CN105348631A - Easy-to-peel semiconductive insulation shielding material for power cable and preparation method of easy-to-peel semiconductive insulation shielding material - Google Patents
Easy-to-peel semiconductive insulation shielding material for power cable and preparation method of easy-to-peel semiconductive insulation shielding material Download PDFInfo
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- CN105348631A CN105348631A CN201510896336.5A CN201510896336A CN105348631A CN 105348631 A CN105348631 A CN 105348631A CN 201510896336 A CN201510896336 A CN 201510896336A CN 105348631 A CN105348631 A CN 105348631A
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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
- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0853—Vinylacetate
-
- 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
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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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—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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- Chemical & Material Sciences (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Polymers & Plastics (AREA)
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- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Conductive Materials (AREA)
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Abstract
The invention discloses an easy-to-peel semiconductive insulation shielding material for a power cable and a preparation method of the easy-to-peel semiconductive insulation shielding material. The material is prepared from 40-100 parts of ethylene vinyl acetate copolymer, 10-30 parts of chlorinated polyethylene, 40-80 parts of conductive carbon black, 0.1-1.5 parts of antioxidant, 0.5-10 parts of lubricant, 1-10 parts of dispersant, 0.05-3.0 parts of caking inhibiter and 0.5-2.5 parts of cross-linking agent. Due to the adoption of ethylene vinyl acetate resin with high vinyl acetate content, chlorinated polyethylene, caking inhibiter and large-grain-size conductive black, the material has low peeling strength, the problem that an outer screen and an insulating layer in cable construction in a cold region are not easy to peel is solved through the material prepared through the method, and the peeling strength of the prepared semiconductive insulation shielding material ranges from 8 N/cm to 18 N/cm.
Description
Technical field
The present invention relates to a kind of power cable semi-conductive shielding material and preparation method thereof, being specifically related to a kind of power cable with easily peeling off semi-conductive insulation shield material and preparation method thereof.
Background technology
In prior art, the stripping strength of power cable semi-conductive insulation shield material is generally 20-40N/cm, such stripping strength still can meet common regional cable construction requirement, but still can not meet the cable construction of cold district, therefore develop a kind of can still keep original performance at low temperatures and the power cable simultaneously with lower stripping strength with easily peeling off semi-conductive insulation shield material, become current problem demanding prompt solution.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of power cable with easily peeling off semi-conductive insulation shield material and preparation method thereof, the material being prepared gained by this preparation method has good easy stripping performance.
The present invention in order to the technical scheme solving its technical problem and adopt is:
A kind of power cable, with easily peeling off semi-conductive insulation shield material, is made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 40-100 part, chlorinatedpolyethylene 10-30 part, graphitized carbon black 40-80 part, oxidation inhibitor 0.1-1.5 part, lubricant 0.5-10 part, dispersion agent 1-10 part, caking inhibiter 0.05-3.0 part and linking agent 0.5-2.5 part.
Its further technical scheme is:
Preferably, this power cable is made up of the following each component according to parts by weight with easily peeling off semi-conductive insulation shield material: ethylene vinyl acetate copolymer 60-90 part, chlorinatedpolyethylene 10-25 part, graphitized carbon black 50-70 part, oxidation inhibitor 0.5-1.2 part, lubricant 2.0-8.0 part, dispersion agent 3-9 part, caking inhibiter 0.1-2.0 part and linking agent 0.8-2.0 part.
The melting index of described ethylene vinyl acetate copolymer is 18-30g/10min under 190 DEG C × 2.16kg, and softening temperature is for being less than 40 DEG C, and vinyl acetate content is 26%-55%; The oil-absorption(number) of wherein said graphitized carbon black is greater than 150cc/100g, and 325 screen residues are less than 35ppm, and particle diameter is less than 100nm, preferably
the cl content of wherein said chlorinatedpolyethylene is greater than 20wt%, and volatile matter content is less than 0.3%, and yield strength is greater than 15MPa, and elongation at break is greater than 600%.
Described oxidation inhibitor is at least one in antioxidant 300, antioxidant 1010, oxidation inhibitor 1024, irgasfos 168, phenolic antioxidant, amine antioxidants, thiobisphenol kind antioxidant and phosphite ester kind antioxidant.
Described lubricant is polyethylene wax and silicone master batch.
Described dispersion agent is at least one in fluoropolymer modifier and stearate.
Described caking inhibiter is at least one in alkoxide and amides.
Described linking agent is dicumyl peroxide.
The invention also discloses the above-mentioned power cable preparation method easily peeling off semi-conductive insulation shield material, the method comprises the steps:
(1) according to formula consumption, by ethylene vinyl acetate copolymer, chlorinatedpolyethylene, graphitized carbon black, oxidation inhibitor, lubricant, dispersion agent and caking inhibiter respectively by self-measuring device metering after automatic blanking enter carry out in reciprocating single-bolt extruder mixing, and extruding pelletization, obtained power cable is with easily peeling off the Preblend of semi-conductive insulation shield material;
(2) power cable of gained in (1) is mixed with the linking agent of adapted consumption with easily peeling off the Preblend of semi-conductive insulation shield material in high speed mixer, mixing temperature is 55-60 DEG C, mixing time is 5-15min, and obtained power cable is with easily peeling off semi-conductive insulation shield material.
Advantageous Effects of the present invention is: the ethylene vinyl acetate resin using high vinyl acetate content in this material, reduces the consistency of itself and power cable chemically crosslinked type insulating material, reduces peeling force; Add chlorinatedpolyethylene in this material, improve the polarity of base-material, reduce the consistency with nonpolar chemically crosslinked type insulating material, reduce stripping strength; And add special caking inhibiter, when cable cabling, semi-conductive shielding material surface forms one deck Special Film, reduces the frictional coefficient with insulating material, significantly reduces peeling force; Use Large stone type graphitized carbon black in addition, maintain the processing stability of raw material while reducing product percolation threshold, reduce the stripping strength with insulating material, this material has the stripping strength of 8-18N/cm simultaneously.
Embodiment
Below in conjunction with specific embodiment and comparative example, the present invention is described in detail.Should be understood that these embodiments are for illustration of ultimate principle of the present invention, principal character and advantage, and the present invention is not limited by the following examples.The implementation condition adopted in embodiment can do further adjustment according to specific requirement, and not marked implementation condition is generally the condition in normal experiment.In addition, when not having specified otherwise, " part " below refers to mass parts.
The melting index of wherein adopted ethylene vinyl acetate copolymer is 18-30g/10min under 190 DEG C × 2.16kg, and softening temperature is for being less than 40 DEG C, and vinyl acetate content is 26%-55%.The oil-absorption(number) of the graphitized carbon black adopted is greater than 150cc/100g, and 325 screen residues are less than 35ppm, and particle diameter is less than 100nm, adopts in following specific embodiment and comparative example
the cl content of the chlorinatedpolyethylene adopted is greater than 20wt%, and volatile matter content is less than 0.3%, and yield strength is greater than 15MPa, and elongation at break is greater than 600%.Described oxidation inhibitor is at least one in antioxidant 300, antioxidant 1010, oxidation inhibitor 1024, irgasfos 168, phenolic antioxidant, amine antioxidants, thiobisphenol kind antioxidant and phosphite ester kind antioxidant.The lubricant adopted is the mixture of polyethylene wax and silicone master batch.The dispersion agent adopted is at least one in fluoropolymer modifier and stearate.Adopted caking inhibiter be at least one in alkoxide and amides.The linking agent adopted is dicumyl peroxide.
specific embodiment 1
A kind of power cable, with easily peeling off semi-conductive insulation shield materials A, is made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 90 parts, chlorinatedpolyethylene 10 parts, graphitized carbon black 55 parts, 0.8 part, oxidation inhibitor, lubricant 5 parts, dispersion agent 8 parts, caking inhibiter 0.5 part and linking agent 1.5 parts.
The preparation method easily peeling off semi-conductive insulation shield materials A comprises the steps: this power cable
(1) according to above-mentioned formula consumption, by ethylene vinyl acetate copolymer, chlorinatedpolyethylene, graphitized carbon black, oxidation inhibitor, lubricant, dispersion agent and caking inhibiter respectively by self-measuring device metering after automatic blanking enter carry out in reciprocating single-bolt extruder mixing, and extruding pelletization, obtained power cable is with easily peeling off the Preblend of semi-conductive insulation shield material;
(2) power cable of gained in (1) is mixed with the linking agent of adapted consumption with easily peeling off the Preblend of semi-conductive insulation shield material in high speed mixer, mixing temperature is 60 DEG C, mixing time is 5-15min, and obtained power cable is with easily peeling off semi-conductive insulation shield materials A.
specific embodiment 2
A kind of power cable, with easily peeling off semi-conductive insulation shield material B, is made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 85 parts, chlorinatedpolyethylene 15 parts, graphitized carbon black 60 parts, 0.8 part, oxidation inhibitor, lubricant 5.5 parts, dispersion agent 8 parts, caking inhibiter 0.6 part and linking agent 1.5 parts.
This power cable preparation method's step as described in specific embodiment 1 easily peeling off semi-conductive insulation shield material B.
specific embodiment 3
A kind of power cable, with easily peeling off semi-conductive insulation shield material C, is made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 80 parts, chlorinatedpolyethylene 20 parts, graphitized carbon black 65 parts, 0.8 part, oxidation inhibitor, lubricant 6.0 parts, dispersion agent 8.5 parts, caking inhibiter 0.7 part and linking agent 1.5 parts.
This power cable preparation method's step as described in specific embodiment 1 easily peeling off semi-conductive insulation shield material C.
specific embodiment 4
A kind of power cable, with easily peeling off semi-conductive insulation shield material D, is made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 75 parts, chlorinatedpolyethylene 25 parts, graphitized carbon black 70 parts, 0.8 part, oxidation inhibitor, lubricant 6.5 parts, dispersion agent 9.0 parts, caking inhibiter 0.8 part and linking agent 1.5 parts.
This power cable preparation method's step as described in specific embodiment 1 easily peeling off semi-conductive insulation shield material D.
comparative example 1
A kind of power cable is with easily peeling off semi-conductive insulation shield materials A ', be made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 75 parts, chlorinatedpolyethylene 25 parts, graphitized carbon black 70 parts, 0.8 part, oxidation inhibitor, lubricant 6.5 parts, dispersion agent 9.0 parts and linking agent 1.5 parts.
This power cable is with easily peeling off semi-conductive insulation shield materials A ' preparation method comprise the steps:
(1) according to above-mentioned formula consumption, by ethylene vinyl acetate copolymer, chlorinatedpolyethylene, graphitized carbon black, oxidation inhibitor, lubricant and dispersion agent respectively by self-measuring device metering after automatic blanking enter carry out in reciprocating single-bolt extruder mixing, and extruding pelletization, obtained power cable is with easily peeling off the Preblend of semi-conductive insulation shield material;
(2) power cable of gained in (1) is mixed with the linking agent of adapted consumption with easily peeling off the Preblend of semi-conductive insulation shield material in high speed mixer, mixing temperature is 60 DEG C, mixing time is 5-15min, and obtained power cable is with easily peeling off semi-conductive insulation shield materials A '.
comparative example 2
A kind of power cable is with easily peeling off semi-conductive insulation shield material B ', be made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 100 parts, graphitized carbon black 70 parts, 0.8 part, oxidation inhibitor, lubricant 6.5 parts, dispersion agent 9.0 parts, caking inhibiter 0.8 part and linking agent 1.5 parts.
This power cable is with easily peeling off semi-conductive insulation shield material B ' preparation method comprise the steps:
(1) according to above-mentioned formula consumption, by ethylene vinyl acetate copolymer, graphitized carbon black, oxidation inhibitor, lubricant, dispersion agent and caking inhibiter respectively by self-measuring device metering after automatic blanking enter carry out in reciprocating single-bolt extruder mixing, and extruding pelletization, obtained power cable is with easily peeling off the Preblend of semi-conductive insulation shield material;
(2) power cable of gained in (1) is mixed with the linking agent of adapted consumption with easily peeling off the Preblend of semi-conductive insulation shield material in high speed mixer, mixing temperature is 60 DEG C, mixing time is 5-15min, and obtained power cable is with easily peeling off semi-conductive insulation shield material B '.
Test the mechanical property of the CABLE MATERIALS of above-mentioned specific embodiment 1-4 and comparative example 1-2 gained and electric property, result is see table 1.
Table 1
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (10)
1. power cable is with easily peeling off a semi-conductive insulation shield material, it is characterized in that: be made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 40-100 part, chlorinatedpolyethylene 10-30 part, graphitized carbon black 40-80 part, oxidation inhibitor 0.1-1.5 part, lubricant 0.5-10 part, dispersion agent 1-10 part, caking inhibiter 0.05-3.0 part and linking agent 0.5-2.5 part.
2. power cable according to claim 1 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: be made up of the following each component according to parts by weight: ethylene vinyl acetate copolymer 60-90 part, chlorinatedpolyethylene 10-25 part, graphitized carbon black 50-70 part, oxidation inhibitor 0.5-1.2 part, lubricant 2.0-8.0 part, dispersion agent 3-9 part, caking inhibiter 0.1-2.0 part and linking agent 0.8-2.0 part.
3. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: the melting index of described ethylene vinyl acetate copolymer is 18-30g/10min under 190 DEG C × 2.16kg, softening temperature is for being less than 40 DEG C, and vinyl acetate content is 26%-55%; The oil-absorption(number) of wherein said graphitized carbon black is greater than 150cc/100g, and 325 screen residues are less than 35ppm, and particle diameter is less than 100nm; The cl content of wherein said chlorinatedpolyethylene is greater than 20wt%, and volatile matter content is less than 0.3%, and yield strength is greater than 15MPa, and elongation at break is greater than 600%.
4. power cable according to claim 3 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described graphitized carbon black is
5. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described oxidation inhibitor is at least one in antioxidant 300, antioxidant 1010, oxidation inhibitor 1024, irgasfos 168, phenolic antioxidant, amine antioxidants, thiobisphenol kind antioxidant and phosphite ester kind antioxidant.
6. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described lubricant is polyethylene wax and silicone master batch.
7. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described dispersion agent is at least one in fluoropolymer modifier and stearate.
8. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described caking inhibiter is at least one in alkoxide and amides.
9. power cable according to claim 2 is with easily peeling off semi-conductive insulation shield material, it is characterized in that: described linking agent is dicumyl peroxide.
10. the preparation method easily peeling off semi-conductive insulation shield material of the power cable according to claim arbitrary in claim 1 to 9, is characterized in that: comprise the steps:
(1) according to formula consumption, by ethylene vinyl acetate copolymer, chlorinatedpolyethylene, graphitized carbon black, oxidation inhibitor, lubricant, dispersion agent and caking inhibiter respectively by self-measuring device metering after automatic blanking enter carry out in reciprocating single-bolt extruder mixing, and extruding pelletization, obtained power cable is with easily peeling off the Preblend of semi-conductive insulation shield material;
(2) power cable of gained in (1) is mixed with the linking agent of adapted consumption with easily peeling off the Preblend of semi-conductive insulation shield material in high speed mixer, mixing temperature is 55-60 DEG C, mixing time is 5-15min, and obtained power cable is with easily peeling off semi-conductive insulation shield material.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251398A (en) * | 2018-07-06 | 2019-01-22 | 浙江万马高分子材料有限公司 | Semi-conductive shielding material for insulation and preparation method thereof |
| CN109294050A (en) * | 2018-09-30 | 2019-02-01 | 远东电缆有限公司 | Silane-crosslinkable semiconductive inner shield material and preparation method thereof |
| CN109320893A (en) * | 2018-09-30 | 2019-02-12 | 远东电缆有限公司 | Silane-crosslinkable semiconductive external shield material and preparation method thereof |
| CN109370027A (en) * | 2018-09-18 | 2019-02-22 | 特变电工(德阳)电缆股份有限公司 | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
| CN109627563A (en) * | 2018-12-25 | 2019-04-16 | 江苏东方电缆材料有限公司 | A kind of easily peelable EVA/POP semiconductive external shield material |
| CN110607023A (en) * | 2019-10-30 | 2019-12-24 | 浙江远东电缆集团有限公司 | Insulating shielding layer rubber material for cable and manufacturing method thereof |
| CN114316421A (en) * | 2021-12-28 | 2022-04-12 | 高邮市金国电缆材料厂有限公司 | Strippable semiconductive shielding material for crosslinked polyethylene insulated cable and preparation method thereof |
| CN114539663A (en) * | 2022-04-18 | 2022-05-27 | 尚纬股份有限公司 | Ethylene cable, strippable semiconductive insulation shielding material and preparation method |
| CN115627025A (en) * | 2022-11-10 | 2023-01-20 | 南京中超新材料股份有限公司 | Strippable semi-conductive shielding material and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109251398A (en) * | 2018-07-06 | 2019-01-22 | 浙江万马高分子材料有限公司 | Semi-conductive shielding material for insulation and preparation method thereof |
| CN109251398B (en) * | 2018-07-06 | 2021-04-30 | 浙江万马高分子材料有限公司 | Semi-conductive shielding material for insulation and preparation method thereof |
| CN109370027A (en) * | 2018-09-18 | 2019-02-22 | 特变电工(德阳)电缆股份有限公司 | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
| CN109370027B (en) * | 2018-09-18 | 2021-01-05 | 特变电工(德阳)电缆股份有限公司 | Graphene composite semiconductive shielding material, preparation method and application thereof |
| CN109294050A (en) * | 2018-09-30 | 2019-02-01 | 远东电缆有限公司 | Silane-crosslinkable semiconductive inner shield material and preparation method thereof |
| CN109320893A (en) * | 2018-09-30 | 2019-02-12 | 远东电缆有限公司 | Silane-crosslinkable semiconductive external shield material and preparation method thereof |
| CN109627563A (en) * | 2018-12-25 | 2019-04-16 | 江苏东方电缆材料有限公司 | A kind of easily peelable EVA/POP semiconductive external shield material |
| CN110607023A (en) * | 2019-10-30 | 2019-12-24 | 浙江远东电缆集团有限公司 | Insulating shielding layer rubber material for cable and manufacturing method thereof |
| CN114316421A (en) * | 2021-12-28 | 2022-04-12 | 高邮市金国电缆材料厂有限公司 | Strippable semiconductive shielding material for crosslinked polyethylene insulated cable and preparation method thereof |
| CN114539663A (en) * | 2022-04-18 | 2022-05-27 | 尚纬股份有限公司 | Ethylene cable, strippable semiconductive insulation shielding material and preparation method |
| CN115627025A (en) * | 2022-11-10 | 2023-01-20 | 南京中超新材料股份有限公司 | Strippable semi-conductive shielding material and preparation method thereof |
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Application publication date: 20160224 |