CN107216604A - A kind of preparation method of high strength pipe material - Google Patents

A kind of preparation method of high strength pipe material Download PDF

Info

Publication number
CN107216604A
CN107216604A CN201710593335.2A CN201710593335A CN107216604A CN 107216604 A CN107216604 A CN 107216604A CN 201710593335 A CN201710593335 A CN 201710593335A CN 107216604 A CN107216604 A CN 107216604A
Authority
CN
China
Prior art keywords
parts
preparation
high strength
pipe material
strength 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.)
Withdrawn
Application number
CN201710593335.2A
Other languages
Chinese (zh)
Inventor
殷世尧
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hefei Anli Electric Power Engineering Co Ltd
Original Assignee
Hefei Anli Electric Power Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hefei Anli Electric Power Engineering Co Ltd filed Critical Hefei Anli Electric Power Engineering Co Ltd
Priority to CN201710593335.2A priority Critical patent/CN107216604A/en
Publication of CN107216604A publication Critical patent/CN107216604A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L61/00Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
    • C08L61/20Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
    • C08L61/22Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
    • C08L61/24Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with urea or thiourea
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00Use of inorganic substances as compounding ingredients
    • C08K3/18Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/24Acids; Salts thereof
    • C08K3/26Carbonates; Bicarbonates
    • C08K2003/265Calcium, strontium or barium carbonate
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00Specific properties of additives
    • C08K2201/002Physical properties
    • C08K2201/003Additives being defined by their diameter
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00Applications
    • C08L2203/18Applications used for pipes
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/02Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • CCHEMISTRY; METALLURGY
    • C08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00Polymer mixtures characterised by other features
    • C08L2205/03Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

A kind of preparation method of high strength pipe material, including following preparation process:A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, glass fibre, polytetrafluoroethylene (PTFE) and furane resins mix put into agitator tank be heated to melting, obtain mixture one;B, initiator, catalyst be dissolved in organic solvent, obtain mixed liquor;C, mixture one added in high-speed mixer, then mixed liquor, polysiloxanes are added in high-speed mixer, grafting PE, filler, lubricant and processing aid are added after being well mixed, material one is mixed to get;D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can.The pipeline material that the present invention is prepared has high, the excellent in cushion effect advantage of tensile strength.

Description

A kind of preparation method of high strength pipe material
Technical field
The invention belongs to technical field of polymer materials, and in particular to a kind of preparation method of high strength pipe material.
Background technology
The pipeline that common high polymer material is made includes polyethylene pipe, polyvinyl chloride pipeline, chlorinated polyvinyl chloride pipe Road, crosslinked polypropylene pipeline etc..Macromolecular material pipe is compared with conventional metals pipeline, with from heavy and light, corrosion-resistant, resistance to pressure Spend high, safe and healthy, small flow resistance, save the energy, save metal, better people's living environment, it is service life length, easy for installation etc. Feature, receives the favor of pipeline engineering circle and occupies considerable position, forms a kind of irresistible development trend.
The pipeline that high polymer material is made has been widely used in urban water supply, municipal drainage, building water supply, built both at home and abroad Build draining, hot water supply, heat supply heating, building rain-water drainage, gas, agricultural drainage and irrigation, chemical industry fluid conveying and electric wire, The fields such as cable sheath tube.
The intensity of the high polymer material of conventional pipeline is relatively low, it is therefore necessary to improve the machine of pipeline high polymer material Tool intensity.
The content of the invention
It is an object of the invention to provide the pipeline material that a kind of preparation method of high strength pipe material, the present invention are prepared The common tensile strength for improving pipeline material of the brombutyl and furane resins added in material, impact property and Hardness, effectively meets the use of pipeline material, with resistance to compression, anti-folding, stretch-proof advantage, available for various pipeline materials Application.
The invention provides following technical scheme:
A kind of preparation method of high strength pipe material, including following preparation process:
A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, Glass fibre, polytetrafluoroethylene (PTFE) and furane resins mixing are put into agitator tank, and melting is heated at 450-650 DEG C, is obtained Mixture one;
B, initiator, catalyst be dissolved in organic solvent, stir 30-40min, obtain mixed liquor;
C, mixture one added in high-speed mixer, then add mixed liquor, polysiloxanes in high-speed mixer, Mix 10-20min under rotating speed 200-300rpm, then improve rotating speed to 500-800rpm, added after mixing 25-40min grafting PE, Filler, lubricant and processing aid, 30-50min is mixed under 300-500rpm rotating speed, obtains material one;
D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can obtain finished product.
It is preferred that, the pipeline material includes the raw material of following parts by weight:22-34 parts of Lauxite, poly- fulminuric acid 18-23 parts of ester, 12-15 parts of polyisobutene, 8-11 parts of brombutyl, 13-17 parts of dicyclohexyl phthalate, glass fibers 21-28 parts of dimension, 10-14 parts of polytetrafluoroethylene (PTFE), 12-18 parts of furane resins, 8-13 parts of initiator, 12-14 parts of catalyst, You Jirong 20-30 parts of agent, 13-16 parts of polysiloxanes, PE28-43 parts of grafting, 22-36 parts of filler, 10-14 parts of lubricant and processing aid 8- 16 parts.
It is preferred that, the organic solvent of the step b is acetone or dimethylbenzene.
It is preferred that, the grafting PE of step c grafted monomers is in maleic anhydride, epoxy, acrylic acid and siloxanes Any, grafting rate is 4-8%.
It is preferred that, the filler of the step c for any of talcum powder, graphite, titanium oxide, calcium carbonate and wollastonite or A variety of mixing, particle diameter is 15-35 μm.
It is preferred that, the lubricant of the step c is stearic acid or Tissuemat E.
It is preferred that, the processing aid of the step c is fluorine-containing processing aid, and Main Ingredients and Appearance is vinylidene or inclined fluorine second Alkene-hexafluoropropylene copolymer.
It is preferred that, area's temperature of the double screw extruder of the step d is 160-180 DEG C, and two area's temperature are 190-200 DEG C, three area's temperature are 205-215 DEG C, and four area's temperature are 220-235 DEG C, and double screw extruder rotating speed is 250-280r/min.
It is preferred that, it is low in removing solvent and course of reaction by vacuumizing in the twin screw extrusion of the step d Lecular by-products.
The beneficial effects of the invention are as follows:
The brombutyl and furane resins added in the pipeline material that the present invention is prepared jointly improve pipe Tensile strength, impact property and the hardness of road material, effectively meet the use of pipeline material, with resistance to compression, anti-folding, The advantage of stretch-proof, the application available for various pipeline materials.
The cost of raw material of the present invention is cheap, wide material sources, the effective easy acquisition of material, and the system of the present invention Preparation Method is simple, and easy to operate, preparation flow is short, is adapted to industrialization mass production.
There is no the generation of secondary pollution in the preparation process of the present invention, the utilization rate of raw material is high so that present invention tool There are certain energy-saving and emission-reduction, the meaning of environmental protection.
Embodiment
Embodiment 1
A kind of preparation method of high strength pipe material, including following preparation process:
A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, Glass fibre, polytetrafluoroethylene (PTFE) and furane resins mixing are put into agitator tank, and melting is heated at 550 DEG C, is mixed Thing one;
B, initiator, catalyst be dissolved in organic solvent, stir 40min, obtain mixed liquor;
C, mixture one added in high-speed mixer, then add mixed liquor, polysiloxanes in high-speed mixer, Mix 20min under rotating speed 300rpm, then improve rotating speed to 800rpm, added after mixing 25min grafting PE, filler, lubricant and Processing aid, 50min is mixed under 300rpm rotating speed, obtains material one;
D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can obtain finished product.
Pipeline material includes the raw material of following parts by weight:34 parts of Lauxite, 23 parts of PIC, polyisobutene 12 parts, 11 parts of brombutyl, 17 parts of dicyclohexyl phthalate, 21 parts of glass fibre, 14 parts of polytetrafluoroethylene (PTFE), furans 18 parts of resin, 8 parts of initiator, 14 parts of catalyst, 30 parts of organic solvent, 16 parts of polysiloxanes, grafting PE28 parts, 22 parts of filler, 16 parts of 10 parts of lubricant and processing aid.
Step b organic solvent is dimethylbenzene.
Step c grafting PE grafted monomers are siloxanes, and grafting rate is 8%.
Step c filler is the mixing of talcum powder, graphite, titanium oxide, calcium carbonate and wollastonite, and particle diameter is 35 μm.
Step c lubricant is Tissuemat E.
Step c processing aid is fluorine-containing processing aid, and Main Ingredients and Appearance is vinylidene.
One area's temperature of step d double screw extruder is 180 DEG C, and two area's temperature are 200 DEG C, and three area's temperature are 205 DEG C, Four area's temperature are 235 DEG C, and double screw extruder rotating speed is 280r/min.
By vacuumizing the low molecule accessory substance removed in solvent and course of reaction in step d twin screw extrusion.
Embodiment 2
A kind of preparation method of high strength pipe material, including following preparation process:
A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, Glass fibre, polytetrafluoroethylene (PTFE) and furane resins mixing are put into agitator tank, and melting is heated at 650 DEG C, is mixed Thing one;
B, initiator, catalyst be dissolved in organic solvent, stir 30min, obtain mixed liquor;
C, mixture one added in high-speed mixer, then add mixed liquor, polysiloxanes in high-speed mixer, Mix 20min under rotating speed 200rpm, then improve rotating speed to 800rpm, added after mixing 40min grafting PE, filler, lubricant and Processing aid, 30min is mixed under 500rpm rotating speed, obtains material one;
D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can obtain finished product.
Pipeline material includes the raw material of following parts by weight:34 parts of Lauxite, 18 parts of PIC, polyisobutene 15 parts, 8 parts of brombutyl, 17 parts of dicyclohexyl phthalate, 28 parts of glass fibre, 10 parts of polytetrafluoroethylene (PTFE), furans 12 parts of resin, 8 parts of initiator, 14 parts of catalyst, 20 parts of organic solvent, 16 parts of polysiloxanes, grafting PE43 parts, 36 parts of filler, 8 parts of 10 parts of lubricant and processing aid.
Step b organic solvent is acetone.
Step c grafting PE grafted monomers are maleic anhydride, and grafting rate is 8%.
Step c filler is the mixing of talcum powder, graphite, titanium oxide, calcium carbonate and wollastonite, and particle diameter is 35 μm.
Step c lubricant is stearic acid.
Step c processing aid is fluorine-containing processing aid, and Main Ingredients and Appearance is vinylidene fluoride-hexafluoropropylene copolymer.
One area's temperature of step d double screw extruder is 160 DEG C, and two area's temperature are 200 DEG C, and three area's temperature are 215 DEG C, Four area's temperature are 220 DEG C, and double screw extruder rotating speed is 280r/min.
By vacuumizing the low molecule accessory substance removed in solvent and course of reaction in step d twin screw extrusion.
Embodiment 3
A kind of preparation method of high strength pipe material, including following preparation process:
A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, Glass fibre, polytetrafluoroethylene (PTFE) and furane resins mixing are put into agitator tank, and melting is heated at 650 DEG C, is mixed Thing one;
B, initiator, catalyst be dissolved in organic solvent, stir 40min, obtain mixed liquor;
C, mixture one added in high-speed mixer, then add mixed liquor, polysiloxanes in high-speed mixer, Mix 10min under rotating speed 300rpm, then improve rotating speed to 700rpm, added after mixing 40min grafting PE, filler, lubricant and Processing aid, 35min is mixed under 500rpm rotating speed, obtains material one;
D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can obtain finished product.
Pipeline material includes the raw material of following parts by weight:34 parts of Lauxite, 23 parts of PIC, polyisobutene 12 parts, 8 parts of brombutyl, 17 parts of dicyclohexyl phthalate, 21 parts of glass fibre, 10 parts of polytetrafluoroethylene (PTFE), furans 12 parts of resin, 13 parts of initiator, 14 parts of catalyst, 20 parts of organic solvent, 16 parts of polysiloxanes, grafting PE28 parts, 36 parts of filler, 16 parts of 14 parts of lubricant and processing aid.
Step b organic solvent is dimethylbenzene.
Step c grafting PE grafted monomers are acrylic acid, and grafting rate is 8%.
Step c filler is the mixing of talcum powder, graphite, titanium oxide, calcium carbonate and wollastonite, and particle diameter is 15 μm.
Step c lubricant is Tissuemat E.
Step c processing aid is fluorine-containing processing aid, and Main Ingredients and Appearance is that vinylidene or biasfluoroethylene-hexafluoropropylene are common Polymers.
One area's temperature of step d double screw extruder is 160 DEG C, and two area's temperature are 200 DEG C, and three area's temperature are 215 DEG C, Four area's temperature are 235 DEG C, and double screw extruder rotating speed is 280r/min.
By vacuumizing the low molecule accessory substance removed in solvent and course of reaction in step d twin screw extrusion.
Material prepared by embodiment 1, embodiment 2 and embodiment 3 is detected, the data such as following table are obtained:
Table one:
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (9)

1. a kind of preparation method of high strength pipe material, it is characterised in that including following preparation process:
A, by Lauxite, PIC, polyisobutene, brombutyl, dicyclohexyl phthalate, glass Fiber, polytetrafluoroethylene (PTFE) and furane resins mixing are put into agitator tank, and melting is heated at 450-650 DEG C, is mixed Thing one;
B, initiator, catalyst be dissolved in organic solvent, stir 30-40min, obtain mixed liquor;
C, mixture one added in high-speed mixer, then added mixed liquor, polysiloxanes in high-speed mixer, in rotating speed 10-20min is mixed under 200-300rpm, then improves rotating speed to 500-800rpm, mixes and grafting PE is added after 25-40min, is filled out Material, lubricant and processing aid, mix 30-50min under 300-500rpm rotating speed, obtain material one;
D, material one extruded with dual-screw-stem machine extruder, then through comminutor granulating and forming, you can obtain finished product.
2. a kind of preparation method of high strength pipe material according to claim 1, it is characterised in that the pipeline material Include the raw material of following parts by weight:22-34 parts of Lauxite, 18-23 parts of PIC, 12-15 parts of polyisobutene, bromine Change 8-11 parts of butyl rubber, 13-17 parts of dicyclohexyl phthalate, 21-28 parts of glass fibre, 10-14 parts of polytetrafluoroethylene (PTFE), 12-18 parts of furane resins, 8-13 parts of initiator, 12-14 parts of catalyst, 20-30 parts of organic solvent, 13-16 parts of polysiloxanes, connect 8-16 parts of PE28-43 parts of branch, 22-36 parts of filler, 10-14 parts of lubricant and processing aid.
3. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step b's Organic solvent is acetone or dimethylbenzene.
4. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step c's It is any of maleic anhydride, epoxy, acrylic acid and siloxanes to be grafted PE grafted monomers, and grafting rate is 4-8%.
5. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step c's Filler is any of talcum powder, graphite, titanium oxide, calcium carbonate and wollastonite or a variety of mixing, and particle diameter is 15-35 μm.
6. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step c's Lubricant is stearic acid or Tissuemat E.
7. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step c's Processing aid is fluorine-containing processing aid, and Main Ingredients and Appearance is vinylidene or vinylidene fluoride-hexafluoropropylene copolymer.
8. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step d's One area's temperature of double screw extruder is 160-180 DEG C, and two area's temperature are 190-200 DEG C, and three area's temperature are 205-215 DEG C, four Area's temperature is 220-235 DEG C, and double screw extruder rotating speed is 250-280r/min.
9. the preparation method of a kind of high strength pipe material according to claim 1, it is characterised in that the step d's By vacuumizing the low molecule accessory substance removed in solvent and course of reaction in twin screw extrusion.
CN201710593335.2A 2017-07-20 2017-07-20 A kind of preparation method of high strength pipe material Withdrawn CN107216604A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710593335.2A CN107216604A (en) 2017-07-20 2017-07-20 A kind of preparation method of high strength pipe material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710593335.2A CN107216604A (en) 2017-07-20 2017-07-20 A kind of preparation method of high strength pipe material

Publications (1)

Publication Number Publication Date
CN107216604A true CN107216604A (en) 2017-09-29

Family

ID=59952821

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710593335.2A Withdrawn CN107216604A (en) 2017-07-20 2017-07-20 A kind of preparation method of high strength pipe material

Country Status (1)

Country Link
CN (1) CN107216604A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2385024Y (en) * 1999-06-25 2000-06-28 邱则有 Filmed exhaust pipeline
CN102329585A (en) * 2010-07-12 2012-01-25 上海海鹰粘接科技有限公司 Leak-blocking adhesive and preparation method thereof
CN103013022A (en) * 2012-12-28 2013-04-03 四川鑫成新材料科技有限公司 High-wear-resistance modified polyolefin pipeline material and preparation method thereof
CN105001637A (en) * 2015-08-17 2015-10-28 苏州凯欧曼新材料科技有限公司 High polymer material for pipeline and preparation method of high polymer material

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2385024Y (en) * 1999-06-25 2000-06-28 邱则有 Filmed exhaust pipeline
CN102329585A (en) * 2010-07-12 2012-01-25 上海海鹰粘接科技有限公司 Leak-blocking adhesive and preparation method thereof
CN103013022A (en) * 2012-12-28 2013-04-03 四川鑫成新材料科技有限公司 High-wear-resistance modified polyolefin pipeline material and preparation method thereof
CN105001637A (en) * 2015-08-17 2015-10-28 苏州凯欧曼新材料科技有限公司 High polymer material for pipeline and preparation method of high polymer material

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
潘才元: "《高分子化学》", 31 July 2012, 中国科学技术大学出版社 *
胡隆伟 等: "《紧固件材料手册》", 31 December 2014, 中国宇航出版社 *
赵敏主编: "《塑料毒性与安全实用手册》", 31 October 2004, 化学工业出版社 *
韩长日 等: "《精细有机化工产品生产技术手册 上》", 30 June 2010, 中国石化出版社 *
黄伯云 等: "《高性能炭/炭航空制动材料的制备技术》", 30 June 2007, 湖南科学技术出版社 *

Similar Documents

Publication Publication Date Title
CN104151703B (en) A kind of MPP power pipe with high-fire resistance energy
CN109181074A (en) A kind of preparation process of the antistatic modified hollow spiral tube of high rigidity
CN101532591A (en) UPVC pipe material/element and preparation method thereof
CN104284912A (en) Polyethylene with controlled wax content, chlorinated polyethylene thereof, and molded product prepared therefrom
CN104629221B (en) Polyvinyl chloride (PVC) lining pipe
CN109354752A (en) Polyvinyl piping materials
CN105295255A (en) Graphene oxide and glass-fiber reinforced polyvinyl chloride composite material and preparation method thereof
CN107446217A (en) A kind of Pressure-tolerant polyethylene tubular product
CN106832698A (en) A kind of chlorinated polyvinyl chloride tubes composition and tubing preparation method
CN105423003A (en) Polyfluoroalkoxy pipe and preparation method thereof
CN105001637A (en) High polymer material for pipeline and preparation method of high polymer material
CN110079030A (en) Environment friendly and pollution-free industrial chlorinated polyvinyl chloride tubes of one kind and its preparation method and application
CN107216604A (en) A kind of preparation method of high strength pipe material
CN104974394B (en) Polyethylene resin composition and preparation method thereof
CN108546368A (en) A kind of compound system waterproof roll and preparation method thereof
CN109384988A (en) A kind of preparation process of the high tenacity PE hollow spiral tube modified based on red mud
CN112831135A (en) High-impact-resistance PVC pipe material and preparation method and application thereof
CN111171473B (en) Large-diameter PVC-U water supply accessory injection molding granules and preparation method thereof
CN106496847A (en) A kind of PVC plastic film capicitor for prestressed concrete
CN105838005B (en) A kind of composite plastic pipe and its preparation technology
CN105001356A (en) Chlorinated polyethylene for PVC/HDPE solubilizing and preparation method and application thereof
CN104945542B (en) A kind of method of situ-formed graft chlorination
CN108948556A (en) A kind of plastic flexible pipe preparation method for water supply and sewage work
CN106916361A (en) Regenerated polythene composition and preparation method thereof
CN106589971A (en) Hydrotalcite grafted polyvinyl chloride modified high-performance composite pipe and preparation 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
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20170929