CN106188801A - Two step method prepares the method for silver gray aerial insulated cable Insulation Material - Google Patents
Two step method prepares the method for silver gray aerial insulated cable Insulation Material Download PDFInfo
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- CN106188801A CN106188801A CN201610545276.7A CN201610545276A CN106188801A CN 106188801 A CN106188801 A CN 106188801A CN 201610545276 A CN201610545276 A CN 201610545276A CN 106188801 A CN106188801 A CN 106188801A
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- insulant
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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 more than three carbon atoms
- C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- 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
- C08J2423/06—Polyethene
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- 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
-
- 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
- C08L2205/03—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
-
- 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)
Abstract
The present invention relates to insulant field, particularly relate to silver gray aerial insulated cable insulant.Two step method prepares the method for above-mentioned silver gray aerial insulated cable insulant, is mainly made up of two parts, and one is the preparation of catalyst masterbatch, and two is prepared by finished product.This insulant is prepared by following component by weight percentage: LLDPE 7042, LLDPE 8320, LDPE, silane coupler, crosslink agent DCP, antioxidant 300, antioxidant 1010, anti-oxidant DLTP, organotin, fluorubber masterbatch, silver gray masterbatch and UV absorbent.The present invention to be used for setting up aerial wire transfer electricity consumption, and 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.
Description
Technical field
The present invention relates to insulant field, particularly relate to silver gray aerial insulated cable insulant.
Background technology
Cable industry uses polyolefinic kind mainly to have PE, PP, EVA and EEA etc., and wherein relative quantity is big, applicating history
Long is mainly PE, and it has HDPE, MDPE, LDPE, LLDPE and the XLPE through crosslinking, and their application does not the most need to speak more.OK
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, meets the thermoplastic of IEC92-359 standard-required
Moulding mixture is the most increasingly widely applied.Use along with oil platform, nuclear power station, cable for ship and other bad environments
The requirement of occasion, 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
Attention.In fact, have the trace requirement of resistance to electricity at 10kV and above aerial cable for producing corona under preventing at damp condition, by
In its insulant (XLPE, HDPE), itself there is certain resistance to electricity trace, substantially can guarantee that the requirement of aerial cable resistance to electricity trace,
So 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
90% tension force in the case of, carry out 1000 hours resistance to electricity trace test, it needs this custom-designed formula system promising, wherein
Key be resistance to electricity the 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 cable sheath material in space electric field
Electrical erosion resistance.
(3) crosslinked with silicane material
Organosilane crosslinked polyethylene insulation material commonly uses in 3KV and following power cable.Along with crosslinked with silicane technology
Universal, 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.State
On inherent crosslinked with silicane strippable shielding material, existing producer works, and silane crosslinked halogen-free flame-retardant material, second the third CABLE MATERIALS are still
Few understand for everybody, 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.Many institutes
Known, 105 DEG C and temperature below grade in industry, requirement all can be met with XLPE, XLPVC or PVC, more than 150 DEG C, silicon
The application of the kinds such as rubber, 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 silver gray aerial insulated cable insulation material
Material.This material is mainly used in setting up aerial wire transfer electricity consumption.
In order to realize above-mentioned purpose, present invention employs following technical scheme:
Silver gray aerial insulated cable insulant, this insulant is prepared by following component by weight percentage
Obtain:
As preferably, this insulant is prepared by following component by weight percentage:
Two step method prepares the method for above-mentioned silver gray aerial insulated cable insulant, and the method includes following step
Rapid:
1) prepared by catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, anti-oxidant DLTP, fluorubber
Masterbatch, silver gray masterbatch and UV absorbent；
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour into
Extruder hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then through wind
Machine carries 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) 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, catalysis masterbatch are drawn into blender in proportion and mix, mix homogeneously
Rear suction drying tower, sets 60 DEG C, and 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, by the silane adjuvant that prepared also
Joining twin screw through weighing balance in the secondth district, 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 take off through transportation water pump
Water machine, through dehydration after be delivered to ebullated bed by conveying fan, by control material position height material is fully dried, after by
Suction feeder sucks finished product bin；
2.5) measure, pack and be finished product.
One-step method prepares the method for above-mentioned silver gray aerial insulated cable Insulation Material, and the method includes following step
Rapid:
1) prepared by catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, anti-oxidant DLTP, fluorubber
Masterbatch, silver gray masterbatch and UV absorbent；
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour into
Extruder hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then through wind
Machine carries 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) 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) carry out being heated to 90 DEG C by main equipment double conical rotary vessel；
2.3) LLDPE-7042, LLDPE-8320, catalysis masterbatch are drawn in double conical rotary vessel in proportion, then that lid is close
Close, 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
In material；
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, be mainly used in setting up aerial wire transfer electricity consumption, insulating properties
Can be 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, payingoff speed per minute 4.5
Rice；When extrusion, plastic emitting is uniform, and without granule, start occurs for 12 days without old glue continuously；Cable heat extend detection 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；Half
Finished product, finished product detection all meet 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
Reach as high as 250 DEG C.And PVC poor heat resistance, its 80 DEG C continue its degeneration of 4h up to 50%.Easily cause when cable overlond running
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；Hand over
Connection density of pe is less by about 40% than polrvinyl chloride, can substantially alleviate the quality of cable.Compare with thermoplastic polyethylene, carry
High resistance to heat distorsion, improves the mechanical property under high temperature, improves environmental stress resistance be full of cracks and heat aging property, strengthen
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 with
The change of temperature and change, substantially maintain original electric property.
Detailed description of the invention
Embodiment 1
Silver gray aerial insulated cable insulant, this insulant is prepared by following component by weight percentage
Obtain:
Two step method prepares the method for silver gray aerial insulated cable insulant, is mainly made up of two parts, and one is to urge
The preparation of agent masterbatch, two is prepared by finished product.
1) prepared by catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, anti-oxidant DLTP, fluorubber
Masterbatch, silver gray masterbatch and UV absorbent；
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour into
Extruder hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then through wind
Machine carries 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) 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, catalysis masterbatch are drawn into blender in proportion and mix, mix homogeneously
Rear suction drying tower, sets 60 DEG C, and 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, by the silane adjuvant that prepared also
Joining twin screw through weighing balance in the secondth district, 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 take off through transportation water pump
Water machine, through dehydration after be delivered to ebullated bed by conveying fan, by control material position height material is fully dried, after by
Suction feeder sucks finished product bin；
2.6) measure, pack and be finished product.
3) detecting product prepared as above, testing result is qualified.
Embodiment 2
Silver gray aerial insulated cable insulant, this insulant is prepared by following component by weight percentage
Obtain:
Above-mentioned insulant uses the two step method of embodiment 1 to prepare insulant.
Embodiment 3
Silver gray aerial insulated cable insulant, this insulant is prepared by following component by weight percentage
Obtain:
One-step method prepares the method for silver gray aerial insulated cable insulant.Mainly being made up of two parts, one is to urge
The preparation of agent masterbatch, two is prepared by finished product.
1) prepared by catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, anti-oxidant DLTP, fluorubber
Masterbatch, silver gray masterbatch and UV absorbent；
Above material is stirred in blender, first stirring at low speed 1 minute high-speed stirred 3 minutes again, then release and pour into
Extruder hopper, extruder temperature: 140～180 DEG C, cool down through supercooling tank after twin-screw extrusion, then through wind
Machine carries 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) 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) carry out being heated to 90 DEG C by main equipment double conical rotary vessel；
2.3) LLDPE-7042, LLDPE-8320, catalysis masterbatch are drawn in double conical rotary vessel in proportion, then that lid is close
Close, 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
In material；
2.5) silane adjuvant is released after the absorption of 2.5 hours；
2.6) measure, pack and be finished product.
3) detecting product prepared as above, testing result is qualified.
Embodiment 4
Silver gray aerial insulated cable insulant, this insulant is prepared by following component by weight percentage
Obtain:
Above-mentioned insulant uses the one-step method of embodiment 3 to prepare insulant.
Claims (2)
1. the method that two step method prepares silver gray aerial insulated cable insulant, it is characterised in that this insulant is by weight
Percentages is prepared by following component:
The method comprises the following steps:
1) prepared by catalyst masterbatch: catalyst masterbatch is LDPE, organotin, antioxidant 1010, anti-oxidant DLTP, fluorubber female
Material, silver gray masterbatch and UV absorbent；
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 blow through blower fan
Carry out pelletizing after Gan, 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) 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, catalysis masterbatch are drawn into blender in proportion and mix, and inhale after mix homogeneously
Entering drying tower, 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, is also passed through by the silane adjuvant prepared
Weighing balance joins 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 by vacuum
Material sucking machine sucks finished product bin；
2.5) measure, pack and be finished product.
Two step method the most according to claim 1 prepares the method for silver gray aerial insulated cable insulant, its feature
It is that this insulant is prepared by following component by weight percentage:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545276.7A CN106188801A (en) | 2016-07-08 | 2016-07-08 | Two step method prepares the method for silver gray aerial insulated cable Insulation Material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610545276.7A CN106188801A (en) | 2016-07-08 | 2016-07-08 | Two step method prepares the method for silver gray aerial insulated cable Insulation Material |
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| CN106188801A true CN106188801A (en) | 2016-12-07 |
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| CN201610545276.7A Pending CN106188801A (en) | 2016-07-08 | 2016-07-08 | Two step method prepares the method for silver gray aerial insulated cable Insulation Material |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464005A (en) * | 2002-06-11 | 2003-12-31 | 上海高分子功能材料研究所 | Silicon alkyl cross bonding polyethylene fire-retardancy insulating plastics |
| CN101531783A (en) * | 2008-12-23 | 2009-09-16 | 上海高分子功能材料研究所 | Delayed cross-linked type silicane cross-linked polyethylene plastic |
| CN101824199A (en) * | 2010-04-26 | 2010-09-08 | 大连圣迈新材料有限公司 | One-step silane cross-linked polyethylene cable material |
| CN104610633A (en) * | 2015-01-15 | 2015-05-13 | 安徽科正新材料有限公司 | Two-step silane crosslinked polyethylene aerial insulation material and preparation technology thereof |
-
2016
- 2016-07-08 CN CN201610545276.7A patent/CN106188801A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1464005A (en) * | 2002-06-11 | 2003-12-31 | 上海高分子功能材料研究所 | Silicon alkyl cross bonding polyethylene fire-retardancy insulating plastics |
| CN101531783A (en) * | 2008-12-23 | 2009-09-16 | 上海高分子功能材料研究所 | Delayed cross-linked type silicane cross-linked polyethylene plastic |
| CN101824199A (en) * | 2010-04-26 | 2010-09-08 | 大连圣迈新材料有限公司 | One-step silane cross-linked polyethylene cable material |
| CN104610633A (en) * | 2015-01-15 | 2015-05-13 | 安徽科正新材料有限公司 | Two-step silane crosslinked polyethylene aerial insulation material and preparation technology thereof |
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Application publication date: 20161207 |
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