CN113337026A - Preparation process of corrosion-resistant PE drain pipe - Google Patents
Preparation process of corrosion-resistant PE drain pipe Download PDFInfo
- Publication number
- CN113337026A CN113337026A CN202110715984.1A CN202110715984A CN113337026A CN 113337026 A CN113337026 A CN 113337026A CN 202110715984 A CN202110715984 A CN 202110715984A CN 113337026 A CN113337026 A CN 113337026A
- Authority
- CN
- China
- Prior art keywords
- parts
- corrosion
- resistant
- raw materials
- drain pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005260 corrosion Methods 0.000 title claims abstract description 31
- 230000007797 corrosion Effects 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000004698 Polyethylene Substances 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 22
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 22
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 claims abstract description 18
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 claims abstract description 18
- 238000007493 shaping process Methods 0.000 claims abstract description 17
- 229960000892 attapulgite Drugs 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims abstract description 12
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 238000004806 packaging method and process Methods 0.000 claims abstract description 11
- 239000002131 composite material Substances 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000008187 granular material Substances 0.000 claims abstract description 9
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 230000009471 action Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 11
- 239000003963 antioxidant agent Substances 0.000 claims description 10
- 230000003078 antioxidant effect Effects 0.000 claims description 10
- 239000000498 cooling water Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000003607 modifier Substances 0.000 claims description 9
- 239000007822 coupling agent Substances 0.000 claims description 8
- 239000002667 nucleating agent Substances 0.000 claims description 8
- 239000004595 color masterbatch Substances 0.000 claims description 7
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical group O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- VSAWBBYYMBQKIK-UHFFFAOYSA-N 4-[[3,5-bis[(3,5-ditert-butyl-4-hydroxyphenyl)methyl]-2,4,6-trimethylphenyl]methyl]-2,6-ditert-butylphenol Chemical compound CC1=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C(CC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)C(C)=C1CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 VSAWBBYYMBQKIK-UHFFFAOYSA-N 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- LZZYPRNAOMGNLH-UHFFFAOYSA-M Cetrimonium bromide Chemical compound [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C LZZYPRNAOMGNLH-UHFFFAOYSA-M 0.000 claims description 2
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- 239000013543 active substance Substances 0.000 claims description 2
- 125000002091 cationic group Chemical group 0.000 claims description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 5
- 238000005303 weighing Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000006057 Non-nutritive feed additive Substances 0.000 abstract description 2
- -1 polyethylene Polymers 0.000 description 7
- 229920000573 polyethylene Polymers 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 229920001684 low density polyethylene Polymers 0.000 description 4
- 239000004702 low-density polyethylene Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000004513 sizing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- FWDBOZPQNFPOLF-UHFFFAOYSA-N ethenyl(triethoxy)silane Chemical compound CCO[Si](OCC)(OCC)C=C FWDBOZPQNFPOLF-UHFFFAOYSA-N 0.000 description 1
- NKSJNEHGWDZZQF-UHFFFAOYSA-N ethenyl(trimethoxy)silane Chemical compound CO[Si](OC)(OC)C=C NKSJNEHGWDZZQF-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
-
- 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
- B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/24—Crystallisation aids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a preparation process of a corrosion-resistant PE drain pipe, which comprises the following steps: (1) pretreatment of raw materials: firstly, weighing a certain amount of HDPE, UHMWPE, modified attapulgite and processing aid, removing mechanical impurities on the surface of the raw materials, drying, uniformly mixing, extruding, cooling and granulating to obtain pretreated PE composite granules; (2) and (3) extrusion molding: adding the PE composite granules into an extruder, and melting and plasticizing the raw materials under the action of the extruder to obtain a heat pipe blank with a required size; (3) shaping and cooling; (4) stretching and drawing; (5) and (6) cutting and packaging. The UHMWPE and the modified attapulgite are added into the HDPE for melt blending, and the modified PE drain pipe is manufactured through an extrusion molding process.
Description
Technical Field
The invention relates to the technical field of pipe production, in particular to a preparation process of a corrosion-resistant PE drain pipe.
Background
The drain pipe mainly bears the drainage tasks of rainwater, sewage, farmland irrigation and drainage and the like, is one of the infrastructures of urban construction, and is divided into a plastic drain pipe, a Concrete Pipe (CP) and a Reinforced Concrete Pipe (RCP), wherein the plastic drain pipe is widely applied to the field of the drain pipe due to the characteristics of light weight, smooth pipe wall, high overflowing capacity, good sealing performance, long service life, convenience in transportation and installation, high construction speed and the like.
The plastic pipeline in China develops rapidly and the quality is improved continuously. Wherein PE (polyethylene) material is because its intensity is high, corrosion-resistant, characteristics such as nontoxic are extensively applied to building feedwater, building drainage, bury ground drain pipe, building heating, gas-supply pipe, electrician and telecommunication protective case, industrial pipe, agricultural use in fields such as pipe, PE (polyethylene) is the macromolecular material of being polymerized by ethylene, can divide 2 categories: HDPE (high density polyethylene) and LDPE (low density polyethylene); HDPE is polymerized at lower pressures and is therefore also known as "low pressure polyethylene" and LDPE is polymerized at higher pressures and is therefore also known as "high pressure polyethylene". Low density polyethylene has low strength but good flexibility and is used for low pressure small diameter pipe (e.g. made into small diameter coil pipe for rural or construction sites). The polyethylene pipe for water supply, drainage and gas transmission should be made of a polyethylene pipe special material of high-density polyethylene, along with the continuous development of the society, the discharge requirements of various industrial sewage, urban wastewater and the like are continuously increased, and the requirements on the strength and the corrosion resistance of a discharge pipeline are stricter, so that the corrosion resistance of the PE pipe is very necessary to be further improved.
Disclosure of Invention
The invention aims to provide a preparation process of a corrosion-resistant PE drain pipe, and the PE drain pipe produced according to the preparation process effectively improves the corrosion resistance and prolongs the service life. In order to achieve the purpose, the invention adopts the following technical scheme:
a preparation process of a corrosion-resistant PE drain pipe comprises the following steps:
(1) pretreatment of raw materials: firstly, the following raw materials are prepared: HDPE, UHMWPE, modified attapulgite, graphite, nucleating agent, color master batch, antioxidant, flow modifier and coupling agent, removing mechanical impurities on the surface of the raw materials, drying the raw materials at a certain temperature after impurity removal, uniformly mixing the raw materials after drying, and obtaining the pretreated PE composite granules through extrusion, cooling and granulation;
(2) and (3) extrusion molding: preheating each section of an extruder to a certain temperature, adding the PE composite granules obtained in the step (1) into the extruder, melting and plasticizing raw materials under the action of the extruder, introducing the melted and plasticized materials into a head neck mold of the extruder, and extruding to obtain a heat pipe blank with a required size;
(3) shaping and cooling: shaping the heat pipe blank obtained in the step (2) through a shaping device, and cooling through a cooling water tank after shaping to obtain a finished product pipe;
(4) stretching and drawing: stretching and drawing the finished pipe obtained in the step (3) through a drawing device, and carrying out secondary cooling on the finished pipe by spraying cooling water while drawing and drawing;
(5) cutting and packaging: and (4) cutting the finished pipe obtained in the step (4) to a required length through a cutting machine, and packaging and warehousing.
Further, the raw materials are added in parts by weight as follows: 100 parts of HDPE (high-density polyethylene), 45-90 parts of UHMWPE (ultrahigh molecular weight polyethylene), 20-40 parts of modified attapulgite, 10-20 parts of graphite, 8-10 parts of nucleating agent, 1-5 parts of color master batch, 1-5 parts of antioxidant, 5-10 parts of flow modifier and 1-5 parts of coupling agent.
Further, in the step (1), the mixing equipment is a high-speed mixer, the mixing time is 5-20min, the drying is vacuum drying, and the drying temperature is 30-45 ℃.
Further, in the step (1), the modifier for modified attapulgite is a cationic active agent.
Further, in the step (1), the nucleating agent is calcium stearate.
Further, in the step (1), the antioxidant is any one of antioxidant 264, antioxidant 1010 and antioxidant 330.
Further, in the step (1), the coupling agent is any one of a silane coupling agent and a phthalate coupling agent.
Further, in the step (1), the flow modifier is modified montmorillonite organized by CTAB or OTAC.
Further, in the step (2), the extruder is preheated to 165-185 ℃, the temperature for melting and plasticizing in each zone of the extruder is 185-230 ℃, the temperature of the head die is 210-220 ℃, and the rotation speed of the screw is 18-22 r/min.
Further, in the step (3), the setting is vacuum setting.
The principle of the invention is as follows: according to the invention, the UHMWPE and the modified attapulgite are added into the HDPE for blending and melting, meanwhile, the processing aids such as the antioxidant, the flow modifier, the nucleating agent and the like are added, the corrosion-resistant PE drain pipe is manufactured by an extrusion molding process, the strength, the corrosion resistance and the like of the HDPE are improved by adding the UHMWPE, the weather resistance of the HDPE is increased by adding the modified attapulgite, and meanwhile, the corrosion-resistant PE drain pipe manufactured by the method can be widely applied to the fields of urban and chemical sewage discharge and the like due to the good environmental protection property of the attapulgite.
In summary, due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. the molecular weight of UHMWPE adopted in the invention is 150-200 ten thousand, the UHMWPE is a linear structure thermoplastic engineering plastic with excellent performances such as small friction coefficient, low abrasion, chemical resistance, impact resistance, pressure resistance and the like, and the UHMWPE and the HDPE have the same structural formula, so that the UHMWPE and the HDPE have good thermodynamic compatibility, and due to the chain length of the UHMWPE molecules and the mutual entanglement of molecular chains, the processing flowability is poor.
2. According to the invention, the modified attapulgite is blended and added into the PE drain pipe, and the PE drain pipe manufactured by the method can be widely applied to the fields of urban and chemical sewage discharge and the like because the attapulgite has good weather resistance, insulativity and environmental friendliness, is pollution-free, can absorb toxic volatile components, and is green and environment-friendly.
3. The graphite is used as a stabilizer and a filler, and meanwhile, the graphite has good corrosion resistance, so that the corrosion resistance and the stability of the modified HDPE drain pipe can be further improved.
4. The calcium stearate serving as the nucleating agent can improve the crystallinity of HDPE in the processing process, enables PE to become uniform spherulites, can improve the tensile, impact, wear-resisting and other properties of a finished product to a certain extent, and simultaneously plays a role in lubrication, reduces the melt viscosity of a blend and further improves the processing property.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to preferred embodiments. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.
Example 1
A preparation process of a corrosion-resistant PE drain pipe comprises the following steps:
(1) pretreatment of raw materials: firstly, weighing the following raw materials in parts by weight: 100 parts of HDPE, 45 parts of UHMWPE, 20 parts of modified attapulgite, 10 parts of graphite, 8 parts of calcium stearate, 1 part of color master batch, 2641 parts of antioxidant, 10 parts of modified montmorillonite and 1 part of vinyl trimethoxy silane, removing mechanical impurities on the surface of the raw materials, drying the raw materials in vacuum at 30 ℃ after impurity removal is finished, mixing the raw materials in a high-speed mixer for 5min after drying is finished, and extruding, cooling and granulating to obtain pretreated PE composite granules;
(2) and (3) extrusion molding: preheating each section of the extruder to 185 ℃ for 165-. Melting and plasticizing the raw materials under the action of an extruder, introducing the melted and plasticized materials into a mouth mold of a machine head of the extruder, and extruding to obtain a heat pipe blank with a required size;
(3) shaping and cooling: shaping the heat pipe blank through a vacuum sizing sleeve, and cooling the shaped heat pipe blank through a cooling water tank;
(4) stretching and drawing: stretching and drawing the pipe by a drawing device, and secondarily cooling the pipe by spraying cooling water while drawing and drawing;
(5) cutting and packaging: and cutting the obtained qualified pipe to the required length by a cutting machine, and packaging and warehousing.
Example 2
A preparation process of a corrosion-resistant PE drain pipe comprises the following steps:
(1) pretreatment of raw materials: firstly, weighing the following raw materials in parts by weight: 150 parts of HDPE, 75 parts of UHMWPE, 30 parts of modified attapulgite, 15 parts of graphite, 9 parts of calcium stearate, 3 parts of color master batch, 10101 parts of antioxidant, 7 parts of modified montmorillonite and 3 parts of vinyl triethoxysilane, removing mechanical impurities on the surface of the raw materials, performing vacuum drying on the raw materials at 40 ℃, putting the raw materials into a high-speed mixer after completing drying, mixing for 12min, and performing extrusion, cooling and granulation to obtain pretreated PE composite granules;
(2) and (3) extrusion molding: preheating each section of the extruder to 185 ℃ for 165-. Melting and plasticizing the raw materials under the action of an extruder, introducing the melted and plasticized materials into a mouth mold of a machine head of the extruder, and extruding to obtain a heat pipe blank with a required size;
(3) shaping and cooling: shaping the heat pipe blank through a vacuum sizing sleeve, and cooling the shaped heat pipe blank through a cooling water tank;
(4) stretching and drawing: stretching and drawing the pipe by a drawing device, and secondarily cooling the pipe by spraying cooling water while drawing and drawing;
(5) cutting and packaging: and cutting the obtained qualified pipe to the required length by a cutting machine, and packaging and warehousing.
Example 3
A preparation process of a corrosion-resistant PE drain pipe comprises the following steps:
(1) pretreatment of raw materials: firstly, weighing the following raw materials in parts by weight: 200 parts of HDPE, 90 parts of UHMWPE, 40 parts of modified attapulgite, 20 parts of graphite, 10 parts of calcium stearate, 5 parts of color master batch, 3305 parts of antioxidant, 5 parts of modified montmorillonite and 5 parts of phthalate ester, removing mechanical impurities on the surfaces of the raw materials, drying the raw materials in vacuum at 45 ℃ after impurity removal is finished, mixing the raw materials in a high-speed mixer for 5min after drying is finished, and extruding, cooling and granulating to obtain pretreated PE composite granules;
(2) and (3) extrusion molding: preheating each section of the extruder to 185 ℃ for 165-. Melting and plasticizing the raw materials under the action of an extruder, introducing the melted and plasticized materials into a mouth mold of a machine head of the extruder, and extruding to obtain a heat pipe blank with a required size;
(3) shaping and cooling: shaping the heat pipe blank through a vacuum sizing sleeve, and cooling the shaped heat pipe blank through a cooling water tank;
(4) stretching and drawing: stretching and drawing the pipe by a drawing device, and secondarily cooling the pipe by spraying cooling water while drawing and drawing;
(5) cutting and packaging: and cutting the obtained qualified pipe to the required length by a cutting machine, and packaging and warehousing.
The following performance tests were performed on the corrosion-resistant PE composite material of examples 1-3 of the present invention, a blank set was set (the blank set was an unmodified PE pipe, the raw material type and specification of the PE pipe were the same as the raw material source of PE in examples 1-3), the blank set of a certain mass and the material to be tested synthesized in examples 1-3 were respectively taken, simultaneously placing the mixture into sulfuric acid containing 80 percent, soaking the mixture for 15 days at room temperature, then carrying out performance test, three groups of the test are arranged in parallel, the tensile strength is tested according to the test standard of ISO-527, the bending strength is tested according to the test standard of ISO-178, and the specific conditions are shown in Table 1 (in Table 1, the tensile strength 1 and the bending strength 1 are the performances of the material to be tested before the acid leaching test is not carried out, and the tensile strength 2 and the bending strength 2 are the performances of the material to be tested after the acid leaching test is carried out).
TABLE 1
As can be seen from table 1, examples 1-3 have high corrosion resistance and good mechanical properties compared to the blank group for corrosion resistant PE drain pipes made by the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-described technical contents to change or modify the equivalent embodiments into equivalent variations to use in other fields, but any simple modification, equivalent variations and modifications made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (10)
1. The preparation process of the corrosion-resistant PE drain pipe is characterized by comprising the following steps of:
(1) pretreatment of raw materials: firstly, the following raw materials are prepared: HDPE, UHMWPE, modified attapulgite, graphite, nucleating agent, color master batch, antioxidant, flow modifier and coupling agent, removing mechanical impurities on the surface of the raw materials, drying the raw materials at a certain temperature after impurity removal, uniformly mixing the raw materials after drying, and obtaining the pretreated PE composite granules through extrusion, cooling and granulation;
(2) and (3) extrusion molding: preheating each section of an extruder to a certain temperature, adding the PE composite granules obtained in the step (1) into the extruder, melting and plasticizing raw materials under the action of the extruder, introducing the melted and plasticized materials into a head neck mold of the extruder, and extruding to obtain a heat pipe blank with a required size;
(3) shaping and cooling: shaping the heat pipe blank obtained in the step (2) through a shaping device, and cooling through a cooling water tank after shaping to obtain a finished product pipe;
(4) stretching and drawing: stretching and drawing the finished pipe obtained in the step (3) through a drawing device, and carrying out secondary cooling on the finished pipe by spraying cooling water while drawing and drawing;
(5) cutting and packaging: and (4) cutting the finished pipe obtained in the step (4) to a required length through a cutting machine, and packaging and warehousing.
2. The preparation process of the corrosion-resistant PE drain pipe according to claim 1, wherein the raw materials are added in parts by weight: 100 parts of HDPE (high-density polyethylene), 45-90 parts of UHMWPE (ultrahigh molecular weight polyethylene), 20-40 parts of modified attapulgite, 10-20 parts of graphite, 8-10 parts of nucleating agent, 1-5 parts of color master batch, 1-5 parts of antioxidant, 5-10 parts of flow modifier and 1-5 parts of coupling agent.
3. The process for preparing a corrosion-resistant PE drainpipe as claimed in claim 1, wherein in the step (1), the mixing equipment is a high-speed mixer, the mixing time is 5-20min, the drying is vacuum drying, and the drying temperature is 30-45 ℃.
4. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (1), the modifier of the modified attapulgite is a cationic active agent.
5. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (1), the nucleating agent is calcium stearate.
6. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (1), the antioxidant is any one of antioxidant 264, antioxidant 1010 and antioxidant 330.
7. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (1), the coupling agent is any one of a silane coupling agent and a phthalate coupling agent.
8. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (1), the flow modifier is modified montmorillonite organized by CTAB or OTAC.
9. The process for preparing a corrosion-resistant PE drainage pipe as claimed in claim 1, wherein in the step (2), the temperature of the extruder is preheated to 165-185 ℃, the temperature of the extruder during the melting and plasticizing in each zone is 185-230 ℃, the temperature of the head-die is 210-220 ℃, and the rotation speed of the screw is 18-22 r/min.
10. The process for preparing a corrosion-resistant PE drain pipe according to claim 1, wherein in the step (3), the shaping is vacuum shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715984.1A CN113337026A (en) | 2021-06-25 | 2021-06-25 | Preparation process of corrosion-resistant PE drain pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110715984.1A CN113337026A (en) | 2021-06-25 | 2021-06-25 | Preparation process of corrosion-resistant PE drain pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113337026A true CN113337026A (en) | 2021-09-03 |
Family
ID=77478946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110715984.1A Pending CN113337026A (en) | 2021-06-25 | 2021-06-25 | Preparation process of corrosion-resistant PE drain pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113337026A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290644A (en) * | 2021-12-17 | 2022-04-08 | 烟台市佶楷矿山设备科技有限公司 | Method for manufacturing non-metal long carrier roller |
| CN115214041A (en) * | 2022-04-29 | 2022-10-21 | 江苏永顺新材料科技有限公司 | Environment-friendly emission-free melt co-extrusion granulation production process and application thereof |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250297A (en) * | 2008-03-26 | 2008-08-27 | 刘志远 | Nano ceramic super high molecular weight polyethylene modified material pipe and preparation method thereof |
| CN102382344A (en) * | 2010-09-01 | 2012-03-21 | 中国石油化工股份有限公司 | Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof |
| CN102514166A (en) * | 2011-12-23 | 2012-06-27 | 扬州巨业耐磨复合材料有限责任公司 | Ultra-high molecular weight polyethylene wear-resisting pipe extrusion molding technology |
| CN103524851A (en) * | 2013-10-12 | 2014-01-22 | 浙江伟星新型建材股份有限公司 | Flame-retardant antistatic under-coal-mine mortar feed pipe and preparation method thereof |
| CN105086078A (en) * | 2015-08-21 | 2015-11-25 | 重庆新川塔实业股份有限公司 | Corrosion-resistant anti-aging polyethylene composite tube |
| CN106117696A (en) * | 2016-05-16 | 2016-11-16 | 合复新材料科技(无锡)有限公司 | A kind of weather-proof high-density polyethylene material of high shading |
| CN106916357A (en) * | 2017-03-22 | 2017-07-04 | 合肥浦尔菲电线科技有限公司 | A kind of cross-linked poly-ethylene cable material and preparation method thereof |
| CN107141561A (en) * | 2017-06-16 | 2017-09-08 | 重庆共启科技有限公司 | A kind of high-tough fracture-resistant PE tubing |
| CN108864522A (en) * | 2018-06-21 | 2018-11-23 | 合肥安力电力工程有限公司 | A kind of corrosion proof cable material and preparation method thereof |
| CN109111616A (en) * | 2018-05-31 | 2019-01-01 | 广东联塑科技实业有限公司 | A kind of HDPE composite and its preparation method and application of superhigh molecular weight polyethylene material enhancing |
| CN109251397A (en) * | 2018-10-26 | 2019-01-22 | 安庆市悦发管业有限公司 | A kind of high intensity HDPE bellows material and preparation method thereof |
| CN109384995A (en) * | 2018-10-24 | 2019-02-26 | 广西聚成新能源科技有限公司 | Anti-aging, corrosion resistant PE drainpipe of one kind and preparation method thereof |
| CN110078996A (en) * | 2019-04-30 | 2019-08-02 | 杭州久阳塑胶管业有限公司 | Coal mine self-lubricating type hdpe pipe and preparation method thereof |
| CN112225968A (en) * | 2020-09-22 | 2021-01-15 | 临沂东立塑胶建材有限公司 | Preparation method of corrosion-resistant PE (polyethylene) pipe |
-
2021
- 2021-06-25 CN CN202110715984.1A patent/CN113337026A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250297A (en) * | 2008-03-26 | 2008-08-27 | 刘志远 | Nano ceramic super high molecular weight polyethylene modified material pipe and preparation method thereof |
| CN102382344A (en) * | 2010-09-01 | 2012-03-21 | 中国石油化工股份有限公司 | Composition for preparing polyethylene pipe with superhigh molecular weight and preparation method thereof |
| CN102514166A (en) * | 2011-12-23 | 2012-06-27 | 扬州巨业耐磨复合材料有限责任公司 | Ultra-high molecular weight polyethylene wear-resisting pipe extrusion molding technology |
| CN103524851A (en) * | 2013-10-12 | 2014-01-22 | 浙江伟星新型建材股份有限公司 | Flame-retardant antistatic under-coal-mine mortar feed pipe and preparation method thereof |
| CN105086078A (en) * | 2015-08-21 | 2015-11-25 | 重庆新川塔实业股份有限公司 | Corrosion-resistant anti-aging polyethylene composite tube |
| CN106117696A (en) * | 2016-05-16 | 2016-11-16 | 合复新材料科技(无锡)有限公司 | A kind of weather-proof high-density polyethylene material of high shading |
| CN106916357A (en) * | 2017-03-22 | 2017-07-04 | 合肥浦尔菲电线科技有限公司 | A kind of cross-linked poly-ethylene cable material and preparation method thereof |
| CN107141561A (en) * | 2017-06-16 | 2017-09-08 | 重庆共启科技有限公司 | A kind of high-tough fracture-resistant PE tubing |
| CN109111616A (en) * | 2018-05-31 | 2019-01-01 | 广东联塑科技实业有限公司 | A kind of HDPE composite and its preparation method and application of superhigh molecular weight polyethylene material enhancing |
| CN108864522A (en) * | 2018-06-21 | 2018-11-23 | 合肥安力电力工程有限公司 | A kind of corrosion proof cable material and preparation method thereof |
| CN109384995A (en) * | 2018-10-24 | 2019-02-26 | 广西聚成新能源科技有限公司 | Anti-aging, corrosion resistant PE drainpipe of one kind and preparation method thereof |
| CN109251397A (en) * | 2018-10-26 | 2019-01-22 | 安庆市悦发管业有限公司 | A kind of high intensity HDPE bellows material and preparation method thereof |
| CN110078996A (en) * | 2019-04-30 | 2019-08-02 | 杭州久阳塑胶管业有限公司 | Coal mine self-lubricating type hdpe pipe and preparation method thereof |
| CN112225968A (en) * | 2020-09-22 | 2021-01-15 | 临沂东立塑胶建材有限公司 | Preparation method of corrosion-resistant PE (polyethylene) pipe |
Non-Patent Citations (5)
| Title |
|---|
| 朵英贤 等主编: "《纳米塑料技术》", 31 December 2006, 浙江科学技术出版社 * |
| 王双 等: "超高分子量聚乙烯熔体流动性改性研究进展", 《工程塑料应用》 * |
| 王庆昭 等: "UHMWPE/蒙脱土纳米复合材料结构与流动性的关系", 《工程塑料应用》 * |
| 郑水林 等编著: "《粉体表面改性》", 30 June 2019, 中国建材工业出版社 * |
| 钱立军 等编著: "《高分子材料助剂》", 31 August 2020, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114290644A (en) * | 2021-12-17 | 2022-04-08 | 烟台市佶楷矿山设备科技有限公司 | Method for manufacturing non-metal long carrier roller |
| CN115214041A (en) * | 2022-04-29 | 2022-10-21 | 江苏永顺新材料科技有限公司 | Environment-friendly emission-free melt co-extrusion granulation production process and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109456563B (en) | Special material for UHMWPE alloy compatibilization toughening modified polypropylene corrugated pipe and preparation method thereof | |
| CN113337026A (en) | Preparation process of corrosion-resistant PE drain pipe | |
| CN104961976B (en) | Improved polyalkene DRPO steel modeling enhancing winding draining blow-off pipe | |
| CN102518885B (en) | Material saving high rigidity plastic double-wall corrugated pipe and preparation method | |
| CN102002198A (en) | Titanate coupling agent modified polyvinyl chloride pipe material and manufacturing method thereof | |
| CN103360656A (en) | Regenerated polyethylene composition and preparation method thereof | |
| CN112210146B (en) | Low-sag carbon black master batch and preparation method thereof | |
| CN107200919A (en) | A kind of injection grade micro-foaming polypropylene composite material and preparation method thereof | |
| CN109401045B (en) | Special material for high-performance functionalized alloy modified polypropylene corrugated pipe and preparation method thereof | |
| CN107540916A (en) | A kind of PE tubing for municipal drainage and preparation method thereof | |
| CN105061902A (en) | Activated carbon fiber modified polypropylene composite material and preparation method thereof | |
| CN113527793A (en) | Production method of HDPE double-wall corrugated pipe | |
| CN112210158A (en) | EVA (ethylene-vinyl acetate copolymer) antistatic flame-retardant waterproof board for tunnel | |
| CN114790309B (en) | Polyolefin composite material, preparation method thereof, floating body and photovoltaic bracket | |
| CN108929477B (en) | Color-change-resistant high-strength polyethylene pipe and preparation method thereof | |
| CN111186153A (en) | PE plastic pipeline manufacturing process | |
| CN113388192B (en) | High-toughness low-temperature-resistant high-gloss regenerated PP modified material and preparation method thereof | |
| CN111440398B (en) | Special material for ion-crosslinked polyvinyl chloride protection tube | |
| CN113845709A (en) | Anti-sagging modified high-density polyethylene water supply pipe and preparation method thereof | |
| CN107141561A (en) | A kind of high-tough fracture-resistant PE tubing | |
| CN109096628B (en) | Cold-resistant and aging-resistant plastic pipe and preparation method thereof | |
| CN112063031A (en) | HDPE steel strip spiral pipe and preparation method thereof | |
| CN107987353B (en) | Floor heating pipe with low linear expansion coefficient and preparation method thereof | |
| CN107501716B (en) | Polypropylene filling master batch prepared from polypropylene reclaimed material and preparation method thereof | |
| CN104788783A (en) | Thin-wall high-strength internal inlay type drip irrigation tape and high-speed production method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210903 |
|
| RJ01 | Rejection of invention patent application after publication |