CN105949603A - Antioxidative and anti-degradation cable sheath and preparation method thereof - Google Patents
Antioxidative and anti-degradation cable sheath and preparation method thereof Download PDFInfo
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- CN105949603A CN105949603A CN201610541237.XA CN201610541237A CN105949603A CN 105949603 A CN105949603 A CN 105949603A CN 201610541237 A CN201610541237 A CN 201610541237A CN 105949603 A CN105949603 A CN 105949603A
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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
- C08L23/0892—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms containing monomers with other atoms than carbon, hydrogen or oxygen atoms
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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
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
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Abstract
The invention discloses an antioxidative and anti-degradation cable sheath, which is prepared from the following materials in parts by weight: ethylene-tetrafluoroethylene copolymers, perfluoroethylene-propylene, hydroperoxyl radical and carbon free radical capture agents, phosphite ester, mineral fillers, fire retardants, pyrolysis gas overflowing inhibiting agents, 2-phenylbenzimidazole-5-sulfoacid, calcium-zinc stabilizers, mineral oil and pigment. A preparation method of the antioxidative and anti-degradation cable sheath comprises the steps of material preparation, drying, mixing, mixed refining, extrusion particle cutting, drying and package. The prepared cable sheath material has excellent antioxidative and anti-degradation performance; the performance is more stable; higher use temperature range, higher irradiation-resistant dosage and higher elasticity are realized; so that the insulation material has good flexibility performance; the service life is long; the antioxidative and anti-degradation cable sheath is suitable for wide fields, and has great application prospects in aerospace conducting wires, ship cables, robot electric wires, medical electric wires, locomotive engine cables and the like.
Description
Technical field
The present invention relates to technical field of cables, particularly relate to a kind of antioxidation anti-degraded cable sheath and preparation method thereof.
Background technology
Cable is the general designation of the article such as optical cable, cable.The purposes of cable has a lot, be mainly used in control install, connect set
The multiple action such as standby, to transmit electric power, is common and indispensable a kind of thing in daily life.Owing to wanting life-time service, its
Working environment such as temperature, radiation, acid-base value etc., matrix fluorine material is during processing and using, and matrix material can occur not
Discharge fluohydric acid gas and the release of other gas componants and spilling with the cracking of degree, cable sheath is damaged, therefore
The crust needing cable has the degradation-resistant characteristic of antioxidation, thus could extend the service life of cable.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of antioxidation anti-degraded cable sheath and system thereof
Preparation Method.
A kind of antioxidation anti-degraded cable sheath that the present invention proposes, described cable sheath includes the material of following weight portion
Material:
Preferably, described cable sheath includes the material of following weight portion:
Preferably, described cable sheath includes the material of following weight portion:
Preferably, described hydroperoxyl radical and carbon free radical scavenger include that Emulsion polymerization and carbon radicals catch
Agent, the weight ratio of described Emulsion polymerization and carbon free radical scavenger is 7:3.
Preferably, described Emulsion polymerization is 2,6-di-tert-butyl-4-methy phenol, double (3,5 di-t-butyl-4-
Hydroxy phenyl) thioether, one or more in four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester.
Preferably, described carbon free radical scavenger is 1,4-benzoquinone, tetramethyl-benzoquinone, phenyl-N-tert-butylnitrone, benzo furan
Mutter one or more in ketone.
Preferably, described mineral filler includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, described Muscovitum, Talcum
Powder, Kaolin, Anhydrite, the weight ratio of barium sulfate are 1:2:1.5:0.8:1.2.
Preferably, described fire retardant is antimony oxide, Firebrake ZB, one or more in magnesium hydroxide.
Preferably, described suppression cracked gas overflows agent is one or more in zinc oxide, magnesium oxide, calcium hydroxide.
Preferably, described pigment is titanium oxide or calcium carbonate or white carbon black.
The preparation method of a kind of antioxidation anti-degraded cable sheath, it is characterised in that it comprises the steps of
Dispensing: with raw material by weight；
It is dried: ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) are placed under temperature 70-100 DEG C environment and are dried
5min；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added reciprocating single screw mixing and squeeze
Go out in machine, and add mineral filler, fire retardant, suppression cracked gas spilling agent, calcium zinc stabilizer, pigment stirring and evenly mixing 1-
3min, is subsequently adding hydroperoxyl radical and carbon free radical scavenger, phosphite ester mixing 1-2min；
Extrusion pelletizing: mixed material is squeezed by reciprocating single-screw intermixing extruder or double screw extruder goes out to make
Grain；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
In the present invention, matrix material uses ethylene tetrafluoroethylene copolymer, is maintaining PTFE good heat-resisting, chemically-resistant
While performance and electrical insulation capability, radiation hardness and mechanical performance have to be improved significantly, and hot strength can reach 50MPa,
Close to politef 2 times；Perfluoroethylene-propylene (copolymer) can be modified with ethylene tetrafluoroethylene copolymer co-crosslinking, improves heatproof in structure
The C-F segment content that performance is high, thus improve temperature-resistance characteristic.This insulant can be made to be resistant to 400 degree of high temperature 2 hours, and
Insulation system will not be destroyed；For the shortcoming of the oxidizable degraded of ethylene tetrafluoroethylene copolymer, use Emulsion polymerization and
The weight ratio of carbon free radical scavenger is hydroperoxyl radical compounding for 7:3 and carbon free radical scavenger, can catch and cause because being heated
Molecular chain rupture and the free radical that produces so that it is in processing and the degree that effectively reduces degraded during using, it is to avoid molecular weight
Being greatly lowered, improve Stability Analysis of Structures qualitative, the anti-degradation effect of antioxidation can promote 2-3 times；Add phosphite ester as auxiliary
Antioxidant, Main Function is hydroperoxide decomposition, and the generation of hydroperoxides and accumulation are that high-molecular organic material is degraded
Crucial step, after certain density hydroperoxides generate, free-radical oxidation reaction will quickly propel, with hydroperoxyl radical and
Carbon free radical scavenger has the synergism of excellence, can improve on the basis of adding hydroperoxyl radical and carbon free radical scavenger
The anti-degradation effect of antioxidation of 70%-80%；The mineral filler that addition Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate are compounding,
Make mineral filler be fixed up in perfluoroethylene-propylene (copolymer), ethylene tetrafluoroethylene copolymer cross-linked structure, improve material from entirety
The radiation-resistant property of material 60%-90%；During matrix material processing and using, matrix material can occur in various degree
Cracking and discharge fluohydric acid gas, adding the suppression cracked gas made of metal-oxide overflows agent, can with gas reaction and reduce
The release of gas and spilling, to avoid the gas componant destruction to equipment；Mineral oil can be mutually with ethylene tetrafluoroethylene copolymer
Miscible integrator, can significantly improve the physical property of goods and extend ageing time, and calcium zinc stabilizer used time, has good
Synergism, additionally, also have good lubricity, the compatibility and dispersion performance；Add white filler TiO2, CaCO3,
Or black stuffing by carbon melena is distinguished by use；The cable sheath material prepared has the anti-degradability of excellent antioxidation
Can, performance is more stable, has higher use temperature range and resistance to irradiation dose, and has higher elasticity so that this is exhausted
Edge material has splendid flexility, and insulation tensile strength is 20-40.00MPa, elongation at break is 100%-300%, resistance to
Temperature grade is: 150-200 DEG C, can tolerate irradiation dose and reach 500Mrad, and service life is long, is suitable for field the most widely,
As all there is huge application prospect at aviation wire, ship cable, robot electric wire, medical treatment electric wire, Locomotive engine cable etc..
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is explained orally further.
Embodiment 1
A kind of antioxidation anti-degraded cable sheath, described cable sheath includes the material of following weight portion:
Hydroperoxyl radical and carbon free radical scavenger include Emulsion polymerization and carbon free radical scavenger, and hydroperoxyl radical is caught
The weight ratio catching agent and carbon free radical scavenger is 7:3, and Emulsion polymerization is 2,6-di-tert-butyl-4-methy phenol, carbon
Free radical scavenger is 1,4-benzoquinone, and mineral filler includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, Muscovitum, Pulvis Talci,
Kaolin, Anhydrite, the weight ratio of barium sulfate are 1:2:1.5:0.8:1.2, and fire retardant is antimony oxide, and suppression cracked gas overflows
Going out agent is zinc oxide, and pigment is titanium oxide.
The preparation method of a kind of antioxidation anti-degraded cable sheath, comprises the steps of
Dispensing: with raw material by weight；
It is dried: ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) are placed under temperature 70 C environment and are dried 30min；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add ore deposit
Thing filler, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 1min, are subsequently adding hydroperoxyl radical
With carbon free radical scavenger, phosphite ester mixing 1min；
Extrusion pelletizing: mixed material is made by reciprocating single-screw intermixing extruder or double screw extruder extrusion
Grain；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
After testing, indices is obtained cable sheath:
Melt index: 12g/10min；
Insulation tensile strength: 40MPa；
Elongation at break: 150%；
Secant modulus: 290MPa；
Temperature resistant grade: 200 DEG C (can life-time service temperature)
Short-period used temperature can reach 400 DEG C, 2 hours, still is able to keep intactly insulation system, by 3000V voltage 5
Minute voltage test.
Radiation-resistant property, can tolerate irradiation dose and reaches 500Mrad.
Embodiment 2
A kind of antioxidation anti-degraded cable sheath, described cable sheath includes the material of following weight portion:
Hydroperoxyl radical and carbon free radical scavenger include Emulsion polymerization and carbon free radical scavenger, and hydroperoxyl radical is caught
The weight ratio catching agent and carbon free radical scavenger is 7:3, and Emulsion polymerization is 2, and 6-di-tert-butyl-4-methy phenol is with double
(3,5 di-tert-butyl-hydroxy phenyl) thioether, carbon free radical scavenger is tetramethyl-benzoquinone and phenyl-N-tert-butylnitrone, ore deposit
Thing filler includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, Muscovitum, Pulvis Talci, Kaolin, Anhydrite, the weight of barium sulfate
Ratio is 1:2:1.5:0.8:1.2, and fire retardant is magnesium hydroxide, and it is magnesium oxide and calcium hydroxide that suppression cracked gas overflows agent, face
Material is calcium carbonate.
The preparation method of a kind of antioxidation anti-degraded cable sheath, comprises the steps of
Dispensing: with raw material by weight；
It is dried: by ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) at 100 DEG C of dry 60min of temperature；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add ore deposit
Thing filler, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 3min, are subsequently adding hydroperoxyl radical
With carbon free radical scavenger, phosphite ester mixing 2min；
Extrusion pelletizing: by mixed material by reciprocating single-screw intermixing extruder extruding pelletization；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
After testing, indices is obtained cable sheath:
Melt index: 32g/10min；
Insulation tensile strength: 28MPa；
Elongation at break: 200%；
Secant modulus: 320MPa；
Temperature resistant grade: 200 DEG C (can life-time service temperature)
Short-period used temperature can reach 400 DEG C, 2 hours, still is able to keep intactly insulation system, by 3000V voltage 5
Minute voltage test.
Radiation-resistant property, can tolerate irradiation dose and reaches 500Mrad.
Embodiment 3
A kind of antioxidation anti-degraded cable sheath, described cable sheath includes the material of following weight portion:
Hydroperoxyl radical and carbon free radical scavenger include Emulsion polymerization and carbon free radical scavenger, and hydroperoxyl radical is caught
The weight ratio catching agent and carbon free radical scavenger is 7:3, and Emulsion polymerization is double (3,5 di-tert-butyl-hydroxy phenyl)
Thioether and four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, carbon free radical scavenger is benzofuran
Ketone, mineral filler includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate
Weight ratio be 1:2:1.5:0.8:1.2, fire retardant is Firebrake ZB, suppression cracked gas overflow agent be calcium hydroxide, pigment is
White carbon black.
The preparation method of a kind of antioxidation anti-degraded cable sheath, comprises the steps of
Dispensing: with raw material by weight；
It is dried: by ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) at 75 DEG C of dry 35min of temperature；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add ore deposit
Thing filler, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 2min, are subsequently adding hydroperoxyl radical
With carbon free radical scavenger, phosphite ester mixing 1.5min；
Extrusion pelletizing: by mixed material by reciprocating single-screw intermixing extruder extruding pelletization；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
After testing, indices is obtained cable sheath:
Melt index: 40g/10min；
Insulation tensile strength: 38MPa；
Elongation at break: 170%；
Secant modulus: 320MPa；
Temperature resistant grade: 200 DEG C (can life-time service temperature)
Short-period used temperature can reach 400 DEG C, 2 hours, still is able to keep intactly insulation system, by 3000V voltage 5
Minute voltage test.
Radiation-resistant property, can tolerate irradiation dose and reaches 500Mrad.
Embodiment 4
A kind of antioxidation anti-degraded cable sheath, described cable sheath includes the material of following weight portion:
Hydroperoxyl radical and carbon free radical scavenger include Emulsion polymerization and carbon free radical scavenger, and hydroperoxyl radical is caught
The weight ratio catching agent and carbon free radical scavenger is 7:3, and Emulsion polymerization is 2,6-di-tert-butyl-4-methy phenol and four
[β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester, carbon free radical scavenger is 1,4-benzoquinone and benzofuran
Ketone, mineral filler includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate
Weight ratio be 1:2:1.5:0.8:1.2, fire retardant is antimony oxide and magnesium hydroxide, suppression cracked gas overflow agent be oxygen
Changing zinc and calcium hydroxide, pigment is white carbon black.
The preparation method of a kind of antioxidation anti-degraded cable sheath, comprises the steps of
Dispensing: with raw material by weight；
It is dried: by ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) at 85 DEG C of dry 45min of temperature；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add ore deposit
Thing filler, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 1.5min, are subsequently adding hydrogen freely
Base and carbon free radical scavenger, phosphite ester mixing 1.8min；
Extrusion pelletizing: by mixed material by reciprocating single-screw intermixing extruder extruding pelletization；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
After testing, indices is obtained cable sheath:
Melt index: 29g/10min；
Insulation tensile strength: 39MPa；
Elongation at break: 270%；
Secant modulus: 310MPa；
Temperature resistant grade: 200 DEG C (can life-time service temperature)
Short-period used temperature can reach 400 DEG C, 2 hours, still is able to keep intactly insulation system, by 3000V voltage 5
Minute voltage test.
Radiation-resistant property, can tolerate irradiation dose and reaches 500Mrad.
Embodiment 5
A kind of antioxidation anti-degraded cable sheath, described cable sheath includes the material of following weight portion:
Hydroperoxyl radical and carbon free radical scavenger include Emulsion polymerization and carbon free radical scavenger, and hydroperoxyl radical is caught
The weight ratio catching agent and carbon free radical scavenger is 7:3, and Emulsion polymerization is 2,6-di-tert-butyl-4-methy phenol, double
(3,5 di-tert-butyl-hydroxy phenyl) thioether and four [β-(3,5-di-tert-butyl-hydroxy phenyl) propanoic acid] pentaerythritol ester,
Carbon free radical scavenger is 1,4-benzoquinone, tetramethyl-benzoquinone, phenyl-N-tert-butylnitrone and benzofuranone, and mineral filler includes
Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, Muscovitum, Pulvis Talci, Kaolin, Anhydrite, the weight ratio of barium sulfate are 1:2:
1.5:0.8:1.2, fire retardant is antimony oxide, Firebrake ZB and magnesium hydroxide, and it is zinc oxide, oxygen that suppression cracked gas overflows agent
Changing magnesium and calcium hydroxide, pigment is white carbon black.
The preparation method of a kind of antioxidation anti-degraded cable sheath, comprises the steps of
Dispensing: with raw material by weight；
It is dried: by ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) at 95 DEG C of dry 55min of temperature；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add ore deposit
Thing filler, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 2.5min, are subsequently adding hydrogen freely
Base and carbon free radical scavenger, phosphite ester mixing 2min；
Extrusion pelletizing: by mixed material by reciprocating single-screw intermixing extruder extruding pelletization；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
After testing, indices is obtained cable sheath:
Melt index: 36g/10min；
Insulation tensile strength: 35MPa；
Elongation at break: 300%；
Secant modulus: 340MPa；
Temperature resistant grade: 200 DEG C (can life-time service temperature)
Short-period used temperature can reach 400 DEG C, 2 hours, still is able to keep intactly insulation system, by 3000V voltage 5
Minute voltage test.
Radiation-resistant property, can tolerate irradiation dose and reaches 500Mrad.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (10)
1. an antioxidation anti-degraded cable sheath, it is characterised in that described cable sheath includes the material of following weight portion:
A kind of antioxidation anti-degraded cable sheath the most according to claim 1, it is characterised in that described cable sheath bag
Include the material of following weight portion:
A kind of antioxidation anti-degraded cable sheath the most according to claim 1, it is characterised in that described cable sheath bag
Include the material of following weight portion:
4. according to a kind of antioxidation anti-degraded cable sheath described in claim 1 or 2 or 3, it is characterised in that described hydrogen is freely
Base and carbon free radical scavenger include that Emulsion polymerization and carbon free radical scavenger, described Emulsion polymerization and carbon are certainly
It is 7:3 by the weight ratio of base agent for capturing.
A kind of antioxidation anti-degraded cable sheath the most according to claim 4, it is characterised in that described hydroperoxyl radical catches
Agent is 2,6-di-tert-butyl-4-methy phenol, double (3,5 di-tert-butyl-hydroxy phenyl) thioether, four [β-(3,5-bis-tertiary fourths
Base-4-hydroxy phenyl) propanoic acid] one or more in pentaerythritol ester.
A kind of antioxidation anti-degraded cable sheath the most according to claim 4, it is characterised in that described carbon radicals catches
Agent is one or more in 1,4-benzoquinone, tetramethyl-benzoquinone, phenyl-N-tert-butylnitrone, benzofuranone.
7. according to a kind of antioxidation anti-degraded cable sheath described in claim 1 or 2 or 3, it is characterised in that described mineral are filled out
Material includes Muscovitum, Pulvis Talci, Kaolin, Anhydrite, barium sulfate, described Muscovitum, Pulvis Talci, Kaolin, Anhydrite, the weight of barium sulfate
Ratio is 1:2:1.5:0.8:1.2.
8. according to a kind of antioxidation anti-degraded cable sheath described in claim 1 or 2 or 3, it is characterised in that described fire retardant
For one or more in antimony oxide, Firebrake ZB, magnesium hydroxide；It is zinc oxide, oxygen that described suppression cracked gas overflows agent
Change one or more in magnesium, calcium hydroxide.
9. according to a kind of antioxidation anti-degraded cable sheath described in claim 1 or 2 or 3, it is characterised in that described pigment is
Titanium oxide or calcium carbonate or white carbon black.
10., according to the preparation method of a kind of antioxidation anti-degraded cable sheath described in claim 1 or 2 or 3, its feature exists
In, it comprises the steps of
Dispensing: with raw material by weight；
It is dried: by ethylene-tetrafluoroethylene copolymer, perfluoroethylene-propylene (copolymer) at the dry 30-60min of temperature 70-100 DEG C；
Mixing: ethylene-tetrafluoroethylene copolymer after the drying, perfluoroethylene-propylene (copolymer) are added in high mixer, and add mineral and fill out
Material, fire retardant, suppression cracked gas overflow agent, calcium zinc stabilizer, pigment stirring and evenly mixing 1-3min, be subsequently adding hydroperoxyl radical and
Carbon free radical scavenger, phosphite ester mixing 1-2min；
Extrusion pelletizing: by mixed material by reciprocating single-screw intermixing extruder extruding pelletization；
Dry packing: be dried 30min in the environment of temperature is 80 DEG C, then pack.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107337882A (en) * | 2017-08-02 | 2017-11-10 | 胡沛 | A kind of Aero-Space cable plastics and preparation method thereof |
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| CN104629159A (en) * | 2015-02-05 | 2015-05-20 | 中广核三角洲（江苏）塑化有限公司 | Crosslinked ethylene-tetrafluoroethylene copolymer insulating material |
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| CN107337882A (en) * | 2017-08-02 | 2017-11-10 | 胡沛 | A kind of Aero-Space cable plastics and preparation method thereof |
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Application publication date: 20160921 |