CN112266516A - Buried organic rigid reinforced and toughened alloy pipe and preparation method thereof - Google Patents
Buried organic rigid reinforced and toughened alloy pipe and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/06—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form
- B26D7/0625—Arrangements for feeding or delivering work of other than sheet, web, or filamentary form by endless conveyors, e.g. belts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
- B29C48/023—Extruding materials comprising incompatible ingredients
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
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- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
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Abstract
The invention discloses an organic rigidity-enhanced toughening alloy pipe for burying and a preparation method thereof, wherein nano zinc oxide whiskers, a vinyl silane coupling agent and graphene are combined into a whole, the vinyl silane coupling agent and the nano zinc oxide whiskers are uniformly dispersed on the surface of the graphene and between sheets, the surface performance of the graphene is improved, the dispersion of the nano zinc oxide whiskers and the graphene is effectively promoted, the nano zinc oxide whiskers and the graphene are prevented from agglomerating, the compatibility between systems is improved, the mechanical property, the toughness and the rigidity of the alloy pipe are improved, the carbon forming amount of the alloy pipe is improved, the thermal stability of the alloy pipe is improved, and the notch impact strength of the organic rigidity-enhanced toughening alloy pipe for burying is 6.3-6.6KJ/m measured according to GB/T1843 and 2008.
Description
Technical Field
The invention relates to the technical field of alloy pipe preparation, in particular to an organic rigid reinforced and toughened alloy pipe for burying and a preparation method thereof.
Background
The existing alloy pipe has low modulus, low impact strength and poor overall performance. Meanwhile, the alloy pipe needs to be cut in the preparation process, the temperature of the cutting position of the alloy pipe can be at a high temperature for a long time in the common cutting process, operators are easily scalded, and meanwhile, scraps generated at the cutting position are easily attached to the alloy pipe and are not beneficial to cleaning.
Disclosure of Invention
The invention aims to provide an organic rigid reinforced and toughened alloy pipe for burying and a preparation method thereof, and solves the following technical problems: (1) the nano zinc oxide whiskers, the vinyl silane coupling agent and the graphene are combined into a whole, the vinyl silane coupling agent and the nano zinc oxide whiskers are uniformly dispersed on the surface of the graphene and among sheets, the surface performance of the graphene is improved, the dispersion of the nano zinc oxide whiskers and the graphene is effectively promoted, the nano zinc oxide whiskers and the graphene are prevented from agglomerating, the nano zinc oxide whiskers and the graphene act with high-density polyethylene resin, the compatibility among systems is improved, the mechanical property, toughness and rigidity of an alloy pipe are improved, the carbon forming amount of the alloy pipe is improved, the thermal stability of the alloy pipe is improved, and the notch impact strength of the organic rigid reinforced toughened alloy pipe for burying is 6.3-6.6KJ/m measured according to GB/T1843 and 20082(ii) a (2) The cutting equipment can meet the requirement of conveying alloy pipes with different pipe diameters, does not contact the outer wall of the alloy pipe during conveying, and cannot damage the outer wall of the alloy pipe during conveying; (3) this cutting equipment carries out rapid cooling to alloy pipe cutting position through twice cooling after to the alloy pipe cutting, and it is effectual to cool down, and make full use of cooling water cools off the alloy pipe, retrieves the cooling water after the cooling, the recycle of the cooling water of being convenient for.
The purpose of the invention can be realized by the following technical scheme:
the buried organic rigid reinforced and toughened alloy pipe is prepared from the following raw materials in parts by weight: 100-120 parts of high-density polyethylene, 10-20 parts of linear low-density polyethylene, 10-20 parts of chlorinated polyethylene, 8-12 parts of modified graphene, 6-12 parts of compatibilizer, 1-3 parts of lubricant, 3-9 parts of flame retardant, 0.5-1.5 parts of antioxidant, 1-3 parts of coupling agent, 1-5 parts of nano calcium carbonate, 1-3 parts of processing aid and 4-6 parts of initiator;
the buried organic rigid reinforced and toughened alloy pipe is prepared by the following steps:
the method comprises the following steps: adding low-density polyethylene, chlorinated polyethylene, an antioxidant and a coupling agent with the total amount of 1/2 into a high-speed mixer, uniformly mixing the raw materials in the high-speed mixer, plasticizing, adding an initiator, and uniformly mixing to obtain a mixture A;
step two: putting high-density polyethylene, modified graphene, a compatibilizer, a lubricant, a flame retardant, an antioxidant, a coupling agent with the total amount of 1/2, nano calcium carbonate and a processing aid into a high-speed stirrer, stirring for 30-40min, adding the mixture A obtained in the step one, continuously stirring for 10-20min, and fully and uniformly mixing to obtain a mixture B;
step three: pouring the mixture B into a double-screw extruder, heating, pressurizing and plasticizing to a molten state, extruding a sectional material, cooling the sectional material to 40-90 ℃, simultaneously drawing the sectional material in a two-way mode in a winding direction and a forward direction to obtain an organic rigid reinforced toughened alloy pipe for burying, placing the organic rigid reinforced toughened alloy pipe for burying on a conveying mechanism of cutting equipment, respectively pushing three corresponding guide blocks by guide cylinders on three side fixing strips, driving two second rotating arms to rotate by the guide blocks, driving a belt conveying shell to move by the two second rotating arms matching with the four first rotating arms, contacting three corresponding conveying belts on the three belt conveying shells with the inner wall of the organic rigid reinforced toughened alloy pipe for burying, simultaneously rotating output shafts of three conveying motors, driving one belt pulley to rotate by the output shafts of the conveying motors, and driving the conveying belts to rotate by the two belt pulleys, the three conveying belts convey the buried organic rigid reinforced toughened alloy pipe, one end of the buried organic rigid reinforced toughened alloy pipe is conveyed to the arc seat by the conveying mechanism, the cutting cylinder is started, the piston rod of the cutting cylinder pushes the cutting shell downwards, the cutting shell drives the cutting blade to descend, the cutting motor is started, the output shaft of the cutting motor drives the cutting blade to rotate, the cutting blade cuts the buried organic rigid reinforced toughened alloy pipe, the lifting cylinder is started, the piston rod of the lifting cylinder pushes the arc seat upwards, the arc seat passes through the lifting port to rise to one side of the push pipe seat, the push pipe cylinder is started, the piston rod of the push pipe cylinder pushes the push pipe seat, the push pipe seat pushes the buried organic rigid reinforced toughened alloy pipe on the arc seat into the cooling pipe, the water in the cooling water tank is extracted by the water suction pump, and the cooling water is conveyed into the spiral pipe by the connecting pipe, the spiral pipe cools the cooling pipe, the cooling pipe cools the cutting position of the buried organic rigid reinforced and toughened alloy pipe inside the cooling pipe, the buried organic rigid reinforced and toughened alloy pipe is pushed out of the cooling pipe by the pipe pushing seat after cooling, the buried organic rigid reinforced and toughened alloy pipe falls onto the water filtering plate in the header box, cooling water in the spiral pipe is conveyed out through the drain pipe, the cooling water cools the buried organic rigid reinforced and toughened alloy pipe on the water filtering plate, then the cooling water flows to the bottom of the header box through the water filtering plate, and the cut buried organic rigid reinforced and toughened alloy pipe can be taken out from the header box.
Further, the preparation method of the modified graphene comprises the following steps: firstly, preprocessing 10-20 parts of nano zinc oxide whiskers: drying in a drying oven at 110 + -10 deg.C for 2-3h, and cooling to below 60 deg.C; secondly, dissolving 3-5 parts of vinyl silane coupling agent in 40-60 parts of absolute ethyl alcohol, adding the pretreated and cooled nano zinc oxide whisker for ultrasonic dispersion, heating to 70-80 ℃, uniformly stirring and filtering to obtain modified nano zinc oxide whisker for later use; adding 20-30 parts of polymethacrylic acid into 60-80 parts of ethylene glycol ethyl ether to prepare a solution A, stirring with a stirrer for 2-3h, sequentially adding the modified nano zinc oxide whisker and 20-30 parts of graphene powder into the solution A, performing ultrasonic treatment for 30-40min, adding 3-5 parts of cellulose acetate butyrate, 2-4 parts of sodium dodecyl benzene sulfonate and 3-5 parts of N-methyldiethanolamine, and continuously stirring for 4-6h to obtain the modified graphene.
Further, the compatibilizer is maleic anhydride grafted polyethylene.
Further, the lubricant is one or two of oxidized polyethylene wax or ethylene bis-oleic acid amide EBO.
Further, the flame retardant is brucite powder or sepiolite.
Further, the antioxidant is American Yabao antioxidant PW-9215.
Further, the coupling agent is at least one of an aluminate coupling agent DH-306 and a silane coupling agent KH-560.
Further, the processing aid is dioctyl phthalate DOP or plastic brightener PE wax; the initiator is tert-butyl peroxypivalate or cobalt stearate.
Further, the cutting equipment comprises a processing chamber, a conveying mechanism is arranged in the processing chamber, the conveying mechanism comprises a guide pipe, three side fixing strips are arranged on the peripheral surface of the guide pipe, radian such as the three side fixing strips are arranged on the peripheral surface of the guide pipe, four first rotating arms are rotatably arranged on the side fixing strips, a guide block is slidably arranged on the side fixing strips, two second rotating arms are rotatably arranged on the guide block, the four first rotating arms and the two second rotating arms are rotatably connected with the belt conveying shell, a guide cylinder is arranged on the side fixing strips, a piston rod of the guide cylinder is connected with the guide block, two belt pulleys are rotatably arranged in the belt conveying shell, the two belt pulleys are respectively rotatably arranged on two sides of the belt conveying shell and are connected through a conveying belt in a transmission manner, a conveying motor is arranged on the belt conveying shell, and an output shaft of the conveying motor is connected with one, the cutting mechanism comprises a cutting cylinder, a cutting shell is mounted at the end part of a piston rod of the cutting cylinder, a cutting blade is arranged in the cutting shell in a rotating mode, a cutting motor is mounted on the outer wall of the cutting shell, the cutting motor outputs the cutting blade, a lifting mechanism is mounted at the bottom of an inner cavity of the processing chamber, the lifting mechanism comprises a lifting cylinder, an arc-shaped seat is mounted at the end part of the piston rod of the lifting cylinder, a lifting port is formed in the top of the processing chamber, the lifting port is arranged right above the lifting mechanism, a water suction pump is mounted at the bottom of the inner cavity of the processing chamber, a cooling water tank is arranged between the water suction pump and the lifting mechanism, the water suction end of the water suction pump is communicated with the cooling water tank through a water pipe, and a connecting pipe is, two fixing bases are installed at the machining room top, install the cooling tube between two fixing bases, cooling tube periphery is around being equipped with the spiral pipe, spiral pipe one end is linked together with the connecting pipe, the drainage pipe is connected to the spiral pipe other end, machining room one side is provided with the header tank, the spiral pipe intercommunication header tank lateral wall is kept away from to the drain pipe, the header tank inner chamber is provided with the drainage board, the drainage board is the slope form and installs in header tank inner chamber, machining room top horizontal installation has the ejector sleeve cylinder, and ejector sleeve cylinder piston rod end portion installs the ejector sleeve seat.
The invention has the beneficial effects that:
(1) according to the buried organic rigid reinforced and toughened alloy pipe and the preparation method thereof, the nano zinc oxide whiskers have an ultra-large length-diameter ratio, so that PE molecules and the PE molecules can form a space network structure, and the strength of the pipe is improved; meanwhile, the nano crystal whisker is easier to be combined with more PE molecules, the formed network structure is more compact, the strength of the pipe can be obviously improved, the original performance is not influenced, other performances of the pipe are ensured to meet the first-closing standard requirement of the PE pipe, the vinyl silane coupling agent is utilized to modify the nano zinc oxide crystal whisker, then the modified nano zinc oxide crystal whisker is utilized to modify the graphene, the nano zinc oxide crystal whisker, the vinyl silane coupling agent and the graphene are combined into a whole, the vinyl silane coupling agent and the nano zinc oxide crystal whisker are uniformly dispersed on the surface and between sheets of the graphene, the surface performance of the graphene is improved, the dispersion of the nano zinc oxide crystal whisker and the graphene is effectively promoted, the agglomeration of the nano zinc oxide crystal whisker and the graphene is prevented, the high-density polyethylene resin function is realized, the compatibility between systems is improved, the mechanical property, the toughness and the rigidity of the alloy pipe are improved, and the carbon forming amount of the alloy pipe is, the thermal stability of the alloy pipe is improved, and the notch impact strength of the organic rigid reinforced and toughened alloy pipe for burying is 6.3-6.6KJ/m measured according to GB/T1843-20082；
(2) The buried organic rigid reinforced toughened alloy pipe is placed on a conveying mechanism of cutting equipment, guide cylinders on three side fixing strips respectively push three corresponding guide blocks, the guide blocks drive two second rotating arms to rotate, the two second rotating arms are matched with four first rotating arms to drive a belt conveying shell to move, corresponding three conveying belts on the three belt conveying shells are in contact with the inner wall of the buried organic rigid reinforced toughened alloy pipe, three conveying motor output shafts simultaneously rotate, the conveying motor output shaft drives one belt pulley to rotate, two belt pulleys drive the conveying belts to rotate, the three conveying belts convey the buried organic rigid reinforced toughened alloy pipe, one end of the buried organic rigid reinforced toughened alloy pipe is conveyed to an arc seat by the conveying mechanism, and through the structural arrangement, the cutting equipment can meet the conveying of alloy pipes with different pipe diameters, meanwhile, the alloy pipe is not contacted with the outer wall of the alloy pipe during conveying, so that the outer wall of the alloy pipe cannot be damaged during conveying;
(3) by opening the cutting cylinder, a piston rod of the cutting cylinder pushes the cutting shell downwards, the cutting shell drives the cutting blade to descend, the cutting motor is started, an output shaft of the cutting motor drives the cutting blade to rotate, the cutting blade cuts the buried organic rigid reinforced alloy pipe for reinforcing and toughening, the lifting cylinder is started, a piston rod of the lifting cylinder pushes the arc seat upwards, the arc seat passes through the lifting port to rise to one side of the push tube seat, the push tube cylinder is started, a piston rod of the push tube cylinder pushes the push tube seat, the push tube seat pushes the buried organic rigid reinforced and toughened alloy pipe for reinforcing and toughening on the arc seat into the cooling tube, the water suction pump extracts cooling water in the cooling water tank and conveys the cooling water into the spiral tube through the connecting tube, the spiral tube cools the cooling tube, the cooling tube cools the cutting position of the buried organic rigid reinforced and toughened alloy pipe for reinforcing and toughening inside the cooling tube, the buried organic rigid reinforced and toughened alloy pipe for, the cutting equipment has the advantages that the buried organic rigid reinforced toughened alloy pipe falls onto the water filtering plate in the header box, cooling water in the spiral pipe is conveyed out through the drain pipe, the cooling water cools the buried organic rigid reinforced toughened alloy pipe on the water filtering plate, the cooling water flows to the bottom of the header box through the water filtering plate, the cut buried organic rigid reinforced toughened alloy pipe can be taken out from the header box, and through the structure, the cutting equipment can quickly cool the cutting position of the alloy pipe and clear scraps of the cutting position through twice cooling after cutting the alloy pipe, the cooling effect is good, the alloy pipe is cooled by fully utilizing the cooling water, the cooled cooling water is recycled, and the recycling of the cooling water is facilitated.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the construction of the cutting apparatus of the present invention;
FIG. 2 is a schematic view of the construction of the transport mechanism of the present invention;
FIG. 3 is a schematic illustration of the installation of the belt conveyor housing of the present invention;
FIG. 4 is an internal structural view of the belt conveyor housing of the present invention;
FIG. 5 is a schematic view of the construction of the lift mechanism of the present invention;
FIG. 6 is a schematic view of the cutting mechanism of the present invention;
FIG. 7 is an installation view of the cooling tube of the present invention;
fig. 8 is an internal structural view of the header tank of the present invention.
In the figure: 1. a processing chamber; 2. a conveying mechanism; 3. a guide tube; 4. a side fixing strip; 5. a belt conveyor housing; 6. a first rotation arm; 7. a second rotating arm; 8. a guide block; 9. a guide cylinder; 10. a conveyor belt; 11. a belt pulley; 12. a conveying motor; 13. a pipe feeding port; 14. a cutting mechanism; 15. cutting the air cylinder; 16. cutting the shell; 161. cutting the motor; 162. a cutting blade; 17. a lifting mechanism; 18. a lifting cylinder; 19. an arc-shaped seat; 20. a lifting port; 21. a cooling water tank; 22. a water pump; 23. a connecting pipe; 24. a fixed seat; 25. a cooling pipe; 26. a spiral tube; 27. a drain pipe; 28. a header tank; 29. a water filter plate; 30. a pipe pushing cylinder; 31. pushing the tube seat.
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.
Please refer to fig. 1-8
Example 1
The buried organic rigid reinforced and toughened alloy pipe is prepared from the following raw materials in parts by weight: 100 parts of high-density polyethylene, 10 parts of linear low-density polyethylene, 10 parts of chlorinated polyethylene, 8 parts of modified graphene, 6 parts of compatibilizer, 1 part of lubricant, 3 parts of flame retardant, 0.5 part of antioxidant, 1 part of coupling agent, 1 part of nano calcium carbonate, 1 part of processing aid and 4 parts of initiator;
the buried organic rigid reinforced and toughened alloy pipe is prepared by the following steps:
the method comprises the following steps: adding low-density polyethylene, chlorinated polyethylene, an antioxidant and a coupling agent with the total amount of 1/2 into a high-speed mixer, uniformly mixing the raw materials in the high-speed mixer, plasticizing, adding an initiator, and uniformly mixing to obtain a mixture A;
step two: putting high-density polyethylene, modified graphene, a compatibilizer, a lubricant, a flame retardant, an antioxidant, a coupling agent with the total amount of 1/2, nano calcium carbonate and a processing aid into a high-speed stirrer, stirring for 30min, adding the mixture A obtained in the step one, continuously stirring for 10min, and fully and uniformly mixing to obtain a mixture B;
step three: pouring the mixture B into a double-screw extruder, heating, pressurizing and plasticizing to a molten state, extruding a section, when the section is cooled to 40 ℃, simultaneously drawing the section in a two-way mode in a winding direction and a forward direction to obtain an organic rigid reinforced toughened alloy pipe for burying, placing the organic rigid reinforced toughened alloy pipe for burying on a conveying mechanism 2 of cutting equipment, respectively pushing three corresponding guide blocks 8 by guide cylinders 9 on three side fixing strips 4, driving two second rotating arms 7 to rotate by the guide blocks 8, driving a belt conveying shell 5 to move by the two second rotating arms 7 matching with four first rotating arms 6, contacting three corresponding conveying belts 10 on the three belt conveying shells 5 with the inner wall of the organic rigid reinforced toughened alloy pipe for burying, simultaneously rotating output shafts of three conveying motors 12, driving one belt pulley 11 to rotate by the output shafts of the conveying motors 12, driving the conveying belts 10 to rotate by the two belt pulleys 11, the three conveying belts 10 convey the organic rigid reinforced and toughened alloy pipes for burying, one end of the organic rigid reinforced and toughened alloy pipes for burying is conveyed to the arc-shaped seat 19 by the conveying mechanism 2, the cutting cylinder 15 is opened, the piston rod of the cutting cylinder 15 pushes the cutting shell 16 downwards, the cutting shell 16 drives the cutting blade 162 to descend, the cutting motor 161 is opened, the output shaft of the cutting motor 161 drives the cutting blade 162 to rotate, the cutting blade 162 cuts the organic rigid reinforced and toughened alloy pipes for burying, the lifting cylinder 18 is opened, the piston rod of the lifting cylinder 18 pushes the arc-shaped seat 19 upwards, the arc-shaped seat 19 passes through the lifting port 20 to rise to one side of the push pipe seat 31, the push pipe cylinder 30 is opened, the piston rod of the push pipe cylinder 30 pushes the push pipe seat 31, the organic rigid reinforced and toughened alloy pipes for burying on the arc-shaped seat 19 are pushed into the cooling pipe 25, the water in the cooling water tank 21 is pumped by, and the cooling water is conveyed into the spiral pipe 26 through the connecting pipe 23, the spiral pipe 26 cools the cooling pipe 25, the cooling pipe 25 cools the cutting position of the buried organic rigid reinforced and toughened alloy pipe therein, the buried organic rigid reinforced and toughened alloy pipe is pushed out from the cooling pipe 25 by the pipe pushing seat 31 after cooling, the buried organic rigid reinforced and toughened alloy pipe falls onto the water filtering plate 29 in the header box 28, the cooling water in the spiral pipe 26 is conveyed out through the water discharging pipe 27, the cooling water cools the buried organic rigid reinforced and toughened alloy pipe on the water filtering plate 29, the post cooling water flows to the bottom of the header box 28 through the water filtering plate 29, and the cut organic rigid reinforced and toughened alloy pipe for buried can be taken out from the header box 28.
Specifically, the preparation method of the modified graphene comprises the following steps: firstly, preprocessing 10 parts of nano zinc oxide whiskers: drying in a 100 ℃ oven for 2h, and cooling to less than 60 ℃ after drying; secondly, dissolving 3 parts of vinyl silane coupling agent in 40 parts of absolute ethyl alcohol, adding the pretreated and cooled nano zinc oxide whisker for ultrasonic dispersion, heating to 70 ℃, uniformly stirring and filtering to obtain modified nano zinc oxide whisker for later use; adding 20 parts of polymethacrylic acid into 60 parts of ethylene glycol ethyl ether to prepare a solution A, stirring for 2 hours by using a stirrer, sequentially adding the modified nano zinc oxide whiskers and 20 parts of graphene powder into the solution A, carrying out ultrasonic treatment for 30 minutes, adding 3 parts of cellulose acetate butyrate, 2 parts of sodium dodecyl benzene sulfonate and 3 parts of N-methyldiethanolamine, and continuously stirring for 4 hours to obtain the modified graphene. The compatibilizer is maleic anhydride grafted polyethylene. The lubricant is oxidized polyethylene wax. The fire retardant is brucite powder. The antioxidant is American Yabao antioxidant PW-9215. The coupling agent is an aluminate coupling agent DH-306. The processing aid is dioctyl phthalate DOP; the initiator is tert-butyl peroxypivalate.
The notched impact strength of the organic rigid reinforcing and toughening alloy pipe for burying in example 1 was 6.3KJ/m2。
Example 2
The buried organic rigid reinforced and toughened alloy pipe is prepared from the following raw materials in parts by weight: 120 parts of high-density polyethylene, 20 parts of linear low-density polyethylene, 20 parts of chlorinated polyethylene, 12 parts of modified graphene, 12 parts of compatibilizer, 3 parts of lubricant, 9 parts of flame retardant, 1.5 parts of antioxidant, 3 parts of coupling agent, 5 parts of nano calcium carbonate, 3 parts of processing aid and 6 parts of initiator;
the buried organic rigid reinforced and toughened alloy pipe is prepared by the following steps:
the method comprises the following steps: adding low-density polyethylene, chlorinated polyethylene, an antioxidant and a coupling agent with the total amount of 1/2 into a high-speed mixer, uniformly mixing the raw materials in the high-speed mixer, plasticizing, adding an initiator, and uniformly mixing to obtain a mixture A;
step two: putting high-density polyethylene, modified graphene, a compatibilizer, a lubricant, a flame retardant, an antioxidant, a coupling agent with the total amount of 1/2, nano calcium carbonate and a processing aid into a high-speed stirrer, stirring for 40min, adding the mixture A obtained in the first step, continuously stirring for 20min, and fully and uniformly mixing to obtain a mixture B;
step three: pouring the mixture B into a double-screw extruder, heating, pressurizing and plasticizing to a molten state, extruding a profile, cooling the profile to 90 ℃, and simultaneously drawing the profile in two directions in a winding direction and a forward direction, wherein the rest steps are the same as those of the example 1.
Specifically, the preparation method of the modified graphene comprises the following steps: firstly, pretreating 20 parts of nano zinc oxide whiskers: drying in a 120 ℃ oven for 3h, and cooling to less than 60 ℃ after drying; secondly, dissolving 5 parts of vinyl silane coupling agent in 60 parts of absolute ethyl alcohol, adding the pretreated and cooled nano zinc oxide whisker for ultrasonic dispersion, heating to 80 ℃, uniformly stirring and filtering to obtain modified nano zinc oxide whisker for later use; adding 30 parts of polymethacrylic acid into 80 parts of ethylene glycol ethyl ether to prepare a solution A, stirring for 3 hours by using a stirrer, sequentially adding the modified nano zinc oxide whiskers and 30 parts of graphene powder into the solution A, performing ultrasonic treatment for 40 minutes, adding 5 parts of cellulose acetate butyrate, 4 parts of sodium dodecyl benzene sulfonate and 5 parts of N-methyldiethanolamine, and continuously stirring for 6 hours to obtain the modified graphene. The compatibilizer is maleic anhydride grafted polyethylene. The lubricant is ethylene bisoleic acid amide EBO. The fire retardant is brucite powder or sepiolite. The antioxidant is American Yabao antioxidant PW-9215. The coupling agent is a silane coupling agent KH-560. The processing aid is plastic brightener PE wax; the initiator is cobalt stearate.
The notched impact strength of the organic rigid reinforcing and toughening alloy pipe for burying in example 2 was 6.6KJ/m2。
The cutting equipment comprises a processing chamber 1, a conveying mechanism 2 is arranged in the processing chamber 1, the conveying mechanism 2 comprises a guide pipe 3, three side fixing strips 4 are arranged on the outer peripheral surface of the guide pipe 3, the three side fixing strips 4 are arranged on the outer peripheral surface of the guide pipe 3 in an equal radian manner, four first rotating arms 6 are rotatably arranged on the side fixing strips 4, guide blocks 8 are rotatably arranged on the side fixing strips 4, two second rotating arms 7 are rotatably arranged on the guide blocks 8, the four first rotating arms 6 and the two second rotating arms 7 are both rotatably connected with a belt conveying shell 5, a guide air cylinder 9 is arranged on the side fixing strips 4, a piston rod of the guide air cylinder 9 is connected with the guide blocks 8, two belt pulleys 11 are rotatably arranged in the belt conveying shell 5, the two belt pulleys 11 are respectively rotatably arranged on two sides of the belt conveying shell 5, the two belt pulleys 11 are in transmission connection through a conveying belt 10, the output shaft of the conveying motor 12 is connected with one belt pulley 11, one side of the processing chamber 1 is provided with a pipe feeding port 13, the conveying mechanism 2 is arranged at the position of the pipe feeding port 13, the top of the inner wall of the processing chamber 1 is provided with a cutting mechanism 14, the cutting mechanism 14 comprises a cutting cylinder 15, the end part of a piston rod of the cutting cylinder 15 is provided with a cutting shell 16, a cutting blade 162 is arranged in the cutting shell 16 in a rotating way, the outer wall of the cutting shell 16 is provided with a cutting motor 161, the output shaft of the cutting motor 161 is connected with the cutting blade 162, the bottom of an inner cavity of the processing chamber 1 is provided with a lifting mechanism 17, the lifting mechanism 17 comprises a lifting cylinder 18, the end part of a piston rod of the lifting cylinder 18 is provided with an arc-shaped seat 19, the top of the processing chamber 1 is, the water pumping end of the water pump 22 is communicated with the cooling water tank 21 through a water pipe, the water outlet end of the water pump 22 is provided with a connecting pipe 23, the top of the processing chamber 1 is provided with two fixing seats 24, a cooling pipe 25 is arranged between the two fixing seats 24, the outer peripheral surface of the cooling pipe 25 is wound with a spiral pipe 26, one end of the spiral pipe 26 is communicated with the connecting pipe 23, the other end of the spiral pipe 26 is connected with a drain pipe 27, one side of the processing chamber 1 is provided with a header 28, the drain pipe 27 is far away from the side wall of the spiral pipe 26 communicated with the header 28, the inner cavity of the header 28 is provided with a water filtering plate 29, the water filtering plate 29 is obliquely arranged in the inner.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (9)
1. The buried organic rigid reinforced and toughened alloy pipe is characterized by being prepared from the following raw materials in parts by weight: 100-120 parts of high-density polyethylene, 10-20 parts of linear low-density polyethylene, 10-20 parts of chlorinated polyethylene, 8-12 parts of modified graphene, 6-12 parts of compatibilizer, 1-3 parts of lubricant, 3-9 parts of flame retardant, 0.5-1.5 parts of antioxidant, 1-3 parts of coupling agent, 1-5 parts of nano calcium carbonate, 1-3 parts of processing aid and 4-6 parts of initiator;
the buried organic rigid reinforced and toughened alloy pipe is prepared by the following steps:
the method comprises the following steps: adding linear low-density polyethylene, chlorinated polyethylene, an antioxidant and a coupling agent with the total amount of 1/2 into a high-speed mixer, uniformly mixing the raw materials in the high-speed mixer, plasticizing, adding an initiator, and uniformly mixing to obtain a mixture A;
step two: putting high-density polyethylene, modified graphene, a compatibilizer, a lubricant, a flame retardant, an antioxidant, a coupling agent with the total amount of 1/2, nano calcium carbonate and a processing aid into a high-speed stirrer, stirring for 30-40min, adding the mixture A obtained in the step one, continuously stirring for 10-20min, and fully and uniformly mixing to obtain a mixture B;
step three: adding the mixture B into a double-screw extruder, extruding a profile after melting, when the profile is cooled to 40-90 ℃, drawing the profile in a winding direction and a forward direction in a two-way manner simultaneously to obtain an organic rigid reinforced toughened alloy pipe for burying, placing the organic rigid reinforced toughened alloy pipe for burying on a conveying mechanism of cutting equipment, respectively pushing three corresponding guide blocks by guide cylinders on three side fixing strips, driving two second rotating arms to rotate by the guide blocks, driving a belt conveying shell to move by the two second rotating arms matching with the four first rotating arms, contacting the inner wall of the organic rigid reinforced toughened alloy pipe for burying on the three belt conveying shell by three conveying belts, simultaneously rotating three conveying motor output shafts, driving belt pulleys to rotate by the conveying motor output shafts, driving the conveying belts to rotate by the two belt pulleys, conveying the organic rigid reinforced toughened alloy pipe for burying by the three conveying belts, one end of an organic rigid reinforced and toughened alloy pipe for burying underground is conveyed to an arc seat by a conveying mechanism, a cutting cylinder is started, a piston rod of the cutting cylinder pushes a cutting shell downwards, the cutting shell drives a cutting blade to descend, a cutting motor is started, an output shaft of the cutting motor drives the cutting blade to rotate, the cutting blade cuts the organic rigid reinforced and toughened alloy pipe for burying underground, a lifting cylinder is started, a piston rod of the lifting cylinder pushes the arc seat upwards, the arc seat passes through a lifting port to ascend to one side of a push pipe seat, a push pipe cylinder is started, a piston rod of the push pipe cylinder pushes a push pipe seat, the push pipe seat pushes the organic rigid reinforced and toughened alloy pipe for burying underground on the arc seat into a cooling pipe, a water pump extracts cooling water in a cooling water tank and conveys the cooling water into a spiral pipe through a connecting pipe, the spiral pipe cools the cooling pipe, and the cooling pipe cools the cutting position of the organic, after cooling, the buried organic rigid reinforced and toughened alloy pipe is pushed out of the cooling pipe by a pipe pushing seat, the buried organic rigid reinforced and toughened alloy pipe falls onto a water filtering plate in a header box, cooling water in a spiral pipe is conveyed out through a drain pipe, the cooling water cools the buried organic rigid reinforced and toughened alloy pipe on the water filtering plate, then the cooling water flows to the bottom of the header box through the water filtering plate, and the cut buried organic rigid reinforced and toughened alloy pipe is taken out of the header box.
2. The preparation method of the organic rigid reinforced and toughened alloy pipe for burying is characterized by comprising the following steps:
the method comprises the following steps: adding linear low-density polyethylene, chlorinated polyethylene, an antioxidant and a coupling agent with the total amount of 1/2 into a high-speed mixer, uniformly mixing the raw materials in the high-speed mixer, plasticizing, adding an initiator, and uniformly mixing to obtain a mixture A;
step two: putting high-density polyethylene, modified graphene, a compatibilizer, a lubricant, a flame retardant, an antioxidant, a coupling agent with the total amount of 1/2, nano calcium carbonate and a processing aid into a high-speed stirrer, stirring for 30-40min, adding the mixture A obtained in the step one, continuously stirring for 10-20min, and fully and uniformly mixing to obtain a mixture B;
step three: adding the mixture B into a double-screw extruder, extruding a profile after melting, when the profile is cooled to 40-90 ℃, drawing the profile in a winding direction and a forward direction in a two-way manner simultaneously to obtain an organic rigid reinforced toughened alloy pipe for burying, placing the organic rigid reinforced toughened alloy pipe for burying on a conveying mechanism of cutting equipment, respectively pushing three corresponding guide blocks by guide cylinders on three side fixing strips, driving two second rotating arms to rotate by the guide blocks, driving a belt conveying shell to move by the two second rotating arms matching with the four first rotating arms, contacting the inner wall of the organic rigid reinforced toughened alloy pipe for burying on the three belt conveying shell by three conveying belts, simultaneously rotating three conveying motor output shafts, driving belt pulleys to rotate by the conveying motor output shafts, driving the conveying belts to rotate by the two belt pulleys, conveying the organic rigid reinforced toughened alloy pipe for burying by the three conveying belts, one end of an organic rigid reinforced and toughened alloy pipe for burying underground is conveyed to an arc seat by a conveying mechanism, a cutting cylinder is started, a piston rod of the cutting cylinder pushes a cutting shell downwards, the cutting shell drives a cutting blade to descend, a cutting motor is started, an output shaft of the cutting motor drives the cutting blade to rotate, the cutting blade cuts the organic rigid reinforced and toughened alloy pipe for burying underground, a lifting cylinder is started, a piston rod of the lifting cylinder pushes the arc seat upwards, the arc seat passes through a lifting port to ascend to one side of a push pipe seat, a push pipe cylinder is started, a piston rod of the push pipe cylinder pushes a push pipe seat, the push pipe seat pushes the organic rigid reinforced and toughened alloy pipe for burying underground on the arc seat into a cooling pipe, a water pump extracts cooling water in a cooling water tank and conveys the cooling water into a spiral pipe through a connecting pipe, the spiral pipe cools the cooling pipe, and the cooling pipe cools the cutting position of the organic, after cooling, the buried organic rigid reinforced and toughened alloy pipe is pushed out of the cooling pipe by a pipe pushing seat, the buried organic rigid reinforced and toughened alloy pipe falls onto a water filtering plate in a header box, cooling water in a spiral pipe is conveyed out through a drain pipe, the cooling water cools the buried organic rigid reinforced and toughened alloy pipe on the water filtering plate, then the cooling water flows to the bottom of the header box through the water filtering plate, and the cut buried organic rigid reinforced and toughened alloy pipe is taken out of the header box.
3. The preparation method of the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the preparation method of the modified graphene comprises the following steps: putting 10-20 parts of nano zinc oxide whisker into a drying oven at 110 +/-10 ℃ for drying for 2-3h, cooling to less than 60 ℃ after drying, dissolving 3-5 parts of vinyl silane coupling agent in 40-60 parts of absolute ethyl alcohol, adding the cooled nano zinc oxide whisker for ultrasonic dispersion, stirring at 70-80 ℃, uniformly stirring and filtering to obtain modified nano zinc oxide whisker for later use, adding 20-30 parts of polymethacrylic acid into 60-80 parts of ethylene glycol ethyl ether to obtain a solution A, stirring by a stirrer for 2-3h, sequentially adding the modified nano zinc oxide whisker and 20-30 parts of graphene powder into the solution A, ultrasonically dispersing for 30-40min, adding 3-5 parts of cellulose acetate butyrate, 2-4 parts of sodium dodecyl benzene sulfonate and 3-5 parts of N-methyldiethanolamine, and continuously stirring for 4-6h to obtain the modified graphene.
4. The method for preparing the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the compatibilizer is maleic anhydride grafted polyethylene.
5. The method for preparing the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the lubricant is oxidized polyethylene wax or ethylene bis-oleamide EBO.
6. The method for preparing the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the fire retardant is brucite powder or sepiolite.
7. The method for preparing the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the antioxidant is American jaba antioxidant PW-9215.
8. The method for preparing the buried organic rigid reinforcing and toughening alloy pipe according to claim 2, wherein the coupling agent is at least one of an aluminate coupling agent DH-306 and a silane coupling agent KH-560.
9. The method for preparing the buried organic rigid reinforced and toughened alloy pipe according to claim 2, wherein the processing aid is dioctyl phthalate DOP or a plastic brightener; the initiator is tert-butyl peroxypivalate or cobalt stearate.
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