CN113372665A - Polyethylene corrugated pipe and processing technology thereof - Google Patents
Polyethylene corrugated pipe and processing technology thereof Download PDFInfo
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- CN113372665A CN113372665A CN202110868352.9A CN202110868352A CN113372665A CN 113372665 A CN113372665 A CN 113372665A CN 202110868352 A CN202110868352 A CN 202110868352A CN 113372665 A CN113372665 A CN 113372665A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
The invention discloses a polyethylene corrugated pipe and a processing technology thereof, wherein the polyethylene corrugated pipe comprises the following raw materials in parts by weight: 150-180 parts of polyvinyl chloride resin, 8-16 parts of nano calcium carbonate, 16-24 parts of triethyl citrate, 3.5-5.5 parts of heat stabilizer, 0.5-1.5 parts of lubricant, 1-3 parts of antioxidant, 0.5-1.1 parts of fluid-based organic tin stabilizer, 8-12 parts of tetrabutyl phosphine fluoride, 4-8 parts of emulsifier, 10-18 parts of assistant and 10-16 parts of auxiliary agent. Has the advantages that: by adopting polyethylene, polyvinyl chloride and other raw materials, the double-wall corrugated pipe with excellent performance is prepared, and the double-wall corrugated pipe overcomes the defects of good toughness and poor rigidity of the polyethylene corrugated pipe; the defects of good rigidity and poor toughness of the polyvinyl chloride are also made up; the advantages of good toughness of polyethylene, good rigidity of polyvinyl chloride and good flame retardance are integrated.
Description
Technical Field
The invention relates to the technical field of pipes, in particular to a polyethylene corrugated pipe and a processing technology thereof.
Background
Polyvinyl chloride is a general plastic with excellent cost performance, wherein the polyvinyl chloride resin applied to the corrugated pipe production industry has the advantages of convenient processing, multiple specifications, corrosion resistance, good flexibility, flexible connection and capability of conveying solid powder, liquid and other materials.
The polyvinyl chloride corrugated pipe is a novel pipe with an outer wall of an annular structure and a smooth inner wall made of polyvinyl chloride material, and is widely applied to drainage, blow-off pipes, building rainwater pipes and the like of municipal engineering due to the advantages of strong external pressure resistance, low engineering cost, convenient construction and the like. However, the polyvinyl chloride double-wall corrugated pipe also has the problem of poor toughness, and the polyvinyl chloride pipe is easy to crack and damage due to the fact that the polyvinyl chloride pipe is easy to be blocked by dirt or impurities under the two states of hydraulic pressure, gravity flow and pressure flow.
An effective solution to the problems in the related art has not been proposed yet.
Disclosure of Invention
The present invention provides a polyethylene corrugated pipe and a processing technique thereof, which aims to solve the technical problems of the prior art.
Therefore, the invention adopts the following specific technical scheme:
a polyethylene corrugated pipe comprises the following raw materials in parts by weight: 150-180 parts of polyvinyl chloride resin, 8-16 parts of nano calcium carbonate, 16-24 parts of triethyl citrate, 3.5-5.5 parts of heat stabilizer, 0.5-1.5 parts of lubricant, 1-3 parts of antioxidant, 0.5-1.1 parts of fluid-based organic tin stabilizer, 8-12 parts of tetrabutyl phosphine fluoride, 4-8 parts of emulsifier, 10-18 parts of assistant and 10-16 parts of auxiliary agent.
Preferably, the auxiliary agent consists of the following raw materials in parts by weight: 8-12 parts of magnesium stearate, 3-6 parts of a compatibilizer, 8-12 parts of an impact modifier, 9-15 parts of isocyanic acid, 2-4 parts of carbon fiber and 5-7 parts of a titanate coupling agent.
Preferably, the auxiliary agent consists of the following raw materials in parts by weight: 3-6 parts of carbon black, 5-9 parts of aluminum hydroxide powder, 2-6 parts of paraffin, 2-6 parts of a flame retardant, 5-9 parts of hexamethyl phosphorus cruriamine, 6-10 parts of tribasic lead phosphite, 2.5-3.5 parts of graphite powder, 4-6 parts of calcium oxide, 2-4 parts of silicon dioxide and 2-4 parts of glass fiber.
Preferably, the polymerization degree of the polyvinyl chloride with the polymerization degree is 2500, and the heat stabilizer is one or more of a composite lead salt stabilizer, a calcium-zinc stabilizer or an organic tin stabilizer.
Preferably, the impact modifier is one or more of chlorinated polyethylene, acrylates, ethylene-vinyl acetate copolymer and methyl methacrylate-butadiene-styrene ternary graft copolymer, and the lubricant is one or more of paraffin, polyethylene wax, stearic acid, monoglyceride, oxidized polyethylene wax, calcium stearate or lead stearate.
Preferably, the antioxidant is any one of antioxidant 1076, antioxidant BHT and antioxidant 618, and the compatibilizer is any one of polyvinyl acetate-ethylene copolymer, styrene-maleic anhydride copolymer and acrylonitrile-butadiene-styrene graft.
According to another aspect of the present invention, there is provided a process for manufacturing a polyethylene corrugated pipe, comprising the following steps:
s101, preparing an auxiliary agent; mixing magnesium stearate, a bulking agent, isocyanic acid and carbon fiber, and stirring for 5-8min at the rotating speed of 300-600 rpm to obtain a primary mixture;
s103, adding an impact modifier and a titanate coupling agent into the preliminary mixture, mixing and stirring for 5-10min at the rotating speed of 1100-1500 rpm, and then heating to 80-120 ℃ to obtain an auxiliary agent material;
s105, preparing an auxiliary agent; adding carbon black, aluminum hydroxide powder, paraffin, a flame retardant, hexamethyl phosphorus cruriamine and water into a reaction kettle prepared in advance, and stirring for 20-40min at the speed of 1000-1200r/min to obtain primary slurry;
s107, adding tribasic lead phosphite, graphite powder, calcium oxide, silicon dioxide and glass fiber into the obtained primary slurry, stirring for 40-100min at 70-90 ℃, then drying at 85-100 ℃, and grinding the dried solid to obtain powder;
s109, processing the powder by adopting low-temperature plasma, and putting the polyvinyl chloride resin, the nano calcium carbonate, the triethyl citrate, the heat stabilizer and the lubricant into a hot mixing cylinder of a high-speed mixer set; starting high-speed stirring, discharging the materials into a cold mixing cylinder when the temperature of the hot mixing cylinder reaches 125-135 ℃, and stirring and cooling to obtain a mixture;
s111, stopping stirring when the temperature of the mixture in the cold mixing cylinder is reduced to be below 55 ℃, then adding an antioxidant, a fluid-based organic tin stabilizer, tetrabutyl phosphine fluoride and an emulsifier, stirring and cooling, and discharging when the temperature is reduced to 40-50 ℃;
s113, putting the cooled material into a double-screw extruder with the rotating speed matched with a forming machine, extruding at the temperature of 180-210 ℃, shaping the molten and extruded material in a corresponding compression molding machine, carrying out vacuum sizing after shaping, cooling, drawing and cutting, and automatically flaring and inserting the wire to obtain the polyethylene corrugated pipe.
Preferably, the barrel body temperature of the compression molding is 150-175 ℃, the neck mold temperature is not more than 210 ℃, and the emulsifier is one of disodium dodecyl benzene sulfonate and sodium p-styrene sulfonate; the initiator is one of ammonium persulfate and potassium persulfate.
The invention has the beneficial effects that: by adopting polyethylene, polyvinyl chloride and other raw materials, the double-wall corrugated pipe with excellent performance is prepared, and the double-wall corrugated pipe overcomes the defects of good toughness and poor rigidity of the polyethylene corrugated pipe; the defects of good rigidity and poor toughness of the polyvinyl chloride are also made up; the advantages of good toughness of polyethylene, good rigidity of polyvinyl chloride and good flame retardance are integrated, the obtained pipe has higher ring stiffness, chemical reaction can be carried out between the insides of polyvinyl chloride free radicals, and the reinforcement and toughening of the polyvinyl chloride double-wall corrugated pipe are realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a flow chart illustrating steps of a polyethylene corrugated pipe and a processing method thereof according to an embodiment of the present invention.
Detailed Description
For further explanation of the various embodiments, the drawings which form a part of the disclosure and which are incorporated in and constitute a part of this specification, illustrate embodiments and, together with the description, serve to explain the principles of operation of the embodiments, and to enable others of ordinary skill in the art to understand the various embodiments and advantages of the invention, and, by reference to these figures, reference is made to the accompanying drawings, which are not to scale and wherein like reference numerals generally refer to like elements.
According to the embodiment of the invention, a polyethylene corrugated pipe and a processing technology thereof are provided.
The first embodiment;
as shown in fig. 1, the polyethylene corrugated pipe according to the embodiment of the present invention comprises the following raw materials in parts by weight: 150-180 parts of polyvinyl chloride resin, 8-16 parts of nano calcium carbonate, 16-24 parts of triethyl citrate, 3.5-5.5 parts of heat stabilizer, 0.5-1.5 parts of lubricant, 1-3 parts of antioxidant, 0.5-1.1 parts of fluid-based organic tin stabilizer, 8-12 parts of tetrabutyl phosphine fluoride, 4-8 parts of emulsifier, 10-18 parts of assistant and 10-16 parts of auxiliary agent.
The auxiliary agent comprises the following raw materials in parts by weight: 8-12 parts of magnesium stearate, 3-6 parts of a compatibilizer, 8-12 parts of an impact modifier, 9-15 parts of isocyanic acid, 2-4 parts of carbon fiber and 5-7 parts of a titanate coupling agent.
The auxiliary agent comprises the following raw materials in parts by weight: 3-6 parts of carbon black, 5-9 parts of aluminum hydroxide powder, 2-6 parts of paraffin, 2-6 parts of a flame retardant, 5-9 parts of hexamethyl phosphorus cruriamine, 6-10 parts of tribasic lead phosphite, 2.5-3.5 parts of graphite powder, 4-6 parts of calcium oxide, 2-4 parts of silicon dioxide and 2-4 parts of glass fiber.
The polymerization degree of the polyvinyl chloride is 2500, and the heat stabilizer is one or more of a composite lead salt stabilizer, a calcium-zinc stabilizer or an organic tin stabilizer.
The anti-impact modifier is one or more of chlorinated polyethylene, acrylates, an ethylene-vinyl acetate copolymer and a methyl methacrylate-butadiene-styrene ternary graft copolymer, and the lubricant is one or more of paraffin, polyethylene wax, stearic acid, monoglyceride, oxidized polyethylene wax, calcium stearate or lead stearate.
The antioxidant is any one of antioxidant 1076, antioxidant BHT and antioxidant 618, and the compatibilizer is any one of polyvinyl acetate-ethylene copolymer, styrene-maleic anhydride copolymer and acrylonitrile-butadiene-styrene graft.
Example two;
as shown in fig. 1, the polyethylene corrugated pipe according to the embodiment of the present invention comprises the following raw materials in parts by weight: 150 parts of polyvinyl chloride resin, 8 parts of nano calcium carbonate, 16 parts of triethyl citrate, 3.5 parts of heat stabilizer, 0.5 part of lubricant, 1 part of antioxidant, 0.5 part of fluid-based organic tin stabilizer, 8 parts of tetrabutyl phosphine fluoride, 4 parts of emulsifier, 10 parts of assistant and 10 parts of auxiliary agent.
The auxiliary agent comprises the following raw materials in parts by weight: 8 parts of magnesium stearate, 3 parts of a compatibilizer, 8 parts of an impact modifier, 9 parts of isocyanic acid, 2 parts of carbon fiber and 5 parts of a titanate coupling agent.
The auxiliary agent comprises the following raw materials in parts by weight: 3 parts of carbon black, 5 parts of aluminum hydroxide powder, 2 parts of paraffin, 2 parts of a flame retardant, 5 parts of hexamethyl phosphorus cruriamine, 6 parts of tribasic lead phosphite, 2.5 parts of graphite powder, 4 parts of calcium oxide, 2 parts of silicon dioxide and 2 parts of glass fiber.
Example three;
as shown in fig. 1, the polyethylene corrugated pipe according to the embodiment of the present invention comprises the following raw materials in parts by weight: 165 parts of polyvinyl chloride resin, 12 parts of nano calcium carbonate, 20 parts of triethyl citrate, 4.5 parts of a heat stabilizer, 1 part of a lubricant, 2 parts of an antioxidant, 0.8 part of a fluid-based organic tin stabilizer, 10 parts of tetrabutyl phosphine fluoride, 6 parts of an emulsifier, 14 parts of an auxiliary agent and 13 parts of an auxiliary agent.
The auxiliary agent comprises the following raw materials in parts by weight: 10 parts of magnesium stearate, 4.5 parts of a compatibilizer, 10 parts of an impact modifier, 12 parts of isocyanic acid, 3 parts of carbon fiber and 6 parts of a titanate coupling agent.
The auxiliary agent comprises the following raw materials in parts by weight: 4.5 parts of carbon black, 7 parts of aluminum hydroxide powder, 4 parts of paraffin, 4 parts of flame retardant, 6 parts of hexamethyl phosphorous cruriamine, 8 parts of tribasic lead phosphite, 3 parts of graphite powder, 5 parts of calcium oxide, 3 parts of silicon dioxide and 3 parts of glass fiber.
Example four;
as shown in fig. 1, the polyethylene corrugated pipe according to the embodiment of the present invention comprises the following raw materials in parts by weight: 180 parts of polyvinyl chloride resin, 16 parts of nano calcium carbonate, 24 parts of triethyl citrate, 5.5 parts of heat stabilizer, 1.5 parts of lubricant, 3 parts of antioxidant, 1.1 parts of fluid-based organic tin stabilizer, 12 parts of tetrabutyl phosphine fluoride, 8 parts of emulsifier, 18 parts of assistant and 16 parts of auxiliary agent.
The auxiliary agent comprises the following raw materials in parts by weight: 12 parts of magnesium stearate, 6 parts of a compatibilizer, 12 parts of an impact modifier, 15 parts of isocyanic acid, 4 parts of carbon fiber and 7 parts of a titanate coupling agent.
The auxiliary agent comprises the following raw materials in parts by weight: 6 parts of carbon black, 9 parts of aluminum hydroxide powder, 6 parts of paraffin, 6 parts of a flame retardant, 9 parts of hexamethyl phosphorus cruriamine, 10 parts of tribasic lead phosphite, 3.5 parts of graphite powder, 6 parts of calcium oxide, 4 parts of silicon dioxide and 4 parts of glass fiber.
According to another aspect of the present invention, there is provided a process for manufacturing a polyethylene corrugated pipe, comprising the following steps:
step S101, preparing an auxiliary agent; mixing magnesium stearate, a bulking agent, isocyanic acid and carbon fiber, and stirring for 5-8min at the rotating speed of 300-600 rpm to obtain a primary mixture;
s103, adding an impact modifier and a titanate coupling agent into the primary mixture, mixing and stirring for 5-10min at the rotation speed of 1100-1500 rpm, and then heating to 80-120 ℃ to obtain an auxiliary agent;
step S105, preparing an auxiliary agent; adding carbon black, aluminum hydroxide powder, paraffin, a flame retardant, hexamethyl phosphorus cruriamine and water into a reaction kettle prepared in advance, and stirring for 20-40min at the speed of 1000-1200r/min to obtain primary slurry;
step S107, adding tribasic lead phosphite, graphite powder, calcium oxide, silicon dioxide and glass fiber into the obtained primary slurry, stirring for 40-100min at 70-90 ℃, then drying at 85-100 ℃, and grinding the dried solid to obtain powder;
step S109, processing the powder by adopting low-temperature plasma, and putting the polyvinyl chloride resin, the nano calcium carbonate, the triethyl citrate, the heat stabilizer and the lubricant into a hot mixing cylinder of a high-speed mixer set; starting high-speed stirring, discharging the materials into a cold mixing cylinder when the temperature of the hot mixing cylinder reaches 125-135 ℃, and stirring and cooling to obtain a mixture;
s111, stopping stirring when the temperature of the mixture in the cold mixing cylinder is reduced to be below 55 ℃, then adding an antioxidant, a fluid-based organic tin stabilizer, tetrabutyl phosphine fluoride and an emulsifier, stirring and cooling, and discharging when the temperature is reduced to 40-50 ℃;
s113, putting the cooled material into a double-screw extruder with the rotating speed matched with a forming machine, extruding at the temperature of 180-210 ℃, shaping the molten and extruded material in a corresponding compression molding machine, carrying out vacuum sizing after shaping, cooling, drawing and cutting, and automatically flaring and inserting the wire to obtain the polyethylene corrugated pipe.
The temperature of the barrel body for compression molding is 150-175 ℃, the temperature of the neck mold is not more than 210 ℃, and the emulsifier is one of disodium dodecyl benzene sulfonate and sodium p-styrene sulfonate; the initiator is one of ammonium persulfate and potassium persulfate.
In conclusion, by means of the technical scheme, the double-wall corrugated pipe with excellent performance is prepared by adopting the raw materials such as polyethylene, polyvinyl chloride and the like, and the double-wall corrugated pipe overcomes the defects of good toughness and poor rigidity of the polyethylene corrugated pipe; the defects of good rigidity and poor toughness of the polyvinyl chloride are also made up; the advantages of good toughness of polyethylene, good rigidity of polyvinyl chloride and good flame retardance are integrated, the obtained pipe has higher ring stiffness, chemical reaction can be carried out between the insides of polyvinyl chloride free radicals, and the reinforcement and toughening of the polyvinyl chloride double-wall corrugated pipe are realized.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The polyethylene corrugated pipe is characterized by comprising the following raw materials in parts by weight: 150-180 parts of polyvinyl chloride resin, 8-16 parts of nano calcium carbonate, 16-24 parts of triethyl citrate, 3.5-5.5 parts of heat stabilizer, 0.5-1.5 parts of lubricant, 1-3 parts of antioxidant, 0.5-1.1 parts of fluid-based organic tin stabilizer, 8-12 parts of tetrabutyl phosphine fluoride, 4-8 parts of emulsifier, 10-18 parts of assistant and 10-16 parts of auxiliary agent.
2. The polyethylene corrugated pipe as claimed in claim 1, wherein the auxiliary agent comprises the following raw materials in parts by weight: 8-12 parts of magnesium stearate, 3-6 parts of a compatibilizer, 8-12 parts of an impact modifier, 9-15 parts of isocyanic acid, 2-4 parts of carbon fiber and 5-7 parts of a titanate coupling agent.
3. The polyethylene corrugated pipe as claimed in claim 1, wherein the adjuvant comprises the following raw materials in parts by weight: 3-6 parts of carbon black, 5-9 parts of aluminum hydroxide powder, 2-6 parts of paraffin, 2-6 parts of a flame retardant, 5-9 parts of hexamethyl phosphorus cruriamine, 6-10 parts of tribasic lead phosphite, 2.5-3.5 parts of graphite powder, 4-6 parts of calcium oxide, 2-4 parts of silicon dioxide and 2-4 parts of glass fiber.
4. The polyethylene corrugated pipe as claimed in claim 1, wherein the degree of polymerization of the polyvinyl chloride is 2500, and the heat stabilizer is one or more of a composite lead salt stabilizer, a calcium zinc stabilizer, or an organic tin stabilizer.
5. The polyethylene corrugated pipe as claimed in claim 1, wherein the impact modifier is one or more selected from chlorinated polyethylene, acrylates, ethylene-vinyl acetate copolymer and methyl methacrylate-butadiene-styrene terpolymer, and the lubricant is one or more selected from paraffin wax, polyethylene wax, stearic acid, monoglyceride, oxidized polyethylene wax, calcium stearate and lead stearate.
6. The polyethylene corrugated pipe according to claim 1, wherein the antioxidant is any one of antioxidant 1076, antioxidant BHT and antioxidant 618, and the compatibilizer is any one of polyvinyl acetate-ethylene copolymer, styrene-maleic anhydride copolymer and acrylonitrile-butadiene-styrene graft.
7. A polyethylene corrugated pipe and a processing technology thereof are characterized in that the preparation of the polyethylene corrugated pipe of claim 1 comprises the following steps:
s101, preparing an auxiliary agent; mixing magnesium stearate, a bulking agent, isocyanic acid and carbon fiber, and stirring for 5-8min at the rotating speed of 300-600 rpm to obtain a primary mixture;
s103, adding an impact modifier and a titanate coupling agent into the preliminary mixture, mixing and stirring for 5-10min at the rotating speed of 1100-1500 rpm, and then heating to 80-120 ℃ to obtain an auxiliary agent material;
s105, preparing an auxiliary agent; adding carbon black, aluminum hydroxide powder, paraffin, a flame retardant, hexamethyl phosphorus cruriamine and water into a reaction kettle prepared in advance, and stirring for 20-40min at the speed of 1000-1200r/min to obtain primary slurry;
s107, adding tribasic lead phosphite, graphite powder, calcium oxide, silicon dioxide and glass fiber into the obtained primary slurry, stirring for 40-100min at 70-90 ℃, then drying at 85-100 ℃, and grinding the dried solid to obtain powder;
s109, processing the powder by adopting low-temperature plasma, and putting the polyvinyl chloride resin, the nano calcium carbonate, the triethyl citrate, the heat stabilizer and the lubricant into a hot mixing cylinder of a high-speed mixer set; starting high-speed stirring, discharging the materials into a cold mixing cylinder when the temperature of the hot mixing cylinder reaches 125-135 ℃, and stirring and cooling to obtain a mixture;
s111, stopping stirring when the temperature of the mixture in the cold mixing cylinder is reduced to be below 55 ℃, then adding an antioxidant, a fluid-based organic tin stabilizer, tetrabutyl phosphine fluoride and an emulsifier, stirring and cooling, and discharging when the temperature is reduced to 40-50 ℃;
s113, putting the cooled material into a double-screw extruder with the rotating speed matched with a forming machine, extruding at the temperature of 180-210 ℃, shaping the molten and extruded material in a corresponding compression molding machine, carrying out vacuum sizing after shaping, cooling, drawing and cutting, and automatically flaring and inserting the wire to obtain the polyethylene corrugated pipe.
8. The process of claim 7, wherein the barrel temperature for compression molding is 150-175 ℃, the die temperature is not more than 210 ℃, and the emulsifier is one of disodium dodecylbenzene sulfonate and sodium p-styrene sulfonate; the initiator is one of ammonium persulfate and potassium persulfate.
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| CN202110868352.9A CN113372665A (en) | 2021-07-30 | 2021-07-30 | Polyethylene corrugated pipe and processing technology thereof |
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| CN202110868352.9A CN113372665A (en) | 2021-07-30 | 2021-07-30 | Polyethylene corrugated pipe and processing technology thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775180A (en) * | 2009-12-29 | 2010-07-14 | 山东华信塑胶股份有限公司 | Impact-resistant modified polyvinyl chloride tube material and preparation process thereof |
| CN104497447A (en) * | 2014-12-19 | 2015-04-08 | 黄文鹏 | Polyvinyl chloride double-wall corrugated pipe and preparation method thereof |
| CN109054216A (en) * | 2018-05-29 | 2018-12-21 | 广东联塑科技实业有限公司 | A kind of corrugated dual-wall hard PVC pipe and preparation method thereof |
-
2021
- 2021-07-30 CN CN202110868352.9A patent/CN113372665A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775180A (en) * | 2009-12-29 | 2010-07-14 | 山东华信塑胶股份有限公司 | Impact-resistant modified polyvinyl chloride tube material and preparation process thereof |
| CN104497447A (en) * | 2014-12-19 | 2015-04-08 | 黄文鹏 | Polyvinyl chloride double-wall corrugated pipe and preparation method thereof |
| CN109054216A (en) * | 2018-05-29 | 2018-12-21 | 广东联塑科技实业有限公司 | A kind of corrugated dual-wall hard PVC pipe and preparation method thereof |
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