CN106589547A - PE-RT (polyethylene of raised temperature resistance) floor heating pipe and production method and application thereof - Google Patents
PE-RT (polyethylene of raised temperature resistance) floor heating pipe and production method and application thereof Download PDFInfo
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- CN106589547A CN106589547A CN201611161084.2A CN201611161084A CN106589547A CN 106589547 A CN106589547 A CN 106589547A CN 201611161084 A CN201611161084 A CN 201611161084A CN 106589547 A CN106589547 A CN 106589547A
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 45
- 229920000573 polyethylene Polymers 0.000 title claims abstract description 15
- -1 polyethylene Polymers 0.000 title abstract description 6
- 238000004519 manufacturing process Methods 0.000 title abstract description 5
- 239000004698 Polyethylene (PE) Substances 0.000 title abstract description 4
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 27
- 239000004917 carbon fiber Substances 0.000 claims abstract description 27
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 25
- 239000010439 graphite Substances 0.000 claims abstract description 25
- 238000002360 preparation method Methods 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 14
- 239000000843 powder Substances 0.000 claims description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Natural products OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 10
- 239000004615 ingredient Substances 0.000 claims description 10
- 229920002521 Macromolecule Polymers 0.000 claims description 6
- BLRPTPMANUNPDV-UHFFFAOYSA-N silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims description 6
- 229910000077 silane Inorganic materials 0.000 claims description 6
- 238000001125 extrusion Methods 0.000 claims description 5
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- GRYLNZFGIOXLOG-UHFFFAOYSA-N nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 5
- 239000002994 raw material Substances 0.000 claims description 5
- 230000003078 antioxidant Effects 0.000 claims description 4
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 150000002989 phenols Chemical class 0.000 claims description 4
- 239000004014 plasticizer Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 claims description 3
- DOIRQSBPFJWKBE-UHFFFAOYSA-N Dibutyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 2
- SSDSCDGVMJFTEQ-UHFFFAOYSA-N octadecyl 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CCCCCCCCCCCCCCCCCCOC(=O)CCC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 SSDSCDGVMJFTEQ-UHFFFAOYSA-N 0.000 claims description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims 2
- LNETULKMXZVUST-UHFFFAOYSA-M 1-naphthoate Chemical compound C1=CC=C2C(C(=O)[O-])=CC=CC2=C1 LNETULKMXZVUST-UHFFFAOYSA-M 0.000 claims 1
- NIQCNGHVCWTJSM-UHFFFAOYSA-N Dimethyl phthalate Chemical compound COC(=O)C1=CC=CC=C1C(=O)OC NIQCNGHVCWTJSM-UHFFFAOYSA-N 0.000 claims 1
- 229960001826 dimethylphthalate Drugs 0.000 claims 1
- 239000003960 organic solvent Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000003247 decreasing Effects 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000002131 composite material Substances 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000005453 pelletization Methods 0.000 description 4
- MJKNHXCPGXUEDO-UHFFFAOYSA-N 3,5-ditert-butylaniline Chemical class CC(C)(C)C1=CC(N)=CC(C(C)(C)C)=C1 MJKNHXCPGXUEDO-UHFFFAOYSA-N 0.000 description 3
- FYIBGDKNYYMMAG-UHFFFAOYSA-N ethane-1,2-diol;terephthalic acid Chemical compound OCCO.OC(=O)C1=CC=C(C(O)=O)C=C1 FYIBGDKNYYMMAG-UHFFFAOYSA-N 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011256 inorganic filler Substances 0.000 description 1
- 229910003475 inorganic filler Inorganic materials 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/10—Esters; Ether-esters
- C08K5/12—Esters; Ether-esters of cyclic polycarboxylic acids
-
- 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
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/02—Ingredients treated with inorganic substances
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
-
- 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
-
- 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
-
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The invention provides a PE-RT (polyethylene of raised temperature resistance) floor heating pipe and a production method thereof. By adding graphite and carbon fiber, heat conductivity coefficient of the PE-RT pipe is greatly increased, heat conductivity of the PE-RT floor heating pipe is improved, heat efficiency can be effectively improved, energy waste is avoided, expansion coefficient and shrinkage rate of the PE-RT pipe are decreased, the floor heating pipe can keep sufficient in size stability upon heating or cooling, frictional coefficient of the PE-RT pipe is decreased, the scaling problem of the floor heating pipe is effectively relived, and the PE-RT floor heating pipe is widely applicable to ground radiation refrigerating and heating coils.
Description
Technical field
The present invention relates to floor heating pipeline tubing, more particularly to a kind of PE-RT ground heating pipes and its preparation method and application.
Background technology
With the development of commercial production and science and technology, traditional metal heat-conducting material is as its corrosion resistance is poor and leads
Electricity, has been restricted in some specific areas, replaces each used in traditional industry with the macromolecular material of synthetic
Plant material, particularly metal material, it has also become one of direction that world's scientific research is made great efforts.Due to macromolecular material be mostly heat not
Good conductor, in order to manufacture the Heat Conduction Material with excellent comprehensive performance, typically all with metal or the inorganic filler of high-termal conductivity
Macromolecular material is filled.The Heat Conduction Material that so obtains is cheap, easy processing molding, through appropriate PROCESS FOR TREATMENT
Or formula adjustment can apply to some special dimensions.
Polythene material insulate, but used as Heat Conduction Material, polythene material is usually inefficient, because polyethylene
It is the non-conductor of heat, polythene material heat conductivity is about 0.4w/ (mK), is the 1/500～1/600 of metal.Foaming is poly-
The heat conductivity of vinyl plastics only has 0.02～0.046w/ (mK), about the 1/1500 of metal, and the 1/40 of cement concrete,
The 1/20 of common brick, is preferable adiabator, will expand its application in field of heating, it is necessary to which polythene material is entered
Row is modified.
And the heat conductivity of graphite is 129W/ (mK), and graphite high temperature resistant, thermal coefficient of expansion is minimum, chemically stable
Property is good.Using the graphite-filled PE-RT of high thermal conductivity coefficient, and add a certain amount of carbon fiber, high heat conduction, high intensity can be prepared
PE-RT is material modified.
The content of the invention
In view of this, the present invention proposes good PE-RT ground heating pipes of a kind of heat conductivity and its preparation method and application.
The technical scheme is that what is be achieved in that：On the one hand, the invention provides a kind of PE-RT ground heating pipes, its
Including the raw material components of following weight portion,
On the basis of above technical scheme, it is preferred that the heat-proof polythene is that II types heat-proof polythene or I types are heat-resisting
One kind in polyethylene.
On the basis of above technical scheme, it is preferred that the silane coupler is KH550, KH560, KH570, KH792
In one kind.
The plasticizer is polyethylene terephthalate, poly- dibutyl phthalate, poly- phthalic acid diformazan
One kind in ester.
The Hinered phenols antioxidant is 2,6- di-t-butyls-PAP, the one kind in antioxidant 1076.
On the other hand, the invention provides the preparation method of PE-RT ground heating pipes described in first aspect present invention, including
Following steps,
S1, carries out pretreatment to graphite and carbon fiber.First the graphite and carbon fiber are placed in nitric acid, are added organic molten
Agent, the pretreatment 5h at 120 DEG C, is subsequently adding silane coupler, then processes 3h at 165 DEG C, is ground into powder；
S2, the preparation of high-heat-conductive composite material.The powder that step S1 is obtained is mixed after adding macromolecule wax, is obtained
Mixed ingredients；
S3, prepares the PE-RT heat conduction master batches of graphite, carbon fiber modifying.By mixed ingredients, Hinered phenols antioxidant, plasticizer,
Heat-proof polythene carries out extruding pelletization in adding double screw extruder, obtains the PE-RT heat conduction master batches of graphite, carbon fiber modifying.
Preferably, the macromolecule wax weight in step S2 obtains the 4%～6% of powder for step S1.
It is 100 ± 5 DEG C that double screw extruder blanking section temperature is controlled in the step S3 granulation process, one area's temperature of barrel
For 125 ± 5 DEG C, two area's temperature are 130 ± 5 DEG C, and three area's temperature are 135 ± 5 DEG C, and four area's temperature are 140 ± 5 DEG C, five area's temperature
For 145 ± 5 DEG C, six area's temperature are 150 ± 5 DEG C, and seven area's temperature are 155 ± 5 DEG C, and eight area's temperature are 150 ± 5 DEG C, nine area's temperature
For 140 ± 5 DEG C, screw speed is 300rpm～400rpm.
Also include step S4, the preparation of the good PE-RT ground heating pipes of heat conductivity.Step S3 is obtained with single screw extrusion machine
Graphite, the PE-RT heat conduction master batches of carbon fiber modifying be fabricated to PE-RT tubing, one area's temperature of extruder barrel is 185 ± 5 DEG C,
Two area's temperature are 195 ± 5 DEG C, and three area's temperature are 200 ± 5 DEG C, and four area's temperature are 205 ± 5 DEG C, and five area's temperature are 210 ± 5 DEG C,
Six area's temperature are 215 ± 5 DEG C, and seven area's temperature are 215 ± 5 DEG C, and eight area's temperature are 220 ± 5 DEG C, and nine area's temperature are 120 ± 5 DEG C,
Screw speed is 70rpm～90rpm, obtains PE-RT ground heating pipes.
The third aspect, the PE-RT ground heating pipes described in first aspect present invention are in terrestrial surface radiation refrigeration, heating coil
Using.
PE-RT ground heating pipes of the present invention and preparation method thereof are had the advantages that relative to prior art：Pass through
After with the addition of graphite and carbon fiber, the heat conductivity of PE-RT pipelines is greatly improved, and improves the thermal conductivity of PE-RT floor heating pipes,
The thermal efficiency can effectively be improved, it is to avoid energy waste, reduce the coefficient of expansion and shrinkage factor of PE-RT tubing, make floor heating pipe be heated
With can keep enough dimensional stabilitys when catching a cold, reduce the coefficient of friction of PE-RT pipelines, effectively reduce the knot of floor heating pipe
Dirty problem, can be widely used for terrestrial surface radiation refrigeration, heating coil.
Specific embodiment
Below in conjunction with embodiment of the present invention, technical solution of the present invention is clearly and completely described, it is clear that institute
The embodiment of description is only a part of embodiment of the invention, rather than the embodiment of whole.Based in the present invention
Embodiment, the every other embodiment party obtained under the premise of creative work is not made by those of ordinary skill in the art
Formula, belongs to the scope of protection of the invention.
In embodiment of the present invention 1-3, PE-RT used is the product of Sinopec Shandong petrochemical industry company limited production,
Model QHM22F；Carbon fiber uses the product of toray company.
Embodiment 1
The PE-RT ground heating pipes of the present embodiment, which includes following raw material components,
Preparation process is as follows：
S1, carries out pretreatment to graphite and carbon fiber.First the graphite and carbon fiber are placed in nitric acid, ethanol is added,
The pretreatment 5h at 120 DEG C, is subsequently adding Silane coupling agent KH550, then processes 3h at 165 DEG C, is ground into powder.
S2, the preparation of high-heat-conductive composite material.The macromolecule of 5% parts by weight is added in the powder that step S1 is obtained
Wax, 1200 revs/min of mixing velocity, mixing were taken out after 5 minutes, obtained mixed ingredients.
S3, prepares the PE-RT heat conduction master batches of graphite, carbon fiber modifying.By mixed ingredients, 2,6- di-t-butyl -4- aminobenzenes
Phenol, ethylene glycol terephthalate carry out extruding pelletization in adding double screw extruder, obtain the PE- of graphite, carbon fiber modifying
RT heat conduction master batches.Double screw extruder blanking section temperature is controlled in granulation process for 100 DEG C, one area's temperature of barrel is 125 DEG C, two
Area's temperature is 130 DEG C, and three area's temperature are 135 DEG C, and four area's temperature are 140 DEG C, and five area's temperature are 145 DEG C, and six area's temperature are 150
DEG C, seven area's temperature are 155 DEG C, and eight area's temperature are 150 DEG C, and nine area's temperature are 140 DEG C, and screw speed is 350rpm.
Step S4, the preparation of the good PE-RT ground heating pipes of heat conductivity.Stone step S3 obtained with single screw extrusion machine
Ink, the PE-RT heat conduction master batches of carbon fiber modifying are fabricated to PE-RT tubing, and one area's temperature of extruder barrel is 185 DEG C, two area's temperature
Spend for 195 DEG C, three area's temperature are 200 DEG C, four area's temperature are 205 DEG C, five area's temperature are 210 DEG C, six area's temperature are 215 DEG C, seven
Area's temperature is 215 DEG C, and eight area's temperature are 225 DEG C, and nine area's temperature are 120 DEG C, and screw speed is 80rpm, obtains PE-RT floor heating pipes
Material.
Embodiment 2
The PE-RT ground heating pipes of the present embodiment, which includes following raw material components,
Preparation process is as follows：
S1, carries out pretreatment to graphite and carbon fiber.First the graphite and carbon fiber are placed in nitric acid, ethanol is added,
The pretreatment 6h at 100 DEG C, is subsequently adding silane coupler KH560, then processes 3h at 155 DEG C, is ground into powder.
S2, the preparation of high-heat-conductive composite material.The macromolecule of 4% parts by weight is added in the powder that step S1 is obtained
Wax, 1200 revs/min of mixing velocity, mixing were taken out after 5 minutes, obtained mixed ingredients.
S3, prepares the PE-RT heat conduction master batches of graphite, carbon fiber modifying.By mixed ingredients, 2,6- di-t-butyl -4- aminobenzenes
Phenol, ethylene glycol terephthalate carry out extruding pelletization in adding double screw extruder, obtain the PE- of graphite, carbon fiber modifying
RT heat conduction master batches.It is that 103 DEG C of one area's temperature of barrel are 121 DEG C, two that double screw extruder blanking section temperature is controlled in granulation process
Area's temperature is 133 DEG C, and three area's temperature are 135 DEG C, and four area's temperature are 143 DEG C, and five area's temperature are 148 DEG C, and six area's temperature are 151
DEG C, seven area's temperature are 157 DEG C, and eight area's temperature are 153 DEG C, and nine area's temperature are 142 DEG C, and screw speed is 380rpm.
Step S4, the preparation of the good PE-RT ground heating pipes of heat conductivity.Stone step S3 obtained with single screw extrusion machine
Ink, the PE-RT heat conduction master batches of carbon fiber modifying are fabricated to PE-RT tubing, and one area's temperature of extruder barrel is 185 DEG C, two area's temperature
Spend for 195 DEG C, three area's temperature are 200 DEG C, four area's temperature are 205 DEG C, five area's temperature are 210 DEG C, six area's temperature are 215 DEG C, seven
Area's temperature is 215 DEG C, and eight area's temperature are 220 DEG C, and nine area's temperature are 120 DEG C, and screw speed is 90rpm, obtains PE-RT floor heating pipes
Material.
Embodiment 3
The PE-RT ground heating pipes of the present embodiment, which includes following raw material components,
Preparation process is as follows：
S1, carries out pretreatment to graphite and carbon fiber.First the graphite and carbon fiber are placed in nitric acid, ethanol is added,
The pretreatment 5h at 115 DEG C, is subsequently adding silane coupler KH792, then processes 2h at 170 DEG C, is ground into powder.
S2, the preparation of high-heat-conductive composite material.The macromolecule of 5% parts by weight is added in the powder that step S1 is obtained
Wax, 1200 revs/min of mixing velocity, mixing were taken out after 5 minutes, obtained mixed ingredients.
S3, prepares the PE-RT heat conduction master batches of graphite, carbon fiber modifying.By mixed ingredients, 2,6- di-t-butyl -4- aminobenzenes
Phenol, ethylene glycol terephthalate carry out extruding pelletization in adding double screw extruder, obtain the PE- of graphite, carbon fiber modifying
RT heat conduction master batches.It is that 105 DEG C of one area's temperature of barrel are 125 DEG C, two that double screw extruder blanking section temperature is controlled in granulation process
Area's temperature is 135 DEG C, and three area's temperature are 140 DEG C, and four area's temperature are 145 DEG C, and five area's temperature are 150 DEG C, and six area's temperature are 155
DEG C, seven area's temperature are 155 DEG C, and eight area's temperature are 150 DEG C, and nine area's temperature are 145 DEG C, and screw speed is 380rpm.
Step S4, the preparation of the good PE-RT ground heating pipes of heat conductivity.Stone step S3 obtained with single screw extrusion machine
Ink, the PE-RT heat conduction master batches of carbon fiber modifying are fabricated to PE-RT tubing, and one area's temperature of extruder barrel is 185 DEG C, two area's temperature
Spend for 195 DEG C, three area's temperature are 200 DEG C, four area's temperature are 205 DEG C, five area's temperature are 210 DEG C, six area's temperature are 215 DEG C, seven
Area's temperature is 215 DEG C, and eight area's temperature are 220 DEG C, and nine area's temperature are 120 DEG C, and screw speed is 80rpm, obtains PE-RT floor heating pipes
Material.
By embodiment 1-3 prepare heat conduction PE-RT tubing and common PE-RT tubing press GB/T28799.1-2012 with
The property indices of GB/T10297-1998 test sample tubes, testing result are as shown in the table：
The better embodiment of the present invention is the foregoing is only, it is not to limit the present invention, all the present invention's
Within spirit and principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (10)
1. a kind of PE-RT ground heating pipes, it is characterised in that：Which includes the raw material components of following weight portion,
2. the preparation method of PE-RT ground heating pipes as claimed in claim 1, it is characterised in that：The heat-proof polythene is II
One kind in type heat-proof polythene or I type heat-proof polythenes.
3. the preparation method of PE-RT ground heating pipes as claimed in claim 1, it is characterised in that：The silane coupler is
One kind in KH550, KH560, KH570, KH792.
4. the preparation method of PE-RT ground heating pipes as claimed in claim 1, it is characterised in that：The plasticizer is for poly- to benzene
One kind in naphthalate, poly- dibutyl phthalate, poly- dimethyl phthalate.
5. the preparation method of PE-RT ground heating pipes as claimed in claim 1, it is characterised in that：The Hinered phenols antioxidant
For the one kind in 2,6- di-t-butyls-PAP, antioxidant 1076.
6. the preparation method of PE-RT ground heating pipes as claimed in claim 1, it is characterised in that：Comprise the following steps,
S1, is first placed in the graphite and carbon fiber in nitric acid, adds organic solvent, at 90 DEG C～150 DEG C pretreatment 3～
6h, is subsequently adding silane coupler, then processes 2h～4h at 130 DEG C～170 DEG C, is ground into powder；
S2, the powder that step S1 is obtained are mixed after adding macromolecule wax, obtain mixed ingredients；
S3, makes extrusion is carried out in mixed ingredients, Hinered phenols antioxidant, plasticizer, heat-proof polythene addition double screw extruder
Grain, obtains the PE-RT heat conduction master batches of graphite, carbon fiber modifying.
7. the preparation method of PE-RT ground heating pipes as claimed in claim 6, it is characterised in that：High score in step S2
Sub- wax weight obtains the 4%～6% of powder for step S1.
8. the preparation method of PE-RT ground heating pipes as claimed in claim 6, it is characterised in that：The step S3 granulation process
For 100 ± 5 DEG C, one area's temperature of barrel is 125 ± 5 DEG C to the middle double screw extruder blanking section temperature that controls, two area's temperature are 130 ±
5 DEG C, three area's temperature are 135 ± 5 DEG C, and four area's temperature are 140 ± 5 DEG C, and five area's temperature are 145 ± 5 DEG C, and six area's temperature are 150 ± 5
DEG C, seven area's temperature are 155 ± 5 DEG C, and eight area's temperature are 150 ± 5 DEG C, and nine area's temperature are 140 ± 5 DEG C, and screw speed is 300rpm
～400rpm.
9. the preparation method of PE-RT ground heating pipes as claimed in claim 6, it is characterised in that：Also include step S4, use single spiral shell
Graphite that step S3 is obtained by bar extruder, the PE-RT heat conduction master batches of carbon fiber modifying are fabricated to PE-RT tubing, extruder material
One area's temperature of cylinder is 185 ± 5 DEG C, and two area's temperature are 195 ± 5 DEG C, and three area's temperature are 200 ± 5 DEG C, and four area's temperature are 205 ± 5
DEG C, five area's temperature are 210 ± 5 DEG C, and six area's temperature are 215 ± 5 DEG C, and seven area's temperature are 215 ± 5 DEG C, and eight area's temperature are 220 ± 5
DEG C, nine area's temperature are 120 ± 5 DEG C, and screw speed is 70rpm～90rpm, obtains PE-RT ground heating pipes.
10. application of the PE-RT ground heating pipes as claimed in claim 1 in terrestrial surface radiation refrigeration, heating coil.
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| CN201611161084.2A CN106589547A (en) | 2016-12-15 | 2016-12-15 | PE-RT (polyethylene of raised temperature resistance) floor heating pipe and production method and application thereof |
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Application publication date: 20170426 |