CN107141561A - A kind of high-tough fracture-resistant PE tubing - Google Patents
A kind of high-tough fracture-resistant PE tubing Download PDFInfo
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- CN107141561A CN107141561A CN201710459648.9A CN201710459648A CN107141561A CN 107141561 A CN107141561 A CN 107141561A CN 201710459648 A CN201710459648 A CN 201710459648A CN 107141561 A CN107141561 A CN 107141561A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D23/00—Producing tubular articles
- B29D23/001—Pipes; Pipe joints
-
- 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
-
- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
-
- 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
- C08K2201/002—Physical properties
- C08K2201/004—Additives being defined by their length
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
Abstract
A kind of high-tough fracture-resistant PE tubing, belong to PE tubing technical fields, it includes polyethylene, phenolic resin, compatilizer, antioxidant carrying out mixing plasticizing, add ceramic particle, carbon fiber, graphite, glass fibre and carry out fully calendering infiltration, then the first slow traction miniature water-cooled shaping of one-step forming vacuum cooling and shaping is carried out by tube-forming machine and pulls out sizing tubing cutting at the same speed, obtain PE pipe finisheds；Its advantage is：Raw material each component is subjected to substep consolute in preparation process, each raw material material can be made fully to be melted, the quality of production and toughness effect is effectively improved；Specific temperature can improve compatibility, and specific speed can improve tensile strength and bending strength；Specific raw material are equipped with causes PE tubing to obtain good balanced growth in terms of tensile strength, stretch modulus, bending strength, bending modulus and elongation at break with reference to preparation method, effectively increases comprehensive mechanical property.
Description
Technical field
The present invention relates to PE tubing technical fields, particularly a kind of high-tough fracture-resistant PE tubing.
Background technology
PE (polyethylene) refers to by the polymer of vinyl monomer radical polymerization, is the maximum general-purpose plastics of yield
One of, it is the thermoplasticity modeling with light weight, nontoxic, preferable mechanical strength, excellent electrical insulating property and resistance to chemical corrosion
Material.
PE pipes are that based on polyethylene particle, plurality of raw materials is blended in the tubing being molded in profile-forming machine.Widely should
For building water supply, construction drainage, urban water supply, buried drain pipe, building and heating, gas transmission and distribution, appendix, electrician and telecommunication
Protection sleeve pipe, industrial pipe, agricultural pipe etc..
It in the application of PE tubing, can run into than relatively rugged environment, when running into impact or pressure, tend to unavoidably
There is the phenomenon that crack is even broken, it is impossible to effectively meet practical engineering application.
Thus, the patent No. 2014106173748 provides a kind of preparation method for the PE pipes that hardness is high, fracture toughness is high,
The PE pipes of this method production are with connection is reliable, low-temperature impact resistance is good, anti-stress cracking is good, chemical resistance is good, resistance to
Aging wearability is good, pliability is good, small flow resistance the advantages of.But the toughness of the product and break resistance are still not enough.
The content of the invention
The technical problems to be solved by the invention are just to provide above-mentioned practical problem a kind of with high tenacity, Neng Gouyou
Effect reduces the PE tubing of fracture, preferably to meet practical engineering application.
In order to solve the above technical problems, the technical solution adopted in the present invention is a kind of high-tough fracture-resistant PE tubing, its
Being characterised by composition of raw material and its weight ratio is：100 parts of polyethylene, 60-80 parts of phenolic resin, 60-80 parts of ceramic particle, carbon
8-16 parts of fiber, 8-16 parts of graphite, 6-12 parts of glass fibre, 5-7 parts of compatilizer, 0.5-0.7 parts of antioxidant.
It is preferred that, the composition of raw material and its weight are：100 parts of polyethylene, 70 parts of phenolic resin, 70 parts of ceramic particle,
12 parts of carbon fiber, 12 parts of graphite, 9 parts of glass fibre, 6 parts of compatilizer, 0.6 part of antioxidant.
The fiber footpath of the carbon fiber is 5 μm -9 μm, and fibre length is 170 μm -- 410 μm.
The compatilizer is maleic anhydride or acrylate.
The antioxidant is high molecular weight hindered phenols kind antioxidant, preferably PS802 antioxidant, can also use 1010 antioxygens
Agent, 1076 antioxidant.
The preparation method of the high-tough fracture-resistant PE tubing comprises the following steps.
(1) got the raw materials ready according to described composition and weight fraction.
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 3~5 minutes, are then added to
In screw extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon
PE materials；The screw extruder temperature is 257-261 DEG C.
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with
Pardon PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high-ductility
Property PE materials；The immersion slot temperature is 261-333 DEG C.
By high tenacity PE materials pass through tube-forming machine carry out just one-step forming-vacuum cooled be molded-slowly draw miniature-
Water-cooled shaping-pull out sizing tubing-cutting at the same speed, obtains PE pipe finisheds；The slow traction miniature refers to hauling speed and is
The 90%-98% of extruded velocity.
Step (4) in, by high tenacity PE materials by tube-forming machine carry out just one-step forming, during first one-step forming set squeeze
Go out die head temperature for 163 DEG C -173 DEG C, extruded velocity is 0.2-1.0M/min；Vacuum cooled shaping is carried out after first one-step forming, if
Vacuum is determined for 0 .03MPa-0 .05MPa, and chilling temperature is 48 DEG C -52 DEG C；Led after vacuum cooled shaping by extractor
Draw, set hauling speed as 0.18-0.98 M/min；It is further continued for carrying out water-cooled shaping, it is 13 DEG C -17 DEG C to control water cooling temperature；
Go out the PE tubing of sizing according still further to same speed drawing, then the length cut-out as requested of cleaved machine, obtain PE tubing into
Product.
The beneficial effects of the invention are as follows：Phenolic resin, compatilizer and antioxidant are mixed into polyethylene, can be greatly improved
The pardon of polyethylene；, can with reference to the tensile properties of ceramic particle and the stiffness characteristics of graphite, and carbon fiber and glass fibre
To greatly improve the toughness and break resistance of polyethylene；Raw material each component is subjected to substep consolute in preparation process, can
Each raw material material is fully melted, effectively improve the quality of production, improve toughness effect；Specific temperature can improve phase
Capacitive, specific speed can improve tensile strength and bending strength；Specific raw material are equipped with causes PE with reference to preparation method
Tubing has obtained good balance in terms of tensile strength, stretch modulus, bending strength, bending modulus and elongation at break and increased
It is long, effectively increase comprehensive mechanical property.
Embodiment
With reference to embodiment, the invention will be further described, and following examples are intended to illustrate invention rather than to this
The further restriction of invention, should not be limited the scope of the invention with this.
Embodiment 1.
A kind of high-tough fracture-resistant PE tubing, its composition of raw material and its weight ratio are：100 parts of polyethylene, phenolic resin
60 parts, 60 parts of ceramic particle, 8 parts of carbon fiber, 8 parts of graphite, 6 parts of glass fibre, 5 parts of compatilizer, 0.5 part of antioxidant.
The fiber footpath of the carbon fiber is 5 μm -6 μm, and fibre length is 170 μm -- 250 μm.
The compatilizer is maleic anhydride.
The antioxidant is 1010 antioxidant.
Embodiment 2.
A kind of high-tough fracture-resistant PE tubing, its composition of raw material and its weight are：100 parts of polyethylene, phenolic resin 70
Part, 70 parts of ceramic particle, 12 parts of carbon fiber, 12 parts of graphite, 9 parts of glass fibre, 6 parts of compatilizer, 0.6 part of antioxidant.
The fiber footpath of the carbon fiber is 7 μm -8 μm, and fibre length is 250 μm -- 330 μm.
The compatilizer is maleic anhydride.
The antioxidant is PS802 antioxidant.
Embodiment 3.
A kind of high-tough fracture-resistant PE tubing, its composition of raw material and its weight ratio are：100 parts of polyethylene, phenolic resin
80 parts, 80 parts of ceramic particle, 16 parts of carbon fiber, 16 parts of graphite, 12 parts of glass fibre, 7 parts of compatilizer, 0.7 part of antioxidant.
The fiber footpath of the carbon fiber is 8 μm -9 μm, and fibre length is 330 μm -- 410 μm.
The compatilizer is acrylate.
The antioxidant is 1076 antioxidant.
Embodiment 4.
A kind of high-tough fracture-resistant PE tubing is prepared, is comprised the following steps.
(1) got the raw materials ready according to the composition and weight fraction described in embodiment 1.
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 3 minutes, are then added to screw rod
In extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon PE materials
Material；The screw extruder temperature is 257 DEG C.
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with
Pardon PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high-ductility
Property PE materials；The immersion slot temperature is 261 DEG C.
(4) high tenacity PE materials are subjected to just one-step forming by tube-forming machine, extrusion die temperature is set during first one-step forming
For 163 DEG C, extruded velocity is 0.2M/min；Vacuum cooled shaping is carried out after first one-step forming, vacuum is set as 0 .03MPa, it is cold
But temperature is 48 DEG C；Drawn after vacuum cooled shaping by extractor, set hauling speed as 0.18M/min；Be further continued for into
Water-filling is cold formed, and it is 13 DEG C to control water cooling temperature；Go out the PE tubing of sizing according still further to 0.18M/min speed drawing, then through cutting
Cutting mill length cut-out as requested, obtains PE pipe finisheds.
Embodiment 5.
A kind of high-tough fracture-resistant PE tubing is prepared, is comprised the following steps.
(1) got the raw materials ready according to the composition and weight fraction described in embodiment 2.
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 4 minutes, are then added to screw rod
In extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon PE materials
Material；The screw extruder temperature is 258 DEG C.
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with
Pardon PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high-ductility
Property PE materials；The immersion slot temperature is 289 DEG C.
(4) high tenacity PE materials are subjected to just one-step forming by tube-forming machine, extrusion die temperature is set during first one-step forming
For 168 DEG C, extruded velocity is 0.50M/min；Vacuum cooled shaping is carried out after first one-step forming, vacuum is set as 0 .04MPa,
Chilling temperature is 49 DEG C；Drawn after vacuum cooled shaping by extractor, set hauling speed as 0.48 M/min；It is further continued for
Water-cooled shaping is carried out, it is 15 DEG C to control water cooling temperature；Go out the PE tubing of sizing according still further to 0.48 M/min speed drawing, then pass through
Cutting machine length cut-out as requested, obtains PE pipe finisheds.
Embodiment 6.
A kind of high-tough fracture-resistant PE tubing is prepared, is comprised the following steps.
(1) got the raw materials ready according to the composition and weight fraction described in embodiment 2.
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 4 minutes, are then added to screw rod
In extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon PE materials
Material；The screw extruder temperature is 259 DEG C.
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with
Pardon PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high-ductility
Property PE materials；The immersion slot temperature is 297 DEG C.
(4) high tenacity PE materials are subjected to just one-step forming by tube-forming machine, extrusion die temperature is set during first one-step forming
For 169 DEG C, extruded velocity is 0.63M/min；Vacuum cooled shaping is carried out after first one-step forming, vacuum is set as 0 .04MPa,
Chilling temperature is 50 DEG C；Drawn after vacuum cooled shaping by extractor, set hauling speed as 0.61 M/min；It is further continued for
Water-cooled shaping is carried out, it is 15 DEG C to control water cooling temperature；Go out the PE tubing of sizing according still further to 0.61 M/min speed drawing, then pass through
Cutting machine length cut-out as requested, obtains PE pipe finisheds.
Embodiment 7.
A kind of high-tough fracture-resistant PE tubing is prepared, is comprised the following steps.
(1) got the raw materials ready according to the composition and weight fraction described in embodiment 3.
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 5 minutes, are then added to screw rod
In extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon PE materials
Material；The screw extruder temperature is 261 DEG C.
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with
Pardon PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high-ductility
Property PE materials；The immersion slot temperature is 333 DEG C.
(4) high tenacity PE materials are subjected to just one-step forming by tube-forming machine, extrusion die temperature is set during first one-step forming
For 173 DEG C, extruded velocity is 1.0M/min；Vacuum cooled shaping is carried out after first one-step forming, vacuum is set as 0 .05MPa, it is cold
But temperature is 52 DEG C；Drawn after vacuum cooled shaping by extractor, set hauling speed as 0.98 M/min；Be further continued for into
Water-filling is cold formed, and it is 17 DEG C to control water cooling temperature；Go out the PE tubing of sizing according still further to 0.98 M/min speed drawing, then through cutting
Cutting mill length cut-out as requested, obtains PE pipe finisheds.
PE tubing is produced according to existing method, and carries out check experiment.
Comparative examples 8.
According to parts by weight by 35 parts of polyethylene；25 parts of nylon 6；30 parts of ceramic particles；0 .8 parts of Masterbatch；1 .2 parts stable
Agent；3 parts of defoamers；5 parts of antioxidants are after hybrid reaction 3h during reaction temperature is 225 DEG C of reactor, evaporating water, input
Extruder, extrusion die is pushed into by the screw rod in extruder by compound, is shaped after shaping through 40 DEG C of vacuum cooleds, by drawing
Machine travel goes out the PE tubing of shaping, then the length cut-out as requested of cleaved machine, obtains PE pipe finisheds.
Comparative examples 9.
According to parts by weight by 30 parts of polyethylene；26 parts of nylon 6；34 parts of ceramic particles；1 part of Masterbatch；1 part of stabilizer；4
Part defoamer；4 parts of antioxidants are after hybrid reaction 3h during reaction temperature is 230 DEG C of reactor, evaporating water, input extrusion
Machine, extrusion die is pushed into by the screw rod in the extruder by compound, is shaped after shaping through 45 DEG C of vacuum cooleds, by drawing
Machine travel goes out the PE tubing of shaping, then the length cut-out as requested of cleaved machine, obtains PE pipe finisheds.
The tubing that the various embodiments described above are produced is measured and evaluated.
As seen from the above table, the PE tubing of various embodiments of the present invention production is being drawn compared with the PE tubing that comparative examples are produced
Balanced growth has been obtained in terms of stretching intensity, stretch modulus, bending strength, bending modulus and elongation at break, has been substantially increased
Toughness and break resistance.
Claims (9)
1. a kind of high-tough fracture-resistant PE tubing, it is characterised in that composition of raw material and its weight ratio are：100 parts of polyethylene, phenol
60-80 parts of urea formaldehyde, 60-80 parts of ceramic particle, 8-16 parts of carbon fiber, 8-16 parts of graphite, 6-12 parts of glass fibre, compatilizer 5-
7 parts, 0.5-0.7 parts of antioxidant.
2. high-tough fracture-resistant PE tubing according to claim 1, it is characterised in that the composition of raw material and its weight
It is：It is 100 parts of polyethylene, 70 parts of phenolic resin, 70 parts of ceramic particle, 12 parts of carbon fiber, 12 parts of graphite, 9 parts of glass fibre, compatible
6 parts of agent, 0.6 part of antioxidant.
3. high-tough fracture-resistant PE tubing according to claim 1, it is characterised in that the fiber footpath of the carbon fiber is 5 μ
M-9 μm, fibre length is 170 μm -- 410 μm.
4. high-tough fracture-resistant PE tubing according to claim 1, it is characterised in that the compatilizer be maleic anhydride or
Acrylate.
5. high-tough fracture-resistant PE tubing according to claim 1, it is characterised in that the antioxidant be HMW by
Hinder phenolic antioxidant.
6. high-tough fracture-resistant PE tubing according to claim 5, it is characterised in that the antioxidant is PS802 antioxidant
Also 1010 antioxidant, 1076 antioxidant can be used.
7. a kind of preparation method of high-tough fracture-resistant PE tubing as any one of claim 1-6, it is characterised in that
Comprise the following steps：
(1) got the raw materials ready according to described composition and weight fraction；
(2) polyethylene, phenolic resin, compatilizer, antioxidant are put into high-speed mixer and mixing 3~5 minutes, are then added to screw rod
In extruder, after being plastified by screw extruder, it is transported in body turning style high-temperature fusant calendering immersion slot；Obtain pardon PE materials
Material；The screw extruder temperature is 257-261 DEG C；
(3) ceramic particle, carbon fiber, graphite, glass fibre are transported in body turning style high-temperature fusant calendering immersion slot, with containing
Property PE material at high temperature consolutes, carry out fully calendering infiltration, then put into cooling granulation in screw extruder, obtain high tenacity PE
Material；The immersion slot temperature is 261-353 DEG C；
(4) high tenacity PE materials are subjected to just one-step forming-vacuum cooled shaping-by tube-forming machine and slowly draw miniature-water cooling
Sizing-pull out sizing tubing-cutting at the same speed, obtains PE pipe finisheds；It is extrusion that the slow traction miniature, which refers to hauling speed,
The 90%-98% of speed.
8. the preparation method of high-tough fracture-resistant PE tubing according to claim 7, it is characterised in that step (4) in, will
High tenacity PE materials carry out just one-step forming by tube-forming machine, and extrusion die temperature is set during first one-step forming as 163 DEG C -173
DEG C, extruded velocity is 0.2-1.0M/min；Vacuum cooled shaping is carried out after first one-step forming, vacuum is set as 0 .03MPa-0
.05MPa, chilling temperature is 48 DEG C -52 DEG C；Drawn after vacuum cooled shaping by extractor, set hauling speed as 0.18-
0.98 M/min；It is further continued for carrying out water-cooled shaping, it is 13 DEG C -17 DEG C to control water cooling temperature；Go out according still further to same speed drawing
The PE tubing of sizing.
9. the preparation method of high-tough fracture-resistant PE tubing according to claim 7, it is characterised in that：
Step (2) in, the screw extruder temperature be 259 DEG C；
Step (3) in, the immersion slot temperature be 297 DEG C；
Step (4) in, extrusion die temperature is set during first one-step forming as 169 DEG C, extruded velocity is 0.63M/min；Vacuum cooled
Vacuum is set during shaping as 0 .04MPa, chilling temperature is 50 DEG C；Hauling speed is set when extractor is drawn as 0.61
M/min；Carry out setting water cooling temperature as 15 DEG C during water-cooled shaping；Go out the PE pipes of sizing according still further to 0.61 M/min speed drawing
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459648.9A CN107141561A (en) | 2017-06-16 | 2017-06-16 | A kind of high-tough fracture-resistant PE tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710459648.9A CN107141561A (en) | 2017-06-16 | 2017-06-16 | A kind of high-tough fracture-resistant PE tubing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107141561A true CN107141561A (en) | 2017-09-08 |
Family
ID=59781487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710459648.9A Pending CN107141561A (en) | 2017-06-16 | 2017-06-16 | A kind of high-tough fracture-resistant PE tubing |
Country Status (1)
| Country | Link |
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| CN (1) | CN107141561A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452439A (en) * | 2019-08-01 | 2019-11-15 | 安徽万安环境科技股份有限公司 | A kind of mica-reinforced middle density PE pipe enhancing PP Pipe Compound |
| CN113337026A (en) * | 2021-06-25 | 2021-09-03 | 广西顺通高分子材料科技有限公司 | Preparation process of corrosion-resistant PE drain pipe |
-
2017
- 2017-06-16 CN CN201710459648.9A patent/CN107141561A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110452439A (en) * | 2019-08-01 | 2019-11-15 | 安徽万安环境科技股份有限公司 | A kind of mica-reinforced middle density PE pipe enhancing PP Pipe Compound |
| CN113337026A (en) * | 2021-06-25 | 2021-09-03 | 广西顺通高分子材料科技有限公司 | Preparation process of corrosion-resistant PE drain pipe |
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Application publication date: 20170908 |
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