CN103568240B - A kind of polyethylene pipe workpiece for water supply extruding forming method - Google Patents

A kind of polyethylene pipe workpiece for water supply extruding forming method Download PDF

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CN103568240B
CN103568240B CN201310298314.XA CN201310298314A CN103568240B CN 103568240 B CN103568240 B CN 103568240B CN 201310298314 A CN201310298314 A CN 201310298314A CN 103568240 B CN103568240 B CN 103568240B
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antioxidant
water supply
polyethylene pipe
pipe workpiece
finished product
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CN103568240A (en
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乐少兵
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yangzhou juye wear resistant material co Ltd
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yangzhou juye wear resistant material co Ltd
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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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • 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
    • 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • 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
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • 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
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/13—Phenols; Phenolates
    • C08K5/134—Phenols containing ester groups
    • C08K5/1345—Carboxylic esters of phenolcarboxylic acids
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92923—Calibration, after-treatment or cooling zone
    • 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
    • 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
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a kind of polyethylene pipe workpiece for water supply extruding forming method: high-density polyethylene resin and black master batch carry out vacuumizing process by (1), using high-speed mixer to carry out high-speed stirring after vacuumizing process is mixed even, and the moisture in the material mixed is below 0.4%; (2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 110-130 DEG C; (3) cool, draw; (4) coding, cutting, polishing, detection, the product be up to the standards and polyethylene pipe workpiece for water supply.Extruded velocity of the present invention is fast, and production efficiency is high, and obtained tubing wearability improves, and ageing-resistant performance is good, and service life extends, and production cost is low.

Description

A kind of polyethylene pipe workpiece for water supply extruding forming method
Technical field
The present invention relates to a kind of tube extrusion forming method, be specifically related to a kind of polyethylene pipe workpiece for water supply extruding forming method.
Background technology
In the world, polyethylene pipe has employed 50 years as pressure pipeline.Numerous country is applied in the pipeline of water delivery, delivery of fuel gas.In China, since China State Bureau of Quality and Technical Supervision, on November 21st, 2000 is issued, and after " feedwater polyethylene (PE) tubing " national standard (GB/T13663-2000), has promoted production and the application of domestic polyethylene water-feeding pipes.But existing feedwater polyethylene pipe, the particle diameter of black agglomerate is large, and bad dispersibility, tube surfaces smoothness is poor, and the undispresed carbon black agglomerate be present in tube wall may cause pressure pipeline to occur too early fracture phenomena.Therefore, a kind of new polyethylene pipe workpiece for water supply is needed.
Summary of the invention
The object of this invention is to provide a kind of polyethylene pipe workpiece for water supply extruding forming method, extruded velocity of the present invention is fast, and production efficiency is high, and obtained tubing wearability improves, and ageing-resistant performance is good, and service life extends, and production cost is low.
The object of the invention is to be achieved through the following technical solutions, a kind of polyethylene pipe workpiece for water supply extruding forming method, comprises the following steps:
(1) high-density polyethylene resin and black master batch are carried out vacuumizing process, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 110-130 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 10-30 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
Preferably, the mass ratio of described polyethylene, black masterbatch and antioxidant is 90-95:9.8-4.5:0.2-0.5.
Preferably, the speed of mainshaft of described high-speed mixer is 430-860rpm.
Preferably, described antioxidant is the mixture of antioxidant 1076 or antioxidant 1010 or antioxidant 1076 and antioxidant 1010.
Preferably, the particle diameter of described black masterbatch is 10-20nm.
Compared with prior art, the present invention has following beneficial effect: the first, and high density polyethylene (HDPE) hardness, hot strength and creep properties are good; Wearability, electrical insulating property, toughness and cold resistance are all better; Chemical stability is good, at ambient temperature, is insoluble to any organic solvent, the corrosion of acid and alkali resistance and various salt; The permeability of film to steam and air is little, water imbibition is low.Second, ageing-resistant performance is excellent, add in high-density polyethylene resin antioxidant 1010,1076 and the carbon black of 10-20nm to improve the resistance to ag(e)ing of high-density polyethylene resin, antioxidant 1010,1076 and resin compatible good, heat resistanceheat resistant oxygen Be very effective, toxicity is extremely low, can be used for screen packaging material; The particle diameter of black agglomerate is little, good dispersion, and tube surfaces smoothness is excellent.3rd, the improvement of production technology: by the shaping reactive extrusion molding be improved in extrusion molding new technology of traditional Single screw extrusion, to the improvement of existing extrusion equipment, extrusion die adopts tubing die, add the moment of torsion of gear wheel, cooling section adopts wear-resistant oil cooled mode to carry out cooling and shaping to goods, thus ensures quality of item, enhances productivity.
Detailed description of the invention
Embodiment 1
A kind of polyethylene pipe workpiece for water supply extruding forming method, is characterized in that, comprise the following steps:
(1) high-density polyethylene resin and black master batch are carried out vacuumizing process, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 110-130 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 10-30 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
The mass ratio of polyethylene, black masterbatch and antioxidant is 90-95:9.8-4.5:0.2-0.5.
The speed of mainshaft of high-speed mixer is 430-860rpm.
Antioxidant is the mixture of antioxidant 1076 or antioxidant 1010 or antioxidant 1076 and antioxidant 1010.
The particle diameter of black masterbatch is 10-20nm.
Embodiment 2
A kind of polyethylene pipe workpiece for water supply extruding forming method, comprises the following steps:
(1) carried out vacuumizing process by high-density polyethylene resin, black masterbatch and antioxidant 1076, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant; The mass ratio of polyethylene, black masterbatch and antioxidant is 90:9.8:0.2, and the speed of mainshaft of high-speed mixer is 430rpm, and the particle diameter of black masterbatch is 20nm;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 110 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 10 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
Embodiment 3
A kind of polyethylene pipe workpiece for water supply extruding forming method, comprises the following steps:
(1) high-density polyethylene resin, black masterbatch and antioxidant 1010 are carried out vacuumizing process, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant; The mass ratio of polyethylene, black masterbatch and antioxidant is 93:6.7:0.3, and the speed of mainshaft of high-speed mixer is 615rpm, and the particle diameter of black masterbatch is 15nm;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 120 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 20 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
Embodiment 3
A kind of polyethylene pipe workpiece for water supply extruding forming method, comprises the following steps:
(1) high-density polyethylene resin, black masterbatch and antioxidant are carried out vacuumizing process, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant; The mass ratio of polyethylene, black masterbatch and antioxidant is 95:4.5:0.5, and the speed of mainshaft of high-speed mixer is the mixture of 860rpm, antioxidant antioxidant 1076 and antioxidant 1010, and the particle diameter of black masterbatch is 10nm;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 130 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 30 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
High density polyethylene (HDPE) hardness, hot strength and creep properties are good; Wearability, electrical insulating property, toughness and cold resistance are all better; Chemical stability is good, at ambient temperature, is insoluble to any organic solvent, the corrosion of acid and alkali resistance and various salt; The permeability of film to steam and air is little, water imbibition is low.
The tubing ageing-resistant performance that the present invention obtains is excellent, add in high-density polyethylene resin antioxidant 1010,1076 and the carbon black of 10-20nm to improve the resistance to ag(e)ing of high-density polyethylene resin, antioxidant 1010,1076 and resin compatible good, heat resistanceheat resistant oxygen Be very effective, toxicity is extremely low, can be used for screen packaging material; The particle diameter of black agglomerate is little, good dispersion, and tube surfaces smoothness is excellent.
The present invention is by the shaping reactive extrusion molding be improved in extrusion molding new technology of traditional Single screw extrusion, to the improvement of existing extrusion equipment, extrusion die adopts tubing die, add the moment of torsion of gear wheel, cooling section adopts wear-resistant oil cooled mode to carry out cooling and shaping to goods, thus guarantee quality of item, enhance productivity.

Claims (2)

1. a polyethylene pipe workpiece for water supply extruding forming method, is characterized in that, comprises the following steps:
(1) high-density polyethylene resin and black master batch are carried out vacuumizing process, use high-speed mixer to carry out high-speed stirring after vacuumizing process and be mixed even, the moisture in the material mixed is below 0.4%; Described black master batch comprises black masterbatch and antioxidant; The mass ratio of described polyethylene, black masterbatch and antioxidant is 90-95:9.8-4.5:0.2-0.5; The speed of mainshaft of described high-speed mixer is 430-860rpm; The particle diameter of described black masterbatch is 10-20nm;
(2) material mixed is joined screw extruder barrel, under screw rod turning effort, material is fed forward to feeding section by material tube inner wall and the effect of screw surface fricting shearing, compressed, melting, homogenization process, material progressively becomes high viscoelastic body from powdery solid, the die extrusion of high viscoelastic body on screw extruder head, obtains the tubing consistent with Oral incision, and extrusion temperature is 110-130 DEG C;
(3) carry out cooling to the tubing water extruded hardening and shape, and drawn by product while cooling continuous uniform, described chilling temperature is 10-30 DEG C;
(4) coding is carried out to cooled product, cutting obtains semi-finished product, semi-finished product are detected, detects after qualified carrying out is polished and obtain finished product, finished product is detected, the product be up to the standards and polyethylene pipe workpiece for water supply.
2. polyethylene pipe workpiece for water supply extruding forming method according to claim 1, is characterized in that, described antioxidant is the mixture of antioxidant 1076 or antioxidant 1010 or antioxidant 1076 and antioxidant 1010.
CN201310298314.XA 2013-07-17 2013-07-17 A kind of polyethylene pipe workpiece for water supply extruding forming method Active CN103568240B (en)

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CN104004257B (en) * 2014-06-12 2016-10-05 山东国塑科技实业有限公司 Modified with ultrahigh molecular weight polyethylene Antiwear composite pipe material and preparation method thereof
CN104760261B (en) * 2015-03-25 2017-08-25 山东华信塑胶股份有限公司 A kind of preparation technology of PE super large calibers thick-wall tube
CN107286434A (en) * 2017-07-20 2017-10-24 安徽杰蓝特新材料有限公司 A kind of hyper-dispersant surface activation process nanometer carbon black strengthens HDPE water-feeding pipes
CN107337839A (en) * 2017-07-20 2017-11-10 安徽杰蓝特新材料有限公司 A kind of surface activation process nanometer carbon black strengthens HDPE water-feeding pipes forming methods
CN109822853B (en) * 2019-03-25 2021-01-12 许晓漫 HDPE feed pipe processing equipment
CN111034690B (en) * 2019-12-03 2021-12-17 安徽贵吉户外用品股份有限公司 Triangular waterproof antirust diddle-net head and production process thereof
CN112625323A (en) * 2020-11-30 2021-04-09 江西天丰建设集团管业科技有限公司 Alloy material for manufacturing polyethylene pipeline for water supply and preparation method
CN112538202A (en) * 2020-12-07 2021-03-23 科思茂(江苏)管业有限公司 Polyethylene pipe for water supply and extrusion molding method thereof

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CN101121794A (en) * 2006-08-11 2008-02-13 上海国嘉塑化有限公司 Black master batch of polythene pipes mixing special material for feeding water and preparation method thereof
CN101539222A (en) * 2008-03-22 2009-09-23 施雪标 Multipurpose HDPE-A tubular product
CN102093616A (en) * 2010-12-20 2011-06-15 昆明渝兴鹏塑料制品有限公司 Method for preparing plastic pipes by recovering and recycling waste plastic woven bags
CN102532665A (en) * 2012-01-05 2012-07-04 常熟科盈复合材料有限公司 Modified strengthened and toughened polyethylene solid-wall pipe and preparation method thereof
CN103059389A (en) * 2013-02-03 2013-04-24 张芝莲 Environment-friendly flame-retardant antistatic polyethylene pipeline

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101121794A (en) * 2006-08-11 2008-02-13 上海国嘉塑化有限公司 Black master batch of polythene pipes mixing special material for feeding water and preparation method thereof
CN101539222A (en) * 2008-03-22 2009-09-23 施雪标 Multipurpose HDPE-A tubular product
CN102093616A (en) * 2010-12-20 2011-06-15 昆明渝兴鹏塑料制品有限公司 Method for preparing plastic pipes by recovering and recycling waste plastic woven bags
CN102532665A (en) * 2012-01-05 2012-07-04 常熟科盈复合材料有限公司 Modified strengthened and toughened polyethylene solid-wall pipe and preparation method thereof
CN103059389A (en) * 2013-02-03 2013-04-24 张芝莲 Environment-friendly flame-retardant antistatic polyethylene pipeline

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