CN103483678A - Nuclear-grade cable insulation material - Google Patents
Nuclear-grade cable insulation material Download PDFInfo
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- CN103483678A CN103483678A CN201310474432.1A CN201310474432A CN103483678A CN 103483678 A CN103483678 A CN 103483678A CN 201310474432 A CN201310474432 A CN 201310474432A CN 103483678 A CN103483678 A CN 103483678A
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- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/28—Treatment by wave energy or particle radiation
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- 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
- C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
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- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
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- 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
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- C08L23/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C08L23/0869—Acids or derivatives thereof
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- 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
- H01B3/28—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
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- 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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- 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
- H01B3/447—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 acrylic compounds
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- 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
- H01B3/46—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 silicones
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- C—CHEMISTRY; METALLURGY
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- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/04—Polysiloxanes
- C08G77/14—Polysiloxanes containing silicon bound to oxygen-containing groups
- C08G77/18—Polysiloxanes containing silicon bound to oxygen-containing groups to alkoxy or aryloxy groups
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- 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
- C08J2323/10—Homopolymers or copolymers of propene
- C08J2323/14—Copolymers of propene
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- 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
- C08J2323/16—Ethene-propene or ethene-propene-diene copolymers
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- 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
- C08J2423/10—Homopolymers or copolymers of propene
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- 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
- C08J2423/16—Ethene-propene or ethene-propene-diene copolymers
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- C08L2203/00—Applications
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Abstract
The invention relates to a nuclear-grade cable insulation material which is composed of the following components in parts by weight: 30-60 parts of ethylene-methyl methacrylate copolymer, 40-70 parts of ethylene-propylene monomer, 5-15 parts of alkoxy polydimethylsiloxane, 90-110 parts of nano magnesium hydroxide, 5-10 parts of boron nitride, 0.5-2 parts of ultraviolet absorbent and 4-12 parts of antioxidant. The service life of the nuclear-grade cable insulation material can reach 60 years (at 90 DEG C), the radiation-resistant dose is up to 2400KGy, the tensile strength and elongation at break are high, and the nuclear-grade cable insulation material can pass a single-cable vertical burning test and satisfies the requirements for a third-generation nuclear power station.
Description
Technical field
The present invention relates to the cable that a kind of Nuclear power plants is used.
Background technology
On October 24th, 2012, the Premier Wen Jiabao holds Executive Meeting of the State Council, again discusses and passes through " Nuclear Safety planning (2011-2020) " and " the nuclear power Long-and Medium-term Development is planned (2011-2020) ".This Executive Meeting of the State Council claims, want " rationally holding ", " moving forward steadily " on construction rhythm, " safe recovery is normally built ", on access threshold, " newly-built nuclear power generating sets must meet three generations's safety standards ", " according to the newly-built nuclear power projects of the highest safety requirements in the whole world.”
The generation Ⅲ nuclear power station has proposed clear and definite requirement to cable, and the cable under harsh and unforgiving environments will reach 60 years (90 ℃ of temperature) work-ing life, and radiation dose will reach 2400KGy, and halogen-free flameproof will pass through the unit cable testing vertical flammability.At present the cable under the harsh and unforgiving environments of generation Ⅲ nuclear power station, all from external import, has part producing producer to be developed although domestic, realize that engineering is applied to have got long long way to go.
Summary of the invention
The technical problem to be solved in the present invention is: a kind of core level cable insulating material is provided, can reach 60 years its work-ing life (90 ℃ of temperature), radiation hardness dosage reaches 2400KGy, and tensile strength and elongation at break are large, can, by the unit cable testing vertical flammability, meet the requirement of generation Ⅲ nuclear power station.
In order to solve the problems of the technologies described above, the present invention proposes following technical scheme: a kind of core level cable insulating material is comprised of the following component according to weighing scale: ethylene-methyl methacrylate methyl terpolymer 30-60 part; Ethylene propylene rubber 40-70 part; Alkoxyl group polydimethylsiloxane 5-15 part; Nano-sized magnesium hydroxide 90-110 part; Boron nitride 5-10 part; UV light absorber 0.5-2 part; Oxidation inhibitor 4-12 part.
The further restriction of technique scheme is: described UV light absorber be 2-(2 '-hydroxyl-3 ', 5 '-bis-tertiary amyl phenyl) benzotriazole.
The further restriction of technique scheme is: described oxidation inhibitor be four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) is mixed and forms according to 1:1.
The further restriction of technique scheme is: this core level cable insulating material is comprised of the following component according to weighing scale: 30 parts of ethylene-methyl methacrylate methyl terpolymers, 70 parts of ethylene propylene rubbers, 5 parts of alkoxyl group polydimethylsiloxanes, 110 parts of nano-sized magnesium hydroxides, 5 parts of boron nitride, 0.5 part of UV light absorber, 4 parts, oxidation inhibitor.
The further restriction of technique scheme is: this core level cable insulating material is comprised of the following component according to weighing scale: 60 parts of ethylene-methyl methacrylate methyl terpolymers, 40 parts of ethylene propylene rubbers, 15 parts of alkoxyl group polydimethylsiloxanes, 90 parts of nano-sized magnesium hydroxides, 10 parts of boron nitride, 2 parts of UV light absorber, 12 parts, oxidation inhibitor.
The further restriction of technique scheme is: this core level cable insulating material is comprised of the following component according to weighing scale: 45 parts of ethylene-methyl methacrylate methyl terpolymers, 55 parts of ethylene propylene rubbers, 10 parts of alkoxyl group polydimethylsiloxanes, 100 parts of nano-sized magnesium hydroxides, 8 parts of boron nitride, 1 part of UV light absorber, 8 parts, oxidation inhibitor.
Compared with prior art, the present invention has following beneficial effect:
1, the heat aging property of ethylene propylene rubber is very excellent, with UV light absorber, oxidation inhibitor, jointly uses, and can meet at 90 ℃ of temperature and use the requirement of 60 years;
2, boron nitride, UV light absorber and oxidation inhibitor have the synergistic effect that radioprotective is aging, can significantly improve the radiation resistance of material, and after radiation dose reaches 2400KGy, its elongation at break is greater than 50%;
3, alkoxyl group polydimethylsiloxane and nano-sized magnesium hydroxide have obvious synergistic fire retardation, under the prerequisite met the demands at tensile strength and elongation at break, can pass through the unit cable testing vertical flammability.
Embodiment
The present invention proposes a kind of core level cable insulating material, and it is comprised of the following component according to weighing scale: ethylene-methyl methacrylate methyl terpolymer 30-60 part; Ethylene propylene rubber 40-70 part; Alkoxyl group polydimethylsiloxane 5-15 part; Nano-sized magnesium hydroxide 90-110 part; Boron nitride 5-10 part; UV light absorber 0.5-2 part; Oxidation inhibitor 4-12 part.
Described UV light absorber be 2-(2 '-hydroxyl-3 ', 5 '-bis-tertiary amyl phenyl) benzotriazole.
Described oxidation inhibitor be four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) is mixed and forms according to 1:1.
The preparation method of above-mentioned core level cable insulating material comprises the steps:
Step 1: get ethylene-methyl methacrylate methyl terpolymer 30-60 part; Ethylene propylene rubber 40-70 part; Alkoxyl group polydimethylsiloxane 5-15 part; Nano-sized magnesium hydroxide 90-110 part; Boron nitride 5-10 part; UV light absorber 0.5-2 part; Oxidation inhibitor 4-12 part;
Step 2: by banburying mixing granulator or parallel double-screw extruder mixing granulator, obtain plastic pellet.
Step 3: extrude stranding by single screw extrusion machine, utilize Co 60 or rumbatron to carry out radiation crosslinking, radiation dose is 100-200KGy.
Preparation Example 1
Get 30 parts of ethylene-methyl methacrylate methyl terpolymers, 70 parts of ethylene propylene rubbers, 5 parts of alkoxyl group polydimethylsiloxanes, 110 parts of nano-sized magnesium hydroxides, 5 parts of boron nitride, 0.5 part of UV light absorber, 4 parts, oxidation inhibitor.
By banburying mixing granulator or parallel double-screw extruder mixing granulator, obtain plastic pellet.
Extrude stranding by single screw extrusion machine, utilize Co 60 or rumbatron to carry out radiation crosslinking, radiation dose is 100-200KGy.
Preparation Example 2
Get 60 parts of ethylene-methyl methacrylate methyl terpolymers, 40 parts of ethylene propylene rubbers, 15 parts of alkoxyl group polydimethylsiloxanes, 90 parts of nano-sized magnesium hydroxides, 10 parts of boron nitride, 2 parts of UV light absorber, 12 parts, oxidation inhibitor.
By banburying mixing granulator or parallel double-screw extruder mixing granulator, obtain plastic pellet.
Extrude stranding by single screw extrusion machine, utilize Co 60 or rumbatron to carry out radiation crosslinking, radiation dose is 100-200KGy.
Preparation Example 3
Get 45 parts of ethylene-methyl methacrylate methyl terpolymers, 55 parts of ethylene propylene rubbers, 10 parts of alkoxyl group polydimethylsiloxanes, 100 parts of nano-sized magnesium hydroxides, 8 parts of boron nitride, 1 part of UV light absorber, 8 parts, oxidation inhibitor.
By banburying mixing granulator or parallel double-screw extruder mixing granulator, obtain plastic pellet.
Extrude stranding by single screw extrusion machine, utilize Co 60 or rumbatron to carry out radiation crosslinking, radiation dose is 100-200KGy.
Material property is as shown in the table
Claims (6)
1. a core level cable insulating material, be comprised of the following component according to weighing scale: ethylene-methyl methacrylate methyl terpolymer 30-60 part; Ethylene propylene rubber 40-70 part; Alkoxyl group polydimethylsiloxane 5-15 part; Nano-sized magnesium hydroxide 90-110 part; Boron nitride 5-10 part; UV light absorber 0.5-2 part; Oxidation inhibitor 4-12 part.
2. a kind of core level cable insulating material according to claim 1 is characterized in that: described UV light absorber be 2-(2 '-hydroxyl-3 ', 5 '-bis-tertiary amyl phenyl) benzotriazole.
3. a kind of core level cable insulating material according to claim 1, it is characterized in that: described oxidation inhibitor is four (β-(3, the 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and 4,4 '-thiobis (the 6-tertiary butyl-3-methylphenol) is mixed and forms according to 1:1.
4. a kind of core level cable insulating material according to claim 1, it is characterized in that: this core level cable insulating material is comprised of the following component according to weighing scale: 30 parts of ethylene-methyl methacrylate methyl terpolymers, 70 parts of ethylene propylene rubbers, 5 parts of alkoxyl group polydimethylsiloxanes, 110 parts of nano-sized magnesium hydroxides, 5 parts of boron nitride, 0.5 part of UV light absorber, 4 parts, oxidation inhibitor.
5. a kind of core level cable insulating material according to claim 1, it is characterized in that: this core level cable insulating material is comprised of the following component according to weighing scale: 60 parts of ethylene-methyl methacrylate methyl terpolymers, 40 parts of ethylene propylene rubbers, 15 parts of alkoxyl group polydimethylsiloxanes, 90 parts of nano-sized magnesium hydroxides, 10 parts of boron nitride, 2 parts of UV light absorber, 12 parts, oxidation inhibitor.
6. a kind of core level cable insulating material according to claim 1, it is characterized in that: this core level cable insulating material is comprised of the following component according to weighing scale: 45 parts of ethylene-methyl methacrylate methyl terpolymers, 55 parts of ethylene propylene rubbers, 10 parts of alkoxyl group polydimethylsiloxanes, 100 parts of nano-sized magnesium hydroxides, 8 parts of boron nitride, 1 part of UV light absorber, 8 parts, oxidation inhibitor.
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CN201310474432.1A CN103483678A (en) | 2013-10-12 | 2013-10-12 | Nuclear-grade cable insulation material |
PCT/CN2013/090818 WO2015051581A1 (en) | 2013-10-12 | 2013-12-29 | Insulating material for nuclear grade electric cables |
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CN201310474432.1A CN103483678A (en) | 2013-10-12 | 2013-10-12 | Nuclear-grade cable insulation material |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107227025A (en) * | 2017-06-30 | 2017-10-03 | 上海至正道化高分子材料股份有限公司 | A kind of special high temperature resistant radiation hardness Insulation Material of nuclear power station and preparation method thereof |
CN113912928A (en) * | 2021-10-18 | 2022-01-11 | 江苏亨通电子线缆科技有限公司 | Halogen-free flame-retardant polyolefin cable material for automobiles and preparation method thereof |
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CN102924779B (en) * | 2012-11-01 | 2015-01-28 | 长园电子(东莞)有限公司 | Bus bar heat-shrinkable tube and preparation method thereof |
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2013
- 2013-10-12 CN CN201310474432.1A patent/CN103483678A/en active Pending
- 2013-12-29 WO PCT/CN2013/090818 patent/WO2015051581A1/en active Application Filing
Patent Citations (3)
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CN101661803A (en) * | 2009-08-07 | 2010-03-03 | 深圳市长园集团股份有限公司 | 1E-level K1-type shrinkable tube used in nuclear power station and preparation method thereof |
CN102432937A (en) * | 2011-08-18 | 2012-05-02 | 长园集团股份有限公司 | 1E-level K1-type halogen-free flame-retardant heat-shrinkable pipe for nuclear power plant and preparation method thereof |
CN102877563A (en) * | 2012-10-25 | 2013-01-16 | 重庆龙者低碳环保科技有限公司 | Process for producing A2-level fireproof heat preservation plate |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107227025A (en) * | 2017-06-30 | 2017-10-03 | 上海至正道化高分子材料股份有限公司 | A kind of special high temperature resistant radiation hardness Insulation Material of nuclear power station and preparation method thereof |
CN113912928A (en) * | 2021-10-18 | 2022-01-11 | 江苏亨通电子线缆科技有限公司 | Halogen-free flame-retardant polyolefin cable material for automobiles and preparation method thereof |
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Application publication date: 20140101 |