CN106832513A - A kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof - Google Patents
A kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof Download PDFInfo
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- CN106832513A CN106832513A CN201611260696.7A CN201611260696A CN106832513A CN 106832513 A CN106832513 A CN 106832513A CN 201611260696 A CN201611260696 A CN 201611260696A CN 106832513 A CN106832513 A CN 106832513A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- 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
- B29C48/92—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
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- 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
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- 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
- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- 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
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- 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 present invention relates to a kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof, belong to engineering plastics technical field.Ultrahigh molecular weight polyethylene tubing of the present invention, is mainly made up of the raw material of following mass percent：Polyethylene 92 96%, macromolecule wax 1 2%, modified montmorillonoid 2 3.5%, modified Nano molybdenum bisuphide 0.5 1%, Graphene 0.2 0.8%, age resister 0.1 0.3%.Ultrahigh molecular weight polyethylene tubing of the present invention significantly improves the melt fluidity of ultra-high molecular weight polyethylene, and piecemeal extrusion and assembling, significantly improves the mechanical property and production, conevying efficiency of ultrahigh molecular weight polyethylene tubing.
Description
Technical field
The present invention relates to a kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof, belong to engineering plastics technical field.
Background technology
Ultrahigh molecular weight polyethylene tubing gradually replaces other traditional materials with its excellent mechanical property and self-lubricating property
The tubing of material is widely used in the row such as mineral conveying, irrigation, municipal drainage, oil and mine and safety for tunnel engineering escape
Industry.But because the melt fluidity of ultra-high molecular weight polyethylene is poor, extrusion molding is difficult, especially heavy caliber thick wall tubing is crowded
Go out, extruded velocity is the bottleneck for restricting production efficiency.
The content of the invention
It is an object of the invention to provide a kind of ultrahigh molecular weight polyethylene tubing, ensureing with excellent mechanical performances
The melt fluidity for solving ultra-high molecular weight polyethylene simultaneously is poor, the difficult technical problem of extrusion molding.
Second purpose of the invention is to provide a kind of preparation method of ultrahigh molecular weight polyethylene tubing.
To achieve the above object, the technical scheme is that：
A kind of ultrahigh molecular weight polyethylene tubing, is mainly made up of the raw material of following mass percent：Polyethylene 92-
96%, macromolecule wax 1-2%, modified montmorillonoid 2-3.5%, modified Nano molybdenum bisuphide 0.5-1%, Graphene 0.2-0.8%,
Age resister 0.1-0.3%.
Also include organic pigment 0.2-0.3% in the ultrahigh molecular weight polyethylene tubing material composition.
The viscosity average molecular weigh of the polyethylene is 250~8,000,000.Molecular weight is 250~8,000,000 superhigh molecular weight polyethylene
Alkene is that tubing is main component, with the property such as excellent impact resistance, wear-resistant, self lubricity, resistant to chemical etching, low temperature resistant
Energy.
The viscosity average molecular weigh of the macromolecule wax is 2000~3000.Macromolecule wax is a kind of polyolefin synthetic wax, and it melts
Melt-viscosity is low, good dispersion, can improve the melt fluidity of ultra-high molecular weight polyethylene.
The modified montmorillonoid is organic modification montmonrillonite.The organic modification montmonrillonite is carbon number more than 16
The montmorillonite of chain alkyl trimethylammonium bromide intercalation modifying.The preferred cetyl trimethylammonium bromide of organic modification montmonrillonite changes
Property montmorillonite or Cetyltrimethylammonium bromide modified montmorillonoid.
The modified Nano molybdenum bisuphide is silane coupler KH570 modified Nano molybdenum bisuphide.
The age resister is compound age resister, specially the compound age resister of hindered phenol/phosphite ester, wherein being obstructed
Phenol is 1: 1 with the mass ratio of phosphite ester.Age resister protection tubing resistance environmental attack, improves ageing-resistant ability.
Modified montmorillonoid is, by the quaternary ammonium salt-modified intercalation nano montmorillonite of long-chain fat race, work to be twined with strand solution
With the melt fluidity of ultra-high molecular weight polyethylene can be obviously improved, and improves the mechanical property of product；Graphene can play super
The macromolecular solution of High molecular weight polyethylene melting extrusion process twines effect, improves extruded velocity；Nano molybdenum disulfide can be reduced greatly
Frictional force between molecule and extruder, while can also improve Mechanical Properties of Products.Above-mentioned three kinds of fillers have synergy, lack
One can not.
The ultrahigh molecular weight polyethylene tubing, in addition to integral extrusion is molded, can be with piecemeal extrusion molding.
The ultrahigh molecular weight polyethylene tubing, is formed by 4~8 pieces of arc joggles, the arc vertically two
Side is respectively equipped with dovetail and dovetail groove for joggle.
The ultrahigh molecular weight polyethylene tubing, can coordinate according to the 1/4-1/8 piping articles of extrusion and be assembled into integral tube
Road, and 2~6 road tight loops are reinforced according to length.
The preparation method of the ultrahigh molecular weight polyethylene tubing, comprises the following steps：
Each raw material is measured by formula to mix, obtain compound；Compound is put into feed bin, 175 DEG C of 1~2h of insulation, after pass through
Screw extruder extrudes into pipe mold, and shunting fusion is molded, and through cooling and shaping, curing molding is obtained final product；It is described be extruded as it is whole
Body is extruded or piecemeal extrusion.
The mixing is to be mixed in high mixer, and the rotating speed of the high mixer is 1000~1500 revs/min.
Time used by the mixing is 2~5 minutes.
The extrusion pressure of the screw extruder is set as 4-12Mpa.
The barrel temperatures set of the screw extruder is 4th area：One 180~190 DEG C of area, two 190~205 DEG C of areas, 3rd area
210~230 DEG C, four 230~250 DEG C of areas；Die temperature is set as 4th area, 230~250 DEG C of an area, two 230~210 DEG C of areas, three
195~210 DEG C of area, four 180 DEG C of areas.
The screw speed of the screw extruder is 15~40 turns/min, and hauling speed is 0.5~10m/min.
The screw extruder mouth mold is made covering of the fan of the both sides with dovetail and dovetail groove according to pipeline actual diameter size.
Ultrahigh molecular weight polyethylene tubing of the present invention, raw material is simple, by long chain alkyl modified montmorillonite, molybdenum bisuphide, stone
Three kinds of filler synergies of black alkene, can be obviously improved the melt fluidity of ultra-high molecular weight polyethylene, substantially increase superelevation point
The mechanical property of sub- weight polyethylene pipe.Ultrahigh molecular weight polyethylene tubing of the present invention can be not only used for entirety, and piecemeal is can be used for again
Extrusion.
The preparation method of ultrahigh molecular weight polyethylene tubing of the present invention, it is mainly characterized by by technical recipe optimization design
Pipeline outward appearance and its die mold desing, procession parameters design, realize heavy caliber ultrahigh molecular weight polyethylene tubing raw material and add
Plus dosage is few, piecemeal quickly extrusion and assembled in situ shaping, production efficiency is improve, convenient transport and transport useful load is big is comprehensive
Synthesis is originally substantially reduced.
Brief description of the drawings
Fig. 1 is arc die orifice schematic diagram of the present invention；
Fig. 2 is arc joggle schematic diagram of the present invention；
Fig. 3 is ultrahigh molecular weight polyethylene tubing schematic diagram of the present invention.
Specific embodiment
The present invention is expanded on further with reference to embodiments, but is not intended to limit present disclosure.
Embodiment 1
Ultrahigh molecular weight polyethylene tubing of the present invention, is made up of the raw material of following mass percent：Molecular weight is 2,500,000
Polyethylene 96%, molecular weight is 2000 macromolecule wax 1%, cetyl trimethylammonium bromide modified montmorillonoid 2%, silane idol
Connection agent KH570 modified Nanos molybdenum bisuphide 0.5%, Graphene 0.2%, pigment 0.2%, hindered phenol is compound anti-with phosphite ester
Aging dose 0.1%.
Ultrahigh molecular weight polyethylene tubing of the present invention is formed by 8 pieces of arc joggles, arc both sides difference vertically
The dovetail and dovetail groove for joggle are provided with, arcuately the axial direction of plate extends and length and arc respectively for dovetail and dovetail groove
The equal length of plate.
The preparation method of ultrahigh molecular weight polyethylene tubing of the present invention, comprises the following steps：
By the polyethylene of super high molecular weight that 96% molecular weight is 2,500,000, the macromolecule wax of 1% molecular weight 2000,
2% cetyl trimethylammonium bromide modified montmorillonoid, 0.5% silane coupler KH570 modified Nanos molybdenum bisuphide,
The compound age resister of 0.2% Graphene, 0.2% pigment, 0.1% hindered phenol and phosphite ester is placed in high mixer and mixes
Close 2 minutes, the rotating speed of high mixer is 1000 revs/min, and mixed material is obtained after mixing；Mixed material is put into feed bin to be heated to
175 DEG C and be incubated 1 hour；The area's temperature of machine barrel four is respectively：180 DEG C, 190 DEG C, 210 DEG C, 230 DEG C；The area's temperature difference of mouth mold four
For：230℃、230℃、195℃、180℃；4MPa extrusion pressures and screw speed as 40 revs/min are set, by said mixture material
The continuous 1/8 arc die orifice through 1000mm bores is extruded in screw extruder, is obtained final product.
As shown in figure 1, blocking arc according to the requirement of actual duct length, arc is docked by dovetail as shown in Figure 2
Dovetail groove mode, inserts from one end successively, forms a complete pipeline, and reinforce 2 road tight loops (as schemed in the outside of pipeline
Shown in 3).
Embodiment 2
Ultrahigh molecular weight polyethylene tubing of the present invention, is made up of the raw material of following mass percent：Molecular weight is 4,500,000
Ultra-high molecular weight polyethylene 93.5%, molecular weight is 2000 macromolecule wax 1.5%, and Cetyltrimethylammonium bromide is modified to be covered
De- soil 3%, silane coupler KH570 modified Nanos molybdenum bisuphide 0.8%, Graphene 0.8%, pigment 0.2%, age resister
0.2%.
Ultrahigh molecular weight polyethylene tubing of the present invention is formed by 4 pieces of arc joggles, arc both sides difference vertically
The dovetail and dovetail groove for joggle are provided with, arcuately the axial direction of plate extends and length and arc respectively for dovetail and dovetail groove
The equal length of plate.
The preparation method of ultrahigh molecular weight polyethylene tubing of the present invention, comprises the following steps：
By polyethylene, the high score that 1.5% molecular weight is 2000 of super high molecular weight that 93.5% molecular weight is 4,500,000
Sub- wax, 3% nano organic montmorillonite, 0.8% silane coupler KH570 modified Nanos molybdenum bisuphide, 0.8% graphite
Alkene, 0.2% pigment, 0.2% age resister are placed in high-speed mixer and mixing 3 minutes, and the rotating speed of high mixer is 1200 revs/min
Clock, obtains mixed material after mixing；Mixed material is put into feed bin to be heated to 175 DEG C and be incubated 1.5 hours；The area of spiro rod machine tube four
Temperature is respectively：185℃、200℃、220℃、240℃；The area's temperature of mouth mold four is respectively：240℃、220℃、200℃、180
℃；8MPa extrusion pressures and screw speed as 30 revs/min are set, said mixture material is continuously passed through in screw extruder
The 1/4 arc die orifice extrusion of 800mm bores.
Arc is blocked according to the requirement of actual duct length, arc dovetail docking dovetail groove mode is pressed into, successively from one
End insertion, forms a complete pipeline, and reinforce 3 road tight loops in the outside of pipeline.
Embodiment 3
Ultrahigh molecular weight polyethylene tubing of the present invention, is made up of the raw material of following mass percent：Molecular weight is 8,000,000
The polyethylene 92% of super high molecular weight, molecular weight is 3000 macromolecule wax 2%, and Cetyltrimethylammonium bromide is modified to cover de-
Soil 3.5%, silane coupler KH570 modified Nanos molybdenum bisuphide 1%, Graphene 0.8%, pigment 0.3%, hindered phenol and phosphorous
The compound age resister 0.3% of acid esters.
Ultrahigh molecular weight polyethylene tubing of the present invention is formed by 6 pieces of arc joggles, arc both sides difference vertically
The dovetail and dovetail groove for joggle are provided with, arcuately the axial direction of plate extends and length and arc respectively for dovetail and dovetail groove
The equal length of plate.
The preparation method of ultrahigh molecular weight polyethylene tubing of the present invention, comprises the following steps：
By polyethylene, the macromolecule that 2% molecular weight is 3000 of super high molecular weight that 92% molecular weight is 8,000,000
Wax, 3.5% Cetyltrimethylammonium bromide modified montmorillonoid, 1% silane coupler KH570 modified Nano curing
The compound age resister of molybdenum, 0.8% Graphene, 0.3% organic pigment, 0.3% hindered phenol and phosphite ester is placed in height
Mix 5 minutes in mixed machine, the rotating speed of high mixer is 1500 revs/min, and mixed material is obtained after mixing；Mixed material is put into material
Storehouse is heated to 175 DEG C and is incubated 2 hours；The setting area's temperature of machine barrel four is respectively：190℃、205℃、230℃、250℃；Mouth mold
Four area's temperature are respectively：250℃、230℃、210℃、180℃；Extrusion pressure as 12MPa is set, screw speed is 20 revs/min,
By said mixture material, the continuous 1/6 arc die orifice through 600mm bores is extruded in screw extruder.
Arc is blocked according to the requirement of actual duct length, arc dovetail docking dovetail groove mode is pressed into, successively from one
End insertion, forms a complete pipeline, and reinforce 6 road tight loops in the outside of pipeline.
Embodiment 4
Ultrahigh molecular weight polyethylene tubing of the present invention, is made up of the raw material of following mass percent：Molecular weight is 4,500,000
Ultra-high molecular weight polyethylene 93.5%, molecular weight is 2000 macromolecule wax 1.5%, and Cetyltrimethylammonium bromide is modified to be covered
De- soil 3%, silane coupler KH570 modified Nanos molybdenum bisuphide 0.8%, Graphene 0.8%, pigment 0.2%, age resister
0.2%.
Ultrahigh molecular weight polyethylene tubing of the present invention is molded by integral extrusion.
The preparation method of ultrahigh molecular weight polyethylene tubing of the present invention, comprises the following steps：
By polyethylene, the high score that 1.5% molecular weight is 2000 of super high molecular weight that 93.5% molecular weight is 4,500,000
Sub- wax, 3% nano organic montmorillonite, 0.8% silane coupler KH570 modified Nanos molybdenum bisuphide, 0.8% graphite
Alkene, 0.2% pigment, 0.2% age resister are placed in high-speed mixer and mixing 3 minutes, and the rotating speed of high mixer is 1200 revs/min
Clock, obtains mixed material after mixing；Mixed material is put into feed bin to be heated to 175 DEG C and be incubated 1.5 hours；The area of spiro rod machine tube four
Temperature is respectively：185℃、200℃、220℃、240℃；The area's temperature of mouth mold four is respectively：240℃、220℃、200℃、180
℃；8MPa extrusion pressures and screw speed as 15 revs/min are set, said mixture material is continuously passed through in screw extruder
800mm bores die orifice is extruded.
Comparative example
This comparative example ultrahigh molecular weight polyethylene tubing, is made up of the raw material of following mass percent：Molecular weight is 4,500,000
Ultra-high molecular weight polyethylene 97.6%, molecular weight is 2000 macromolecule wax 2%, pigment 0.2%, age resister 0.2%.
This comparative example ultrahigh molecular weight polyethylene tubing is formed by 6 pieces of arc joggles, arc both sides vertically point
The dovetail and dovetail groove for joggle are not provided with, and arcuately the axial direction of plate extends and length and arc respectively for dovetail and dovetail groove
The equal length of shape plate.
The preparation method of this comparative example ultrahigh molecular weight polyethylene tubing, comprises the following steps：Above-mentioned each raw material is put into
High mixer, 1200 revs/min mixing 1 minute after be put into feed bin be heated to 175 DEG C and insulation 1.5 hours.Screw extruder barrel four
Area's temperature is respectively：185℃、200℃、220℃、240℃；The area's temperature of mouth mold four is respectively：240℃、220℃、200℃、180
℃.8MPa extrusion pressures and screw speed as 30 revs/min are set, said mixture material is continuously passed through in screw extruder
The 1/6 arc die orifice extrusion of 800mm bores.
Experimental example
Tensile strength to embodiment 1~3 and comparative example gained ultra-high molecular weight polyethylene extrusion sample presses GB/T
The method of testing of 1040-1992 is tested；Notch impact strength is tested by the method for GB/T1843-1996, and is tested
Its extruded velocity, test result see the table below 1.
The mechanical experimental results of the embodiment 1~3 of table 1 and comparative example gained ultrahigh molecular weight polyethylene tubing
From the test result of table 1, the gained high-molecular weight polyethylene tube material of the embodiment of the present invention 1~3 is ensureing breach punching
While hit intensity, tensile strength, stretch modulus, elongation at break, extruded velocity are substantially better than comparative example, significantly improve super
The mechanical property of high-molecular weight polyethylene tube material, and comparative example is due to without modifying agent is added, ensureing that pipeline shaping is good
In the case of, compared to modified combination material, extruded velocity reduction is a lot.
Claims (10)
1. a kind of ultrahigh molecular weight polyethylene tubing, it is characterised in that be mainly made up of the raw material of following mass percent：Poly- second
Alkene 92-96%, macromolecule wax 1-2%, modified montmorillonoid 2-3.5%, modified Nano molybdenum bisuphide 0.5-1%, Graphene 0.2-
0.8%, age resister 0.1-0.3%.
2. ultrahigh molecular weight polyethylene tubing as claimed in claim 1, it is characterised in that the molecular weight of the polyethylene is
250~8,000,000.
3. ultrahigh molecular weight polyethylene tubing as claimed in claim 1, it is characterised in that the molecular weight of the macromolecule wax is
2000~3000.
4. the ultrahigh molecular weight polyethylene tubing as described in claim any one of 1-3, it is characterised in that by 4~8 pieces of arcs
Joggle is formed, the arc dovetail and dovetail groove that are respectively provided on two sides with for joggle vertically.
5. a kind of preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 1, it is characterised in that including following
Step：
Each raw material is measured by formula to mix, obtain compound；Compound is put into feed bin, 175 DEG C of 1~2h of insulation, after through screw rod
Extruder extrudes into pipe mold, and shunting fusion is molded, and through cooling and shaping, curing molding is obtained final product；It is described to be extruded as overall squeezing
Go out or piecemeal extrusion.
6. the preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 5, it is characterised in that the mixing is in height
Mixed in mixed machine, the rotating speed of the high mixer is 1000~1500 revs/min.
7. the preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 6, it is characterised in that used by the mixing
Time is 2~5 minutes.
8. the preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 5, it is characterised in that the Screw Extrusion
The extrusion pressure of machine is set as 4-12Mpa.
9. the preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 5, it is characterised in that the Screw Extrusion
The barrel temperatures set of machine is 4th area：One 180~190 DEG C of area, two 190~205 DEG C of areas, three 210~230 DEG C of areas, four areas 230~
250℃；Die temperature is set as 4th area, 230~250 DEG C of an area, two 230~210 DEG C of areas, 3rd area, 195~210 DEG C, 4th area
180℃。
10. the preparation method of ultrahigh molecular weight polyethylene tubing as claimed in claim 5, it is characterised in that the screw rod is squeezed
Go out the screw speed of machine for 15~40 turns/min, hauling speed is 0.5~10m/min.
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| CN201611260696.7A CN106832513A (en) | 2016-12-30 | 2016-12-30 | A kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107584742A (en) * | 2017-07-28 | 2018-01-16 | 山西华星管业科技有限公司 | The production method of ultrahigh molecular weight polyethylene tubing and its extruder machine mould used |
| CN107602983A (en) * | 2017-09-27 | 2018-01-19 | 中玺新材料（安徽）有限公司 | A kind of ultrahigh molecular weight polyethylene tubing and preparation method thereof |
| CN108676243A (en) * | 2018-05-28 | 2018-10-19 | 天津市伟星新型建材有限公司 | A kind of hybrid material, graphene modified heat resistant PE-RT tubing and preparation method thereof |
| CN110079000A (en) * | 2019-05-13 | 2019-08-02 | 无锡市道普威控制索有限公司 | A kind of motorcycle bracing wire casing |
| CN110951143A (en) * | 2019-12-17 | 2020-04-03 | 河南万恒塑胶有限公司 | Corrosion-resistant PE water supply pipe and preparation method thereof |
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