CN110079004A - A kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv and preparation method thereof - Google Patents
A kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv and preparation method thereof Download PDFInfo
- Publication number
- CN110079004A CN110079004A CN201910257043.0A CN201910257043A CN110079004A CN 110079004 A CN110079004 A CN 110079004A CN 201910257043 A CN201910257043 A CN 201910257043A CN 110079004 A CN110079004 A CN 110079004A
- Authority
- CN
- China
- Prior art keywords
- ultra
- clean
- voltage rating
- semiconductive shieldin
- parts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C08L23/0869—Acids or derivatives thereof
-
- 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
-
- 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
- C08K2201/011—Nanostructured additives
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2314/00—Polymer mixtures characterised by way of preparation
- C08L2314/06—Metallocene or single site catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
Abstract
The present invention provides a kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv, comprising: EBA or EEA40-45 parts, 16.5-21.5 parts of Functional Polyolefine, clear clean type spy leads 30-37 parts of carbon black, lubricant is 1.7-3.2 parts, and antioxidant is 0.3-0.5 parts, and crosslinking agent is 1-2 parts.Obtained 220kv semiconductive shieldin material prepared by the present invention is heat-resist, and clean surface has excellent electric conductivity without protrusion.
Description
Technical field
The invention belongs to cross-linked polyethylene insulated cable semi-conductive shielding material fields, and in particular to a kind of voltage rating
Ultra-clean ultra-smooth semiconductive shieldin material of 220kv and preparation method thereof.
Background technique
Currently, the factors such as domestic semiconductive shieldin material by raw material due to being chosen, technique control, process equipment are limited,
It can only meet supply voltage rating in the market demand of 35kv and semiconductive shieldin material below.
The production of domestic 35kv and semiconductive shieldin material below, generally use EVA, the high structural conductive of appropriate melting means
Carbon black, white oil are aided with antioxidant, release agent, crosslinking agent and other auxiliary agents as main raw material(s).Mainly use mixer
As mixed refining process equipment, sent by mixing, extruding pelletization, dehydration, screening, dry wind, height mixes etc., and processing steps preparation is partly led
Electrical shielding material.
In cables manufacturing link, shielding material highest heating temperature in curing tube is 260-280 DEG C, steady for the heat of material
It is qualitative to be one and greatly consider.35kv and following semiconductive shieldin material base-material select EVA, and EVA is at 260 DEG C by thermal weight loss ratio
EBA, EEA are more, and high-temperature stability is not so good as EBA and EEA.
Traditional 35kv and following semiconductive shieldin material select conductive black to be generally domestic furnace black, electric conductivity one
As, containing more impurity, it is not able to satisfy requirement of the semiconductive shieldin material of 220kv or more for electrical property and clean type.
The preparation of traditional semiconductive shieldin material antioxygen-cross-linking system is not able to satisfy the low linear velocity production for a long time of 220kv cable
Requirement.The general semiconductive shieldin material antioxidant single using tradition, and use DCP as crosslinking agent, DCP is more than 120
DEG C can fast decoupled, promote crosslinking, cause shielding material squeeze out safety it is poor.This is electric for needing the 220kv of low speed, long-term production
Be for cable it is extremely unsafe, old glue easily occurs.
Traditional 35kv and following external shield material select the EVA of high VA content, and the combination defective tightness of insulation due to it,
External screen can be removed.And on the cable of the even higher voltage class of alternating voltage 220kv, it is necessary to accomplish to shield and insulate micro-
Close connection in sight, otherwise will seriously affect the service life of cable, and external screen will be accomplished not peelable, otherwise will affect cable
Long-term running safety.
It is produced using mixer, conductive black is difficult to disperse to be completely dispersed uniformly in shielding material, can not accomplish 220kv cable
The requirement of the shielding material ultra-clean ultra-smooth in surface.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv.
In order to achieve the above-mentioned object of the invention, The technical solution adopted by the invention is as follows:
A kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv characterized by comprising EBA or EEA40-45 parts,
16.5-21.5 parts of Functional Polyolefine, clear clean type spy leads 30-37 parts of carbon black, and lubricant is 1.7-3.2 parts, and antioxidant is
0.3-0.5 parts, crosslinking agent is 1-2 parts.
Further, the melting means range of the EEA or EBA is 12-15g/10min, crystal point quantity < 5.
Further, the Functional Polyolefine be metallocene LLDPE perhaps the LDPE metallocene LLDPE or
The melting means range of LDPE is 3-4g/10min, crystal point quantity < 5.
Further, EA content of monomer or BA content of monomer are 18-22% in the EEA or EBA.
Further, the clear clean type spy leads carbon black, and DBP absorption value is 120-160ml/100g, ash content < 0.2%,
Heating loss < 0.2%, 325 screen residue contents are less than 10ppm, sulfur content < 0.2%, moisture content < 200ppm.
Further, the lubricant is silicone master batch, cracks PE wax, ethylene bis stearic acid amide, in oleamide extremely
Few one kind；The silicone master batch is white particulate material, particle size 3*4*3mm, effective component 50%；The cracking PE wax,
Molecular weight is 4500, is melted away from for 105-115；The double hard acid ester amide molecule amounts of the ethylene are 593, and fusing point is 143-146 DEG C；Institute
Stating oleamide molecular weight is 281.48, and fusing point is 72-77 DEG C.
Further, the antioxidant is the compounding mixture of 300#, 1010#, TBHQ；The 300# molecular weight is
358.54, fusing point is 161-164 DEG C, purity > 98%；The 1010# molecular weight is 1177.63, and fusing point is 110-125 DEG C, pure
Spend > 98%；The TBHQ molecular weight is 166.22, and fusing point is 126.5-128.5 DEG C, purity > 98%.
Further, the crosslinking agent is BIBP or double 25 vulcanizing agents；The BIBP molecular weight is 338, melting range
It is 46-52 DEG C, purity > 96%；Double 25 curative molecules amounts are 290.44,8 DEG C of fusing point, pale yellow oily liquid, and purity
> 95%.
A kind of preparation method of the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv, it is characterised in that including as follows
Step:
(1) it feeds intake, EBA or EEA, clean type spy is led into carbon black, lubricant and antioxidant, fed intake according to the feeding port of regulation,
Prevent exogenous impurity entrance；
(2) setting formula, weight-loss metering claims according to formula rate blanking, and by reciprocating engine mixed refining process, reciprocating engine is four pins
Nail type reciprocating engine, draw ratio 17.5:1, drop temperature are 200-220 DEG C；
(3) extruding pelletization, which is using installation 300 mesh *, 4 layers of strong filter technique at single screw rod head, to intercept physics
Impurity, it is ensured that the slickness that cable squeezes out；
(4) it is dehydrated, screens, is dry, final control is in water content < 200ppm；
(5) wind is sent into high mixer, and control feeding temperature is 40-42 DEG C, crosslinking agent is added, mixed at high speed to particle temperature is extremely
53-55 DEG C, fully absorb crosslinking agent；
(6) particle after high mix is added air blast vibrating screen, carries out powder Screening Treatment, after removing high mix by dust Screening Treatment
Powder.The above process recycles 3 times, to reach optimal dust elimination effect.
The beneficial effects of the present invention are: using EBA or EEA as base-material, improve the heat of system heat resistance and base-material
Decomposition temperature lower limit.EBA and EEA processing performance is good.330 degree of EBA thermal decomposition temperature, 350 degree of EEA thermal decomposition temperature, the two point
Solution temperature is all much higher than 240 degree of EVA；The two, which squeezes out processing temperature, may be up to 300 degree, higher than 220 degree of EVA.Cables manufacturing
It can select EBA or EEA that can maximize by up to 270 DEG C of curing tube in the process and reduce being thermally decomposed for base-material, extend
The service life of high-tension cable.Melting means range then ensure that the basic flowing of system, it is only necessary to add in 12-15g/10min
A small amount of lubricant can meet the extrusion requirement of shielding material, and it is remaining to reduce high-tension cable curing tube during the manufacturing
The generation of object reduces curing tube blowdown number.
Matrix resin crystal point quantity seldom then guarantees manufactured cable ultra-smooth, and outer screen surfaces do not have size to be greater than 75 μm
Protrusion.
Using clean type carbon black, guarantee system electric conductivity and spatter property.Maximum impurity source is exactly carbon black in shielding material.
High oil absorption value ensure that the electric conductivity of system is excellent, and the ash content of low content and 325 screen residues then ensure that the cleaning of carbon black
Type, low sulfur content can reduce interior external screen to conductor with and cable copper strip discoloration influence.Further ensure 220kv shielding material
Whole is clean.
Using the Functional Polyolefine of particular range melting means, the mobility of regulation system adjusts the polarity of formula system, mentions
Height shielding with insulation caking property, be truly realized external screen and insulation it is not peelable, interior screen with insulate combine closely.Pass through one
The Functional Polyolefine of the EEA or the melting means in EBA, with particular range that determine the melting means in range can be realized optimal technology effect
Fruit, if the melting means of EEA or EBA not in the range of 12-15g/10min, by the result of embodiment it is found that invention can not achieve
Specific technical effect.
Using compound antioxidant, additive amount is improved, the double 25 or BIBP of the higher crosslinking agent of decomposition temperature is selected, both guarantees body
There is certain degree of cross linking in system, and the system degree of cross linking of avoiding is too high, improves the extrusion safety of system, maximizes and reduces high-tension cable
The appearance of long-term production extrusion " old glue " situation.
It is produced using reciprocating extruding pelletization process equipment, according to formula automatic gauge material, reduces human factor and make
At formula misalignment.Meanwhile reciprocating engine production can accomplish being completely dispersed for carbon black, shielding material, which is made, can achieve ultra-clean ultraphotic
Sliding requirement.Reciprocating engine draw ratio used is 17.5:1, which can guarantee that the carbon black in formula is fully dispersed.
Using 300 mesh *, 4 layers of strong filter technique, the entrance for reducing physical impurity is maximized.Maximize the cleaning of promotion system
Degree.
One of dust Screening Treatment technique is finally added in production process, is recycled 3 times, by experimental calculation, it is possible to reduce
99% powder after height is mixed.Contain a large amount of crosslinking agent in these powder, easily causes to squeeze out old glue feelings in cable making process
The appearance of condition.A possibility that old glue when the production of 220kv high-tension cable can be prevented by adding the road technique then improves cable production
Extrusion safety.
It is heat-resist that the ultra-clean ultra-smooth semiconductive shieldin material of 220kv is made, be heated decomposition of little in cables manufacturing.
20 DEG C of volume resistivities of product are 20 Ω cm or so, lower than 35kv and conventional shielding material product below.
Product after testing, tests the sample of total surface area 1m2, surface protuberances height 50-75 μm of quantity≤5,
Quantity greater than 75 μm is 0.
Detailed description of the invention
Fig. 1 is the optical scanning device schematic diagram with high-resolution camera.
Specific embodiment
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate this hair
It is bright, rather than limit the scope of the invention.Under the premise of without departing substantially from technical solution of the invention, the present invention is made
Those of ordinary skill in the art's any change easy to accomplish fall within scope of the presently claimed invention.
Embodiment 1
45 parts of EBA, B28N230 (melt index 14g/min), 18 parts of metallocene LLDPE, VXC72#15 parts, Czech's Type B carbon black
19 parts of (clean type carbon black), silicone master batch be 0.4 part, cracking PE wax be 0.7 part, 0.8 part of ethylene bis stearamide, oleamide
0.5 part, antioxidant 300 # is 0.3 part, and antioxidant 1010 # is 0.2 part, and antioxidant TBHQ is 0.1 part.Crosslinking agent uses BIBP,
Additive amount is 1-1.2 parts
Using matrix resin be EBA, B28N230, melting means 14g/10min, crystal point quantity (100 μm of >, a/1200cm2)
< 3.Its BA content of monomer is 18%.
The metallocene LLDPE, melting means 3.2g/10min, and crystal point quantity (100 μm of >, a/1200cm2) < 3.
The VXC72 carbon black, DBP absorption value are 130ml/100g, ash content 0.15%, heating loss 0.13%, 325 meshes
Residue content is 5ppm, sulfur content 0.1%, moisture content 153ppm.
Czech's Type B carbon black, DBP absorption value are 153ml/100g, ash content 0.1%, heating loss 0.1%, 325 meshes
Residue content is 7ppm, sulfur content 0.1%, moisture content 140ppm.
Embodiment 2
42 parts of EBA, E1770 (melt index 12g/min), 2102,20 parts of LDPE, VXC72#20 parts, Czech's Type B carbon black 14
Part, cracking PE wax be 2 parts, 0.6 part of oleamide, 0.9 part of ethylene bis stearamide, #0.4 parts of antioxidant 300, antioxidant
1010# is 0.1 part.For crosslinking agent using double 25, additive amount is 1-1.2 parts.
Using matrix resin be EBA, E1770, melting means 14g/10min, crystal point quantity (100 μm of >, it is a/
1200cm2) < 3.Its BA content of monomer is 20%.
The LDPE2102, melting means 3.5g/10min, and crystal point quantity (100 μm of >, a/1200cm2) < 3.
Comparative example 1
It is same as Example 1, in addition to using thiobisphenol kind antioxidant to replace compounding antioxidant system (antioxidant 300 #, antioxygen
Agent 1010, antioxidant TBHQ).
Comparative example 2
It is same as Example 1, in addition to antioxidant 300 # is used alone.
Comparative example 3
It is same as Example 1, in addition to antioxidant 1010 is used alone.
Comparative example 4
It is same as Example 1, in addition to antioxidant TBHQ is used alone.
Comparative example 5
Same as Example 1, in addition to not adding metallocene LLDPE, EBA additional amount is 63 parts.
Comparative example 6
It is same as Example 1, in addition to use superconduction carbon black (DPB absorption value be 310ml/100g, initial size 40nm, always from
Sub- content < 60ppm, moisture≤100ppm) replace carbon black of the invention.
Comparative example 7
It is same as Example 1, in addition to using VXC72#34 parts, do not use Czech's Type B carbon black.
Comparative example 8
It is same as Example 1, in addition to using 34 parts of Czech's Type B carbon black, do not use VXC72#.
Comparative example 9
It is same as Example 1, in addition to using EBA(melt index 10g/min).
The material of embodiment and comparative example is tested.
Product smooth degree is detected by the laser scanner that German OCS company produces, and principle is by 220kv semi-conductive screen
Material squeezes out belt flake, and in continuous extrusion process, scanner issues light wave and emits its surface, if encountering protrusion
Point, light wave return, which calculates its height, size automatically.
It is surface bulge object size and quantity test method below
This test method is suitable for 220kv cable semiconductive shieldin material surface protuberances size and quantity is tested.Test method
It is the test carried out under the optical scanning device with high-resolution camera, scanning speed, the minimum altitude of equipment scanning, by height
Camera scanning sample belt surface is differentiated, equipment principle is shown in Fig. 1.
Test method
1. test should carry out in the standard state that (23 ± 2) DEG C and relative humidity are (50 ± 5) %, equipment is waited in standard state
Regulating time should be no less than 6h.
2. adjusting each warm area temperature of extruder, so that extruded material reaches the state being well plasticized and can be tested, adjust
Whole sample tape thickness to optimum measurement thickness, equipment detection sensitivity should be not less than 85%.
3. thickness of sample to be extruded can start to test after stablizing, test sample total surface area is 1m2.
4. test result is handled
Surface protuberances size and quantity characterization result are to test total surface area 1m2Sample, recording surface bump height exists
50-75 μm and the quantity greater than 75 μm.
Table 1
From the data in table 1, it can be seen that embodiment 1,2 mechanical performance of embodiment are excellent, ageing-resistant performance is excellent, has suitable heat to prolong
It stretches, illustrates that its degree of cross linking is abundant but it is excessively high to be unlikely to the degree of cross linking.Volume resistivity is lower, illustrates embodiment 1,2 electric conductivities
Well.Surface bulge object quantity is 0, illustrates that carbon black has been accomplished to be completely dispersed in system.It is not peelable to illustrate that embodiment 1,2 is selected yet
Base-material type and ratio are relatively reasonable, and carbon black dispersion is good, have good caking property with insulation.
Table 2
Comparative example 1,2,3,4 is learnt by table 2, learns and selects single antioxidant, the hot extension data of product is fabulous, the system degree of cross linking
Degree is excessively high, although tensile strength is promoted, elongation at break decline, and also product is not ageing-resistant.The excessively high degree of cross linking
The electrical property of product is even affected, this is because system crosslinking is spent, destroys conductive channel to a certain extent.
Above-mentioned data demonstrate the reasonability for selecting compound antioxidant.
And EBA is only used only in comparative example 5, intensity decreased significantly, and elongation slightly rises.Ageing-resistant performance is general.But
It is that product and insulation are peelable, illustrates that comparative example 5 and insulation adhesive are bad.
Table 3
As shown in Table 3, comparative example 6,7,8 uses single variety carbon black, it is difficult to disperse, products machinery performance is bad, volume resistance
Obviously bigger than embodiment 1,2, since carbon black dispension degree is bad, product has more surface bulge object, and and insulation adhesive
Property is bad, peelable.
The EBA unreasonable using melting means range of comparative example 9, intensity are declined, and volume resistivity is also larger, product surface
There is a small amount of protrusion, product is still peelable with insulation.
In conclusion embodiment 1,2 fully meets the requirement of the ultra-clean ultra-smooth semiconductive shieldin material of 220kv.
Claims (9)
1. a kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv characterized by comprising EBA or EEA40-45
Part, 16.5-21.5 parts of Functional Polyolefine, clear clean type spy leads 30-37 parts of carbon black, and lubricant is 1.7-3.2 parts, and antioxidant is
0.3-0.5 parts, crosslinking agent is 1-2 parts.
2. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
The melting means range of EEA or EBA is 12-15g/10min, crystal point quantity < 5.
3. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
Functional Polyolefine is that the melting means range of the metallocene LLDPE perhaps LDPE metallocene LLDPE or LDPE is 3-4g/
10min, crystal point quantity < 5.
4. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
EA content of monomer or BA content of monomer are 18-22% in EEA or EBA.
5. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
Clear clean type spy leads carbon black, and DBP absorption value is 120-160ml/100g, ash content < 0.2%, heating loss < 0.2%, 325 mesh
Sieve residue content is less than 10ppm, sulfur content < 0.2%, moisture content < 200ppm.
6. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
Lubricant is silicone master batch, cracks PE wax, ethylene bis stearic acid amide, at least one of oleamide；The silicone master batch is
White particulate material, particle size 3*4*3mm, effective component 50%；The cracking PE wax, molecular weight 4500, melt away from for
105-115；The double hard acid ester amide molecule amounts of the ethylene are 593, and fusing point is 143-146 DEG C；The oleamide molecular weight is
281.48, fusing point is 72-77 DEG C.
7. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
Antioxidant is the compounding mixture of 300#, 1010#, TBHQ；The 300# molecular weight is 358.54, and fusing point is 161-164 DEG C, pure
Spend > 98%；The 1010# molecular weight is 1177.63, and fusing point is 110-125 DEG C, purity > 98%；The TBHQ molecular weight is
166.22, fusing point is 126.5-128.5 DEG C, purity > 98%.
8. the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv according to claim 1, it is characterised in that: described
Crosslinking agent is BIBP or double 25 vulcanizing agents；The BIBP molecular weight is 338, and melting range is 46-52 DEG C, purity > 96%；Institute
Stating double 25 curative molecules amounts is 290.44,8 DEG C of fusing point, pale yellow oily liquid, and purity > 95%.
9. a kind of preparation method of the ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv, it is characterised in that including walking as follows
It is rapid:
(1) it feeds intake, EBA or EEA, clean type spy is led into carbon black, lubricant and antioxidant, fed intake according to the feeding port of regulation,
Prevent exogenous impurity entrance；
(2) setting formula, weight-loss metering claims according to formula rate blanking, and by reciprocating engine mixed refining process, reciprocating engine is four pins
Nail type reciprocating engine, draw ratio 17.5:1, drop temperature are 200-220 DEG C；
(3) extruding pelletization, which is using installation 300 mesh *, 4 layers of strong filter technique at single screw rod head, to intercept physics
Impurity, it is ensured that the slickness that cable squeezes out；
(4) it is dehydrated, screens, is dry, final control is in water content < 200ppm；
(5) wind is sent into high mixer, and control feeding temperature is 40-42 DEG C, crosslinking agent is added, mixed at high speed to particle temperature is extremely
53-55 DEG C, fully absorb crosslinking agent；
(6) particle after high mix is added air blast vibrating screen, carries out powder Screening Treatment, after removing high mix by dust Screening Treatment
Powder；Dust Screening Treatment process recycles 3 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257043.0A CN110079004B (en) | 2019-04-01 | 2019-04-01 | 220kv rated voltage ultra-clean ultra-smooth semi-conductive shielding material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257043.0A CN110079004B (en) | 2019-04-01 | 2019-04-01 | 220kv rated voltage ultra-clean ultra-smooth semi-conductive shielding material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110079004A true CN110079004A (en) | 2019-08-02 |
| CN110079004B CN110079004B (en) | 2021-11-23 |
Family
ID=67413929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257043.0A Active CN110079004B (en) | 2019-04-01 | 2019-04-01 | 220kv rated voltage ultra-clean ultra-smooth semi-conductive shielding material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110079004B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754947A (en) * | 2021-09-13 | 2021-12-07 | 南方电网科学研究院有限责任公司 | Method for preparing high-voltage cable semiconductive shielding material based on high-graphitization-degree conductive carbon black |
| CN113943454A (en) * | 2021-09-16 | 2022-01-18 | 江苏上上电缆集团新材料有限公司 | Graphene and carbon nanotube synergistic high-electrical-property semiconductive shielding material and preparation method thereof |
| CN114015148A (en) * | 2021-11-18 | 2022-02-08 | 南方电网科学研究院有限责任公司 | Method for preparing high-voltage cable semiconductive shielding material by using low-impurity conductive carbon black |
| CN114656713A (en) * | 2021-12-29 | 2022-06-24 | 高邮市金国电缆材料厂有限公司 | High-conductivity polyolefin sheath material and preparation method thereof |
| WO2023065429A1 (en) * | 2021-10-18 | 2023-04-27 | 南方电网科学研究院有限责任公司 | Method for preparing semi-conductive shielding material used for high-voltage cable from low-impurity conductive carbon black |
| WO2023065430A1 (en) * | 2021-10-18 | 2023-04-27 | 深圳供电局有限公司 | High-voltage cable semi-conductive shielding material featuring high-efficiency dispersion of conductive carbon black and preparation method therefor |
| WO2024045419A1 (en) * | 2022-08-30 | 2024-03-07 | 南方电网科学研究院有限责任公司 | Semi-conductive shielding material based on compound resin, preparation method therefor and use thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038042A (en) * | 1975-12-18 | 1977-07-26 | E. I. Du Pont De Nemours And Company | Electroplating of polypropylene compositions |
| CN103756613A (en) * | 2013-12-27 | 2014-04-30 | 吴媛媛 | Cementing material for colored pavement and preparation method thereof |
| CN105001360A (en) * | 2014-04-15 | 2015-10-28 | 中国石化扬子石油化工有限公司 | Ethylene-alpha-olefin copolymer, manufacturing method and applications thereof |
| CN107488295A (en) * | 2017-08-10 | 2017-12-19 | 全球能源互联网研究院 | A kind of 500kV and following direct current cables shielding material and preparation method thereof |
| CN107573574A (en) * | 2017-09-07 | 2018-01-12 | 南京南瑞集团公司 | ± 525kV and following direct current cables shielding material and preparation method thereof |
-
2019
- 2019-04-01 CN CN201910257043.0A patent/CN110079004B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4038042A (en) * | 1975-12-18 | 1977-07-26 | E. I. Du Pont De Nemours And Company | Electroplating of polypropylene compositions |
| CN103756613A (en) * | 2013-12-27 | 2014-04-30 | 吴媛媛 | Cementing material for colored pavement and preparation method thereof |
| CN105001360A (en) * | 2014-04-15 | 2015-10-28 | 中国石化扬子石油化工有限公司 | Ethylene-alpha-olefin copolymer, manufacturing method and applications thereof |
| CN107488295A (en) * | 2017-08-10 | 2017-12-19 | 全球能源互联网研究院 | A kind of 500kV and following direct current cables shielding material and preparation method thereof |
| CN107573574A (en) * | 2017-09-07 | 2018-01-12 | 南京南瑞集团公司 | ± 525kV and following direct current cables shielding material and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| CHARLES A.HARPER: "《现代塑料手册》", 31 March 2003, 中国石化出版社 * |
| FELLER J F ET AL.: "Mechanical and rheological properties of poly (ethylene-co-ethyl acrylate) as a function of carbon black content", 《MACROMOLECULAR SYMPOSIA. WEINHEIM: WILEY‐VCH VERLAG》 * |
| 安博: "半导电屏蔽材料改性对XLPE绝缘内空间电荷分布的影响", 《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113754947A (en) * | 2021-09-13 | 2021-12-07 | 南方电网科学研究院有限责任公司 | Method for preparing high-voltage cable semiconductive shielding material based on high-graphitization-degree conductive carbon black |
| WO2023035369A1 (en) * | 2021-09-13 | 2023-03-16 | 南方电网科学研究院有限责任公司 | Method for preparing semi-conductive shielding material of high-voltage cable on basis of conductive carbon black having high graphitization degree |
| CN113943454A (en) * | 2021-09-16 | 2022-01-18 | 江苏上上电缆集团新材料有限公司 | Graphene and carbon nanotube synergistic high-electrical-property semiconductive shielding material and preparation method thereof |
| WO2023065429A1 (en) * | 2021-10-18 | 2023-04-27 | 南方电网科学研究院有限责任公司 | Method for preparing semi-conductive shielding material used for high-voltage cable from low-impurity conductive carbon black |
| WO2023065430A1 (en) * | 2021-10-18 | 2023-04-27 | 深圳供电局有限公司 | High-voltage cable semi-conductive shielding material featuring high-efficiency dispersion of conductive carbon black and preparation method therefor |
| CN114015148A (en) * | 2021-11-18 | 2022-02-08 | 南方电网科学研究院有限责任公司 | Method for preparing high-voltage cable semiconductive shielding material by using low-impurity conductive carbon black |
| CN114656713A (en) * | 2021-12-29 | 2022-06-24 | 高邮市金国电缆材料厂有限公司 | High-conductivity polyolefin sheath material and preparation method thereof |
| WO2024045419A1 (en) * | 2022-08-30 | 2024-03-07 | 南方电网科学研究院有限责任公司 | Semi-conductive shielding material based on compound resin, preparation method therefor and use thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110079004B (en) | 2021-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110079004A (en) | A kind of ultra-clean ultra-smooth semiconductive shieldin material of voltage rating 220kv and preparation method thereof | |
| EP1240256B1 (en) | Carbon blacks useful in wire and cable compounds | |
| CN109627601A (en) | A kind of PP composite material and preparation method thereof | |
| CN105131419B (en) | A kind of high voltage direct current cable semiconductive shieldin material and preparation method thereof | |
| CN113956565A (en) | Ultra-smooth high-voltage cable semi-conductive shielding material based on high-structure conductive carbon black and preparation method thereof | |
| CN113943454A (en) | Graphene and carbon nanotube synergistic high-electrical-property semiconductive shielding material and preparation method thereof | |
| CN107488295A (en) | A kind of 500kV and following direct current cables shielding material and preparation method thereof | |
| CN112724500B (en) | Semiconductive shielding material and preparation method and application thereof | |
| CN107573598A (en) | High-voltage direct-current cable accessory insulation matching method for improving based on mixed nanometer | |
| WO2021114753A1 (en) | Silane cross-linked polyethylene insulation material having high carbon black content and good tracking resistance, and preparation method therefor | |
| CN113881133A (en) | High-voltage cable semiconductive shielding material with conductive carbon black efficiently dispersed and preparation method thereof | |
| CN108794897A (en) | A kind of polypropylene-base high-voltage cable insulating layer material and preparation method thereof | |
| CN109777027B (en) | Halogen-free flame-retardant conductive elastomer for data line electromagnetic shielding and preparation method thereof | |
| CN106332336A (en) | PTC material self-temperature limiting electric heat tracing band processing technology | |
| CN112194855A (en) | Waterproof oil-resistant rubber cable material | |
| CN107573574A (en) | ± 525kV and following direct current cables shielding material and preparation method thereof | |
| CN115322472B (en) | Semiconductive shielding material based on compound resin and preparation method and application thereof | |
| CN109705478A (en) | Generation Ⅲ nuclear power station rubber cable semiconductive conductor shielding material | |
| CN103524963B (en) | Formula of semiconductive internal shielding material for scorch preventing cable | |
| CN115850900A (en) | Thermoplastic environment-friendly low-temperature-resistant polypropylene semiconductive shielding material with rated voltage of 220kV and preparation method thereof | |
| CN108395610A (en) | A kind of carbon nanotube shield semiconductors material and preparation method thereof | |
| CN111234362A (en) | Superconducting high-temperature-resistant high-flame-retardant semiconductive sheath material and preparation method and application thereof | |
| CN111825981A (en) | Radiation-resistant nuclear-grade thermoplastic low-smoke halogen-free flame-retardant cable sheath material and preparation method thereof | |
| WO2023065430A1 (en) | High-voltage cable semi-conductive shielding material featuring high-efficiency dispersion of conductive carbon black and preparation method therefor | |
| CN109370027A (en) | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |