CN109111619A - A kind of novel environment-friendly semi-conductive shielding material and preparation method thereof - Google Patents
A kind of novel environment-friendly semi-conductive shielding material and preparation method thereof Download PDFInfo
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- CN109111619A CN109111619A CN201810738227.4A CN201810738227A CN109111619A CN 109111619 A CN109111619 A CN 109111619A CN 201810738227 A CN201810738227 A CN 201810738227A CN 109111619 A CN109111619 A CN 109111619A
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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
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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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
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/04—Thermoplastic elastomer
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Abstract
The invention discloses a kind of novel environment-friendly semi-conductive shielding material and preparation method thereof, semi-conductive shielding material, composition of raw materials includes the component of following parts by weight: 10-30 parts of polypropylene；5-20 parts of thermoplastic elastomer (TPE)；40-100 parts of metallocene PE；20-40 parts of conductive black；0.1-2 parts of antioxidant；1-10 parts of lubricant；0.1-2 parts of water tree inhibitor；5-10 parts of white oil；5-10 parts of nano mica powder.Semi-conductive shielding material of the present invention, volume resistivity is low, conducts electricity very well, long service life, soft, does not crack, and temperature tolerance is strong, material environmental protection, recoverable；Preparation method is used and is carried out step by step, further ensures the uniformity, flexibility, temperature tolerance of material.
Description
Technical field
The present invention relates to a kind of novel environment-friendly semi-conductive shielding materials and preparation method thereof, this shielding material is suitable for
10-220kV high-tension cable belongs to semi-conductive shielding material field.
Background technique
It is got over the rapid development of our country's economy with the raising to electric power energy demand amount, the usage amount of high voltage power cable
Come bigger, and constantly develops to high pressure, super-pressure, large capacity and environmentally friendly direction.Current domestic 35kV and following semiconductive screen
Material is covered to domesticize completely, and 110-220kV super-pressure semiconductive shieldin material relies on import substantially.
Domestic existing power cable all used with semiconductive shieldin material with EVA (ethylene-vinyl acetate copolymer) or
PE (polyethylene) is base-material, is conductive grafting with conductive black, and adds crosslinking agent and other auxiliary agents are made.Due to EVA or PE
Resin temperature resistant grade is low, is not able to satisfy requirement of the power cable to temperature-resistance characteristic, need to add crosslinking agent make plastics crosslinking variation be
Thermosetting property improves its temperature resistant grade.
The shortcomings that semi-conductive shielding material for high-tension cable of above-mentioned addition crosslinking agent, is as follows: after addition crosslinking agent,
Its molecular structure becomes reticular structure, and intensive reticular structure can hinder the interparticle connection of conductive black, reduces conductive mesh
The formation of network, causes volume resistivity to increase, and influences the electric field homo-effect to cable product；Become heat after EVA or PE crosslinking
Thermoset material can not recycle, be unfavorable for environmental protection.
Summary of the invention
The present invention provides a kind of novel environment-friendly semi-conductive shielding material and its system suitable for 10-220kV high-tension cable
Preparation Method, resulting materials of the present invention should have that non-crosslinked, temperature resistant grade is high, and volume resistivity is low, pollution-free, and it is recyclable again
The features such as utilization.
In order to solve the above technical problems, the technical solution adopted in the present invention is as follows:
A kind of novel environment-friendly semi-conductive shielding material, composition of raw materials include the component of following parts by weight:
Above-mentioned selection acrylic resin is situated between as base-material, using nano mica powder and conductive black collectively as conduction
Matter further decreases volume resistivity, improves the electric conductivity of shielding material；In order to avoid water tree bring detrimental consequences,
The additive of a small amount of " water tree inhibitor " is added in semi-conductive screen layer material, water tree inhibitor can be avoided the growth of water tree
With promote dielectric strength holding, to improve the service life of cable；White oil is absorbed using thermoplastic elastomer (TPE), for improving
The partially hard situation of material prevents from cracking so that cable is more soft after addition polypropylene；Preparation method is used and is carried out step by step,
Further ensure the uniformity, flexibility, low-resistivity of material；Collaboration promotes effect obvious between each material component, product
Temperature tolerance, ageing-resistant line performance boost are significant, and resulting materials recoverable.
In order to further increase the temperature tolerance and weatherability of semi-conductive screen material, thermoplastic elastomer (TPE) is propylene and ethylene
Copolymer.
Further preferably, polypropylene be polypropylene pp575, applicant it has been investigated that, poly- the third of the application specific model
Alkene can preferably promote the synergistic effect of each component, the uniformity of material and flexibility can be made to further increase, and resistivity is into one
Step reduces.
In order to further promote the collaboration between each component to promote effect, improves the service performance of product, extends product
Service life, water tree inhibitor be polyethylene glycol, amide-containing fatty acid ester, ethoxylation fatty acid or propenoxylated rouge
At least one of fat acid.
Antioxidant is preferably amine antioxidants, further preferably antioxidant 445, applicant it has been investigated that, this is specific
The antioxidant of type is by cooperateing with promotion with other components, so that the temperature tolerance of material and resistance to ag(e)ing promote highly significant.
Further preferably, lubricant is fluoride 3524；Nano mica powder partial size is 4000 mesh
Novel environment-friendly semi-conductive screen material as a kind of preferred embodiment of the application, for 10-220kV high-tension cable
Material, composition of raw materials includes the component of following parts by weight:
Novel environment-friendly semi-conductive screen as another preferred embodiment of the application, for 10-220kV high-tension cable
Material, composition of raw materials include the component of following parts by weight:
As another preferred embodiment of the application, composition of raw materials includes the component of following parts by weight:
Applicant it has been investigated that, preferred embodiment in above-mentioned 3 can make system between each component that effect be promoted to perform to most
It is good.
The preparation method of above-mentioned semi-conductive shielding material, including the following steps being connected in order:
1) by thermoplastic elastomer (TPE) and white oil under conditions of temperature is 90 ± 5 DEG C, stirring rate is 60 ± 3r/min,
Stirrer for mixing 10-15min, until thermoplastic elastomer (TPE) all absorbs white oil；
2) it is produced using reciprocating engine, the resulting material of step 1), polypropylene and metallocene PE is added by Weightlessness balance
Enter reciprocal owner's feeding；Reciprocal pusher side position material is added in nano mica powder and conductive black；
3) it by antioxidant, lubricant and water tree inhibitor mixed, is injected in reciprocating engine screw rod by filling gun, continues to mix
Refining；
4) it will be squeezed out in the injection single screw extrusion machine of mixture obtained by step 3), which be made by underwater cutpellet
Cover the particle of material.
In order to further increase the comprehensive performance of products obtained therefrom, it is preferable that step 2) and step 3) reciprocating engine temperature of each section according to
It is secondary are as follows: 150-160 DEG C of feeding section, 160-180 DEG C of batch mixing segment, 160-180 DEG C of extruding zone.9, single screw extrusion machine temperature are as follows: machine
150 ± 5 DEG C of body, 155 ± 5 DEG C of head.
Further preferably, in step 1), incorporation time 10min, 15min or 20min；Reciprocating engine in step 2) and step 3)
Temperature of each section is successively are as follows: 160 DEG C of feeding section, 170 DEG C of batch mixing segment, 170 DEG C of extruding zone or 150 DEG C of feeding section, batch mixing segment 160
DEG C, 160 DEG C of extruding zone or 160 DEG C of feeding section, 180 DEG C of batch mixing segment, 160 DEG C of extruding zone.
The unmentioned technology of the present invention is referring to the prior art.
Compared with the prior art, the advantages of the present invention are as follows: the present invention selects acrylic resin as base-material, using nanometer
Grade mica powder and conductive black further decrease volume resistivity collectively as conducting medium, improve the electric conductivity of shielding material
Energy；In order to avoid water tree bring detrimental consequences, adding for a small amount of " water tree inhibitor " is added in semi-conductive screen layer material
Add agent, water tree inhibitor can be avoided the growth of water tree and promote the holding of dielectric strength, to improve the service life of cable；
White oil is absorbed using thermoplastic elastomer (TPE), for improving the partially hard situation of material after addition polypropylene, so that cable is more soft,
It prevents from cracking；Promoted by the collaboration of each material, temperature tolerance and resistance to ag(e)ing is made to promote highly significant, and the recyclable benefit of material
With, it is environment friendly and pollution-free；Preparation method is used and is carried out step by step, further ensures the uniformity, flexibility, low resistance of material
Rate.
Specific embodiment
For a better understanding of the present invention, below with reference to the embodiment content that the present invention is furture elucidated, but it is of the invention
Content is not limited solely to the following examples.
Embodiment 1
Environment-friendly type semi-conductive shielding material, composition of raw materials include following parts by weight
Component:
The preparation method of this shielding material, comprising the following steps:
1) it is spare that various materials accurately scale material: are weighed according to formula；
2) it is kneaded:
2.1) first by thermoplastic elastomer (TPE) and white oil in stirrer for mixing, incorporation time 10min, temperature control is 90
DEG C, stirring rate 60r/min, so that elastomer all absorbs white oil；
2.2) it is produced using reciprocating engine, after the absorption white oil that polypropylene, metallocene PE and step 2.1) are obtained
Thermoplastic elastomer (TPE) reciprocal owner's feeding is added by Weightlessness balance；Side position material is proportionally added into nano mica powder and conductive charcoal
It is black；
2.3) it by antioxidant lubricant and water tree inhibitor mixed, is injected in reciprocating engine screw rod by filling gun, continues to mix
Refining；
2.4) it will be squeezed out in the injection single screw extrusion machine of mixture obtained by step 2.3), this be made by underwater cutpellet and is partly led
The particle of electrical shielding material；
Rank temperature on above-mentioned reciprocating engine are as follows: 150 DEG C of feeding section, 160 DEG C of batch mixing segment, 160 DEG C of extruding zone；Lower rank single screw rod temperature
Degree are as follows: 150 DEG C of fuselage, 155 DEG C of head.
Embodiment 2
Environment-friendly type semi-conductive shielding material, composition of raw materials include following parts by weight
Component:
The preparation method of this shielding material, it is substantially the same manner as Example 1, except that: in step 2.1), incorporation time
15min；It answers a pager's call upper rank temperature are as follows: 160 DEG C of feeding section, 170 DEG C of batch mixing segment, 170 DEG C of extruding zone.
Embodiment 3
Environment-friendly type semi-conductive shielding material, composition of raw materials include following parts by weight
Component:
The preparation method of this shielding material, it is substantially the same manner as Example 1, except that: in step 2.1), incorporation time
20min；It answers a pager's call upper rank temperature are as follows: 160 DEG C of feeding section, 180 DEG C of batch mixing segment, 160 DEG C of extruding zone
Comparative example 1
This example provides a kind of semiconductive insulation shield material, calculates in parts by weight, its composition of raw materials is as follows:
Above-mentioned semiconductive insulation shield material the preparation method comprises the following steps:
1) by the ethylene-vinyl acetate copolymer of formula ratio (EVA), conductive black, antioxidant, lubricant and dispersing agent
It is added in extruder and carries out extruding pelletization, premix is made；
2) it by the crosslinking agent of premix obtained by step 1) and formula ratio in a reservoir in 70 DEG C, mixes 5-15 minutes.
Each embodiment and comparative example are made shielding material performance detection and are shown in Table one:
Claims (10)
1. a kind of novel environment-friendly semi-conductive shielding material, it is characterised in that: its composition of raw materials includes the group of following parts by weight
Point:
2. semi-conductive shielding material as described in claim 1, it is characterised in that: thermoplastic elastomer (TPE) is being total to for propylene and ethylene
Polymers.
3. semi-conductive shielding material as claimed in claim 1 or 2, it is characterised in that: polypropylene is polypropylene pp575.
4. semi-conductive shielding material as claimed in claim 1 or 2, it is characterised in that: water tree inhibitor is polyethylene glycol, contains acyl
At least one of amido fatty acid ester, the fatty acid of ethoxylation or propenoxylated fatty acid；Antioxidant is amine antioxygen
Agent.
5. semi-conductive shielding material as claimed in claim 1 or 2, it is characterised in that: antioxidant is antioxidant 445；Lubricant
For fluoride 3524；Nano mica powder partial size is 4000 mesh.
6. semi-conductive shielding material as claimed in claim 1 or 2, it is characterised in that: its composition of raw materials includes following parts by weight
Several components:
Alternatively, its composition of raw materials includes the component of following parts by weight:
Alternatively, its composition of raw materials includes the component of following parts by weight:
7. the preparation method of semi-conductive shielding material as claimed in any one of claims 1 to 6, it is characterised in that: including sequence phase
The following steps connect:
1) thermoplastic elastomer (TPE) and white oil are being stirred under conditions of temperature is 90 ± 5 DEG C, stirring rate is 60 ± 3r/min
10-15min is mixed in machine, until thermoplastic elastomer (TPE) all absorbs white oil；
2) it is produced, the resulting material of step 1), polypropylene and metallocene PE is added by Weightlessness balance past using reciprocating engine
It answers a pager's call main feeding；Reciprocal pusher side position material is added in nano mica powder and conductive black；
3) it by antioxidant, lubricant and water tree inhibitor mixed, is injected in reciprocating engine screw rod by filling gun, continues to be kneaded；
4) it will be squeezed out in the injection single screw extrusion machine of mixture obtained by step 3), which be made by underwater cutpellet
The particle of material.
8. preparation method as claimed in claim 7, it is characterised in that: step 2) and step 3) reciprocating engine temperature of each section are successively
Are as follows: 150-160 DEG C of feeding section, 160-180 DEG C of batch mixing segment, 160-180 DEG C of extruding zone；Single screw extrusion machine temperature are as follows: fuselage 150
± 5 DEG C, 155 ± 5 DEG C of head.
9. preparation method as claimed in claim 8, it is characterised in that: reciprocating engine temperature of each section is successively in step 2) and step 3)
Are as follows: 150 DEG C of 160 DEG C of feeding section, 170 DEG C of batch mixing segment, 170 DEG C of extruding zone or feeding section, 160 DEG C of batch mixing segment, extruding zone 160
DEG C or 160 DEG C of feeding section, 180 DEG C of batch mixing segment, 160 DEG C of extruding zone.
10. preparation method as claimed in claim 7 or 8, it is characterised in that: in step 1), incorporation time 10min, 15min or
20min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810738227.4A CN109111619A (en) | 2018-07-06 | 2018-07-06 | A kind of novel environment-friendly semi-conductive shielding material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810738227.4A CN109111619A (en) | 2018-07-06 | 2018-07-06 | A kind of novel environment-friendly semi-conductive shielding material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112538210A (en) * | 2020-12-11 | 2021-03-23 | 苏州通优新材料科技有限公司 | Deformation-resistant low-eccentricity thermoplastic semiconductive shielding material and preparation method and application thereof |
| CN113549276A (en) * | 2021-08-13 | 2021-10-26 | 浙江万马高分子材料集团有限公司 | Semiconductive shielding material and preparation method thereof |
| CN114783658A (en) * | 2022-05-31 | 2022-07-22 | 国网智能电网研究院有限公司 | Polypropylene insulation wire core and preparation method thereof |
| CN115312271A (en) * | 2022-06-28 | 2022-11-08 | 江苏上上电缆集团有限公司 | Three-layer co-extrusion production method of medium-voltage polypropylene insulated wire core |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026279A1 (en) * | 1998-11-03 | 2000-05-11 | Uniroyal Chemical Company, Inc. | Blending of polymeric materials and fillers |
| CN101522773A (en) * | 2006-10-16 | 2009-09-02 | 西巴控股有限公司 | Stabilized medium and high voltage insulation composition |
| CN101891914A (en) * | 2010-07-29 | 2010-11-24 | 山东科虹线缆有限公司 | Composite type high-conductivity polymer material and preparation method thereof |
-
2018
- 2018-07-06 CN CN201810738227.4A patent/CN109111619A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000026279A1 (en) * | 1998-11-03 | 2000-05-11 | Uniroyal Chemical Company, Inc. | Blending of polymeric materials and fillers |
| CN101522773A (en) * | 2006-10-16 | 2009-09-02 | 西巴控股有限公司 | Stabilized medium and high voltage insulation composition |
| CN101891914A (en) * | 2010-07-29 | 2010-11-24 | 山东科虹线缆有限公司 | Composite type high-conductivity polymer material and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112538210A (en) * | 2020-12-11 | 2021-03-23 | 苏州通优新材料科技有限公司 | Deformation-resistant low-eccentricity thermoplastic semiconductive shielding material and preparation method and application thereof |
| CN113549276A (en) * | 2021-08-13 | 2021-10-26 | 浙江万马高分子材料集团有限公司 | Semiconductive shielding material and preparation method thereof |
| CN114783658A (en) * | 2022-05-31 | 2022-07-22 | 国网智能电网研究院有限公司 | Polypropylene insulation wire core and preparation method thereof |
| CN115312271A (en) * | 2022-06-28 | 2022-11-08 | 江苏上上电缆集团有限公司 | Three-layer co-extrusion production method of medium-voltage polypropylene insulated wire core |
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