in an inserting and embedding manner; the liquid storage cylinder is positioned below the infusion tube.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the invention, graphene is added from the feed inlet of the jaw crusher, and the first motor is started to drive the graphene in the jaw crusher to crush through the first belt pulley and the belt, so that graphene particles are formed; the small graphene particles fall onto a conveyor through a discharging opening formed in the supporting frame, and the small graphene particles are sent to a discharging channel by starting the conveyor; the small graphene particles fall into the grinding assembly through the blanking channel to be ground, and the small graphene particles are ground into graphene powder; grinding is carried out after crushing, graphene is ground to be finer, the obtained graphene suspension is more dispersed, the graphene suspension is more fully combined with oxidized polyethylene wax, and the corrosion resistance of the coating is better;
according to the invention, graphene particles in the grinding groove are ground into small powder by the grinding wheel, the grinding groove is a mixture of the graphene particles and the graphene powder, and the air pump is started to send gas into the grinding base through the vent pipe and then send the gas into the grinding groove through the vent hole, so that the graphene powder in the grinding groove is blown up; then starting an air pump, sucking the blown graphene powder into a stirring barrel through a feeding channel, a circular pipeline and a powder suction cover, filtering larger graphene powder or small particles below the filter plate by the filter plate, and returning the graphene powder or the small particles on the filter plate to a rotating disc after the air pump and the air pump stop working, so as to continue to be ground by a grinding wheel; and separating the graphene powder from the graphene small particles, wherein the graphene finally entering the stirring barrel is very fine powder.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic diagram showing a three-dimensional structure according to an embodiment of the present invention;
FIG. 3 is a schematic view of a jaw crusher according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a conveyor structure according to an embodiment of the invention;
FIG. 5 is a cross-sectional view of a conveyor structure of one embodiment of the invention;
FIG. 6 is a cross-sectional view of an abrasive assembly according to one embodiment of the present invention;
FIG. 7 is a schematic view of a polishing assembly according to an embodiment of the present invention.
Description of the specification reference numerals:
1. a work table; 2. a support frame; 3. jaw crusher; 4. a first motor; 5. a first pulley; 6. a conveyor; 61. a conveying rack; 62. a driving roller; 63. a second pulley; 64. a second motor; 65. a conveyor belt; 66. a tension roller; 67. a limiting wheel; 68. a guide plate; 7. a blanking channel; 8. a grinding assembly; 81. grinding a base; 82. a third motor; 83. a rotating disc; 84. a grinding bin; 85. a grinding wheel assembly; 851. an L-shaped grinding wheel bracket; 852. a motor case; 853. a fourth motor; 854. a grinding wheel; 86. grinding the groove; 9. a vent pipe; 10. a vent hole; 11. a circular pipe; 12. a powder suction cover; 13. a filter plate; 14. a feed channel; 15. a stirring barrel; 16. a feed inlet; 17. a water inlet; 18. an infusion tube; 19. an annular synchronous belt workbench; 20. an operation table; 21. a liquid storage cylinder.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
The preparation method of the graphene modified oxidized polyethylene wax comprises the following steps:
s1: grinding: adding graphene into a grinding device for grinding;
s2: preparing graphene suspension: adding the ground graphene powder into a mixture of graphene quantum dot water to obtain graphene suspension;
s3: adding graphene suspension into oxidized polyethylene wax slurry, epoxy resin and a solvent a, mixing, and shearing at a rate of 8000r/min to obtain a mixture;
s4: adding nano zinc/silicon composite sol, a leveling agent and a curing agent into the mixture, and stirring for 110min at 120 ℃ to obtain graphene modified oxidized polyethylene wax;
referring to fig. 1 to 7, as an embodiment of the present invention, the polishing apparatus includes a table 1;
the workbench 1 is fixedly connected with a supporting frame 2; the jaw crusher 3 is fixedly connected to the support frame 2; the support frame 2 is fixedly connected with a first motor 4; the output end of the first motor 4 is fixedly connected with a first belt pulley 5; a belt is connected between the first belt pulley 5 and the jaw crusher 3 in a transmission manner; the workbench 1 is fixedly connected with a conveyor 6; one end of the conveyor 6 is positioned below the support frame 2, and the other end of the conveyor 6 is positioned at one side of the support frame 2; the support frame 2 is provided with a discharging opening matched with the jaw crusher 3; the blanking opening is positioned above the conveyor 6; one end of the conveyor 6 is fixedly connected with a blanking channel 7; the workbench 1 is fixedly connected with a grinding assembly 8; the blanking channel 7 is positioned above the grinding assembly 8;
during operation, graphene is added from a feed inlet of the jaw crusher 3, and the first motor 4 is started, so that the first motor 4 drives the graphene in the jaw crusher 3 to crush through the first belt pulley 5 and the belt to become graphene small particles; the small graphene particles fall onto the conveyor 6 through a discharging opening formed in the support frame 2, and the small graphene particles are sent to the discharging channel 7 by starting the conveyor 6; the small graphene particles fall into a grinding assembly 8 through a blanking channel 7 to be ground, and the small graphene particles are ground into graphene powder; grinding is carried out after crushing, graphene is ground to be finer, the obtained graphene suspension is more dispersed, the graphene suspension is more fully combined with oxidized polyethylene wax, and the corrosion resistance of the coating is better;
the conveyor 6 comprises a conveyor frame 61; a conveying frame 61 is fixedly connected to the workbench 1; two ends of the conveying frame 61 are respectively and rotatably connected with a driving roller 62; a second motor 64 is fixedly connected to the workbench 1; the output end of one of the driving roller 62 and the second motor 64 is fixedly connected with a second belt pulley 63 through a shaft; a belt is connected between the second belt pulleys 63 in a transmission way; a conveyor belt 65 is in transmission connection between the two transmission rollers 62; a discharging opening formed in the support frame 2 is positioned above the conveyor belt 65; one end of the conveying frame 61 far away from the jaw crusher 3 is fixedly connected with a blanking channel 7;
when the jaw crusher is in operation, by starting the second motor 64, the second motor 64 drives one of the driving rollers 62 to rotate through the second belt pulley 63 and the belt, and the driving roller 62 drives the other driving roller 62 to move through the conveying belt 65, so that small graphene particles crushed by the jaw crusher 3 are conveyed to the blanking channel 7;
one end of the conveying frame 61, which is positioned below the support frame 2, is horizontally arranged, and one end of the conveying frame 61, which is far away from the support frame 2, is obliquely arranged; and the horizontal height of one end of the conveying frame 61 far away from the supporting frame 2 is greater than that of one end of the conveying frame 61 below the supporting frame 2; the middle part of the conveying frame 61 is rotatably connected with a tensioning roller 66; the middle part of the conveying frame 61 is rotatably connected with two limit wheels 67; the limiting wheels 67 are positioned on two sides above the tensioning roller 66; the tensioning roller 66 and the limit wheel 67 are in contact with the conveyor belt 65; a plurality of guide plates 68 are fixedly connected to the conveyor belt 65;
when in operation, the conveyor belt 65 is sleeved between the two driving rollers 62, and the conveyor belt 65 between the driving rollers 62 is provided with an upper layer and a lower layer; the tensioning roller 66 is positioned between the upper layer of conveying belt 65 and the lower layer of conveying belt 65, the upper surface and the lower surface of the upper layer of conveying belt 65 are respectively contacted with the limiting wheel 67 and the tensioning roller 66, so that the upper layer of conveying belt 65 and the lower layer of conveying belt 65 are bent and tensioned, the conveying belt 65 can convey graphene small particles to a higher horizontal height through the guide plate 68, and the graphene small particles can conveniently enter the grinding assembly 8 through the blanking channel 7;
the grinding assembly 8 includes a grinding base 81; the workbench 1 is fixedly connected with a grinding base 81; a cavity is formed in the grinding base 81; a third motor 82 is fixedly connected in the cavity of the grinding base 81; the output end of the third motor 82 penetrates through the top of the grinding base 81, and is rotatably connected with a rotating disc 83; a grinding bin 84 is fixedly connected above the grinding base 81; the grinding bin 84 is arranged outside the rotating disc 83 and is rotationally connected with the rotating disc 83; a plurality of grinding wheel assemblies 85 are arranged on the rotating disc 83; the grinding wheel assembly 85 is fixedly connected with the workbench 1; the rotating disc 83 is provided with an annular grinding groove 86; the grinding wheel assembly 85 is in contact with the bottom of the grinding groove 86; the blanking channel 7 is positioned in the middle of the upper part of the rotating disc 83;
during operation, graphene small particles enter the middle part of the rotating disc 83 through the blanking channel 7, the rotating disc 83 rotates by starting the third motor 82, the graphene small particles are subjected to centrifugal force when rotating along with the rotating disc and outwards move into the annular grinding groove 86, and then the grinding wheel assembly 85 is started to intensively grind the graphene small particles in the grinding groove 86 into powder by starting the grinding wheel assembly 85, so that the graphene is ground more fully, and the graphene powder is ground more finely and less;
the grinding wheel assembly 85 includes an L-shaped grinding wheel bracket 851; a plurality of L-shaped grinding wheel brackets 851 are fixedly connected to the workbench 1; the other end of the L-shaped grinding wheel bracket 851 is fixedly connected with a motor box 852; a fourth motor 853 is fixedly connected to the motor housing 852; the output end of the fourth motor 853 penetrates through the motor case 852 and is fixedly connected with the grinding wheel 854; the grinding wheel 854 is rotatably connected with the motor box 852; the bottom of the grinding wheel 854 contacts the bottom of the grinding groove 86;
in operation, by activating the fourth motor 853; the fourth motor 853 drives the grinding wheel 854 to rotate, and the small graphene particles in the grinding groove 86 are fully ground in cooperation with the rotation of the rotating disc 83;
the grinding base 81 is communicated with a vent pipe 9; the breather pipe 9 is communicated with an external air pump; a plurality of vent holes 10 are formed in the top of the grinding base 81 and the grinding groove 86; the lower end of the blanking channel 7 is fixedly connected with a circular pipeline 11; the lower end of the circular pipeline 11 is communicated with a plurality of powder suction covers 12; a filter plate 13 is fixedly connected in the powder suction cover 12; one end of the circular pipeline 11 is communicated with a feeding channel 14; the other end of the feeding channel 14 is communicated with an air pump; a stirring barrel 15 is fixedly connected to the workbench 1; the other end of the feeding channel 14 is communicated with a stirring barrel 15;
during operation, graphene small particles in the grinding groove 86 are ground into small powder by the grinding wheel 854, the grinding groove 86 is filled with a mixture of the graphene small particles and the graphene powder, and the air pump is started to send air into the grinding base 81 through the air pipe 9 and then send the air into the grinding groove 86 through the air hole 10 to blow up the graphene powder in the grinding groove 86; then, starting an air pump, sucking the blown graphene powder into a stirring barrel 15 through a feeding channel 14, a circular pipeline 11 and a powder suction cover 12, filtering larger graphene powder or small particles below the filter plate 13 by the filter plate 13, and returning the graphene powder or small particles on the filter plate 13 to the rotating disc 83 after the air pump and the air pump stop working, and continuously grinding by a grinding wheel 854; separating graphene powder from small graphene particles, wherein the graphene finally enters the stirring barrel 15 as very fine powder;
the stirring barrel 15 is communicated with a feed inlet 16; a water adding port 17 is formed in the stirring barrel 15; a water pipe is connected to the water inlet 17;
when the graphene quantum dot stirring device works, graphene quantum dots are added into a stirring barrel 15 from a charging port 16, water is added into the stirring barrel 15 from a charging port 17, graphene powder is added into the stirring barrel 15 from a feeding channel 14, and the stirring barrel 15 is started to obtain graphene suspension;
the lower end of the stirring barrel 15 is communicated with a transfusion tube 18; an automatic valve is arranged on the infusion tube 18; an annular synchronous belt workbench 19 is arranged on one side of the workbench 1, which is close to the stirring barrel 15; a plurality of operation tables 20 are connected to the annular synchronous belt workbench 19 in a sliding manner; the operation table 20 is connected with a liquid storage cylinder 21 in an inserting and embedding manner; the liquid storage cylinder 21 is positioned below the infusion tube 18;
when the automatic valve is started during operation, the graphene suspension stirred in the stirring barrel flows out of the infusion tube 18 and flows into the liquid storage cylinders 21, after the automatic valve is closed after a certain time, the next liquid storage cylinder 21 is turned to the lower part of the infusion tube 18 by the annular synchronous belt workbench 19, the automatic valve is started again, the liquid storage cylinders 21 are charged, and the plurality of liquid storage cylinders 21 are continuously charged automatically by the annular synchronous belt workbench 19.
Working principle:
during operation, graphene is added from a feed inlet of the jaw crusher 3, and the first motor 4 is started, so that the first motor 4 drives the graphene in the jaw crusher 3 to crush through the first belt pulley 5 and the belt to become graphene small particles; the graphene small particles fall onto the conveyor 6 through a discharging opening formed in the support frame 2, the second motor 64 is started, one of the driving rollers 62 is driven to rotate by the second motor 64 through the second belt pulley 63 and the belt, the other driving roller 62 is driven to move by the driving roller 62 through the conveying belt 65, and the graphene small particles crushed by the jaw crusher 3 are conveyed to the discharging channel 7; the small graphene particles enter the middle part of the rotating disc 83 through the blanking channel 7, the rotating disc 83 rotates by starting the third motor 82, the small graphene particles are subjected to centrifugal force when rotating along with the rotating disc and move outwards into the annular grinding groove 86, and the fourth motor 853 is started; the fourth motor 853 drives the grinding wheel 854 to rotate, and the small graphene particles in the grinding groove 86 are fully ground in cooperation with the rotation of the rotating disc 83; the graphene small particles in the grinding groove 86 are ground into small powder by the grinding wheel 854, the grinding groove 86 is a mixture of the graphene small particles and the graphene powder, the air pump is started to send air into the grinding base 81 through the air pipe 9, and then the air is sent into the grinding groove 86 through the air hole 10 to blow up the graphene powder in the grinding groove 86; then, starting an air pump, sucking the blown graphene powder into a stirring barrel 15 through a feeding channel 14, a circular pipeline 11 and a powder suction cover 12, filtering larger graphene powder or small particles below the filter plate 13 by the filter plate 13, and returning the graphene powder or small particles on the filter plate 13 to the rotating disc 83 after the air pump and the air pump stop working, and continuously grinding by a grinding wheel 854; separating graphene powder from small graphene particles, wherein the graphene finally enters the stirring barrel 15 as very fine powder; when the automatic valve is started during operation, the graphene suspension stirred in the stirring barrel flows out of the infusion tube 18 and flows into the liquid storage cylinders 21, after the automatic valve is closed after a certain time, the next liquid storage cylinder 21 is turned to the lower part of the infusion tube 18 by the annular synchronous belt workbench 19, the automatic valve is started again, the liquid storage cylinders 21 are charged, and the plurality of liquid storage cylinders 21 are continuously charged automatically by the annular synchronous belt workbench 19.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
1. A preparation method of graphene modified oxidized polyethylene wax is characterized by comprising the following steps: the method comprises the following steps:
s1: grinding: adding graphene into a grinding device for grinding;
s2: preparing graphene suspension: adding the ground graphene powder into a mixture of graphene quantum dot water to obtain graphene suspension;
s3: adding graphene suspension into oxidized polyethylene wax slurry, epoxy resin and solvent a, mixing, and shearing at a rate of 6000-10000r/min to obtain a mixture;
s4: adding nano zinc/silicon composite sol, a leveling agent and a curing agent into the mixture, and stirring for 50-130min at 100-140 ℃ to obtain the graphene modified oxidized polyethylene wax.
2. The method for preparing graphene modified oxidized polyethylene wax according to claim 1, wherein the method comprises the following steps: the grinding device comprises a workbench (1); the workbench (1) is fixedly connected with a supporting frame (2); the jaw crusher (3) is fixedly connected to the support frame (2); a first motor (4) is fixedly connected to the support frame (2); the output end of the first motor (4) is fixedly connected with a first belt pulley (5); a belt is connected between the first belt pulley (5) and the jaw crusher (3) in a transmission way; a conveyor (6) is fixedly connected to the workbench (1); one end of the conveyor (6) is positioned below the supporting frame (2), and the other end of the conveyor (6) is positioned at one side of the supporting frame (2); the support frame (2) is provided with a discharging opening matched with the jaw crusher (3); the blanking opening is positioned above the conveyor (6); one end of the conveyor (6) is fixedly connected with a blanking channel (7); the workbench (1) is fixedly connected with a grinding assembly (8); the blanking channel (7) is positioned above the grinding component (8).
3. The method for preparing graphene modified oxidized polyethylene wax according to claim 2, wherein the method comprises the following steps: the conveyor (6) comprises a conveyor frame (61); a conveying rack (61) is fixedly connected to the workbench (1); two ends of the conveying frame (61) are respectively and rotatably connected with a driving roller (62); a second motor (64) is fixedly connected to the workbench (1); the output end of one of the driving rollers (62) and the output end of the second motor (64) are fixedly connected with a second belt pulley (63) through a shaft; a belt is connected between the second belt pulleys (63) in a transmission way; a conveyor belt (65) is connected between the two driving rollers (62) in a driving way; a blanking opening formed in the support frame (2) is positioned above the conveying belt (65); one end of the conveying frame (61) far away from the jaw crusher (3) is fixedly connected with a blanking channel (7).
4. The method for preparing graphene-modified oxidized polyethylene wax according to claim 3, wherein the method comprises the following steps: one end of the conveying rack (61) positioned below the supporting frame (2) is horizontally arranged, and one end of the conveying rack (61) far away from the supporting frame (2) is obliquely arranged; the horizontal height of one end of the conveying rack (61) far away from the supporting frame (2) is larger than that of one end of the conveying rack (61) below the supporting frame (2); the middle part of the conveying frame (61) is rotatably connected with a tensioning roller (66); the middle part of the conveying rack (61) is rotatably connected with two limit wheels (67); the limiting wheels (67) are positioned on two sides above the tensioning roller (66); the tensioning roller (66) and the limiting wheel (67) are in contact with the conveyor belt (65); a plurality of guide plates (68) are fixedly connected to the conveyor belt (65).
5. The method for preparing graphene modified oxidized polyethylene wax according to claim 4, wherein the method comprises the following steps: the grinding assembly (8) comprises a grinding base (81); the workbench (1) is fixedly connected with a grinding base (81); a cavity is formed in the grinding base (81); a third motor (82) is fixedly connected in the cavity of the grinding base (81); the output end of the third motor (82) penetrates through the top of the grinding base (81), and is rotatably connected with a rotating disc (83); a grinding bin (84) is fixedly connected above the grinding base (81); the grinding bin (84) is arranged outside the rotating disc (83) and is rotationally connected with the rotating disc (83); a plurality of grinding wheel assemblies (85) are arranged on the rotating disc (83); the grinding wheel assembly (85) is fixedly connected with the workbench (1); an annular grinding groove (86) is formed in the rotating disc (83); the grinding wheel assembly (85) is contacted with the bottom of the grinding groove (86); the blanking channel (7) is positioned in the middle of the upper part of the rotating disc (83).
6. The method for preparing graphene modified oxidized polyethylene wax according to claim 5, wherein the method comprises the following steps: the grinding wheel assembly (85) comprises an L-shaped grinding wheel bracket (851); a plurality of L-shaped grinding wheel brackets (851) are fixedly connected to the workbench (1); the other end of the L-shaped grinding wheel bracket (851) is fixedly connected with a motor box (852); a fourth motor (853) is fixedly connected in the motor box (852); the output end of the fourth motor (853) penetrates through the motor case (852) and is fixedly connected with the grinding wheel (854); the grinding wheel (854) is rotationally connected with the motor box (852); the bottom of the grinding wheel (854) is in contact with the bottom of the grinding groove (86).
7. The method for preparing graphene modified oxidized polyethylene wax according to claim 6, wherein the method comprises the following steps: one end of the L-shaped grinding wheel bracket (851) is fixedly connected with the workbench (1), and the other end of the L-shaped grinding wheel bracket (851) is fixedly connected with the motor box (852).
8. The method for preparing graphene modified oxidized polyethylene wax according to claim 7, wherein the method comprises the following steps: the grinding base (81) is communicated with a vent pipe (9); the breather pipe (9) is communicated with an external air pump; a plurality of vent holes (10) are formed in the top of the grinding base (81) and the grinding groove (86); the lower end of the blanking channel (7) is fixedly connected with a circular pipeline (11); the lower end of the circular pipeline (11) is communicated with a plurality of powder suction covers (12); a filter plate (13) is fixedly connected in the powder suction cover (12); one end of the circular pipeline (11) is communicated with a feeding channel (14); the other end of the feeding channel (14) is communicated with an air extracting pump; a stirring barrel (15) is fixedly connected to the workbench (1); the other end of the feeding channel (14) is communicated with the stirring barrel (15).
9. The method for preparing graphene modified oxidized polyethylene wax according to claim 8, wherein the method comprises the following steps: a charging port (16) is communicated with the stirring barrel (15); a water adding port (17) is formed in the stirring barrel (15); the water filling port (17) is connected with a water pipe.
10. The method for preparing graphene modified oxidized polyethylene wax according to claim 9, wherein the method comprises the following steps: the lower end of the stirring barrel (15) is communicated with a transfusion tube (18); an automatic valve is arranged on the infusion tube (18); an annular synchronous belt workbench (19) is arranged on one side, close to the stirring barrel (15), of the workbench (1); a plurality of operation tables (20) are connected to the annular synchronous belt workbench (19) in a sliding manner; a liquid storage cylinder (21) is inserted and connected onto the operating platform (20); the liquid storage cylinder (21) is positioned below the infusion tube (18).
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