CN112662034A - Wear-resistant graphene master batch applied to PE (polyethylene) pipe and preparation method thereof - Google Patents
Wear-resistant graphene master batch applied to PE (polyethylene) pipe and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a wear-resistant graphene master batch applied to PE (polyethylene) pipes and a preparation method thereof, wherein the wear-resistant graphene master batch applied to the PE pipes comprises 40-50 parts of resin, 10-15 parts of pretreated nano-graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer; through the nanometer graphite alkene that increases the preliminary treatment in the raw materials, the carrier that colorizes of modified masterbatch is done to nanometer graphite alkene, because its special lamellar structure, the hexagon is the two-dimensional carbon nanomaterial of honeycomb lattice, make the wear-resisting graphite alkene master batch of being applied to PE tubular product of preparation, have very high wearability and resistance to pressure, nanometer graphite alkene simultaneously, the tinctorial strength is further, the wear-resisting graphite alkene master batch of preparation, the quantity is still less, pigment concentration is higher, the utilization ratio is higher, and it is even to color, whole colour difference is little.
Description
Technical Field
The invention relates to the technical field of preparation of wear-resistant graphene master batches, and particularly relates to a wear-resistant graphene master batch applied to a PE (polyethylene) pipe and a preparation method thereof.
Background
The PE (polyethylene) material is widely applied to the field of water supply pipe manufacturing due to the characteristics of high strength, corrosion resistance, no toxicity and the like. Because it can not rust, it is an ideal pipe material for replacing common iron water supply pipe; the reinforcing master batch wear-resisting effect that the tradition was applied to PE tubular product is not obvious, the production step is loaded down with trivial details, low in production efficiency, the reinforcing master batch has higher moisture content, and coloring ability is outstanding inadequately, consequently this reinforcing master batch is heated when leading to follow-up production product and melts the time inconsistent, melt unevenly, and produce the bubble easily, the PE tubular product wear resistance of coproduction is not enough, can't be applied to the more place of multiple friction, also can't guarantee the PE tubular product of production and color evenly, reinforcing master batch use amount is on a large side simultaneously, and the production cost is increased.
Disclosure of Invention
In order to overcome the technical problems, the invention aims to provide a wear-resistant graphene master batch applied to a PE pipe and a preparation method thereof, wherein the wear-resistant graphene master batch comprises the following steps:
through the nanometer graphite alkene that increases the preliminary treatment in the raw materials, the colouring carrier of modified masterbatch is done to nanometer graphite alkene, because its special lamellar structure, the hexagon is the two-dimensional carbon nanomaterial of honeycomb lattice, be one of the material that known intensity is the highest, it is high to compare traditional carbon black has the wearability, compressive property etc., make the wear-resisting graphite alkene master batch of being applied to PE tubular product of preparation, very high wearability and compressive resistance have, nanometer graphite alkene is because its special lamellar structure simultaneously, the hexagon is the honeycomb lattice, the tinctorial ability is further, the wear-resisting graphite alkene master batch of preparation, the quantity is still less, pigment concentration is higher, the utilization ratio is higher, and it is even to color, whole colour difference is little.
The drying mechanism comprises four groups of drying mechanisms, a large amount of wear-resistant graphene master batch base materials can be dried, the overall drying speed is improved, a second motor is arranged to drive a third rotating shaft and a spiral stirring sheet to stir, meanwhile, a servo motor is arranged to drive the drying mechanism to perform reciprocating forward and backward rotation integrally, time is set manually and the drying mechanism is turned regularly, finally, a first motor is arranged to drive a first rotating shaft, an installation mechanism and a drying mechanism to perform circular motion around the first rotating shaft, and a first semicircular lug and a second semicircular lug move relatively to each other, so that the installation mechanism and the drying mechanism vibrate, the wear-resistant graphene master batches in the drying cylinder are vibrated, and the wear-resistant graphene master batches in the drying cylinder continuously move in the drying cylinder through the quadruple movement arrangement, and hot air is blown more conveniently, the whole drying speed is improved, the time of the whole preparation process is shortened, and the efficiency is improved.
The air inlet is formed in the bottom, so that hot air can be blown upwards from the bottom, the floating speed of the hot air is increased, the drying speed is increased, and the first screen mesh and the second screen mesh are arranged at the same time, so that color master batches are prevented from falling into the air inlet and the air outlet to cause blockage; through both ends set up the spring about the connecting rod for installation mechanism can alleviate the impact force at the vibration in-process, avoids equipment to damage.
The purpose of the invention can be realized by the following technical scheme:
the wear-resistant graphene master batch applied to the PE pipe is prepared from the following raw materials in parts by weight: 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer;
the wear-resistant graphene master batch applied to the PE pipe is prepared by the following steps:
step one, mixing materials: weighing 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer according to parts by weight, putting into a mixer, and uniformly stirring at 100-200r/min to obtain a mixture A;
step two, banburying: adding the mixture A into an internal mixer, and processing and internally mixing to obtain a mixture B, wherein the internal mixing temperature is 140-165 ℃;
step three, extruding and granulating: feeding the mixture B into a double-screw extruder, and extruding and granulating to obtain the wear-resistant graphene master batch base material, wherein the screw rotating speed is 300-400r/min, and the granulating temperature is 180-195 ℃;
pouring the wear-resistant graphene master batch base material into a discharging cavity of the drying device, opening the first valve and the second electromagnetic valve, guiding the wear-resistant graphene master batch base material into the drying cylinder, closing the second electromagnetic valve, starting the second motor to drive the third rotating shaft to rotate, driving the spiral stirring sheet to rotate by the third rotating shaft, stirring the wear-resistant graphene master batch base material in the drying cylinder, simultaneously starting the hot air blower, drying the wear-resistant graphene master batch base material in the drying cylinder through the air inlet, discharging the dried moisture from the air outlet main hole, starting the servo motor while starting the hot air blower, driving the drying mechanism to rotate in the positive and negative directions, simultaneously starting the first motor to drive the first rotating shaft to rotate, driving the mounting mechanism and the drying mechanism to rotate around the vertical central axis of the first rotating shaft by the first semicircular lug and the second semicircular lug to move relatively, vibrating the wear-resistant graphene master batch base material in the drying cylinder, and after drying is finished, opening the first electromagnetic valve, and discharging the wear-resistant graphene master batch through a discharge pipe.
As a further scheme of the invention: the pretreated nano graphene is obtained by carrying out surface treatment on the nano graphene in an atomization spraying mode by using a surface synergist and a hyperdispersant and then drying.
As a further scheme of the invention: the hyperdispersant comprises a polyolefin hyperdispersant and a graft copolymer hyperdispersant.
As a further scheme of the invention: the pretreated nano graphene comprises the following raw materials in parts by weight: 10-20 parts of nano graphene, 2-5 parts of polyolefin hyperdispersant, 2-5 parts of graft copolymer hyperdispersant and 1-2 parts of surface synergist;
the surface synergist is titanate.
As a further scheme of the invention: the lubricant is polyolefin oligomer, the processing aid is polyethylene graft, the antioxidant is hindered phenol antioxidant, and the light stabilizer is benzotriazole ultraviolet absorbent.
A preparation method of wear-resistant graphene master batch applied to a PE pipe comprises the following steps:
step one, mixing materials: weighing 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer according to parts by weight, putting into a mixer, and uniformly stirring at 100-200r/min to obtain a mixture A;
step two, banburying: adding the mixture A into an internal mixer, and processing and internally mixing to obtain a mixture B, wherein the internal mixing temperature is 140-165 ℃;
step three, extruding and granulating: feeding the mixture B into a double-screw extruder, and extruding and granulating to obtain the wear-resistant graphene master batch base material, wherein the screw rotating speed is 300-400r/min, and the granulating temperature is 180-195 ℃;
pouring the wear-resistant graphene master batch base material into a discharging cavity of the drying device, opening the first valve and the second electromagnetic valve, guiding the wear-resistant graphene master batch base material into the drying cylinder, closing the second electromagnetic valve, starting the second motor to drive the third rotating shaft to rotate, driving the spiral stirring sheet to rotate by the third rotating shaft, stirring the wear-resistant graphene master batch base material in the drying cylinder, simultaneously starting the hot air blower, drying the wear-resistant graphene master batch base material in the drying cylinder through the air inlet, discharging the dried moisture from the air outlet main hole, starting the servo motor while starting the hot air blower, driving the drying mechanism to rotate in the positive and negative directions, simultaneously starting the first motor to drive the first rotating shaft to rotate, driving the mounting mechanism and the drying mechanism to rotate around the vertical central axis of the first rotating shaft by the first semicircular lug and the second semicircular lug to move relatively, vibrating the wear-resistant graphene master batch base material in the drying cylinder, and after drying is finished, opening the first electromagnetic valve, and discharging the wear-resistant graphene master batch through a discharge pipe.
As a further scheme of the invention: drying device in step four includes drying bench, drop feed mechanism, installation mechanism, drying mechanism, be provided with drop feed mechanism in the middle of the drying bench top, drop feed mechanism bottom just is located the drying bench top and is provided with four installation mechanisms, four installation mechanism is around angular distribution such as drop feed mechanism, installation mechanism internally mounted has drying mechanism.
As a further scheme of the invention: the discharging mechanism comprises a first motor, a first rotating shaft, an installation boss, a second installation groove, a bearing platform, a discharging cavity and a discharging pipe, the first motor is fixedly installed inside the first installation groove, an output shaft of the first motor is fixedly connected with the first rotating shaft, the bottom end of the first rotating shaft is rotatably installed in the first installation groove, the installation boss is arranged at the bottom of the first rotating shaft, the bottom surface of the installation boss is abutted against the top surface of the drying platform, four second installation grooves are formed in the middle shaft surface of the first rotating shaft, the four second installation grooves are distributed around the vertical central axis of the first rotating shaft at equal angles, the bearing platform is arranged at the top of the first rotating shaft, and the discharging platform is fixedly installed at the top of the bearing platform, the feeding table is characterized in that a feeding cavity is formed in the feeding table, four feeding pipes are fixedly mounted at the bottom of the feeding cavity, the four feeding pipes are distributed around the center of the feeding table at equal angles, and a first valve is arranged on each feeding pipe.
As a further scheme of the invention: installation mechanism includes connecting rod, backup pad, U type seat, mounting hole, second semicircle lug, connecting rod slidable mounting is in the second mounting groove that corresponds, be provided with two springs, two between connecting rod and the second mounting groove the spring sets up about the connecting rod symmetry, connecting rod other end fixedly connected with U type seat, U type seat bottom is provided with a plurality of second semicircle lug, U type seat sets up at the drying bench top, the mounting hole has been seted up to U type seat top bilateral symmetry, U type seat top is close to connecting rod one side and is provided with the backup pad.
As a further scheme of the invention: the drying mechanism comprises a drying cylinder, a second rotating shaft is symmetrically arranged in the middle of the outer portion of the drying cylinder, the drying cylinder is rotatably installed in an installation hole through the second rotating shaft, the second rotating shaft is arranged on the inner side and fixedly connected with a servo motor, the servo motor is fixedly installed at the top of a supporting plate, an installation cover is fixedly installed at the top of the drying cylinder, a sealing gasket is arranged between the installation cover and the top of the drying cylinder, a protective shell is arranged at the top of the installation cover, a second motor is fixedly installed inside the protective shell and positioned in the middle of the top of the installation cover, an output shaft of the second motor penetrates through the installation cover and is fixedly connected with a third rotating shaft, a spiral stirring sheet is fixedly connected with an outer shaft surface of the third rotating shaft, an air inlet channel is formed in the side wall of the, a plurality of air inlets are communicated with the air inlet channel and the interior of the drying cylinder, one side of the upper end of the drying cylinder is provided with a third mounting groove, an air heater is fixedly mounted in the third mounting groove, the air outlet of the air heater is communicated with the air inlet channel, the bottom of the air inlet channel is fixedly provided with a first screen, the interior of the side wall of the drying cylinder, which is close to one side of the servo motor, is provided with an air outlet channel, the inner side surface of the air outlet channel is provided with a plurality of air outlets, the air outlets are communicated with the air outlet channel and the interior of the drying cylinder, the other side of the upper end of the drying cylinder is provided with an air outlet main hole, the air outlet main hole is communicated with the air outlet channel and the outside, the bottom of the air outlet channel is fixedly provided with, and the middle part of the feeding funnel is provided with a second electromagnetic valve, and the feeding funnel is positioned right below the corresponding discharging pipe.
The invention has the beneficial effects that:
1. through the nanometer graphite alkene that increases the preliminary treatment in the raw materials, the colouring carrier of modified masterbatch is done to nanometer graphite alkene, because its special lamellar structure, the hexagon is the two-dimensional carbon nanomaterial of honeycomb lattice, be one of the material that known intensity is the highest, it is high to compare traditional carbon black has the wearability, compressive property etc., make the wear-resisting graphite alkene master batch of being applied to PE tubular product of preparation, very high wearability and compressive resistance have, nanometer graphite alkene is because its special lamellar structure simultaneously, the hexagon is the honeycomb lattice, the tinctorial ability is further, the wear-resisting graphite alkene master batch of preparation, the quantity is still less, pigment concentration is higher, the utilization ratio is higher, and it is even to color, whole colour difference is little.
2. The invention can dry a large amount of wear-resistant graphene master batch base materials by arranging four groups of drying mechanisms, improves the overall drying speed, drives a third rotating shaft and a spiral stirring sheet to stir by arranging a second motor, simultaneously is provided with a servo motor to drive the drying mechanism to perform reciprocating forward and backward rotation integrally, regularly overturns by manually setting time, and finally is also provided with a first motor which drives the first rotating shaft, the mounting mechanism and the drying mechanism to do circular motion around the first rotating shaft, and the first semicircular lug and the second semicircular lug move relatively to enable the mounting mechanism and the drying mechanism to vibrate so as to vibrate the wear-resistant graphene master batches in the drying cylinder, and the wear-resistant graphene master batches in the drying cylinder continuously move in the drying cylinder by four-fold movement arrangement, the hot air is more convenient to blow in, the integral drying speed is improved, the time of the whole preparation process is shortened, and the efficiency is improved.
3. According to the invention, the air inlet is arranged at the bottom, so that hot air can be blown upwards from the bottom, the floating speed of the hot air is increased, the drying speed is further increased, and the first screen and the second screen are arranged at the same time, so that color master batches are prevented from falling into the air inlet and the air outlet to cause blockage; through both ends set up the spring about the connecting rod for installation mechanism can alleviate the impact force at the vibration in-process, avoids equipment to damage.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic sectional view of the drying apparatus according to the present invention;
FIG. 2 is an enlarged schematic view of the area A in FIG. 1;
FIG. 3 is an enlarged schematic view of the area B in FIG. 1;
FIG. 4 is a schematic cross-sectional view of the installation mechanism of the drying apparatus according to the present invention;
FIG. 5 is a schematic sectional view of a drying mechanism of the drying apparatus of the present invention.
In the figure: 1. a drying table; 2. a discharging mechanism; 3. an installation mechanism; 4. a drying mechanism; 6. a spring; 7. a servo motor; 11. a first mounting groove; 12. a first semicircular bump; 21. a first motor; 22. a first rotating shaft; 221. mounting a boss; 222. a second mounting groove; 223. a bearing platform; 23. a discharge table; 231. a discharge cavity; 24. discharging the material pipe; 31. a connecting rod; 32. a support plate; 33. a U-shaped seat; 331. mounting holes; 34. a second semicircular bump; 41. a drying cylinder; 42. a second rotating shaft; 43. installing a cover; 431. a gasket; 44. a protective shell; 45. a feed hopper; 46. a hot air blower; 47. an air inlet channel; 471. an air inlet; 472. a first screen; 48. a main air outlet hole; 481. an air outlet channel; 482. an air outlet; 483. a second screen; 49. a discharge pipe; 51. a second motor; 52. a third rotating shaft; 53. a spiral stirring sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1 to 5, the wear-resistant graphene master batch applied to the PE pipe is prepared from the following raw materials in parts by weight: 45 parts of resin, 10 parts of pretreated nano graphene, 3 parts of lubricant, 4 parts of processing aid, 1 part of antioxidant and 1.5 parts of light stabilizer;
the pretreated nano graphene is obtained by carrying out surface treatment on the nano graphene in an atomization spraying mode by using a surface synergist and a hyperdispersant and then drying.
The hyperdispersant comprises a polyolefin hyperdispersant and a graft copolymer hyperdispersant.
The pretreated nano graphene comprises the following raw materials in parts by weight: 20 parts of nano graphene, 3 parts of polyolefin hyper-dispersant, 3 parts of graft copolymer hyper-dispersant and 2 parts of surface synergist;
the surface synergist is titanate.
The lubricant is polyolefin oligomer, the processing aid is polyethylene graft, the antioxidant is hindered phenol antioxidant, and the light stabilizer is benzotriazole ultraviolet absorbent.
Example 2
Referring to fig. 1 to 5, the wear-resistant graphene master batch applied to the PE pipe is prepared from the following raw materials in parts by weight: 45 parts of resin, 12 parts of pretreated nano graphene, 3 parts of lubricant, 4 parts of processing aid, 1 part of antioxidant and 1.5 parts of light stabilizer;
example 3
Referring to fig. 1 to 5, the wear-resistant graphene master batch applied to the PE pipe is prepared from the following raw materials in parts by weight: 45 parts of resin, 15 parts of pretreated nano graphene, 3 parts of lubricant, 4 parts of processing aid, 1 part of antioxidant and 1.5 parts of light stabilizer;
comparative example
Weighing the following raw materials in parts by weight: 45 parts of resin, 3 parts of lubricant, 4 parts of processing aid, 1 part of antioxidant and 1.5 parts of light stabilizer, and mixing, banburying, extruding, granulating and drying to obtain reinforced master batch;
the color master batches prepared in the embodiment and the comparative example are added into a PE pipe basic formula in equal quantity for extrusion molding, the obtained sheet is subjected to mechanical property detection according to the detection standards of national standards GB11548-89/GB1039-79 and GB9341-88/GB9342-88, and the detection results are shown in the following table:
a preparation method of wear-resistant graphene master batch applied to a PE pipe comprises the following steps:
step one, mixing materials: weighing resin, pretreated nano graphene, a lubricant, a processing aid, an antioxidant and a light stabilizer according to the parts by weight, putting the weighed resin, pretreated nano graphene, lubricant, processing aid, antioxidant and light stabilizer into a mixer, and uniformly stirring the mixture at 150 r/min to obtain a mixture A;
step two, banburying: adding the mixture A into an internal mixer, and processing and internally mixing to obtain a mixture B, wherein the internally mixing temperature is 160 ℃;
step three, extruding and granulating: feeding the mixture B into a double-screw extruder, and extruding and granulating to obtain a wear-resistant graphene master batch base material, wherein the screw rotating speed is 350r/min, and the granulating temperature is 190 ℃;
pouring the wear-resistant graphene master batch base material into a discharging cavity 231 of the drying device, opening a first valve and a second electromagnetic valve, introducing the wear-resistant graphene master batch base material into the drying cylinder 41, closing the second electromagnetic valve, starting a second motor 51 to drive a third rotating shaft 52 to rotate, driving a spiral stirring sheet 53 to rotate by the third rotating shaft 52, stirring the wear-resistant graphene master batch base material in the drying cylinder 41, simultaneously starting a hot air blower 46, drying the wear-resistant graphene master batch base material in the drying cylinder 41 through an air inlet 471, discharging dried moisture from an air outlet main hole 48, starting the hot air blower 46, simultaneously starting a servo motor 7, driving a drying mechanism 4 to rotate in a forward direction, simultaneously starting a first motor 21 to drive a first rotating shaft 22 to rotate, driving the mounting mechanism 3 and the drying mechanism 4 to rotate around a vertical central axis of the first rotating shaft 22 by the first rotating shaft 22, through first semicircle lug 12 and the 34 relative motion of second semicircle lug, vibrate the wear-resisting graphite alkene master batch base stock of drying tube 41 inside, after the drying, open solenoid valve one, through arranging material pipe 49, discharge wear-resisting graphite alkene master batch.
Drying device in step four includes drying bench 1, drop feed mechanism 2, installation mechanism 3, drying mechanism 4, be provided with drop feed mechanism 2 in the middle of the 1 top of drying bench, drop feed mechanism 2 bottom just is located 1 top of drying bench and is provided with four installation mechanism 3, four installation mechanism 3 is around angular distribution such as drop feed mechanism 2, 3 internally mounted of installation mechanism has drying mechanism 4.
The middle of the top of the drying table 1 is provided with a first mounting groove 11, the top surface of the drying table 1 is provided with a plurality of first semicircular convex blocks 12, the discharging mechanism 2 comprises a first motor 21, a first rotating shaft 22, a mounting boss 221, a second mounting groove 222, a bearing platform 223, a discharging table 23, a discharging cavity 231 and a discharging pipe 24, the first motor 21 is fixedly mounted inside the first mounting groove 11, an output shaft of the first motor 21 is fixedly connected with the first rotating shaft 22, the bottom end of the first rotating shaft 22 is rotatably mounted in the first mounting groove 11, the bottom of the first rotating shaft 22 is provided with the mounting boss 221, the bottom surface of the mounting boss 221 is abutted against the top surface of the drying table 1 to increase the stability of the first rotating shaft 22, the middle axial surface of the first rotating shaft 22 is provided with four second mounting grooves 222, and the four second mounting grooves 222 are distributed around the vertical equal angle of the first rotating shaft 22, the top of the first rotating shaft 22 is provided with a bearing platform 223, the top of the bearing platform 223 is fixedly provided with a discharging platform 23, a discharging cavity 231 is formed in the discharging platform 23, four discharging pipes 24 are fixedly arranged at the bottom of the discharging cavity 231, the four discharging pipes 24 are distributed around the center of the discharging platform 23 at equal angles, and a first valve is arranged on each discharging pipe 24.
The drying mechanism 4 comprises a drying cylinder 41, a second rotating shaft 42 is symmetrically arranged in the middle of the outer portion of the drying cylinder 41, the drying cylinder 41 is rotatably installed in the installation hole 331 through the second rotating shaft 42, the second rotating shaft 42 is fixedly connected with a servo motor 7 on the inner side, the servo motor 7 is fixedly installed at the top of the support plate 32, an installation cover 43 is fixedly installed at the top of the drying cylinder 41, a sealing gasket 431 is arranged between the installation cover 43 and the top of the drying cylinder 41, hot air is prevented from diffusing through gaps, drying unevenness is avoided, a protection shell 44 is arranged at the top of the installation cover 43, a second motor 51 is fixedly installed inside the protection shell 44 and positioned in the middle of the top of the installation cover 43, an output shaft of the second motor 51 penetrates through the installation cover 43 and is fixedly connected with a third rotating shaft 52, and a spiral stirring sheet 53 is, an air inlet channel 47 is formed in the side wall of the drying cylinder 41 far away from the servo motor 7, a plurality of air inlets 471 are formed in the inner side surface of the air inlet channel 47, the air inlets 471 are communicated with the air inlet channel 47 and the inside of the drying cylinder 41, the aperture of the air inlets 471 is smaller than the size of the master batch, a third mounting groove is formed in one side of the upper end of the drying cylinder 41, an air heater 46 is fixedly mounted in the third mounting groove, the air outlet of the air heater 46 is communicated with the air inlet channel 47, a first screen 472 is fixedly mounted at the bottom end of the air inlet channel 47 to avoid blockage, an air outlet channel 481 is formed in the side wall of the drying cylinder 41 near the servo motor 7, a plurality of air outlets 482 are formed in the inner side surface of the air outlet channel 481, the plurality of air outlets 482, the main hole 48 of giving vent to anger has been seted up to drying cylinder 41 upper end opposite side, give vent to anger main hole 48 intercommunication air outlet channel 481 and external world, air outlet channel 481 bottom fixed mounting has second screen 483, avoids blockking up, causes the unable discharge of moisture, drying cylinder 41 bottom center fixed mounting has row material pipe 49, it is provided with solenoid valve one to arrange material pipe 49 top, installation lid 43 and protective housing 44 cooperation fixed mounting have feed hopper 45, feed hopper 45 middle part is provided with solenoid valve two, feed hopper 45 is located corresponding blow off pipe 24 under, air heater 46 is HLJT-3380-5A.
The working principle of the drying device of the invention is as follows: pouring the wear-resistant graphene master batch base material into the discharging cavity 231, opening the first valve and the second electromagnetic valve, guiding the wear-resistant graphene master batch base material into the drying cylinder 41, closing the second electromagnetic valve, starting the second motor 51, driving the third rotating shaft 52 to rotate, driving the spiral stirring sheet 53 to rotate by the third rotating shaft 52, stirring the wear-resistant graphene master batch base material in the drying cylinder 41, improving the drying efficiency, simultaneously starting the hot air blower 46, drying the wear-resistant graphene master batch base material in the drying cylinder 41 through the air inlet 471, setting the air inlet 471 at the bottom, further drying from the bottom, improving the drying effect, discharging the dried moisture from the air outlet main hole 48, starting the hot air blower 46, starting the servo motor 7, driving the drying mechanism 4 to rotate in a positive and reverse rotation manner at regular time, starting the first motor 21, driving the first rotating shaft 22 to rotate, and driving the mounting mechanism 3 and the drying mechanism 4 to rotate around the vertical rotation axis of the first rotating shaft 22 Move, through first semicircle lug 12 and the 34 relative motion of second semicircle lug for installation mechanism 3 and drying mechanism 4 open and make the vibration, vibrate the wear-resisting graphite alkene master batch base material of drying cylinder 41 inside, make hot-blast blowing in more convenient, increase drying rate, after the drying, open solenoid valve one, through arranging material pipe 49, discharge wear-resisting graphite alkene master batch.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is illustrative and explanatory only and is not intended to be exhaustive or to limit the invention to the precise embodiments described, and various modifications, additions, and substitutions may be made by those skilled in the art without departing from the scope of the invention or exceeding the scope of the claims.
Claims (10)
1. The wear-resistant graphene master batch is characterized by being prepared from the following raw materials in parts by weight: 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer;
the wear-resistant graphene master batch applied to the PE pipe is prepared by the following steps:
step one, mixing materials: weighing 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer according to parts by weight, putting into a mixer, and uniformly stirring at 100-200r/min to obtain a mixture A;
step two, banburying: adding the mixture A into an internal mixer, and processing and internally mixing to obtain a mixture B, wherein the internal mixing temperature is 140-165 ℃;
step three, extruding and granulating: feeding the mixture B into a double-screw extruder, and extruding and granulating to obtain a wear-resistant graphene master batch base material, wherein the screw rotating speed is 300-400r/min, and the granulating temperature is 180-195 ℃;
pouring the wear-resistant graphene master batch base material into a discharging cavity (231) of the drying device, opening a first valve and a second electromagnetic valve, guiding the wear-resistant graphene master batch base material into a drying cylinder (41), closing the second electromagnetic valve, starting a second motor (51) to drive a third rotating shaft (52) to rotate, driving a spiral stirring sheet (53) to rotate by the third rotating shaft (52), stirring the wear-resistant graphene master batch base material in the drying cylinder (41), simultaneously starting a hot air blower (46), drying the wear-resistant graphene master batch base material in the drying cylinder (41) through an air inlet (471), discharging dried moisture from an air outlet main hole (48), starting the hot air blower (46), starting a servo motor (7), driving a drying mechanism (4) to rotate in a positive and reverse direction, simultaneously starting a first motor (21) to drive a first rotating shaft (22) to rotate, first axis of rotation (22) drive installation mechanism (3) and drying mechanism (4) rotate around the vertical axis of first axis of rotation (22), through first semicircle lug (12) and second semicircle lug (34) relative motion, vibrate the wear-resisting graphite alkene master batch base stock of drying tube (41) inside, after the drying, open solenoid valve one, through arranging material pipe (49), discharge wear-resisting graphite alkene master batch.
2. The wear-resistant graphene master batch applied to the PE pipe according to claim 1, wherein the pretreated nano graphene is obtained by performing surface treatment on the nano graphene in an atomization spraying manner by using a surface synergist and a hyperdispersant and drying.
3. The wear-resistant graphene master batch applied to the PE pipe material, according to claim 2, wherein the hyperdispersant comprises a polyolefin hyperdispersant and a graft copolymer hyperdispersant.
4. The wear-resistant graphene master batch applied to the PE pipe material as claimed in claim 2, wherein the pretreated nano graphene raw material comprises the following components in parts by weight: 10-20 parts of nano graphene, 2-5 parts of polyolefin hyperdispersant, 2-5 parts of graft copolymer hyperdispersant and 1-2 parts of surface synergist;
the surface synergist is titanate.
5. The wear-resistant graphene master batch applied to the PE pipe material as claimed in claim 1, wherein the lubricant is a polyolefin oligomer, the processing aid is a polyethylene graft, the antioxidant is a hindered phenol antioxidant, and the light stabilizer is a benzotriazole ultraviolet absorber.
6. A preparation method of wear-resistant graphene master batch applied to a PE pipe is characterized by comprising the following steps:
step one, mixing materials: weighing 40-50 parts of resin, 10-15 parts of pretreated nano graphene, 2-4 parts of lubricant, 3-5 parts of processing aid, 0.5-1.5 parts of antioxidant and 1-2 parts of light stabilizer according to parts by weight, putting into a mixer, and uniformly stirring at 100-200r/min to obtain a mixture A;
step two, banburying: adding the mixture A into an internal mixer, and processing and internally mixing to obtain a mixture B, wherein the internal mixing temperature is 140-165 ℃;
step three, extruding and granulating: feeding the mixture B into a double-screw extruder, and extruding and granulating to obtain a wear-resistant graphene master batch base material, wherein the screw rotating speed is 300-400r/min, and the granulating temperature is 180-195 ℃;
pouring the wear-resistant graphene master batch base material into a discharging cavity (231) of the drying device, opening a first valve and a second electromagnetic valve, guiding the wear-resistant graphene master batch base material into a drying cylinder (41), closing the second electromagnetic valve, starting a second motor (51) to drive a third rotating shaft (52) to rotate, driving a spiral stirring sheet (53) to rotate by the third rotating shaft (52), stirring the wear-resistant graphene master batch base material in the drying cylinder (41), simultaneously starting a hot air blower (46), drying the wear-resistant graphene master batch base material in the drying cylinder (41) through an air inlet (471), discharging dried moisture from an air outlet main hole (48), starting the hot air blower (46), starting a servo motor (7), driving a drying mechanism (4) to rotate in a positive and reverse direction, simultaneously starting a first motor (21) to drive a first rotating shaft (22) to rotate, first axis of rotation (22) drive installation mechanism (3) and drying mechanism (4) rotate around the vertical axis of first axis of rotation (22), through first semicircle lug (12) and second semicircle lug (34) relative motion, vibrate the wear-resisting graphite alkene master batch base stock of drying tube (41) inside, after the drying, open solenoid valve one, through arranging material pipe (49), discharge wear-resisting graphite alkene master batch.
7. The preparation method of the wear-resistant graphene master batch applied to the PE pipe, according to claim 6, characterized in that the drying device in the fourth step comprises a drying table (1), a material discharging mechanism (2), an installing mechanism (3) and a drying mechanism (4), wherein the material discharging mechanism (2) is arranged in the middle of the top of the drying table (1), four installing mechanisms (3) are arranged at the bottom of the material discharging mechanism (2) and at the top of the drying table (1), the four installing mechanisms (3) are distributed around the material discharging mechanism (2) at equal angles, and the drying mechanism (4) is installed inside the installing mechanism (3).
8. The preparation method of the wear-resistant graphene master batch applied to the PE pipe, according to claim 7, wherein a first installation groove (11) is formed in the middle of the top of the drying table (1), a plurality of first semicircular convex blocks (12) are arranged on the top surface of the drying table (1), the discharging mechanism (2) comprises a first motor (21), a first rotating shaft (22), an installation boss (221), a second installation groove (222), a bearing table (223), a discharging table (23), a discharging cavity (231) and a discharging pipe (24), the first motor (21) is fixedly installed inside the first installation groove (11), an output shaft of the first motor (21) is fixedly connected with the first rotating shaft (22), the bottom end of the first rotating shaft (22) is rotatably installed in the first installation groove (11), the installation boss (221) is arranged at the bottom of the first rotating shaft (22), the bottom surface of installation boss (221) offsets with the top surface of drying bench (1), four second mounting grooves (222), four have been seted up on first axis of rotation (22) middle part axostylus axostyle, first axis of rotation (22) top is provided with cushion cap (223), cushion cap (223) top fixed mounting has blowing platform (23), blowing chamber (231) have been seted up to blowing platform (23) inside, blowing chamber (231) bottom fixed mounting has four blowing pipes (24), four blowing pipe (24) are around blowing platform (23) central equiangular distribution, be provided with valve one on blowing pipe (24).
9. The preparation method of the wear-resistant graphene master batch applied to the PE pipe, according to claim 7, wherein the mounting mechanism (3) comprises a connecting rod (31), a supporting plate (32), a U-shaped seat (33), mounting holes (331) and second semicircular bumps (34), the connecting rod (31) is slidably mounted in the corresponding second mounting grooves (222), two springs (6) are arranged between the connecting rod (31) and the second mounting grooves (222), the two springs (6) are symmetrically arranged about the connecting rod (31), the U-shaped seat (33) is fixedly connected to the other end of the connecting rod (31), the second semicircular bumps (34) are arranged at the bottom of the U-shaped seat (33), the U-shaped seat (33) is arranged at the top of the drying table (1), the mounting holes (331) are symmetrically arranged at two sides of the top of the U-shaped seat (33), and a supporting plate (32) is arranged on one side, close to the connecting rod (31), of the top end of the U-shaped seat (33).
10. The preparation method of the wear-resistant graphene master batch applied to the PE pipe material, according to claim 7, wherein the drying mechanism (4) comprises a drying cylinder (41), a second rotating shaft (42) is symmetrically arranged in the middle of the outer portion of the drying cylinder (41), the drying cylinder (41) is rotatably installed in the installation hole (331) through the second rotating shaft (42), the second rotating shaft (42) is fixedly connected with a servo motor (7) on the inner side, the servo motor (7) is fixedly installed on the top of the support plate (32), an installation cover (43) is fixedly installed on the top of the drying cylinder (41), a sealing gasket (431) is arranged between the installation cover (43) and the top of the drying cylinder (41), a protection shell (44) is arranged on the top of the installation cover (43), a second motor (51) is fixedly installed inside the protection shell (44) and in the middle of the top of the installation cover (43), the output shaft of the second motor (51) penetrates through the mounting cover (43) and is fixedly connected with a third rotating shaft (52), the outer shaft surface of the third rotating shaft (52) is fixedly connected with a spiral stirring sheet (53), an air inlet channel (47) is formed in the side wall of one side, away from the servo motor (7), of the drying cylinder (41), a plurality of air inlets (471) are formed in the inner side surface of the air inlet channel (47), the air inlets (471) are communicated with the air inlet channel (47) and the inside of the drying cylinder (41), a third mounting groove is formed in one side of the upper end of the drying cylinder (41), an air heater (46) is fixedly mounted in the third mounting groove, the air outlet of the air heater (46) is communicated with the air inlet channel (47), a first screen mesh (472) is fixedly mounted at the bottom end of the air inlet channel (47), and an air outlet channel (481) is formed in the, a plurality of gas outlet (482), a plurality of gas outlet (482) have been seted up to air outlet channel (481) medial surface gas outlet (482) intercommunication air outlet channel (481) and drying section of thick bamboo (41) are inside, main hole (48) of giving vent to anger has been seted up to drying section of thick bamboo (41) upper end opposite side, main hole (48) of giving vent to anger communicate air outlet channel (481) and external, air outlet channel (481) bottom fixed mounting has second screen cloth (483), drying section of thick bamboo (41) bottom center fixed mounting has row material pipe (49), it is provided with solenoid valve one to arrange material pipe (49) top, installation lid (43) and protective housing (44) cooperation fixed mounting have feed hopper (45), feed hopper (45) middle part is provided with solenoid valve two, feed hopper (45) are located corresponding under discharging pipe (24).
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