CN109054153A - A kind of corrosion-resistant high density polyethylene (HDPE) feed pipe and preparation method thereof - Google Patents
A kind of corrosion-resistant high density polyethylene (HDPE) feed pipe and preparation method thereof Download PDFInfo
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/12—Rigid pipes of plastics with or without reinforcement
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- 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
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- 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
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- 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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Abstract
The invention belongs to tubular object extruding technical field, specifically a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe and preparation method thereof.Its internal layer and outer layer, internal layer raw material are as follows: crosslinking high density polyethylene (HDPE), polytetrafluoroethylene (PTFE), metallocene resin, polyvinyl alcohol, paraffin, zinc oxide, titanium dioxide, polyethylene glycol, polypropylene grafted maleic anhydride, imidazole type ion liquid；Outer layer raw material are as follows: crosslinking high density polyethylene (HDPE), polytetrafluoroethylene (PTFE), metallocene resin, polyvinyl alcohol, paraffin, zinc oxide, titanium dioxide, expandable polystyrene, carbon black, calcium carbonate, talcum powder, carbon fibre, silicon nitride, aluminium nitride, fatty acid, rice hull ash, polyethylene glycol, ethylene acrylic acid co polymer, imidazole type ion liquid, silane coupling agent, light stabilizer.Preparation method is to prepare inner layer material and cladding material respectively, then inner layer material and cladding material are squeezed out, and being sent into composite molding in mold, cooling, being formed is to obtain corrosion-resistant high density polyethylene (HDPE) feed pipe.
Description
Technical field
The invention belongs to tubular object extruding technical field, specifically a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe and its
Preparation method.
Background technique
Polyethylene is the maximum kind of dosage in plastic material, can be divided into two major classes: high density polyethylene (HDPE) (HDPE) and low
Density polyethylene (LDPE).The application field of polyethylene is very wide, for manufacturing one of the important use that tubing is polyethylene,
But not all polythene material can be used for preparing feed pipe, need to select suitable material that can make feed pipe
Performance is improved.Polyethylene feed pipe is using high-quality polyethylene as primary raw material, adds necessary antioxidant, ultraviolet light is inhaled
Receive agent, etc. auxiliary addition agents, arrived using a kind of novel feed pipe that extrusion molding process is processed.This pipeline, which has, not to be tied
The advantages that dirty, defeated hydraulics are good, light-weight, impact resistance is strong, is widely used.
With the reach of science, although the water-feeding pipes contained now have certain corrosion resistance, in reality
The requirement of people is not achieved in application process, greatly reduces the service life of water-feeding pipes, is made to water-feeding pipes Domain resources
At serious waste.
Summary of the invention
The present invention provide that a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe and preparation method thereof prepared through the invention to
Water pipe material corrosion resistance and good, can effectively extend the service life of feed pipe, at the same feed pipe toughness with higher and
Higher intensity, light weight, biocidal property are strong, circulation is big, simple installation, are suitable for producing in enormous quantities.
The scheme of the invention is realize in this way:
A kind of corrosion-resistant high density polyethylene (HDPE) feed pipe, the corrosion-resistant high density polyethylene (HDPE) feed pipe include internal layer and outer
Layer, each constituent of internal layer raw material and its weight fraction ratio are as follows: crosslinking 70 ~ 75 parts of high density polyethylene (HDPE), polytetrafluoroethyl-ne
8 ~ 10 parts of alkene, 6 ~ 8 parts of metallocene resin, 10 ~ 12 parts of polyvinyl alcohol, 2 ~ 4 parts of paraffin, 4 ~ 6 parts of zinc oxide, 5 ~ 8 parts of titanium dioxide,
4 ~ 6 parts of polyethylene glycol, 8 ~ 12 parts of polypropylene grafted maleic anhydride, 8 ~ 12 parts of imidazole type ion liquid；
Each constituent of outer layer raw material and its weight fraction ratio are as follows: crosslinking 70 ~ 75 parts of high density polyethylene (HDPE), polytetrafluoroethyl-ne
5 ~ 6 parts of alkene, 4 ~ 6 parts of metallocene resin, 8 ~ 10 parts of polyvinyl alcohol, 3 ~ 5 parts of paraffin, 5 ~ 8 parts of zinc oxide, 5 ~ 8 parts of titanium dioxide, can
4 ~ 8 parts of polystyrene of hair property, 3 ~ 4 parts of carbon black, 3 ~ 5 parts of calcium carbonate, 1 ~ 3 part of talcum powder, 1 ~ 2 part of carbon fibre, silicon nitride 0.3 ~
0.6 part, 0.3 ~ 0.4 part of aluminium nitride, 0.5 ~ 1 part of fatty acid, 5 ~ 8 parts of rice hull ash, 1 ~ 2 part of polyethylene glycol, ethylene-acrylic acid copolymer
6 ~ 12 parts of object, 12 ~ 15 parts of imidazole type ion liquid, 2 ~ 6 parts of silane coupling agent, 1 ~ 2 part of light stabilizer.
As a further improvement of the present invention, the corrosion-resistant high density polyethylene (HDPE) water supply inner tube layer and outer layer thickness ratio
For 4:1.
As a further improvement of the present invention, the corrosion-resistant high density polyethylene (HDPE) water supply inner tube layer and outer layer thickness ratio
For 4:1.
As a further improvement of the present invention, the high density polyethylene (HDPE) is PE100 grades.
As a further improvement of the present invention, the calcium carbonate particle size is 0.2 ~ 0.5 μm.
As a further improvement of the present invention, the talcum powder particle size is 1.0 ~ 2.0 μm.
As a further improvement of the present invention, the carbon fibre particle size is 7 ~ 10 μm.
As a further improvement of the present invention, the light stabilizer is light stabilizer 622, light stabilizer 770, light are stablized
The combination of one or more of agent 944.
As a further improvement of the present invention, the imidazole type ion liquid is 1- vinyl -3- butyl imidazole hexafluoro
The combination of one or both of phosphate, 1- hexyl -3- methyl imidazolium tetrafluoroborate.
A method of preparing corrosion-resistant high density polyethylene (HDPE) feed pipe, comprising the following steps:
(1) preparation of crosslinked polyethylene: take 1 ~ 3 part of vinyltrimethoxysilane, 0.01 ~ 2 part of initiator, catalyst 0.05 ~
0.5 part, antioxidant 1010 be 0.1 ~ 0.2 part and be stirred uniformly mixed, 90 ~ 100 parts of high density polyethylene (HDPE) is then added and exists
Temperature be at 170 ~ 200 DEG C with screw speed be 60r/min under the conditions of carry out melting extrusion obtain crosslinking high density polyethylene (HDPE)；
(2) it the preparation of inner layer material: takes 4 ~ 6 parts of zinc oxide, in 5 ~ 8 parts of addition batch mixers of titanium dioxide, temperature is risen to 60 DEG C
2 ~ 4 parts of paraffin, 4 ~ 6 parts of polyethylene glycol, 8 ~ 12 parts of polypropylene grafted maleic anhydride, 8 ~ 12 parts of imidazole type ion liquid guarantors are added afterwards
Temperature is stirred 20 ~ 30min, takes crosslinking 70 ~ 75 parts of high density polyethylene (HDPE), 8 ~ 10 parts of polytetrafluoroethylene (PTFE), metallocene resin 6 ~ 8
Part, 10 ~ 12 parts of polyvinyl alcohol carry out 20 ~ 30min of mixing and obtain uniformly mixed material, and uniformly mixed material addition is made
Grain machine is granulated to obtain inner layer material；
(3) preparation of cladding material: being heated to 120 ~ 130 DEG C for 6 ~ 12 parts of ethylene acrylic acid co polymer, be added 3 ~ 4 parts of carbon black,
1 ~ 2 part of carbon fibre, 0.3 ~ 0.6 part of silicon nitride, 0.3 ~ 0.4 part of aluminium nitride, 0.5 ~ 1 part of fatty acid, 5 ~ 8 parts of rice hull ash, poly- second
1 ~ 2 part of glycol, 8 ~ 10 parts of polyvinyl alcohol are stirred 10 ~ 15min in the case where revolving speed is 100 ~ 200r/min, are subsequently cooled to often
Temperature obtains premix A；70 ~ 75 parts of high density polyethylene (HDPE), 5 ~ 6 parts of polytetrafluoroethylene (PTFE), 4 ~ 6 parts of metallocene resin, carbonic acid will be crosslinked
3 ~ 5 parts of calcium, 1 ~ 3 part of talcum powder, 3 ~ 5 parts of paraffin, 5 ~ 8 parts of zinc oxide, 5 ~ 8 parts of titanium dioxide, imidazole type ion liquid 12 ~ 15
Part, 2 ~ 6 parts of silane coupling agent be stirred at 50 ~ 60 DEG C, setting speed of agitator be 200 ~ 300r/min, incorporation time 18
~ 20min obtains premix B；Premix A, 4 ~ 8 parts of expandable polystyrene, light are added after premix B is cooled to room temperature to stablize
1 ~ 2 part of agent dries after mixing 10 ~ 12min under speed of agitator is 300 ~ 400r/min, and feeding pelletizer is granulated to obtain outer
Layer material；
(4) preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: inner layer material, cladding material are sent into extruder and are squeezed
Out, be re-fed into composite molding in mold, cooling, sizing obtain corrosion-resistant high density polyethylene (HDPE) feed pipe.
As a further improvement of the present invention, the initiator is cumyl peroxide, dimethyl one, a diperoxy
Change the combination of one or both of tertiary base hexin.
As a further improvement of the present invention, the catalyst is dibutyl tin dilaurate, lauryl mercaptan dibutyl
The combination of one or both of tin.
As a further improvement of the present invention, a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe can be applied to build
Water supply, draining are built, the conveying of cities and towns tap water, municipal drainage, blowdown, Study of Related Policy On Drinking Water For People And Livestock In The Countryside transformation, agricultural irrigation, draining etc. are many
Field.
The technical principle that the present invention realizes is:
Polytetrafluoroethylene (PTFE) is added in the present invention, metallocene resin can be improved the antiacid alkali of water-feeding pipes, it is various organic molten to resist
The advantages of agent, effectively extends the service life of water-feeding pipes to effectively improve the corrosion resistance of water-feeding pipes.By high density
Polyethylene is first crosslinked, and polyethylene can be become tridimensional network, the chemical resistance of polyethylene by original two-dimensional structure
Energy, heat resistance and mechanical performance can be improved, to improve the corrosion resistance of feed pipe, expand the use scope of feed pipe.
Paraffin, polyethylene glycol, polypropylene grafted Malaysia are added after mixing when preparing inner layer material using zinc oxide and titanium dioxide
Acid anhydrides, imidazole type ion liquid are mixed, and polypropylene grafted maleic anhydride introduces highly polar group on nonpolar molecule,
Zinc oxide, the compatibility in titanic oxide material polyethylene and dispersibility and adhesive property, imidazole type ion liquid can be enhanced
Addition can prevent internal layer raw material from agglomeration occurs, while the functional group in imidazole type ion liquid can be with polyethylene
In polymer segment chemical action or winding effect occurs, the other end reacted with zinc oxide and titanium dioxide, can
Enhance raw material in it is organic with it is inorganic between compound, imidazole type ion liquid and polyethylene glycol, polypropylene grafted maleic anhydride phase
Interaction, the interface cohesion effect being effectively improved between zinc oxide, titanium dioxide and high density polyethylene (HDPE), so that inner layer material is former
Material is uniformly distributed, and improves the stretching and intensity of water-feeding pipes, and the surface smoothness of water-feeding pipes can be improved in the addition of paraffin, benefit
In processing.
The flexible materials such as paraffin, carbon fibre, silicon nitride, aluminium nitride, fatty acid are also added into preparing cladding material,
Flexible material can be improved the toughness of water-feeding pipes, so that the tension fracture elongation rate of water-feeding pipes, impact strength are larger, just
In construction.Light can be absorbed in carbon black, can be improved the ability of the anti-ultraviolet anti-aging of tubing, with zinc oxide, titanium dioxide with
And the light stabilizer being added can play synergistic effect, prevent the aging of water-feeding pipes jointly, extend water-feeding pipes uses the longevity
Life.Furthermore light stabilizer and can be improved the stability of water-feeding pipes after expandable polystyrene effect.
Corrosion-resistant high density polyethylene (HDPE) water supply outer tube layer and internal layer thickness ratio are 4:1, and inner layer material is compatible with cladding material
Property is good, and the two can adhere well to together in process, can give full play to excellent properties of a variety of materials and more
Mend its disadvantage.Substep prepares mixed material, and the stock dispersion in water-feeding pipes can be made to be uniformly mixed, improve water-feeding pipes raw material
The compatibility of middle organic matter and inorganic material is conducive to the properties for improving water-feeding pipes.
The present invention has following good result:
1. the high density polyethylene (HDPE) Double-layer pipe that the present invention is prepared improves the properties of water-feeding pipes, tubing at point it
Between compatibility it is good, light weight, toughness and intensity with higher, corrosion-resistant strong, antibiotic property effect is good, long service life, construction
It is easy for installation.
2. the high density polyethylene (HDPE) bimetallic tube that the present invention is prepared prevents the use of waste material and reclaimed materials in the product, protect
It demonstrate,proves pipeline and conveying water safe, hygienic.
3. corrosion-resistant high density polyethylene (HDPE) water supply inner tube layer of the invention can be with using 100 grades of polythene PE white this colorant
It avoids remaining free chlorine in drinking water and causes resin aging, and the secondary pollution supplied water can be prevented, greatly improve
The service life of pipe-line system.
Specific embodiment
A kind of corrosion-resistant high density polyethylene (HDPE) feed pipe of the description present invention and preparation method thereof with reference to embodiments, these
Description is not to be further limited to the content of present invention.
Embodiment 1
The preparation of crosslinked polyethylene: 3 parts of vinyltrimethoxysilane, 0.01 part of cumyl peroxide initiator, 12 are taken
0.5 part of dibutyltin mercaptide catalyst, antioxidant 1010 are 0.12 part and are stirred uniformly mixed, and it is poly- that high density is then added
95 parts of ethylene carries out melting extrusion under the conditions of with screw speed being 60r/min at temperature is 180 DEG C, and to obtain crosslinking high density poly-
Ethylene；
The preparation of inner layer material: it takes 5 parts of zinc oxide, in 8 parts of addition batch mixers of titanium dioxide, stone is added after temperature is risen to 60 DEG C
3 parts of wax, 6 parts of polyethylene glycol, 9 parts of polypropylene grafted maleic anhydride, 1- vinyl -3- butyl imidazole hexafluorophosphoric acid ionic liquid
11 parts of insulated and stirreds mix 28min, then add crosslinking 73 parts of high density polyethylene (HDPE), 9 parts of polytetrafluoroethylene (PTFE), metallocene resin
7.5 parts, 11.5 parts of polyvinyl alcohol carry out mixing 30min and obtain uniformly mixed material, and uniformly mixed material is added and is granulated
Machine is granulated to obtain inner layer material；
The preparation of cladding material: 125 DEG C are heated to by 12 parts of ethylene acrylic acid co polymer, 4 parts of carbon black, particle size 10 is added
μm 1.5 parts of carbon fibre, 0.3 part of silicon nitride, 0.4 part of aluminium nitride, 0.8 part of fatty acid, 6 parts of rice hull ash, 1 part of polyethylene glycol,
9 parts of polyvinyl alcohol are stirred 13min in the case where revolving speed is 100r/min, then are cooled to room temperature to obtain premix A；It will crosslinking height
75 parts of density polyethylene, 5.2 parts of polytetrafluoroethylene (PTFE), 5 parts of metallocene resin, calcium carbonate 4.5 part, that particle size is 0.4 μm
Talcum powder 2 part, paraffin 5 part, zinc oxide 7 part, titanium dioxide 6 part, 1- vinyl -3- butyl imidazole six of the diameter size for 1.0 μm
13 parts of fluorophosphate ionic liquid, 4 parts of silane coupling agent be stirred at 60 DEG C, setting speed of agitator be 300r/min, mix
Closing the time is that 18min obtains premix B；After premix B is cooled to room temperature be added premix A, 5 parts of expandable polystyrene,
Light stabilizer 622 is 1.8 parts dries after mixing 11min in the case where speed of agitator is 380r/min, is sent into pelletizer and be granulated
To cladding material；
The preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: being sent into inner layer material, cladding material in extruder and squeeze out, then
Be sent into mold in composite molding, cooling, sizing i.e. obtain internal layer and outer layer thickness than the corrosion-resistant high density polyethylene (HDPE) for 4:1 to
Water pipe.
Corrosion-resistant high density polyethylene (HDPE) feed pipe prepared by the present invention is subjected to corrosion test, as a result it is as shown in the table:
Embodiment 2
The preparation of crosslinked polyethylene: taking 2.5 parts of vinyltrimethoxysilane, dimethyl one, and the tertiary base hexin of a diperoxy draws
Hair 0.5 part of agent, 0.4 part of lauryl mercaptan dibutyl tin catalyst, antioxidant 1010 be 0.1 part be stirred it is uniformly mixed, so
It 100 parts of high density polyethylene (HDPE) is added afterwards carries out melting extrusion under the conditions of with screw speed being 60r/min at temperature is 200 DEG C and obtain
To crosslinking high density polyethylene (HDPE)；
The preparation of inner layer material: it takes 4 parts of zinc oxide, in 6 parts of addition batch mixers of titanium dioxide, stone is added after temperature is risen to 60 DEG C
2.5 parts of wax, 4.5 parts of polyethylene glycol, 10 parts of polypropylene grafted maleic anhydride, 1- hexyl -3- methyl imidazolium tetrafluoroborate ion
12 parts of insulated and stirreds of liquid mix 25min, then add 75 parts of high density polyethylene (HDPE) of crosslinking, 8.5 parts of polytetrafluoroethylene (PTFE), cyclopentadienyl gold
Belong to 7 parts of resin, 12 parts of polyvinyl alcohol carry out mixing 20min and obtain uniformly mixed material, uniformly mixed material addition is made
Grain machine is granulated to obtain inner layer material；
The preparation of cladding material: 130 DEG C are heated to by 8 parts of ethylene acrylic acid co polymer, 3.5 parts of carbon black, particle size 9 is added
μm 2 parts of carbon fibre, 0.4 part of silicon nitride, 0.3 part of aluminium nitride, 0.5 part of fatty acid, 8 parts of rice hull ash, 1.2 parts of polyethylene glycol,
10 parts of polyvinyl alcohol are stirred 10min in the case where revolving speed is 120r/min, then are cooled to room temperature to obtain premix A；It will crosslinking
70 parts of high density polyethylene (HDPE), 5.8 parts of polytetrafluoroethylene (PTFE), calcium carbonate 4 part, that 5.5 parts of particle sizes of metallocene resin are 0.2 μm
Talcum powder 3 part, paraffin 3.5 part, zinc oxide 6 part, titanium dioxide 8 part, 1- hexyl -3- methylimidazole four of the diameter size for 1.2 μm
12 parts of borofluoride ion liquid, 3 parts of silane coupling agent be stirred at 52 DEG C, setting speed of agitator be 200r/min, mix
Closing the time is that 19min obtains premix B；After premix B is cooled to room temperature be added premix A, 4 parts of expandable polystyrene,
Light stabilizer 770 is 1.5 parts dries after mixing 10.5min in the case where speed of agitator is 400r/min, is sent into pelletizer and is granulated
Obtain cladding material；
The preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: being sent into inner layer material, cladding material in extruder and squeeze out, then
Be sent into mold in composite molding, cooling, sizing i.e. obtain internal layer and outer layer thickness than the corrosion-resistant high density polyethylene (HDPE) for 4:1 to
Water pipe.
Corrosion-resistant high density polyethylene (HDPE) feed pipe prepared by the present invention is subjected to corrosion test, as a result it is as shown in the table:
Embodiment 3
The preparation of crosslinked polyethylene: 1 part of vinyltrimethoxysilane, 1 part of cumyl peroxide initiator, tin dilaurate are taken
Totally 0.3 part of dibutyl tin and lauryl mercaptan dibutyl tin catalyst, antioxidant 1010 be 0.18 part be stirred it is uniformly mixed,
Then 92 parts of high density polyethylene (HDPE) is added and carries out melting extrusion under the conditions of with screw speed being 60r/min at temperature is 190 DEG C
Obtain crosslinking high density polyethylene (HDPE)；
The preparation of inner layer material: it takes 5.5 parts of zinc oxide, in 7 parts of addition batch mixers of titanium dioxide, is added after temperature is risen to 60 DEG C
4 parts of paraffin, 5 parts of polyethylene glycol, 12 parts of polypropylene grafted maleic anhydride, 1- vinyl -3- butyl imidazole hexafluorophosphoric acid salt ion
8 parts of insulated and stirreds of liquid mix 23min, then add crosslinking 72 parts of high density polyethylene (HDPE), 8 parts of polytetrafluoroethylene (PTFE), metallocene
6.5 parts of resin, 11 parts of polyvinyl alcohol carry out mixing 22min and obtain uniformly mixed material, uniformly mixed material addition is made
Grain machine is granulated to obtain inner layer material；
The preparation of cladding material: 120 DEG C are heated to by 6 parts of ethylene acrylic acid co polymer, 3.8 parts of carbon black, particle size 7 is added
μm 1.2 parts of carbon fibre, 0.6 part of silicon nitride, 0.4 part of aluminium nitride, 0.7 part of fatty acid, 5 parts of rice hull ash, polyethylene glycol 1.8
9.5 parts of part, polyvinyl alcohol revolving speeds are to be stirred 11min under 200r/min, then are cooled to room temperature to obtain premix A；It will hand over
Join 73 parts of high density polyethylene (HDPE), 6 parts of polytetrafluoroethylene (PTFE), 4.5 parts of metallocene resin, particle size be 0.3 μm 3 parts of calcium carbonate,
Talcum powder 2.5 part, paraffin 4 part, zinc oxide 5 part, titanium dioxide 7 part, 1- hexyl -3- methylimidazole four of the particle size for 7 μm
15 parts of borofluoride ion liquid, 2 parts of silane coupling agent be stirred at 50 DEG C, setting speed of agitator be 250r/min, mix
Closing the time is that 20min obtains premix B；After premix B is cooled to room temperature be added premix A, 7 parts of expandable polystyrene,
Light stabilizer 944 is 1 part dries after mixing 11.5min in the case where speed of agitator is 300r/min, is sent into pelletizer and be granulated
To cladding material；
The preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: being sent into inner layer material, cladding material in extruder and squeeze out, then
Be sent into mold in composite molding, cooling, sizing i.e. obtain internal layer and outer layer thickness than the corrosion-resistant high density polyethylene (HDPE) for 4:1 to
Water pipe.
Corrosion-resistant high density polyethylene (HDPE) feed pipe prepared by the present invention is subjected to corrosion test, as a result it is as shown in the table:
Embodiment 4
The preparation of crosslinked polyethylene: 2 parts of vinyltrimethoxysilane, cumyl peroxide and dimethyl one, one or two mistakes are taken
Aoxidize tertiary totally 1.5 parts of base hexin initiator, 0.1 part of dibutyltin dilaurate catalyst, antioxidant 1010 be 0.15 part into
Row is uniformly mixed, be then added 98 parts of high density polyethylene (HDPE) be 180 DEG C in temperature at screw speed be 60r/min condition
Lower progress melting extrusion obtains crosslinking high density polyethylene (HDPE)；
The preparation of inner layer material: it takes 6 parts of zinc oxide, in 5 parts of addition batch mixers of titanium dioxide, stone is added after temperature is risen to 60 DEG C
3.5 parts of wax, 4 parts of polyethylene glycol, 11 parts of polypropylene grafted maleic anhydride, 1- hexyl -3- methyl imidazolium tetrafluoroborate ionic liquid
10 parts of insulated and stirreds of body mix 20min, then add crosslinking 70 parts of high density polyethylene (HDPE), 10 parts of polytetrafluoroethylene (PTFE), metallocene
6 parts of resin, 10 parts of polyvinyl alcohol carry out mixing 28min and obtain uniformly mixed material, material that will be uniformly mixed, which is added, to be granulated
Machine is granulated to obtain inner layer material；
The preparation of cladding material: being heated to 123 DEG C for 9 parts of ethylene acrylic acid co polymer, 3 parts of carbon black is added, particle size is 8 μm
1.8 parts of carbon fibre, 0.5 part of silicon nitride, 0.3 part of aluminium nitride, 0.9 part of fatty acid, 7 parts of rice hull ash, 1.5 parts of polyethylene glycol,
8.5 parts of revolving speeds of polyvinyl alcohol are to be stirred 15min under 180r/min, then are cooled to room temperature to obtain premix A；It will crosslinking height
72 parts of density polyethylene, 5 parts of polytetrafluoroethylene (PTFE), 4 parts of metallocene resin, 5 parts of the calcium carbonate that particle size is 0.5 μm, partial size are big
Small 1.5 parts of talcum powder for being 1.8 μm, 4.5 parts of paraffin, 6 parts of zinc oxide, 5 parts of titanium dioxide, 1- vinyl -3- butyl imidazole six
14 parts of fluorophosphate ionic liquid, 5 parts of silane coupling agent be stirred at 58 DEG C, setting speed of agitator be 220r/min, mix
Closing the time is that 18.5min obtains premix B；Premix A, expandable polystyrene 8 are added after premix B is cooled to room temperature
Part, light stabilizer 622 and light stabilizer 770 are dried for 1.2 parts totally after mixing 10min under speed of agitator is 350r/min, are sent into
Pelletizer is granulated to obtain cladding material；
The preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: being sent into inner layer material, cladding material in extruder and squeeze out, then
Be sent into mold in composite molding, cooling, sizing i.e. obtain internal layer and outer layer thickness than the corrosion-resistant high density polyethylene (HDPE) for 4:1 to
Water pipe.
Corrosion-resistant high density polyethylene (HDPE) feed pipe prepared by the present invention is subjected to corrosion test, as a result it is as shown in the table:
Embodiment 5
The preparation of crosslinked polyethylene: taking 1.5 parts of vinyltrimethoxysilane, cumyl peroxide and dimethyl one, and one or two
Totally 0.05 part of totally 2 parts of the tertiary base hexin initiator of peroxidating, dibutyl tin dilaurate and lauryl mercaptan dibutyl tin catalyst resist
Oxidant 1010 is 0.2 part and is stirred uniformly mixed, is then added at 90 parts of high density polyethylene (HDPE) is 170 DEG C in temperature with spiral shell
Bar revolving speed carries out melting extrusion and obtains crosslinking high density polyethylene (HDPE) under the conditions of being 60r/min；
The preparation of inner layer material: it takes 4.5 parts of zinc oxide, in 7 parts of addition batch mixers of titanium dioxide, is added after temperature is risen to 60 DEG C
2 parts of paraffin, 5.5 parts of polyethylene glycol, 8 parts of polypropylene grafted maleic anhydride, 1- vinyl -3- butyl imidazole hexafluorophosphate and 1-
Totally 9 parts of insulated and stirreds mix 30min to hexyl -3- methyl imidazolium tetrafluoroborate ionic liquid, then add crosslinking high density
74 parts of polyethylene, 9.5 parts of polytetrafluoroethylene (PTFE), 8 parts of metallocene resin, 10.5 parts of polyvinyl alcohol carry out mixing 25min mixed
Uniformly mixed material is added pelletizer and is granulated to obtain inner layer material by uniform material；
The preparation of cladding material: being heated to 128 DEG C for 10 parts of ethylene acrylic acid co polymer, 3.2 parts of carbon black is added, particle size is
7 μm of 1 part of carbon fibre, 0.4 part of silicon nitride, 0.3 part of aluminium nitride, 1 part of fatty acid, 6 parts of rice hull ash, 2 parts of polyethylene glycol, poly- second
8 parts of revolving speeds of enol are to be stirred 14min under 150r/min, then are cooled to room temperature to obtain premix A；Crosslinking high density is gathered
74 parts of ethylene, 5.5 parts of polytetrafluoroethylene (PTFE), 6 parts of metallocene resin, 3.5 parts of the calcium carbonate that particle size is 0.2 μm, particle size
For 1.5 μm of 1 part of talcum powder, 3 parts of paraffin, 8 parts of zinc oxide, 7 parts of titanium dioxide, 1- vinyl -3- butyl imidazole hexafluorophosphoric acid
Totally 13 parts, 6 parts of silane coupling agent of salt and 1- hexyl -3- methyl imidazolium tetrafluoroborate ionic liquid are stirred at 55 DEG C,
Setting speed of agitator is 280r/min, and incorporation time is that 19.5min obtains premix B；It is added after premix B is cooled to room temperature
Premix A, 6 parts of expandable polystyrene, light stabilizer 770 and light stabilizer 944 totally 2 parts speed of agitator be 320r/min under
It is dried after mixing 12min, is sent into pelletizer and is granulated to obtain cladding material；
The preparation of corrosion-resistant high density polyethylene (HDPE) feed pipe: being sent into inner layer material, cladding material in extruder and squeeze out, then
Be sent into mold in composite molding, cooling, sizing i.e. obtain internal layer and outer layer thickness than the corrosion-resistant high density polyethylene (HDPE) for 4:1 to
Water pipe.
Corrosion-resistant high density polyethylene (HDPE) feed pipe prepared by the present invention is subjected to corrosion test, as a result it is as shown in the table:
The above embodiment of the present invention scheme is only the description of the invention and cannot limit the present invention, this is indicated in claim
Invention product form ingredient, component ratio, the range of preparation method parameter, and above-mentioned explanation does not point out parameter of the present invention
Range, therefore, any change within the meaning and scope equivalent to the claims of the present invention, be all considered to be including
Within the scope of the claims.
The present invention is created by multidigit tubular object extruding personnel's long-term work experience accumulation, and by creative work
Out, the feed pipe that the present invention is prepared has preferable corrosion resistance to acid and alkali corrosion medium, can effectively extend feed pipe
Service life, while feed pipe toughness with higher and higher intensity, light weight, biocidal property are strong, circulation is big, peace
Dress is easy, is suitable for producing in enormous quantities.
Claims (10)
1. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe, the corrosion-resistant high density polyethylene (HDPE) feed pipe include internal layer and
Outer layer, characterized in that each constituent of internal layer raw material and its weight fraction ratio are as follows: crosslinking high density polyethylene (HDPE) 70 ~ 75
Part, 8 ~ 10 parts of polytetrafluoroethylene (PTFE), 6 ~ 8 parts of metallocene resin, 10 ~ 12 parts of polyvinyl alcohol, 2 ~ 4 parts of paraffin, 4 ~ 6 parts of zinc oxide, two
5 ~ 8 parts of titanium oxide, 4 ~ 6 parts of polyethylene glycol, 8 ~ 12 parts of polypropylene grafted maleic anhydride, 8 ~ 12 parts of imidazole type ion liquid；
Each constituent of outer layer raw material and its weight fraction ratio are as follows: crosslinking 70 ~ 75 parts of high density polyethylene (HDPE), polytetrafluoroethyl-ne
5 ~ 6 parts of alkene, 4 ~ 6 parts of metallocene resin, 8 ~ 10 parts of polyvinyl alcohol, 3 ~ 5 parts of paraffin, 5 ~ 8 parts of zinc oxide, 5 ~ 8 parts of titanium dioxide, can
4 ~ 8 parts of polystyrene of hair property, 3 ~ 4 parts of carbon black, 3 ~ 5 parts of calcium carbonate, 1 ~ 3 part of talcum powder, 1 ~ 2 part of carbon fibre, silicon nitride 0.3 ~
0.6 part, 0.3 ~ 0.4 part of aluminium nitride, 0.5 ~ 1 part of fatty acid, 5 ~ 8 parts of rice hull ash, 1 ~ 2 part of polyethylene glycol, ethylene-acrylic acid copolymer
6 ~ 12 parts of object, 12 ~ 15 parts of imidazole type ion liquid, 2 ~ 6 parts of silane coupling agent, 1 ~ 2 part of light stabilizer；
The corrosion-resistant high density polyethylene (HDPE) water supply inner tube layer and outer layer thickness ratio is 4:1.
2. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the high density is poly-
Ethylene is PE100 grades.
3. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the carbonic acid calcium grain
Diameter size is 0.2 ~ 0.5 μm.
4. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the talcum powder
Diameter size is 1.0 ~ 2.0 μm.
5. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the carbon fibre
Particle size is 7 ~ 10 μm.
6. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the light stabilizer
For the combination of one or more of light stabilizer 622, light stabilizer 770, light stabilizer 944.
7. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1, characterized in that the imidazole type from
Sub- liquid is one of 1- vinyl -3- butyl imidazole hexafluorophosphate, 1- hexyl -3- methyl imidazolium tetrafluoroborate or two
The combination of kind.
8. a kind of prepare a kind of method of corrosion-resistant high density polyethylene (HDPE) feed pipe as described in claim 1, characterized in that packet
Include following steps:
The preparation of step 1) crosslinked polyethylene: 1 ~ 3 part of vinyltrimethoxysilane, 0.01 ~ 2 part of initiator, catalyst are taken
0.05 ~ 0.5 part, antioxidant 1010 be 0.1 ~ 0.2 part be stirred it is uniformly mixed, then be added high density polyethylene (HDPE) 90 ~ 100
Progress melting extrusion obtains being crosslinked high-density polyethylene part under the conditions of with screw speed be 60r/min at temperature be 170 ~ 200 DEG C
Alkene；
The preparation of step 2) inner layer material: it takes 4 ~ 6 parts of zinc oxide, in 5 ~ 8 parts of addition batch mixers of titanium dioxide, temperature is risen to 60
2 ~ 4 parts of paraffin, 4 ~ 6 parts of polyethylene glycol, 8 ~ 12 parts of polypropylene grafted maleic anhydride, 8 ~ 12 parts of imidazole type ion liquid are added after DEG C
Insulated and stirred mixes 20 ~ 30min, takes crosslinking 70 ~ 75 parts of high density polyethylene (HDPE), 8 ~ 10 parts of polytetrafluoroethylene (PTFE), metallocene resin 6 ~ 8
Part, 10 ~ 12 parts of polyvinyl alcohol carry out 20 ~ 30min of mixing and obtain uniformly mixed material, and uniformly mixed material addition is made
Grain machine is granulated to obtain inner layer material；
The preparation of step 3) cladding material: 120 ~ 130 DEG C are heated to by 6 ~ 12 parts of ethylene acrylic acid co polymer, carbon black 3 ~ 4 is added
Part, is gathered at 1 ~ 2 part of carbon fibre, 0.3 ~ 0.6 part of silicon nitride, 0.3 ~ 0.4 part of aluminium nitride, 0.5 ~ 1 part of fatty acid, 5 ~ 8 parts of rice hull ash
1 ~ 2 part of ethylene glycol, 8 ~ 10 parts of polyvinyl alcohol are stirred 10 ~ 15min in the case where revolving speed is 100 ~ 200r/min, are subsequently cooled to
Room temperature obtains premix A；70 ~ 75 parts of high density polyethylene (HDPE), 5 ~ 6 parts of polytetrafluoroethylene (PTFE), 4 ~ 6 parts of metallocene resin, carbon will be crosslinked
3 ~ 5 parts of sour calcium, 1 ~ 3 part of talcum powder, 3 ~ 5 parts of paraffin, 5 ~ 8 parts of zinc oxide, 5 ~ 8 parts of titanium dioxide, imidazole type ion liquid 12 ~ 15
Part, 2 ~ 6 parts of silane coupling agent be stirred at 50 ~ 60 DEG C, setting speed of agitator be 200 ~ 300r/min, incorporation time 18
~ 20min obtains premix B；Premix A, 4 ~ 8 parts of expandable polystyrene, light are added after premix B is cooled to room temperature to stablize
1 ~ 2 part of agent dries after mixing 10 ~ 12min under speed of agitator is 300 ~ 400r/min, and feeding pelletizer is granulated to obtain outer
Layer material；
The preparation of the corrosion-resistant high density polyethylene (HDPE) feed pipe of step 4): inner layer material, cladding material are sent into extruder and are carried out
Squeeze out, be re-fed into composite molding in mold, cooling, sizing obtain corrosion-resistant high density polyethylene (HDPE) feed pipe.
9. the method according to claim 8 for preparing corrosion-resistant high density polyethylene (HDPE) feed pipe, characterized in that described draws
Hair agent is cumyl peroxide, dimethyl one, the combination of one or both of tertiary base hexin of a diperoxy；Described urges
Agent is the combination of one or both of dibutyl tin dilaurate, lauryl mercaptan dibutyl tin.
10. a kind of corrosion-resistant high density polyethylene (HDPE) feed pipe according to claim 1 can be applied to building water supply, row
Water, the conveying of cities and towns tap water, municipal drainage, blowdown, Study of Related Policy On Drinking Water For People And Livestock In The Countryside transformation, the numerous areas such as agricultural irrigation, draining.
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| CN112625327A (en) * | 2020-12-24 | 2021-04-09 | 甘肃海纳塑业有限公司 | PE water supply pipe and production method thereof |
| CN115519863A (en) * | 2022-10-25 | 2022-12-27 | 广东瑞远新材料有限公司 | Easily-regenerated environment-friendly polyethylene composite pipe and preparation method thereof |
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