CN108034115A - A kind of used in nuclear power station cross-linking radiation insulating material for communication cables and preparation method thereof - Google Patents
A kind of used in nuclear power station cross-linking radiation insulating material for communication cables and preparation method thereof Download PDFInfo
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- 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
- C08L23/06—Polyethene
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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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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
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- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2207/06—Properties of polyethylene
- C08L2207/066—LDPE (radical process)
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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
- C08L2312/00—Crosslinking
- C08L2312/06—Crosslinking by radiation
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Abstract
The invention discloses a kind of used in nuclear power station cross-linking radiation insulating material for communication cables and preparation method thereof and cable, wherein, the insulating materials is made of following compositions in parts by mass：30~60 parts of low density polyethylene (LDPE), 10~20 parts of polypropylene, 5~10 parts of phenyl siloxane rubber, 20~40 parts of high density polyethylene (HDPE), 0.5~1 part of stabilizer, 0.3~1 part of crosslinking coagent, 0.2~1 part of composite antioxidant and 0.1~1 part of Anti-radiation assistant, 0.1~0.5 part of processing aid etc..The CABLE MATERIALS of the present invention has excellent electrical property, can be used in meeting requirement of the communication cable insulating materials to dielectric properties；With excellent processing performance, the requirement of high speed extrusion (500 ms/min of ＞) disclosure satisfy that；In addition there is excellent long-term ageing property and radiation resistance, after electron beam irradiation is crosslinked, disclosure satisfy that generation Ⅲ nuclear power station 60 years (90 degree) thermal life and radiation lifetime requirement, can be used for the occasions such as the indoor communication cable and coaxial cable insulation cable of used in nuclear power station.
Description
Technical field
The invention belongs to used in nuclear power station medium and high voltage cable material field, and in particular to a kind of used in nuclear power station cross-linking radiation communication electricity
Cable Insulation Material and preparation method thereof.
Background technology
Cables of nuclear power is because of its special use environment, it is desirable to which cable has reliable service life, thermostabilization, moisture-proof
The performances such as property, chemical stability and resistant to high energy radiation.Therefore, it is higher to it is also proposed for the cable material of cables of nuclear power
Performance requirement.
It is existing to be used for communication cable Insulation Material, it is intermolecular under the action of long-term heat ageing and radiative aging
Chemical bond can be broken, and produce living radical or active particle, and can further be chemically reacted, and at the same time, be led to
It is naked copper conducting wire that cable, which is interrogated, with conductor, can accelerate the aging of insulating materials in case of heat, be chronically under such environment,
Finally the performance of material is increasingly deteriorated, not only influence the transmission of signal, can not more meet cables of nuclear power 60 (90 degree)
, there is very big security risk in the service life in year.
The content of the invention
The first object of the present invention is to obtain a kind of overcome the deficiencies in the prior art, can make for a long time under nuclear power plant environment
With for indoor communication and the used in nuclear power station cross-linking radiation insulating material for communication cables coaxially communicated.
The second object of the present invention is to obtain a kind of overcome the deficiencies in the prior art, can make for a long time under nuclear power plant environment
With for indoor communication and the preparation method of the used in nuclear power station cross-linking radiation insulating material for communication cables coaxially communicated.
The third object of the present invention is to obtain a kind of overcome the deficiencies in the prior art, can make for a long time under nuclear power plant environment
With for indoor communication and the cross-linking radiation cable coaxially communicated.
Therefore, the first aspect of the present invention provides a kind of used in nuclear power station cross-linking radiation insulating material for communication cables, the electricity
Cable material includes：Low density polyethylene (LDPE), polypropylene, phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking coagent, compound antioxygen
Agent, Anti-radiation assistant, processing aid etc..Wherein, following components is included according to mass parts meter, the CABLE MATERIALS：
In one preferred embodiment of the invention, the finger that melts of the low density polyethylene (LDPE) is 0.8~2.2g/10min.
In one preferred embodiment of the invention, the finger that melts of the high density polyethylene (HDPE) is 1~3g/10min.
In one preferred embodiment of the invention, the phenyl siloxane rubber is methyl vinyl phenyl silicon rubber, institute
It is 30-50%, molecular weight 8-10 ten thousand to state phenyl content.
In one preferred embodiment of the invention, it is described it is polyacrylic melt finger for 0.5~2g/10min with GB/
T3682-2000 methods measure.
In one preferred embodiment of the invention, the stabilizer is zinc stearate, calcium stearate, zinc oxide, water
A kind of any two or more mixing that lives in bovite, hydrotalcite.
In one preferred embodiment of the invention, the composite antioxidant is by Hinered phenols antioxidant, sulfur-bearing antioxygen
Agent is formed with copper resistant agent compounding, and the weight ratio of the Hinered phenols antioxidant, sulfur-bearing antioxidant and copper resistant agent is 4：2：1 to 2：2：
1。
In one preferred embodiment of the invention, the Hinered phenols antioxidant for Hinered phenols antioxidant 1010,
One or any two or more mixing in antioxidant 1098, antioxygen 245.
In one preferred embodiment of the invention, the sulfur-bearing antioxidant is sulfur-bearing anti-oxidant DLTP, antioxidant
300th, the one or any two or more mixing in antioxidant 1035, antioxidant 1081.
In one preferred embodiment of the invention, the copper resistant agent is copper resistant agent MD-1024.
In one preferred embodiment of the invention, the Anti-radiation assistant is UV absorbers and is obstructed amine stabilized
The compounding of agent, wherein, the weight ratio of the UV absorbers and hindered amine stabilizer is 1:1 to 1:2.
In one preferred embodiment of the invention, the UV absorbers are in UV531, UV326, UV327
One or any two or more mixing.
In one preferred embodiment of the invention, the hindered amine stabilizer for UV770, UV944, UV119,
One or any two or more mixing in UV622.
In one preferred embodiment of the invention, the processing aid is the compounding of fluorine processing aid and PE waxes, institute
Weight ratio is stated as 1:1 to 1:2.
In one preferred embodiment of the invention, the crosslinking coagent is triallyl hydroxyurea acid esters (TAC), triolefin
One kind in propyl group isocyanuric acid ester (TAIC), trihydroxy methyl propane trimethyl acrylate (TMPTMA), 1,2- polybutadiene
Or any two or more mixing.
A kind of preparation method of above-mentioned used in nuclear power station cross-linking radiation insulating material for communication cables, its be by low density polyethylene (LDPE),
Polypropylene, high phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking coagent, composite antioxidant, Anti-radiation assistant, processing help
After agent carries out dispensing, it is put into low speed mixer, is stirred at room temperature 1-3 minutes, is mixed evenly, is then made through twin-screw extrusion
Grain, screw zones temperature are：120~130 DEG C of feeding section, 145~150 DEG C of transportation section, 150~170 DEG C of melt zone, head 170
~190 DEG C.
A kind of cross-linking radiation cable, it is prepared by above-mentioned used in nuclear power station cross-linking radiation insulating material for communication cables.
Embodiment
The present inventor is formulated, obtaining one kind can be under nuclear power plant environment by in-depth study extensively by improving
Long-time service, resistance to long-term ageing property, radiation resistance, resistance to harsh environment, dielectric properties are good, mechanical performance it is excellent be used for room
Interior communication and the cross-linking radiation insulated cable material coaxially communicated.The used in nuclear power station cross-linking radiation communication cable insulation of the present inventor
Material, overcomes the deficiency of Conventional communication cable insulating material, the material is had excellent resistance to long-term ageing property, resistance to harsh ring
Border, radiation resistance, signal transmission performance and processing performance, complete the present invention on this basis.
The each component of the used in nuclear power station cross-linking radiation insulating material for communication cables of the present invention is described in detail below：
Low density polyethylene (LDPE)
In one preferred embodiment of the invention, the melt index of the low density polyethylene (LDPE) is 0.8~2.2g/
10min, is measured with GB/T 3682-2000 methods.
High density polyethylene (HDPE)
In one preferred embodiment of the invention, the melt index of the high density polyethylene (HDPE) is 1~3g/10min,
Measured with GB/T 3682-2000 methods.
Polypropylene
In one preferred embodiment of the invention, the polyacrylic melt index is 0.5~2g/10min, with
GB/T 3682-2000 methods measure.
Phenyl siloxane rubber
Phenyl siloxane rubber has an excellent electrical property, low temperature resistant, resistance to nuclear radiation performance and heat resistance, and as phenyl contains
The increase of amount, the radiation resistance of material improve.Phenyl siloxane rubber of the present invention is methyl vinyl phenyl silicon rubber, institute
It is 30-50%, molecular weight 8-10 ten thousand to state phenyl content.
Stabilizer
The stabilizer of the present invention, can realize the synergy with antioxidant with seldom additive amount, realize the length of material
Thermal life phase (90 degree 60 years).In one preferred embodiment of the invention, the stabilizer is zinc stearate, stearic acid
One or any two or more mixing in calcium, zinc oxide, hydrocalumite, hydrotalcite..
Crosslinking coagent
Crosslinking coagent is added in the cross-linking radiation CABLE MATERIALS of the present invention, increases the degree of cross linking after material irradiation, to this hair
The crosslinking coagent added in bright cross-linking radiation CABLE MATERIALS is not specifically limited, and can use various commercially available available crosslinking coagents,
As long as limitation is not produced to the goal of the invention of the present invention.
In one preferred embodiment of the invention, the crosslinking coagent is triallyl hydroxyurea acid esters (TAC), triolefin
One kind in propyl group isocyanuric acid ester (TAIC), trihydroxy methyl propane trimethyl acrylate (TMPTMA), 1,2- polybutadiene
Or any two or more mixing.
Composite antioxidant
Antioxidant, which refers to, can prevent or inhibit the factors such as oxygen, heat, light, ozone, mechanical stress, heavy metal ion destruction system
Moral character energy, the auxiliary agent for extending product storage and service life.The antioxidant that the present invention uses is formed by three kinds of antioxidant compoundings, is had
There is excellent anti-long-term ageing, and long-time service is non-discolouring, does not influence the electrical property and mechanical performance of material.
In one preferred embodiment of the invention, wherein the composite antioxidant by Hinered phenols antioxidant 1010,
At least one of antioxidant 1098, antioxygen 245, sulfur-bearing anti-oxidant DLTP, antioxidant 300, antioxidant 1035, antioxidant 1081
At least one, and copper resistant agent MD-1024 compounding form.Wherein, the Hinered phenols antioxidant, sulfur-bearing antioxidant and copper resistant agent
Weight ratio be 4：2：1 to 2：2：1.
Anti-radiation assistant
The CABLE MATERIALS of the present invention uses in the environment of long-term High energy particles Radiation, and the presence of Anti-radiation assistant can
Material is set to possess excellent radiation resistance.
In one preferred embodiment of the invention, the Anti-radiation assistant is UV absorbers and is obstructed amine stabilized
The compound system of agent, wherein the UV absorbers are at least one of UV531, UV326, UV327；Hindered amine stabilizer
At least one of UV770, UV944, UV119, UV622.Wherein, the weight of the UV absorbers and hindered amine stabilizer
Than for 1:1 to 1:2.
Processing aid
The insulated cable material of the present invention, it is desirable under the conditions of disclosure satisfy that high speed extrusion (500 ms/min of ＞), core surface
Bright and clean flawless processing technology, the presence of processing aid have processing performance great improvement.
In one preferred embodiment of the invention, the processing aid is fluorine processing aid and the compound ligand of PE waxes
System, the weight ratio are 1:1 to 1:2.
Cable product
Present invention also offers one kind to use used in nuclear power station cross-linking radiation communication cable cable product of the present invention.Institute
State cable product and disclosure satisfy that the generation Ⅲ nuclear power station 90 degree service life of 60 years, meet wanting for cables of nuclear power radiation resistance
Ask, there is excellent processing performance and good signal transmission performance.
Preparation method
A kind of preparation method of used in nuclear power station cross-linking radiation insulating material for communication cables, it is by low density polyethylene (LDPE) poly- third
Alkene, phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking coagent, composite antioxidant, Anti-radiation assistant, processing aid etc. into
After row dispensing, it is put into low speed mixer, is stirred at room temperature 1-3 minutes, is mixed evenly, then through double-screw extruding pelletizing,
Screw zones temperature is：120~130 DEG C of feeding section, 145~150 DEG C of transportation section, 150~170 DEG C of melt zone, head 170~
190℃。
It is to be understood that the low density polyethylene (LDPE) described in this part, polypropylene, phenyl siloxane rubber, high density polyethylene (HDPE), stablizes
The component and dosage of agent, crosslinking coagent, composite antioxidant, Anti-radiation assistant, processing aid etc. are as is described elsewhere herein.
A kind of used in nuclear power station cross-linking radiation insulating material for communication cables of the present invention and preparation method thereof has following excellent
Point：
Using the technique absorbed after crosslinking agent, processing technology is simple, and process spillage of material is few, and process safety is stablized,
Equipment investment is relatively low, and comprehensive cost performance is superior.
Using CABLE MATERIALS of the present invention be made cable product disclosure satisfy that the generation Ⅲ nuclear power station 90 degree service life of 60 years and
The requirement of cable radiation resistance.
The used in nuclear power station cross-linking radiation insulating material for communication cables of the present invention, has dielectric properties and processing performance, being capable of room
The processing technology requirement of the request signal transmission and high speed extrusion of interior communication cable and coaxial cable.
In the present invention, term " containing " or " comprising " or " use " represent that various composition can be applied to the mixed of the present invention together
In compound or composition.Therefore, term " mainly by ... form " and " consist of " are included in term " containing " or " comprising "
Or in " use ".
Other aspects of the present invention are apparent to those skilled in the art due to this disclosure
's.
Unless specific instructions, various raw materials of the invention can be by being commercially available；Or the routine side according to this area
Method is prepared.Unless otherwise defined or described herein, all professional and scientific terms and art technology used herein are ripe
It is identical to practice meaning known to personnel.In addition any method similar or impartial to described content and material all can be applied to this
In inventive method.Other aspects of the present invention are aobvious and easy to those skilled in the art due to this disclosure
See.With reference to specific embodiment, the present invention is further explained.It is to be understood that these embodiments be merely to illustrate the present invention and
It is not used in and limits the scope of the invention.The experimental method of actual conditions is not specified in the following example, usually according to national standard
Measure.If without corresponding national standard, according to general international standard, normal condition or according to proposed by manufacturer
Condition carry out.Unless otherwise stated, otherwise all number is parts by weight.
Unless otherwise defined or described herein, all professional and scientific terms used herein and the skilled people of art technology
Meaning known to member is identical.In addition any method similar or impartial to described content and material all can be applied to the present invention
In method.
Embodiment 1
The each component title and each component parts by weight that embodiment 1 is formulated are as shown in table 1：
Table 1
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 50 | Antioxidant 1081 | 0.8 |
| High density polyethylene (HDPE) | 30 | Antioxidant MD-1024 | 0.4 |
| Polypropylene | 15 | UV 326 | 0.3 |
| Phenyl siloxane rubber | 5 | UV 944 | 0.6 |
| TAIC | 0.5 | Fluorine processing aid | 0.2 |
| Calcium stearate | 0.4 | PE waxes | 0.4 |
| Antioxidant 1010 | 0.8 |
Its preparation method is by low density polyethylene (LDPE), polypropylene, phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking
After auxiliary agent, composite antioxidant, Anti-radiation assistant, processing aid etc. carries out dispensing, it is put into low speed mixer, is stirred at room temperature
1-3 minutes, it is mixed evenly, is then through double-screw extruding pelletizing, screw zones temperature：120~130 DEG C of feeding section, transportation section
145~150 DEG C, 150~170 DEG C of melt zone, 170~190 DEG C of head.
Performance detection experiment is carried out to the CABLE MATERIALS in embodiment 1, each performance value is as shown in PERFORMANCE EXAMPLES table 1.
Embodiment 2
The each component title and each component parts by weight that embodiment 2 is formulated are as shown in table 2：
Table 2
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 50 | Antioxidant 1081 | 0.6 |
| High density polyethylene (HDPE) | 30 | Antioxidant MD-1024 | 0.3 |
| Polypropylene | 15 | UV 326 | 0.5 |
| Phenyl siloxane rubber | 5 | UV 944 | 0.6 |
| TAIC | 0.5 | Fluorine processing aid | 0.3 |
| Calcium stearate | 0.8 | PE waxes | 0.4 |
| Antioxidant 1010 | 0.6 |
The preparation method of above-mentioned CABLE MATERIALS is same as Example 1.
Performance detection experiment is carried out to the product in embodiment 2, each performance value is as shown in PERFORMANCE EXAMPLES table 7.
Embodiment 3
The each component title and each component parts by weight that embodiment 3 is formulated are as shown in table 3：
Table 3
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 30 | Antioxidant 300 | 0.8 |
| High density polyethylene (HDPE) | 40 | Antioxidant MD-1024 | 0.4 |
| Polypropylene | 20 | UV 327 | 0.3 |
| Phenyl siloxane rubber | 10 | UV 770 | 0.6 |
| TAIC | 0.5 | Fluorine processing aid | 0.2 |
| Zinc oxide | 0.8 | PE waxes | 0.4 |
| Antioxidant 1098 | 0.6 |
The preparation method of above-mentioned CABLE MATERIALS is same as Example 1.
Performance detection experiment is carried out to the product in embodiment 3, each performance value is as shown in PERFORMANCE EXAMPLES table 7.
Embodiment 4
The each component title and each component parts by weight that embodiment 4 is formulated are as shown in table 4：
Table 4
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 30 | Antioxidant 300 | 0.6 |
| High density polyethylene (HDPE) | 40 | Antioxidant MD-1024 | 0.3 |
| Polypropylene | 20 | UV 327 | 0.5 |
| Phenyl siloxane rubber | 10 | UV 770 | 0.6 |
| TMPTMA | 0.5 | Fluorine processing aid | 0.3 |
| Zinc oxide | 0.4 | PE waxes | 0.4 |
| Antioxidant 1098 | 0.8 |
The preparation method of above-mentioned CABLE MATERIALS is same as Example 1.
Performance detection experiment is carried out to the product in embodiment 4, each performance value is as shown in PERFORMANCE EXAMPLES table 7.
Embodiment 5
The each component title and each component parts by weight that embodiment 5 is formulated are as shown in table 5：
Table 5
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 60 | Anti-oxidant DLTP | 0.8 |
| High density polyethylene (HDPE) | 20 | Antioxidant MD-1024 | 0.4 |
| Polypropylene | 12 | UV 531 | 0.3 |
| Phenyl siloxane rubber | 8 | UV 119 | 0.6 |
| TMPTMA | 0.5 | Fluorine processing aid | 0.2 |
| Hydrocalumite | 0.4 | PE waxes | 0.4 |
| Antioxidant 245 | 0.8 |
The preparation method of above-mentioned CABLE MATERIALS is same as Example 1.
Performance detection experiment is carried out to the product in embodiment 5, each performance value is as shown in PERFORMANCE EXAMPLES table 7.
Embodiment 6
The each component title and each component parts by weight that embodiment 6 is formulated are as shown in table 6：
Table 6
| Title | Weight/kg | Title | Weight/kg |
| Low density polyethylene (LDPE) | 60 | Anti-oxidant DLTP | 0.6 |
| High density polyethylene (HDPE) | 20 | Antioxidant MD-1024 | 0.3 |
| Polypropylene | 12 | UV 531 | 0.5 |
| Phenyl siloxane rubber | 8 | UV 119 | 0.6 |
| TMPTMA | 0.5 | Fluorine processing aid | 0.3 |
| Hydrocalumite | 0.8 | PE waxes | 0.4 |
| Antioxidant 245 | 0.6 |
The preparation method of above-mentioned CABLE MATERIALS is same as Example 1.
Performance detection experiment is carried out to the product in embodiment 6, each performance value is as shown in PERFORMANCE EXAMPLES table 7.
PERFORMANCE EXAMPLES
Properties of product test is carried out in the following manner：
(1) tensile property is tested：
According to the tensile property of GB/T1040-2008 standard testing used in nuclear power station cross-linking radiation insulating material for communication cables；
(2) electrical property
According to the electrical strength of GB/T 1408-2006 standard testing used in nuclear power station cross-linking radiation insulating material for communication cables.
According to the dielectric constant of GB/T 1409-2006 standard testing used in nuclear power station cross-linking radiation insulating material for communication cables and
Dielectric dissipation factor.
According to the volume resistivity of GB/T 1410-2006 standard testing used in nuclear power station cross-linking radiation insulating material for communication cables.
Thermal life
The thermal life of used in nuclear power station cross-linking radiation insulating material for communication cables is evaluated according to GB/T 1102.1-2003 standards；
Radiation resistance
According to IEC 61244:The chronic exposure of 2014 standard determination used in nuclear power station cross-linking radiation insulating material for communication cables
Ageing properties；
Heat extension
The thermal life of used in nuclear power station cross-linking radiation insulating material for communication cables is evaluated according to GB/T2951.21-2008 standards；
Test result is as shown in table 7.
Table 7：Embodiment properties of product test result
It can be seen from the data in Table 7 that used in nuclear power station cross-linking radiation insulating material for communication cables produced by the present invention, not only machine
Tool performance is good, and dielectric properties are superior, the insulating layer available for the communication cable such as indoor communication and coaxial communication；And cross-linking radiation
Afterwards, 90 degree of requirements of the thermal lifves of 60 years can be reached, radiation-resistant property is good, disclosure satisfy that the third generations such as the imperial No.1 of AP1000, China
The performance requirement of nuclear power station.In addition there is excellent processing performance, disclosure satisfy that the technological requirement of high speed extrusion, application prospect is wide
It is wealthy.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not limited to the substantial technological content model of the present invention
Enclose, substantial technological content of the invention is broadly to be defined in the right of application, any technology that other people complete
Entity or method, if with the right of application defined in it is identical, also or a kind of equivalent change, will
It is considered as being covered by among the right.All references mentioned in the present invention is all incorporated as joining in this application
Examine, as if each reference was individually incorporated by reference.In addition, it should also be understood that, reading the above of the present invention
Afterwards, those skilled in the art can make various modifications or changes to the present invention, and such equivalent forms equally fall within the application institute
Attached claims limited range.
Claims (17)
1. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables, the CABLE MATERIALS include：Low density polyethylene (LDPE), polypropylene,
Phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking coagent, composite antioxidant, Anti-radiation assistant, processing aid etc..Its
In, according to mass parts meter, the CABLE MATERIALS includes following components：
2. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described low close
The finger that melts of degree polyethylene is 0.8~2.2g/10min.
3. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described highly dense
The finger that melts of degree polyethylene is 1~3g/10min.
A kind of 4. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that the phenyl
Silicon rubber is methyl vinyl phenyl silicon rubber, and the phenyl content is 30-50%, molecular weight 8-10 ten thousand.
5. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described poly- third
The finger that melts of alkene is measured for 0.5~2g/10min with GB/T3682-2000 methods.
A kind of 6. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that the stabilization
Agent is zinc stearate, a kind of any two or more mixing that lives in calcium stearate, zinc oxide, hydrocalumite, hydrotalcite.
7. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described compound
Antioxidant is formed by Hinered phenols antioxidant, sulfur-bearing antioxidant and copper resistant agent compounding, the Hinered phenols antioxidant, sulfur-bearing antioxygen
The weight ratio of agent and copper resistant agent is 4：2：1 to 2：2：1.
8. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 7, it is characterised in that described to be obstructed
Phenolic antioxidant is Hinered phenols antioxidant 1010, antioxidant 1098, one or any two or more mixed in antioxygen 245
Close.
A kind of 9. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 7, it is characterised in that the sulfur-bearing
Antioxidant is sulfur-bearing anti-oxidant DLTP, antioxidant 300, antioxidant 1035, one or any two kinds in antioxidant 1081 with
On mixing.
10. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 7, it is characterised in that described anti-
Copper agent is copper resistant agent MD-1024.
11. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described anti-
Compounding of the auxiliary agent for UV absorbers and hindered amine stabilizer is radiated, wherein, the UV absorbers and it is obstructed amine stabilized
The weight ratio of agent is 1:1 to 1:2.
A kind of 12. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 11, it is characterised in that the purple
Outer light absorber is the one or any two or more mixing in UV531, UV326, UV327.
A kind of 13. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 11, it is characterised in that it is described by
It is the one or any two or more mixing in UV770, UV944, UV119, UV622 to hinder amine stabiliser.
14. a kind of used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that described to add
Work auxiliary agent is the compounding of fluorine processing aid and PE waxes, and the weight ratio is 1:1 to 1:2.
A kind of 15. used in nuclear power station cross-linking radiation insulating material for communication cables as claimed in claim 1, it is characterised in that the friendship
Connection auxiliary agent is triallyl hydroxyurea acid esters (TAC), Triallyl isocyanurate (TAIC), trimethacrylate acid trihydroxy methyl third
One or any two or more mixing in alkyl ester (TMPTMA), 1,2- polybutadiene.
A kind of 16. preparation side of any one of claim 1 to 15 claim used in nuclear power station cross-linking radiation insulating material for communication cables
Method, it is characterized in that by low density polyethylene (LDPE), polypropylene, high phenyl siloxane rubber, high density polyethylene (HDPE), stabilizer, crosslinking coagent, multiple
After closing antioxidant, Anti-radiation assistant, processing aid progress dispensing, it is put into low speed mixer, is stirred at room temperature 1-3 minutes,
It is mixed evenly, is then through double-screw extruding pelletizing, screw zones temperature：120~130 DEG C of feeding section, transportation section 145~150
DEG C, 150~170 DEG C of melt zone, 170~190 DEG C of head.
17. a kind of cross-linking radiation cable, it is by any one of claim 1 to 15 claim used in nuclear power station cross-linking radiation communication electricity
Cable Insulation Material is prepared.
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| CN201711378022.1A CN108034115A (en) | 2017-12-19 | 2017-12-19 | A kind of used in nuclear power station cross-linking radiation insulating material for communication cables and preparation method thereof |
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Effective date of registration: 20200927 Address after: Building 5, No. 268, North hengshahe Road, Minhang District, Shanghai, 201109 Applicant after: Shanghai Zhizheng New Material Co., Ltd Address before: 201108 Shanghai city Minhang District Yuanjiang Industrial Zone Xhenzhuang Road No. 5050 Applicant before: SHANGHAI ORIGINALDOW ADVANCED COMPOUNDS Co.,Ltd. |
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Application publication date: 20180515 |