CN106009236A - Method for preparing organosilane-crosslinked-polyethylene insulation material for electric wire of 10 kV or below with double-step method - Google Patents
Method for preparing organosilane-crosslinked-polyethylene insulation material for electric wire of 10 kV or below with double-step method Download PDFInfo
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- CN106009236A CN106009236A CN201610548057.4A CN201610548057A CN106009236A CN 106009236 A CN106009236 A CN 106009236A CN 201610548057 A CN201610548057 A CN 201610548057A CN 106009236 A CN106009236 A CN 106009236A
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- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 24
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 24
- 239000012774 insulation material Substances 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 53
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 28
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910000077 silane Inorganic materials 0.000 claims abstract description 26
- 239000003054 catalyst Substances 0.000 claims abstract description 22
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 7
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 7
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 7
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 7
- 239000002671 adjuvant Substances 0.000 claims description 16
- 150000001282 organosilanes Chemical class 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 10
- 238000001125 extrusion Methods 0.000 claims description 9
- 238000005453 pelletization Methods 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 239000008187 granular material Substances 0.000 claims description 6
- 229920003023 plastic Polymers 0.000 claims description 6
- 239000004033 plastic Substances 0.000 claims description 6
- 239000000779 smoke Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000000151 deposition Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 5
- 239000003431 cross linking reagent Substances 0.000 abstract description 3
- 231100000252 nontoxic Toxicity 0.000 abstract description 3
- 230000003000 nontoxic effect Effects 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 239000004743 Polypropylene Substances 0.000 abstract description 2
- HCILJBJJZALOAL-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)-n'-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyl]propanehydrazide Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 HCILJBJJZALOAL-UHFFFAOYSA-N 0.000 abstract 1
- GHKOFFNLGXMVNJ-UHFFFAOYSA-N Didodecyl thiobispropanoate Chemical compound CCCCCCCCCCCCOC(=O)CCSCCC(=O)OCCCCCCCCCCCC GHKOFFNLGXMVNJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000006087 Silane Coupling Agent Substances 0.000 abstract 1
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 abstract 1
- 239000005038 ethylene vinyl acetate Substances 0.000 abstract 1
- 229920001973 fluoroelastomer Polymers 0.000 abstract 1
- 239000000047 product Substances 0.000 description 17
- 230000005611 electricity Effects 0.000 description 9
- 238000004132 cross linking Methods 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007850 degeneration Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 229920001903 high density polyethylene Polymers 0.000 description 2
- 239000004700 high-density polyethylene Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000004781 supercooling Methods 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- BLDFSDCBQJUWFG-UHFFFAOYSA-N 2-(methylamino)-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(NC)C(O)C1=CC=CC=C1 BLDFSDCBQJUWFG-UHFFFAOYSA-N 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004925 denaturation Methods 0.000 description 1
- 230000036425 denaturation Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229920001179 medium density polyethylene Polymers 0.000 description 1
- 239000004701 medium-density polyethylene Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 238000009757 thermoplastic moulding Methods 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
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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
- C08L23/08—Copolymers of ethene
- C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms
- C08L23/0815—Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms with aliphatic 1-olefins containing one carbon-to-carbon double bond
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/20—Compounding polymers with additives, e.g. colouring
- C08J3/22—Compounding polymers with additives, e.g. colouring using masterbatch techniques
- C08J3/226—Compounding polymers with additives, e.g. colouring using masterbatch techniques using a polymer as a carrier
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2323/04—Homopolymers or copolymers of ethene
- C08J2323/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2423/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
- C08J2423/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
- C08J2423/04—Homopolymers or copolymers of ethene
- C08J2423/08—Copolymers of ethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
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- C08L2205/00—Polymer mixtures characterised by other features
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- 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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- C08L2312/08—Crosslinking by silane
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- Organic Insulating Materials (AREA)
Abstract
The invention relates to the field of insulation materials, in particular to an organosilane-crosslinked-polyethylene insulation material for an electric wire of 10 kV or below. A method for preparing the organosilane-crosslinked-polyethylene insulation material for the electric wire of 10 kV or below with the double-step method mainly includes the steps of 1, preparing a catalyst master batch; 2, preparing a finished product. The organosilane-crosslinked-polyethylene insulation material is prepared from, by weight, LLDPE-7042, LLDPE-8320, LDPE, EVA, PP, silane coupling agent, cross-linking agent DCP, antioxidant 300, antioxidant 1010, antioxidant DLTP, antioxidant 1024, organotin and a fluoro rubber master batch. The organosilane-crosslinked-polyethylene insulation material is mainly used for an insulation layer of a cable to replace a present PVC material, the insulation performance is superior to the insulation performance of PVC, PVC can discharge toxic and harmful gas when an electric wire is aged and fired, and the silane insulation material is nontoxic and harmless.
Description
Technical field
The present invention relates to insulant field, particularly relate to 10kV and following electric wire organosilane crosslinked polyethylene insulation material.
Background technology
Cable industry uses polyolefinic kind mainly to have PE, PP, EVA and EEA etc., and wherein relative quantity is big, applicating history is long
Mainly PE, it has HDPE, MDPE, LDPE, LLDPE and the XLPE through crosslinking, and their application does not the most need to speak more.
In industry, the most polyolefinic application and development trend are concentrated mainly on following several respects:
(1) seriation of low smoke, zero halogen material, improvement
Halide-free low-smoke fireproof cable material is development in recent years kind faster, has met the thermoplastic moulding mixture of IEC92-359 standard-required
Increasingly it is widely applied.Use occasion along with oil platform, nuclear power station, cable for ship and other bad environments
Requirement, the range of application of cross-linking type low smoke, zero halogen CABLE MATERIALS will be increasing.
(2) resistance to electricity trace material
Resistance to electricity trace CABLE MATERIALS is as the popularization and application of ADSS (All Dielectric Self-Supporting Aerial Optical Fiber Cable), and gradually causes everybody note
Meaning.In fact, the trace requirement of resistance to electricity is had for producing corona under preventing at damp condition, due to it at 10kV and above aerial cable
Insulant (XLPE, HDPE) itself has certain resistance to electricity trace, substantially can guarantee that the requirement of aerial cable resistance to electricity trace, therefore
And problem does not highlight.And ADSS mainly sets up along the high-tension line of 110KV, 220KV, the electric erosion resistance of its sheath will
Directly affect cable lifetime, therefore the resistance to electricity trace of sheath material is had more harsh requirement, i.e. apply actually used pulling force
In the case of 90% tension force, carrying out the resistance to electricity trace test of 1000 hours, it needs this custom-designed formula system promising, therein
Key is resistance to the electricity use of trace agent, superior physical and mechanical properties, the balance of good process processability.At present, English, moral,
The life search of ADSS is also being continued by Mei Deng state, and the most how its emphasis improves is placed in the anti-of cable sheath material in space electric field
Galvanic corrosion.
(3) crosslinked with silicane material
Organosilane crosslinked polyethylene insulation material commonly uses in 3KV and following power cable.Along with popularizing of crosslinked with silicane technology,
Other has product to come out such as crosslinked with silicane strippable shielding material, LSOH anti-flaming material, second the third CABLE MATERIALS the most in succession.Domestic at silicon
On alkane crosslinking strippable shielding material, existing producer works, and silane crosslinked halogen-free flame-retardant material, second the third CABLE MATERIALS are still few for everybody
Understand, certainly let alone apply.
(4) cross-linking radiation polyolefin material
Cross-linking radiation material and technology have obtained the application of maturation on power cable, aerial cable and equipment line.It is known that
105 DEG C and temperature below grade in industry, all can meet requirement with XLPE, XLPVC or PVC, more than 150 DEG C, silicon rubber
The application of the kinds such as glue, fluoroplastics, polyimides is the most ripe, but answering in medium temperature grade (such as 125 DEG C, 150 DEG C)
With in exploitation, bigger with external gap.
Summary of the invention
In order to solve above-mentioned technical problem, it is an object of the invention to provide 10kV and following electric wire organosilane crosslinked polyethylene
Insulant.This material is mainly used in the insulating barrier of cable, and to replace current PVC material, insulating properties are better than PVC,
And PVC electric wire aging etc. on fire when can release toxic and harmful, and silane Insulation Material is nontoxic.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
10kV and following electric wire organosilane crosslinked polyethylene insulation material, this insulant is by weight percentage by following
Component prepares:
And catalyst masterbatch；
Described catalyst masterbatch is prepared by following component:
As preferably, this insulant is prepared by following component by weight percentage:
And catalyst masterbatch；
Described catalyst masterbatch is prepared by following component:
Two step method prepares 10kV and the method for following electric wire organosilane crosslinked polyethylene insulation material, and the method includes following
Step:
1) prepared by catalyst masterbatch: stirred in blender by the material of above catalyst masterbatch, and first stirring at low speed 1 minute is the highest
Speed stirring 3 minutes, then releases and pours extruder hopper into, and extruder temperature: 140～180 DEG C, through supercool after twin-screw extrusion
But tank cools down, then carries out pelletizing after blower fan dries up, and granule, at drying tower, arranges 80 DEG C and dries more than 2 hours so
Carry out packing, temporarily depositing with vacuum aluminium plastic bag afterwards；
2) prepared by finished product:
2.1) silane coupler, crosslink agent DCP, antioxidant 300 are proportionally mixed, after mixing, become silane adjuvant,
It is sufficiently mixed rear silane adjuvant stand-by；
2.2) LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch are drawn into blender in proportion and mix,
Sucking drying tower after mix homogeneously, set 60 DEG C, drying time is more than half an hour, and material sucks raw material feed bin afterwards；
2.3) above material joins double screw extruder through weighing balance auto feed, and the silane adjuvant prepared is also passed through meter
Amount claims to join twin screw in the secondth district, and above material is grafted at twin screw；
2.4) material after twin screw is grafted is through Single screw extrusion, eccentric water smoke pelletizing, is transported to dewaterer through transportation water pump,
Through dehydration after be delivered to ebullated bed by conveying fan, by control material position height material is fully dried, after inhaled by vacuum
Material machine sucks finished product bin；
2.5) measure, pack and be finished product.
One-step method prepares 10kV and the method for following electric wire organosilane crosslinked polyethylene insulation material, and the method includes following step
Rapid:
1) prepared by catalyst masterbatch: stirred in blender by the material of above catalyst masterbatch, and first stirring at low speed 1 minute is the highest
Speed stirring 3 minutes, then releases and pours extruder hopper into, and extruder temperature: 140～180 DEG C, through supercool after twin-screw extrusion
But tank cools down, then carries out pelletizing after blower fan dries up, and granule, at drying tower, arranges 80 DEG C and dries more than 2 hours so
Carry out packing, temporarily depositing with vacuum aluminium plastic bag afterwards；
2) prepared by finished product:
2.1) silane coupler, crosslink agent DCP, antioxidant 300 are proportionally mixed, after mixing, become silane adjuvant,
It is sufficiently mixed rear silane adjuvant stand-by；
2.2) carry out being heated to 90 DEG C by main equipment double conical rotary vessel；
2.3) LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch are drawn in double conical rotary vessel, then in proportion
Lid is airtight, open double conical rotary vessel and be dried, mix；
2.4) above dry materials, mixing 2.5 hours after, by liquid spraying device, standby silane adjuvant is joined material
In；
2.5) silane adjuvant is released after the absorption of 2.5 hours；
2.6) measure, pack and be finished product.
Due to the fact that and have employed above-mentioned technical scheme, the material of the present invention is mainly used in the insulating barrier of cable, to replace at present
PVC material be main, insulating properties are better than PVC, and PVC electric wire aging etc. on fire when can release toxic and harmful,
And silane Insulation Material is nontoxic.
Use the production of the present invention, screw speed and current stabilization, produce 240mm2, 4.5 meters per minute of payingoff speed；
When extrusion, plastic emitting is uniform, and without granule, start occurs for 12 days without old glue continuously；The extension of cable heat detects 70%～80%,
Permanent deformation is in the range of 0～5%；Partial Discharge Detection is within 2PC, and industrial frequency withstand voltage tests 30 minutes without puncturing；Semi-finished product,
Finished product detection all meets GB/T 12706-2002 requirement.
The product of the present invention compares with polrvinyl chloride, and thermal denaturation resistant is better than PvC, and anti-overload ability is strong.Short circuit operation temperature is the highest
Up to 250 DEG C.And PVC poor heat resistance, its 80 DEG C continue its degeneration of 4h up to 50%.When cable overlond running easy
Causing insulation ag(e)ing and soften degeneration and cause and puncture, PVC is aging causes Cable Firing Accident to account for the 50% of electricity fire incident sum；
Crosslinked polyethylene density is less by about 40% than polrvinyl chloride, can substantially alleviate the quality of cable.Compare with thermoplastic polyethylene,
Improve resistance to heat distorsion, improve the mechanical property under high temperature, improve environmental stress resistance be full of cracks and heat aging property, increase
Strong chemical-resistant stability and solvent resistance, decrease cold flow properties, and insulation resistance is high, and dielectric loss angle tangent is little, the most not
Change with the change of temperature, substantially maintain original electric property.
Detailed description of the invention
Embodiment 1
10kV and following electric wire organosilane crosslinked polyethylene insulation material, this insulant is by weight percentage by following
Component prepares:
Two step method prepares 10kV and the method for following electric wire organosilane crosslinked polyethylene insulation material, is mainly made up of two parts,
One is the preparation of catalyst masterbatch, and two is prepared by finished product.
1, prepared by catalyst masterbatch: catalyst masterbatch accounts for the 5% of total material composition, and concrete formula is as follows:
Above material (totally 50 kilograms) is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then
Extruder hopper (extruder temperature: 140～180 DEG C) is poured in releasing into, cools down through supercooling tank after twin-screw extrusion,
Carrying out pelletizing again after blower fan dries up, granule is dried at drying tower (arranging 80 DEG C) and is then used vacuum aluminium plastic bag in more than 2 hours
Carry out packing, temporarily depositing.
2, prepared by finished product:
2.1) silane coupler, cross-linking agent, antioxidant 300 are carried out mixing (mixed according to the ratio of 1.6%:0.13%:0.04%
Silane adjuvant is become after conjunction), it is sufficiently mixed rear silane adjuvant stand-by；
2.2) by LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch according to 40%:20%:25%:8.23%:
The ratio of 5% is drawn into blender and mixes, and sucks drying tower, set 60 DEG C after mix homogeneously, and drying time is more than little half
Time, afterwards material is sucked raw material feed bin；
2.3) above material joins double screw extruder through weighing balance auto feed, and the silane adjuvant prepared is also passed through meter
Amount claims to join twin screw in the secondth district, and above material is grafted at twin screw；
2.4) material after twin screw is grafted is through Single screw extrusion, eccentric water smoke pelletizing, is transported to dewaterer through transportation water pump,
Through dehydration after be delivered to ebullated bed by conveying fan, by control material position height material is fully dried, after inhaled by vacuum
Material machine sucks finished product bin；
2.4) measure, pack and be finished product.
2.5) detecting product prepared as above, testing result is qualified.
Embodiment 2
10kV and following electric wire organosilane crosslinked polyethylene insulation material, this insulant is by weight percentage by following
Component prepares:
Above-mentioned insulant uses the two step method of embodiment 1 to prepare insulant.
Embodiment 3
10kV and following electric wire organosilane crosslinked polyethylene insulation material, this insulant is by weight percentage by following
Component prepares:
One-step method prepares 10kV and the method for following electric wire organosilane crosslinked polyethylene insulation material.Main by two parts group
Becoming, one is the preparation of catalyst masterbatch, and two is prepared by finished product.
One, prepared by catalyst masterbatch: catalyst masterbatch accounts for the 5% of total material composition, and concrete formula is as follows:
Above material (totally 50 kilograms) is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then
Extruder hopper (extruder temperature: 140～180 DEG C) is poured in releasing into, cools down through supercooling tank after twin-screw extrusion,
Carrying out pelletizing again after blower fan dries up, granule is dried at drying tower (arranging 80 DEG C) and is then used vacuum aluminium plastic bag in more than 2 hours
Carry out packing, temporarily depositing.
Two, prepared by finished product:
1, silane coupler, cross-linking agent, antioxidant 300 are carried out mixing (mixed according to the ratio of 1.6%:0.13%:0.04%
Silane adjuvant is become after conjunction), it is sufficiently mixed rear silane adjuvant stand-by；
2, carry out being heated to 90 DEG C by main equipment double conical rotary vessel；
3, by LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch according to 40%:20%:25%:8.23%:5%
Ratio be drawn in double conical rotary vessel, then that lid is airtight, open double conical rotary vessel be dried, mix；
4, above dry materials, mixing 2.5 hours after, by liquid spraying device, standby silane adjuvant is joined in material；
5, silane adjuvant is released after the absorption of 2.5 hours；
6, measure, pack and be finished product.
7, detecting product prepared as above, testing result is qualified.
Embodiment 4
10kV and following electric wire organosilane crosslinked polyethylene insulation material, this insulant is by weight percentage by following
Component prepares:
Above-mentioned insulant uses the one-step method of embodiment 3 to prepare insulant.
Claims (2)
1. two step method prepares 10kV and the method for following electric wire organosilane crosslinked polyethylene insulation material, it is characterised in that this insulation
Material is prepared by following component by weight percentage:
And catalyst masterbatch；
Described catalyst masterbatch is prepared by following component:
The method comprises the following steps:
1) prepared by catalyst masterbatch: stirred in blender by the material of above catalyst masterbatch, and first stirring at low speed 1 minute is the highest
Speed stirring 3 minutes, then releases and pours extruder hopper into, and extruder temperature: 140～180 DEG C, through supercool after twin-screw extrusion
But tank cools down, then carries out pelletizing after blower fan dries up, and granule, at drying tower, arranges 80 DEG C and dries more than 2 hours so
Carry out packing, temporarily depositing with vacuum aluminium plastic bag afterwards；
2) prepared by finished product:
2.1) silane coupler, crosslink agent DCP, antioxidant 300 are proportionally mixed, become silane after mixing and help
Agent, is sufficiently mixed rear silane adjuvant stand-by；
2.2) LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch are drawn into blender in proportion and mix
Closing, suck drying tower, set 60 DEG C after mix homogeneously, drying time is more than half an hour, and material sucks raw material feed bin afterwards；
2.3) above material joins double screw extruder through weighing balance auto feed, and the silane adjuvant prepared is also passed through meter
Amount claims to join twin screw in the secondth district, and above material is grafted at twin screw；
2.4) material after twin screw is grafted is through Single screw extrusion, eccentric water smoke pelletizing, is transported to dewaterer through transportation water pump,
Through dehydration after be delivered to ebullated bed by conveying fan, by control material position height material is fully dried, after inhaled by vacuum
Material machine sucks finished product bin；
2.5) measure, pack and be finished product.
A kind of two step method the most according to claim 1 prepares 10kV and following electric wire organosilane crosslinked polyethylene insulation material
Method, it is characterised in that catalyst masterbatch is prepared by following component:
And catalyst masterbatch；
Described catalyst masterbatch is prepared by following component:
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| CN201610548057.4A CN106009236A (en) | 2016-07-08 | 2016-07-08 | Method for preparing organosilane-crosslinked-polyethylene insulation material for electric wire of 10 kV or below with double-step method |
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| CN201610548057.4A CN106009236A (en) | 2016-07-08 | 2016-07-08 | Method for preparing organosilane-crosslinked-polyethylene insulation material for electric wire of 10 kV or below with double-step method |
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| CN114619585A (en) * | 2022-04-02 | 2022-06-14 | 南京科亚化工成套装备有限公司 | Production equipment and process method for preparing silane crosslinked polyethylene by two-step method |
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