CN106009238A - Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below silver gray wires and cables through one step - Google Patents
Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below silver gray wires and cables through one step Download PDFInfo
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- CN106009238A CN106009238A CN201610549884.5A CN201610549884A CN106009238A CN 106009238 A CN106009238 A CN 106009238A CN 201610549884 A CN201610549884 A CN 201610549884A CN 106009238 A CN106009238 A CN 106009238A
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- silane
- insulating material
- silver gray
- prepared
- cables
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910000077 silane Inorganic materials 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 22
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 239000004332 silver Substances 0.000 title claims abstract description 17
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 17
- 238000004132 cross linking Methods 0.000 title abstract description 7
- 239000004698 Polyethylene Substances 0.000 title abstract description 6
- -1 polyethylene Polymers 0.000 title abstract description 4
- 229920000573 polyethylene Polymers 0.000 title abstract description 4
- 239000011810 insulating material Substances 0.000 title abstract 7
- 239000000463 material Substances 0.000 claims abstract description 52
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 18
- 239000003054 catalyst Substances 0.000 claims abstract description 13
- 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 18
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 18
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 18
- 239000012774 insulation material Substances 0.000 claims description 17
- 239000000203 mixture Substances 0.000 claims description 16
- 150000001282 organosilanes Chemical class 0.000 claims description 14
- 238000001125 extrusion Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 8
- 238000005453 pelletization 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
- 239000004411 aluminium Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 238000006555 catalytic reaction Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000004781 supercooling Methods 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 239000003431 cross linking reagent Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 3
- 230000002588 toxic effect Effects 0.000 abstract description 3
- 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
- 229920001973 fluoroelastomer Polymers 0.000 abstract 1
- 239000007789 gas Substances 0.000 abstract 1
- 229940124543 ultraviolet light absorber Drugs 0.000 abstract 1
- 239000006097 ultraviolet radiation absorber Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 17
- 230000005611 electricity Effects 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000000779 smoke Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 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
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000000151 deposition Methods 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
- 238000009413 insulation Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000005303 weighing 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
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- 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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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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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
- C08L2312/00—Crosslinking
- C08L2312/08—Crosslinking by silane
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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Organic Insulating Materials (AREA)
Abstract
The invention relates to the field of insulating materials, in particular to a silane crosslinking polyethylene insulating material for 10 kV or below silver gray wires and cables. A method for preparing the insulating material for the 10 kV or below silver gray wires and cables through one step mainly comprises the two steps of catalyst master batch preparation and finished product preparation. The insulating material is prepared from, by weight, LLDPE-7042, LLDPE-8320, LDPE, EVA, PP, a silane coupling agent, a cross-linking agent DCP, an antioxidant 300, an antioxidant 1010, an antioxidant DLTP, an antioxidant 1024, organotin, fluororubber master batches, an ultraviolet light absorber and silver gray master batches. The insulating material is mainly used for insulating layers of the cables and mainly replaces a current PVC material, the insulating property is superior to that of PVC, PVC can emit toxic and harmful gases when the wires fire due to aging and the like, but the silane insulating material is poisonless and harmless.
Description
Technical field
The present invention relates to insulant field, particularly relate to 10kV and following silver gray 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 silver gray electric wire crosslinked with silicane
Polyethylene insulation material.This material is mainly used in the insulating barrier of cable, and to replace current PVC material, insulating properties are excellent
In 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 silver gray electric wire organosilane crosslinked polyethylene insulation material, this insulant by weight percentage by
Following component prepares:
As preferably, this insulant is prepared by following component by weight percentage:
Two step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material, and the method includes
Below step:
1) prepared by catalyst masterbatch: by weight percentage, and catalyst masterbatch accounts for the 3～10% of total material composition, wherein:
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour extrusion into
Machine hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then dry up through blower fan
After carry out pelletizing, granule, at drying tower, arranges 80 DEG C of drying and then carries out packing, temporarily depositing with vacuum aluminium plastic bag for more than 2 hours
Put；
2) prepared by finished product:
2.1) by silane coupler, crosslink agent DCP, antioxidant 300 according to silane coupler: 1～2%:0.13%:0.02～0.06%
Ratio mix, become silane adjuvant after mixing, be sufficiently mixed rear silane adjuvant stand-by；
2.2) LLDPE-7042, LLDPE-8320, LDPE, EVA, catalysis masterbatch are pressed: 35～44%:15～24%:20～30%:
5～12%:3～10% ratio be drawn into blender and mix, suck drying tower after mix homogeneously, set 60 DEG C, drying time
More than half an hour, 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；
2.5) 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: by weight percentage, and catalyst masterbatch accounts for the 3～10% of total material composition, wherein:
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour extrusion into
Machine hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then dry up through blower fan
After carry out pelletizing, granule, at drying tower, arranges 80 DEG C of drying and then carries out packing, temporarily depositing with vacuum aluminium plastic bag for more than 2 hours
Put；
2) prepared by finished product:
2.1) by silane coupler, crosslink agent DCP, antioxidant 300 according to silane coupler: 1～2%:0.13%:0.02～0.06%
Ratio mix, become silane adjuvant after mixing, be 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 pressed: 35～44%:15～24%:20～30%:
5～12%:3～10% ratio be drawn in double conical rotary vessel, then that lid is airtight, open double conical rotary vessel 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 silver gray electric wire organosilane crosslinked polyethylene insulation material, this insulant by weight percentage by
Following component prepares:
Two step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material, mainly by two
Being grouped into, 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 is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour extrusion into
Machine hopper (extruder temperature: 140～180 DEG C), cools down through supercooling tank after twin-screw extrusion, then blows through blower fan
Carrying out pelletizing after Gan, granule is dried at drying tower (arranging 80 DEG C) and then is carried out packing, temporarily with vacuum aluminium plastic bag for more than 2 hours
Shi Cunfang.
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.
3, detecting product prepared as above, testing result is qualified.
Embodiment 2
10kV and following silver gray electric wire organosilane crosslinked polyethylene insulation material, this insulant 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 silver gray electric wire organosilane crosslinked polyethylene insulation material, this insulant by weight percentage by
Following component prepares:
One-step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material.Main by two
Part composition, 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 is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour extrusion into
Machine hopper (extruder temperature: 140～180 DEG C), cools down through supercooling tank after twin-screw extrusion, then blows through blower fan
Carrying out pelletizing after Gan, granule is dried at drying tower (arranging 80 DEG C) and then is carried out packing, temporarily with vacuum aluminium plastic bag for more than 2 hours
Shi Cunfang.
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.
Three, detecting product prepared as above, testing result is qualified.
Embodiment 4
10kV and following silver gray electric wire organosilane crosslinked polyethylene insulation material, this insulant by weight percentage by
Following component prepares:
Above-mentioned insulant uses the one-step method of embodiment 3 to prepare insulant.
Claims (2)
1. one-step method prepares 10kV and the method for following silver gray electric wire organosilane crosslinked polyethylene insulation material, it is characterised in that
This insulant is prepared by following component by weight percentage:
The method comprises the following steps:
1) prepared by catalyst masterbatch: by weight percentage, and catalyst masterbatch accounts for the 3～10% of total material composition, wherein:
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour extrusion into
Machine hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then through blower fan
Carry out pelletizing after drying up, granule at drying tower, arrange 80 DEG C dry more than 2 hours then with vacuum aluminium plastic bag carry out packing,
Temporarily deposit；
2) prepared by finished product:
2.1) by silane coupler, crosslink agent DCP, antioxidant 300 according to silane coupler: 1～2%:0.13%:0.02～0.06%
Ratio mix, become silane adjuvant after mixing, be 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 pressed: 35～44%:15～24%:20～30%:
5～12%:3～10% ratio be drawn in double conical rotary vessel, then that lid is airtight, open double conical rotary vessel 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.
One-step method the most according to claim 1 prepares 10kV and following silver gray electric wire organosilane crosslinked polyethylene insulation material
The method of material, it is characterised in that this insulant is prepared by following component by weight percentage:
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| CN201610549884.5A CN106009238A (en) | 2016-07-08 | 2016-07-08 | Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below silver gray wires and cables through one step |
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| CN201610549884.5A CN106009238A (en) | 2016-07-08 | 2016-07-08 | Method for preparing silane crosslinking polyethylene insulating material for 10 kV or below silver gray wires and cables through one step |
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| JP2000034383A (en) * | 1998-07-17 | 2000-02-02 | Sumitomo Bakelite Co Ltd | Silane-cross-linkable polyolefin resin composition and insulation cable |
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