CN114181469A - Strippable external shielding material and production method thereof - Google Patents
Strippable external shielding material and production method thereof Download PDFInfo
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- CN114181469A CN114181469A CN202111568091.5A CN202111568091A CN114181469A CN 114181469 A CN114181469 A CN 114181469A CN 202111568091 A CN202111568091 A CN 202111568091A CN 114181469 A CN114181469 A CN 114181469A
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- 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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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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
- C08L23/26—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment
- C08L2023/40—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers modified by chemical after-treatment by reaction with compounds changing molecular weight
- C08L2023/44—Coupling; Molecular weight increase
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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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
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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
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Abstract
The invention belongs to the technical field of cable shielding materials, and particularly relates to a strippable external shielding material and a production method thereof, wherein the strippable external shielding material comprises the following raw materials in parts by weight: 60-90 parts of crosslinked polyethylene, 50-60 parts of styrene-butadiene rubber, 30-50 parts of conductive carbon black, 220 parts of organic solvent 160-5 parts of stripping agent, 15-20 parts of flame retardant, 2-6 parts of lubricant, 3-5 parts of antioxidant, 1-3 parts of silane coupling agent and 10-20 parts of plasticizer. According to the invention, the stripping agent is used for easily stripping the outer shielding material, so that the cable is conveniently recycled, the waste of resources is avoided, the conductive carbon black, the crosslinked polyethylene and the styrene butadiene rubber can be fused more uniformly through the organic solvent, the conductive carbon black contained in the outer shielding material is more uniform, and the conductive performance of the outer shielding material can be obviously improved; the outer shielding material is more heat-resistant, wear-resistant and ageing-resistant through cross-linking polyethylene and styrene butadiene rubber, and has excellent flame retardant property and oxidation resistance through the flame retardant and the antioxidant.
Description
Technical Field
The invention relates to the technical field of cable shielding materials, in particular to a strippable external shielding material and a production method thereof.
Background
Cables are generally rope-like cables made by stranding several or groups of conductors (at least two in each group), each group being insulated from each other and often twisted around a center, the entire outer surface being coated with a highly insulating coating. The outer shield of the cable mainly relieves the internal stress of the cable and improves the radial distribution of an electric field in the cable so as to improve the electrical strength of the cable.
At present, the outer shielding material in the existing market is difficult to peel off, and is inconvenient with conductive carbon black and resin misce bene to lead to the electric conductive property of current outer shielding material not good enough, its fire behaviour of outer shielding material in the existing market simultaneously and anti-oxidant ability are not good, when the conflagration breaing out, the phenomenon of burning easily appears, receives external environment's influence and appears ageing phenomenon easily, reduces life.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a strippable external shielding material and a production method thereof, and solves the problems in the background art.
(II) technical scheme
The invention specifically adopts the following technical scheme for realizing the purpose:
the strippable external shielding material comprises the following raw materials in parts by weight: 60-90 parts of crosslinked polyethylene, 50-60 parts of styrene-butadiene rubber, 30-50 parts of conductive carbon black, 220 parts of organic solvent 160-5 parts of stripping agent, 15-20 parts of flame retardant, 2-6 parts of lubricant, 3-5 parts of antioxidant, 1-3 parts of silane coupling agent and 10-20 parts of plasticizer.
Further, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether and triethanolamine.
Further, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
Further, the flame retardant is any one or combination of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
Further, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
Further, the antioxidant is any one or combination of more of tocopherol, flavonoid, butyl hydroxy anisole, dibutyl hydroxy toluene and tert-butyl hydroquinone.
Further, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
Further, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzene polycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 60-140 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
(III) advantageous effects
Compared with the prior art, the invention provides a strippable external shielding material and a production method thereof, and the strippable external shielding material has the following beneficial effects:
1. according to the invention, the stripping agent is used for easily stripping the outer shielding material, so that the cable is conveniently recycled, the waste of resources is avoided, the conductive carbon black, the crosslinked polyethylene and the styrene butadiene rubber can be fused more uniformly through the organic solvent, the conductive carbon black contained in the outer shielding material is more uniform, and the conductive performance of the outer shielding material can be obviously improved.
2. According to the invention, the outer shielding material is more heat-resistant, wear-resistant and aging-resistant through the crosslinked polyethylene and the styrene butadiene rubber, and has excellent flame retardant property and oxidation resistance through the flame retardant and the antioxidant, so that the outer shielding material is not easy to burn in case of fire, is safer and more environment-friendly, is not easily influenced by external environment, has a wider application range and has a longer service life.
Drawings
FIG. 1 is a schematic view of the production process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, a strippable external shield material according to an embodiment of the present invention comprises the following raw materials by weight: 60 parts of crosslinked polyethylene, 50 parts of styrene-butadiene rubber, 30 parts of conductive carbon black, 160 parts of organic solvent, 2 parts of stripping agent, 15 parts of flame retardant, 2 parts of lubricant, 3 parts of antioxidant, 1 part of silane coupling agent and 10 parts of plasticizer.
In this embodiment, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether, and triethanolamine.
In the embodiment, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
In this embodiment, the flame retardant is any one or more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
In this embodiment, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
In this embodiment, the antioxidant is any one or more of tocopherol, flavonoid, butylated hydroxyanisole, butylated hydroxytoluene and tertiary butyl hydroquinone.
In this embodiment, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
In the present embodiment, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzenepolycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 100 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
Example 2
As shown in fig. 1, a strippable external shield material according to an embodiment of the present invention comprises the following raw materials by weight: 90 parts of crosslinked polyethylene, 60 parts of styrene-butadiene rubber, 50 parts of conductive carbon black, 220 parts of organic solvent, 5 parts of stripping agent, 20 parts of flame retardant, 6 parts of lubricant, 5 parts of antioxidant, 3 parts of silane coupling agent and 20 parts of plasticizer.
In this embodiment, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether, and triethanolamine.
In the embodiment, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
In this embodiment, the flame retardant is any one or more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
In this embodiment, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
In this embodiment, the antioxidant is any one or more of tocopherol, flavonoid, butylated hydroxyanisole, butylated hydroxytoluene and tertiary butyl hydroquinone.
In this embodiment, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
In the present embodiment, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzenepolycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 100 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
Example 3
As shown in fig. 1, a strippable external shield material according to an embodiment of the present invention comprises the following raw materials by weight: 75 parts of crosslinked polyethylene, 55 parts of styrene-butadiene rubber, 40 parts of conductive carbon black, 190 parts of organic solvent, 3 parts of stripping agent, 25 parts of flame retardant, 4 parts of lubricant, 4 parts of antioxidant, 2 parts of silane coupling agent and 15 parts of plasticizer.
In this embodiment, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether, and triethanolamine.
In the embodiment, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
In this embodiment, the flame retardant is any one or more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
In this embodiment, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
In this embodiment, the antioxidant is any one or more of tocopherol, flavonoid, butylated hydroxyanisole, butylated hydroxytoluene and tertiary butyl hydroquinone.
In this embodiment, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
In the present embodiment, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzenepolycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 100 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
Example 4
As shown in fig. 1, a strippable external shield material according to an embodiment of the present invention comprises the following raw materials by weight: 60 parts of crosslinked polyethylene, 50 parts of styrene-butadiene rubber, 30 parts of conductive carbon black, 160 parts of organic solvent, 2 parts of stripping agent, 15 parts of flame retardant, 2 parts of lubricant, 3 parts of antioxidant, 1 part of silane coupling agent and 10 parts of plasticizer.
In this embodiment, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether, and triethanolamine.
In the embodiment, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
In this embodiment, the flame retardant is any one or more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
In this embodiment, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
In this embodiment, the antioxidant is any one or more of tocopherol, flavonoid, butylated hydroxyanisole, butylated hydroxytoluene and tertiary butyl hydroquinone.
In this embodiment, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
In the present embodiment, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzenepolycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 60 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
Example 5
As shown in fig. 1, a strippable external shield material according to an embodiment of the present invention comprises the following raw materials by weight: 60 parts of crosslinked polyethylene, 50 parts of styrene-butadiene rubber, 30 parts of conductive carbon black, 160 parts of organic solvent, 2 parts of stripping agent, 15 parts of flame retardant, 2 parts of lubricant, 3 parts of antioxidant, 1 part of silane coupling agent and 10 parts of plasticizer.
In this embodiment, the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether, and triethanolamine.
In the embodiment, the stripping agent is any one or combination of more of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
In this embodiment, the flame retardant is any one or more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
In this embodiment, the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin wax and oxidized polyethylene wax.
In this embodiment, the antioxidant is any one or more of tocopherol, flavonoid, butylated hydroxyanisole, butylated hydroxytoluene and tertiary butyl hydroquinone.
In this embodiment, the silane coupling agent is any one of vinyltriethoxysilane and vinyltrimethoxysilane.
In the present embodiment, the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzenepolycarboxylic acid esters, benzoic acid esters, polyhydric alcohol esters, chlorinated hydrocarbons, epoxies, citric acid esters, and polyesters.
The invention also provides a production method of the strippable external shielding material, which comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 140 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
The outer shielding material prepared by the embodiments 1 to 5 has super-strong conductive performance, is convenient to peel off, is easy to recover copper wires in waste cables, has excellent heat resistance and wear resistance, has excellent flame retardant property, is not easy to burn in case of fire, has good oxidation resistance, is not easy to be influenced by external environment, has wider application range and has longer service life.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A strippable outer shield material, which is characterized in that: comprises the following raw materials in parts by weight: 60-90 parts of crosslinked polyethylene, 50-60 parts of styrene-butadiene rubber, 30-50 parts of conductive carbon black, 220 parts of organic solvent 160-5 parts of stripping agent, 15-20 parts of flame retardant, 2-6 parts of lubricant, 3-5 parts of antioxidant, 1-3 parts of silane coupling agent and 10-20 parts of plasticizer.
2. A peelable outer shield according to claim 1, wherein: the organic solvent is any one of styrene, xylene, trichloroethylene, ethylene glycol ether and triethanolamine.
3. A peelable outer shield according to claim 1, wherein: the stripping agent is any one or combination of a plurality of oxidized polyethylene wax, methyl silicone oil and butyronitrile powder.
4. A peelable outer shield according to claim 1, wherein: the flame retardant is any one or combination of more of zinc borate, aluminum hydroxide, magnesium hydroxide and antimony trioxide.
5. A peelable outer shield according to claim 1, wherein: the lubricant is any one or combination of polyethylene wax, white oil, stearate, paraffin and oxidized polyethylene wax.
6. A peelable outer shield according to claim 1, wherein: the antioxidant is any one or combination of more of tocopherol, flavonoid, butyl hydroxy anisole, dibutyl hydroxy toluene and tert-butyl hydroquinone.
7. A peelable outer shield according to claim 1, wherein: the silane coupling agent is any one of vinyl triethoxysilane and vinyl trimethoxysilane.
8. A peelable outer shield according to claim 1, wherein: the plasticizer is any one of aliphatic dibasic acid esters, phthalic acid esters, benzene polyacid esters, benzoic acid esters, polyol esters, chlorinated hydrocarbons, epoxy, citric acid esters and polyesters.
9. A method of producing a peelable outer barrier according to any of claims 1 to 8 in which: the method comprises the following steps:
s1, accurately weighing the cross-linked polyethylene, the styrene-butadiene rubber, the conductive carbon black, the organic solvent, the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer according to the weight ratio of the raw materials;
s2: adding the crosslinked polyethylene, the styrene-butadiene rubber, the conductive carbon black and the organic solvent in parts by weight into a high-speed dispersion machine, stirring at the temperature of 60-140 ℃ for 30-100 minutes at the rotating speed of 500-800 r/min to obtain a mixture A;
s3: adding the stripping agent, the flame retardant, the lubricant, the antioxidant, the silane coupling agent and the plasticizer in the weight parts of S1 into the mixture A, and stirring for 2-4 hours at the rotating speed of 200-800 r/min to obtain a mixture B;
s4: and adding the mixture B into a spray drying granulator for drying granulation to prepare the strippable external shielding material.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554633A (en) * | 2013-10-24 | 2014-02-05 | 苏州市双鑫新材料科技有限公司 | High-voltage cable structure with excellent performance |
| CN107325390A (en) * | 2017-08-02 | 2017-11-07 | 合肥尚涵装饰工程有限公司 | A kind of high-tension cable semiconductive shieldin material |
| CN110229402A (en) * | 2019-05-28 | 2019-09-13 | 东南大学 | A kind of Cross-linked Polyethylene Composites and preparation method thereof of high dc breakdown field strength |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103554633A (en) * | 2013-10-24 | 2014-02-05 | 苏州市双鑫新材料科技有限公司 | High-voltage cable structure with excellent performance |
| CN107325390A (en) * | 2017-08-02 | 2017-11-07 | 合肥尚涵装饰工程有限公司 | A kind of high-tension cable semiconductive shieldin material |
| CN110229402A (en) * | 2019-05-28 | 2019-09-13 | 东南大学 | A kind of Cross-linked Polyethylene Composites and preparation method thereof of high dc breakdown field strength |
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