CN109810453A - A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method - Google Patents
A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method Download PDFInfo
- Publication number
- CN109810453A CN109810453A CN201910117142.9A CN201910117142A CN109810453A CN 109810453 A CN109810453 A CN 109810453A CN 201910117142 A CN201910117142 A CN 201910117142A CN 109810453 A CN109810453 A CN 109810453A
- Authority
- CN
- China
- Prior art keywords
- mesohigh
- shielding material
- conductive shielding
- semi
- thermoplasticity
- 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.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of mesohigh thermoplasticity semi-conductive shielding materials and preparation method.The each component and parts by weight of the shielding material are as follows: 80-95 parts of base resins；5-20 parts of elastomers；20-35 parts of conductive blacks；0.4-2 parts of antioxidant；0.4-1 parts of copper resistant agents；0.4-1 parts of lubricants；The base resin is block polypropylene (PPB).
Description
Technical field
The present invention relates to cable material preparation field, relates more specifically to a kind of middle-high voltage power cable and partly led with thermoplasticity
Electrical shielding material and preparation method.
Background technique
Semiconductive shielding layer is the important component of middle-high voltage power cable structure.For 6KV and above mesohigh electricity
Power cable, since outside applies, voltage is higher, and the electric field stress that insulating layer is born is big, and the air gap generated between insulating layer and conductor exists
Under high field is strong, gas is ionized in hole, Damage to insulation layer, eventually leads to insulation breakdown destruction；The presence of metal protuberance makes
The field distribution for obtaining insulating layer inner wall is uneven, is also easy to produce corona discharge under high field intensity, insulating layer is caused to puncture.To avoid cable
Internal electric field stress collection neutralizes protection insulating layer, it is desirable that distinguishes in conductor thread core and insulating layer and between insulating layer and restrictive coating
Add one layer of semiconductive shielding layer, make in cable each layer be in close contact and between insulation conducting wire provide it is smooth, continuous, equipotential
Linkage interface, it is ensured that electric field stress is evenly distributed, and improves cable internal electric field radial distribution, prevents shelf depreciation, reduces electric field
Intensity, and insulating layer heating is reduced to a certain extent, insulating layer is protected, to improve cable reliability of operation.Therefore, half
The quality of conductive shield layer sizing is played a crucial role to cable using safe and service life.
Domestic and international middle high-pressure cable insulation system is based on XLPE material at present, but XLPE is thermosetting resin, is existed
Not recoverable, do not meet environmental-friendly disadvantage, while the crosslinking process itself that while manufacturing XLPE cable uses has energy
Consume big, low efficiency.Therefore, exploitation thermoplastic insulation material is always the target that colleague makes great efforts both at home and abroad.And polypropylene (PP) because
With good electric property, Good Heat-resistance long-term operating temperature up to 90 DEG C, it is can be recycled that meet environmental protection recyclable
The growth requirement of cable insulation material, the extensive concern by researcher.
General acrylic resin is difficult to keep higher while a large amount of conductive blacks are added and meet low resistance requirement
Mechanical property, flexibility, lower temperature resistance, and polypropylene material ageing-resistant performance is poor, and carbon black, which is added, will be substantially reduced material
Resistance to ag(e)ing, while the addition of a large amount of carbon black causes material molten flowing property poor, is unfavorable for processing.
Therefore, there is an urgent need in the art to a kind of semiconductive material of overcome the deficiencies in the prior art, it can satisfy mesohigh
Technical requirements of the power cable to material.
Summary of the invention
Present invention aims to obtain a kind of middle-high voltage power cable of overcome the deficiencies in the prior art thermoplasticity semiconductive
Shielding material.
The second object of the present invention is to obtain a kind of middle-high voltage power cable thermoplastic of overcome the deficiencies in the prior art
The preparation method of property semi-conductive shielding material.
The third object of the present invention is to obtain a kind of middle-high voltage power cable of overcome the deficiencies in the prior art.
In the first aspect of the present invention, a kind of mesohigh thermoplasticity semi-conductive shielding material is provided, wherein the screen
Each component and the parts by weight for covering material are as follows:
The base resin is block polypropylene (PPB).
In another preferred example, the elastomer is propylene-ethylene copolymers (PER), ethylene propylene diene rubber copolymer
(EPDM) or one or both of ethylene-octene copolymer (POE).
In another preferred example, the weight ratio of the block polypropylene and elastomer be (70-100) ﹕ (5-30), more preferably
For (80-90) ﹕ (10-20).
In another preferred example, the antioxidant is four [β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] Ji Wusi
Alcohol ester (antioxidant 1010), phosphorous acid three (2,4- di-tert-butyl-phenyl) ester (irgasfos 168), 4,4- thiobis (6- tert-butyl-
One or more of 3- methylphenol) (antioxidant 300).
In another preferred example, the copper resistant agent is N- salicylamide base phthalimide (MDA-5), 2,2- oxamides
Base-bis- [ethyl -3- (3,5- di-tert-butyl-hydroxy phenyl)] propionic esters (Naugard XL-1), N, the bis- [3- (3,5- bis- of N-
One or more of tert-butyl-hydroxy phenyl) propionyl] hydrazine (MD-1024).
In another preferred example, the lubricant is polyethylene wax, polypropylene wax, atoleine (white oil), calcium stearate
Or one of barium stearate or a variety of.
In the second aspect of the present invention, a kind of mesohigh thermoplasticity for preparing and providing present invention as described above is provided
The preparation method of semi-conductive shielding material, the preparation method the following steps are included:
The component being related to present invention as described above is provided；
Matrix resin, elastomer, conductive black, antioxidant, suppression copper agent and lubricant are mixed according to the ratio, warp
The mesohigh that mixing is provided present invention as described above thermoplasticity semi-conductive shielding material.
In the third aspect of the present invention, provides the mesohigh that one kind provides present invention as described above and partly led with thermoplasticity
Cable made from electrical shielding material.
Accordingly, the present invention provides a kind of middle-high voltage power cables that can satisfy to the semiconductive material of the technical requirements of material
Material.
Specific embodiment
After extensive and in-depth study, use block polypropylene is that matrix resin is high in thermoplasticity to meet to the present inventor
The requirement of piezoelectric wire cable can meet 90 DEG C of long-term use temperature requirement without crosslinking Treatment.Proper proportion is added simultaneously
Elastomeric material solves the problems, such as that the type semiconductive material cannot be considered in terms of low resistance requirement and physical property is poor；By suitable
Antioxygen agent prescription makes the resistance to ag(e)ing of material be able to satisfy technical requirements.
In the present invention, term " containing " or " comprising " indicate that various composition can be applied to mixture or group of the invention together
It closes in object.Therefore, term " mainly by ... form " and " consist of " are included in term " containing " or " comprising ".
It is described in detail to various aspects of the present invention below:
Mesohigh thermoplasticity semi-conductive shielding material
In the first aspect of the present invention, a kind of mesohigh thermoplasticity semi-conductive shielding material, the shielding material are provided
The each component and parts by weight of material are as follows:
The base resin is block polypropylene (PPB).
In the specific embodiment of the present invention, the elastomer is propylene-ethylene copolymers (PER), ternary second
One or both of third rubbery copolymer (EPDM) or ethylene-octene copolymer (POE).
In a preferred example, the weight ratio of the block polypropylene and elastomer be (70-100) ﹕ (5-30), more preferably
(80-90) ﹕ (10-20).
In the specific embodiment of the present invention, by the total amount of base resin and elastomer be 100 parts by weight in terms of, institute
The dosage for stating conductive black is no less than 20-35 parts by weight, preferably no less than 20-30 parts by weight.
In the specific embodiment of the present invention, the antioxidant is four [β-(3,5- di-t-butyl -4- hydroxy benzenes
Base) propionic acid] pentaerythritol ester (antioxidant 1010), phosphorous acid three (2,4- di-tert-butyl-phenyl) ester (irgasfos 168), 4,4- sulphur
One or more of Dai Shuan (6- tert-butyl -3- methylphenol) (antioxidant 300)；It is preferred that two or more.
Lubricant of the invention is not specifically limited, and various available lubricants can be used, as long as not to of the invention
Goal of the invention generates limitation.Such as, but not limited to, matal deactivator, such as hydrazine class compound.
In the specific embodiment of the present invention, the copper resistant agent is N- salicylamide base phthalimide
(MDA-5), bis- [ethyl -3- (3,5- di-tert-butyl-hydroxy phenyl)] propionic ester (the Naugard XL- of 2,2- oxalyl amido -
1) one of bis- [3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl] hydrazines (MDA-1024) of, N, N- or certain combinations.This hair
Bright lubricant is not specifically limited, and can use various available lubricants, as long as not generating to goal of the invention of the invention
Limitation.Such as stearate, polyethylene wax, silicone resin.
In the specific embodiment of the present invention, the lubricant is polyethylene wax, polypropylene wax, atoleine
One of (white oil), calcium stearate, barium stearate or certain combinations.
Preparation method
The present invention provides a kind of preparation method of mesohigh thermoplasticity semi-conductive shielding material of the present invention, described
Preparation method the following steps are included:
The first step, it is according to the present invention formula by matrix resin, elastomer, conductive black (CB), antioxidant, suppression copper agent and
Lubricant is mixed by mass fraction (wt%) proportion, much mixture
Second step makes mixture that the thermoplasticity semi-conductive shielding material of middle-high voltage power cable be made by mixing.
In a kind of specific embodiment of the invention, above-mentioned second step is to make mixture in mixer after melt blending
The thermoplasticity semi-conductive shielding material of obtained middle-high voltage power cable.
In a preferred example, above-mentioned second step melt blending at 180 DEG C -230 DEG C, mixing time 10-20min.
In a preferred example, banbury rotating speed is 30-60r/min in above-mentioned second step.
Cable
The present invention provides cable made from a kind of mesohigh thermoplasticity semi-conductive shielding material of the present invention.
The ordinary skill in the art can be used in the preparation method of the cable.
In a specific embodiment of the invention, the cable can meet needed for thermoplastic insulated cable.
The present invention has the advantages that
1, semiconductive material provided by the invention can take into account the problem of low resistance requirement and good physical performance.
2, semiconductive material provided by the invention can be improved ageing-resistant performance and solve the processing problems of material.
Other aspects of the present invention are apparent to those skilled in the art due to this disclosure
's.
Present invention will be further explained below with reference to specific examples.It should be understood that these embodiments are merely to illustrate the present invention
Rather than it limits the scope of the invention.In the following examples, the experimental methods for specific conditions are not specified, usually marks according to country
Quasi- measurement.If being built without corresponding national standard according to general international standard, normal condition or according to manufacturer
The condition of view carries out.Unless otherwise stated, otherwise all number is parts by weight, and all percentage is weight percentage, institute
The polymer molecular weight stated is number-average molecular 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.Furthermore any method similar to or equal to what is recorded and material all can be applied to the present invention
In method.
Each component is the specific dosage calculated when gained is processed according to aforementioned proportion with numerical quantity in following embodiments, non-
Proportion.
The performance of the semi-conductive shielding material of embodiment 1-6 preparation is listed in table 1, the semi-conductive screen of comparative example 1-3 preparation
The performance of material is listed in table 2.Test content Primary Reference " 10738-2007 voltage rating 35KV of JB/T and following extruded insulation
Cable semiconductive shieldin material " standard requirements.
Block polypropylene melt index used in embodiment is 1.0-5.0g/10min, tensile strength > 25MPa, fracture
Elongation > 500%, impact brittle temperature are lower than -15 DEG C.
The parameter of conductive black used in embodiment see the table below
| The trade mark | A | B | C |
| DBP absorption value ml/g | 280 | 270 | 130-140 |
| Partial size nm | 20-30 | 9-17 | 10-20 |
| Resistivity Ω m | 0.8-1.0 | ≤0.5 | |
| Heating loss % | ≤0.5 | ≤0.5 | 0.5-1.5 |
| Ash content % | ≤0.5 | ≤0.3 | 0.01-0.2 |
| PH value | 7.5-9 | 7.1 | |
| 45 μm of % of sieve residue | ≤0.02 | 0.02 |
Embodiment 1
1. by 140 grams of block polypropylenes (PPB) and propylene-ethylene copolymers (PER) mixture (PP/PER=9/1), 49
Gram conductive black C, 1.12 grams of antioxidant 1010s/168/300 mixture, 0.98 gram of suppression copper agent MD1024,0.98 gram of polypropylene wax
Lubricant uniformly mixes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 190 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Embodiment 2
1. by 140 grams of block polypropylenes (PPB) and ethylene-octene copolymer (POE) mixture (PP/POE=8/2),
49 grams of conductive black C, 1.12 grams of antioxidant 1010s/168/300 mixture, 0.98 gram of suppression copper agent MD1024,1.4 grams of polypropylene
Wax/stearmide mixture uniformly mixes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 190 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Embodiment 3
1. by 140 grams of block polypropylenes (PPB) and propylene-ethylene copolymers (PER) mixture (PP/PER=8/2), 42
Gram conductive black C, 1.4 grams of irgasfos 168s/300 mixtures, 1.26 grams of suppression copper agent MDA-5,1 gram of polyethylene wax lubricant are uniform
Mixing；
2. melt blending in mixer is added in the above mixture, smelting temperature is 190 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Embodiment 4
1. by 140 grams of block polypropylenes (PPB) and propylene-ethylene copolymers (PER) mixture (PP/PER=8/2), 28
Gram conductive black A, 1.4 grams of antioxidant 1010s/168 mixtures, 1.12 grams of suppression copper agent MD1024,1 gram of polyethylene wax lubricant are equal
Even mixing
2. melt blending in mixer is added in the above mixture, smelting temperature is 200 DEG C, rotor speed 60r/min,
Mixing time is that 10min obtains semi-conductive shielding material.
Embodiment 5
1. by 140 grams of block polypropylenes (PPB) and ethylene-octene copolymer (POE) mixture (PP/POE=8/2), 40
Gram conductive black B, 1.4 grams of antioxidant 300,1.12 grams of suppression copper agent Naugard XL-1,1.4 grams of polypropylene wax/atoleines
Mixture uniformly mixes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 210 DEG C, rotor speed 60r/min,
Mixing time is that 20min obtains semi-conductive shielding material.
Embodiment 6
1. by 140 grams of block polypropylenes (PPB) and propylene-ethylene copolymers (PER) mixture (PP/PER=85/15),
49 grams of conductive black B, 1.4 grams of antioxidant 1010s, 1.12 grams of suppression copper agent MD1024,0.98 gram of polypropylene wax lubricant uniformly mix
It closes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 210 DEG C, rotor speed 60r/min,
Mixing time is that 20min obtains semi-conductive shielding material.
Table 1
The result shows that semi-conductive shielding material good mechanical performance, low-temperature good toughness, volume resistivity is lower, material
Performance meet JB/T 10738-2007 to the performance requirement of thermoplasticity semi-conductive shielding material.
Comparative example 1
1. by 140 grams of random polypropylenes (PPR) and propylene-ethylene copolymers (PER) mixture (PPR/PER=80/20),
49 grams of conductive black C, 1.12 grams of antioxidant 1010s/168/300 mixture, 0.98 gram of suppression copper agent MD1024,0.98 gram of polypropylene
Wax lubricant uniformly mixes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 170 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Comparative example 2
1. by 140 grams of block polypropylenes (PPB) and propylene-ethylene copolymers (PER) mixture (PP/PER=95/5), 49
Gram conductive black C, 1.12 grams of antioxidant 1010s/168/300 mixture, 0.98 gram of suppression copper agent MD1024,0.98 gram of polypropylene wax
Lubricant uniformly mixes；
2. melt blending in mixer is added in the above mixture, smelting temperature is 190 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Comparative example 3
1. by 140 grams of block polypropylenes (PPB), 49 grams of conductive black C, 1.12 grams of antioxidant 1010s/168/300 mixing
Object, 0.98 gram of suppression copper agent MD1024,0.98 gram of polypropylene wax lubricant uniformly mix；
2. melt blending in mixer is added in the above mixture, smelting temperature is 190 DEG C, rotor speed 60r/min,
Mixing time is that 15min obtains semi-conductive shielding material.
Table 2
Comparative example 2 and 3 the results show that the main mechanical property for improving material of the addition of elastomer, comparison with standard requirement
It can guarantee certain surplus.
The foregoing is merely illustrative of the preferred embodiments of the present invention, the substantial technological content model being not intended to limit the invention
It encloses, substantial technological content of the invention is broadly defined in the scope of the claims of application, any technology that other people complete
Entity or method also or a kind of equivalent change, will if identical with defined in the scope of the claims of application
It is considered as being covered by among the scope of the claims.
All references mentioned in the present invention is incorporated herein by reference, independent just as each document
It is incorporated as with reference to such.In addition, it should also be understood that, those skilled in the art can be right after having read above content of the invention
The present invention makes various changes or modifications, and these equivalent forms also fall within the scope of the appended claims of the present application.
Claims (9)
1. a kind of mesohigh thermoplasticity semi-conductive shielding material, wherein each component and parts by weight of the shielding material are such as
Under:
The base resin is block polypropylene (PPB).
2. mesohigh as described in claim 1 thermoplasticity semi-conductive shielding material, which is characterized in that the elastomer is third
Alkene-ethylene copolymer (PER), one of ethylene propylene diene rubber copolymer (EPDM) or ethylene-octene copolymer (POE) or two
Kind.
3. mesohigh as described in claim 1 thermoplasticity semi-conductive shielding material, which is characterized in that the block polypropylene
Weight ratio with elastomer is (70-100) ﹕ (5-30).
4. mesohigh as claimed in claim 3 thermoplasticity semi-conductive shielding material, which is characterized in that the block polypropylene
Weight ratio with elastomer is (80-90) ﹕ (10-20).
5. mesohigh as described in claim 1 thermoplasticity semi-conductive shielding material, which is characterized in that the antioxidant is four
[β-(3,5- di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester (antioxidant 1010), (2, the 4- di-t-butyls of phosphorous acid three
Phenyl) ester (irgasfos 168), one or both of 4,4- thiobis (6- tert-butyl -3- methylphenol) (antioxidant 300) with
On.
6. mesohigh as described in claim 1 thermoplasticity semi-conductive shielding material, which is characterized in that the copper resistant agent is N-
Salicylamide base phthalimide (MDA-5), 2,2- oxalyl amido-bis- [ethyl -3- (3,5- di-t-butyl -4- hydroxy benzenes
Base)] propionic ester (Naugard XL-1), N, in bis- [3- (3,5- di-tert-butyl-hydroxy phenyl) propionyl] hydrazines (MD-1024) of N-
One or more.
7. mesohigh as described in claim 1 thermoplasticity semi-conductive shielding material, which is characterized in that the lubricant is poly-
One of ethylene waxes, polypropylene wax, atoleine (white oil), calcium stearate or barium stearate are a variety of.
8. a kind of prepare the preparation side such as the described in any item mesohigh thermoplasticity semi-conductive shielding materials of claim 1-7
Method, which is characterized in that the preparation method the following steps are included:
The described in any item components of claim 1-7 are provided；
Matrix resin, elastomer, conductive black, antioxidant, suppression copper agent and lubricant are mixed according to the ratio, through mixing
It obtains such as the described in any item mesohigh thermoplasticity semi-conductive shielding materials of claim 1-7.
9. mesohigh thermoplasticity semi-conductive shielding material described in a kind of 1-7 any claim as described in claim 1
Cable obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910117142.9A CN109810453A (en) | 2019-02-15 | 2019-02-15 | A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910117142.9A CN109810453A (en) | 2019-02-15 | 2019-02-15 | A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109810453A true CN109810453A (en) | 2019-05-28 |
Family
ID=66606651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910117142.9A Pending CN109810453A (en) | 2019-02-15 | 2019-02-15 | A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109810453A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330727A (en) * | 2019-07-29 | 2019-10-15 | 上海至正道化高分子材料股份有限公司 | A kind of mesohigh is with thermoplastic insulation material and preparation method thereof |
| CN111303516A (en) * | 2020-03-03 | 2020-06-19 | 江苏上上电缆集团新材料有限公司 | Environment-friendly thermoplastic strippable semiconductive shielding material for power cable insulation and preparation method thereof |
| CN111763374A (en) * | 2020-06-17 | 2020-10-13 | 江阴市海江高分子材料有限公司 | Semiconductive shielding material for polypropylene non-crosslinked cable and preparation method thereof |
| CN112280231A (en) * | 2020-10-14 | 2021-01-29 | 南方电网科学研究院有限责任公司 | Shielding material for polypropylene-based thermoplastic cable and preparation method thereof |
| CN113105694A (en) * | 2021-03-02 | 2021-07-13 | 中国电力科学研究院有限公司 | Medium-voltage polypropylene cable and preparation method thereof |
| CN114891295A (en) * | 2022-06-01 | 2022-08-12 | 青岛科技大学 | High-voltage direct-current cable and polypropylene semi-conductive shielding material and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367310A (en) * | 2011-09-21 | 2012-03-07 | 深圳市科聚新材料有限公司 | Conductive carbon black modified PP material and preparation method thereof |
| CN103772820A (en) * | 2014-01-21 | 2014-05-07 | 江苏力达塑料托盘制造有限公司 | Antistatic polyolefin composite material tray and preparation method thereof |
-
2019
- 2019-02-15 CN CN201910117142.9A patent/CN109810453A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367310A (en) * | 2011-09-21 | 2012-03-07 | 深圳市科聚新材料有限公司 | Conductive carbon black modified PP material and preparation method thereof |
| CN103772820A (en) * | 2014-01-21 | 2014-05-07 | 江苏力达塑料托盘制造有限公司 | Antistatic polyolefin composite material tray and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨名山 编: "《现代工程塑料改性——理论与实践》", 31 July 2009, 中国轻工业出版社 * |
| 洪定一 编: "《聚丙烯——原理、工艺与技术》", 30 September 2002, 中国石化出版社 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110330727A (en) * | 2019-07-29 | 2019-10-15 | 上海至正道化高分子材料股份有限公司 | A kind of mesohigh is with thermoplastic insulation material and preparation method thereof |
| CN110330727B (en) * | 2019-07-29 | 2022-02-08 | 上海至正新材料有限公司 | Thermoplastic insulating material for medium and high voltage and preparation method thereof |
| CN111303516A (en) * | 2020-03-03 | 2020-06-19 | 江苏上上电缆集团新材料有限公司 | Environment-friendly thermoplastic strippable semiconductive shielding material for power cable insulation and preparation method thereof |
| CN111763374A (en) * | 2020-06-17 | 2020-10-13 | 江阴市海江高分子材料有限公司 | Semiconductive shielding material for polypropylene non-crosslinked cable and preparation method thereof |
| CN112280231A (en) * | 2020-10-14 | 2021-01-29 | 南方电网科学研究院有限责任公司 | Shielding material for polypropylene-based thermoplastic cable and preparation method thereof |
| CN113105694A (en) * | 2021-03-02 | 2021-07-13 | 中国电力科学研究院有限公司 | Medium-voltage polypropylene cable and preparation method thereof |
| CN114891295A (en) * | 2022-06-01 | 2022-08-12 | 青岛科技大学 | High-voltage direct-current cable and polypropylene semi-conductive shielding material and preparation method thereof |
| CN114891295B (en) * | 2022-06-01 | 2023-11-17 | 青岛科技大学 | High-voltage direct-current cable, polypropylene semi-conductive shielding material thereof and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109810453A (en) | A kind of mesohigh thermoplasticity semi-conductive shielding material and preparation method | |
| CN105131419B (en) | A kind of high voltage direct current cable semiconductive shieldin material and preparation method thereof | |
| WO2022111152A1 (en) | Semi-conductive shielding material for high-voltage cable, and preparation method therefor | |
| CN110330727A (en) | A kind of mesohigh is with thermoplastic insulation material and preparation method thereof | |
| CN109749332A (en) | A kind of medium and high voltage cable insulation thermoplasticity semiconductive shieldin material and preparation method thereof | |
| CN102863686A (en) | Semiconductive low-smoke zero-halogen flame-retardant polyolefin sheath material and preparation method thereof | |
| CN109651691B (en) | Low-temperature-resistant oil-resistant torsion-resistant low-smoke halogen-free flame-retardant wind energy cable sheath material and preparation method and application thereof | |
| CN101885873A (en) | Semi-conductive ethylene vinyl acetate (EVA) plastic for shielding and production method thereof | |
| CN103739928A (en) | High-performance low smoke zero halogen power cable sheath material adopting silicon resin to enhance efficiency and preparation method thereof | |
| CN105837950B (en) | A kind of polyolefin-based conductive and dielectric composite material and preparation method thereof | |
| CN114702749A (en) | Flame-retardant polyolefin and preparation method thereof | |
| WO2024016580A1 (en) | Shielding material based on carbon nanofiber modification, and preparation method therefor and use thereof | |
| US20180298205A1 (en) | Semiconductive Shield Composition | |
| WO2024045340A1 (en) | Peel strength-improved semi-conductive shielding material, preparation method, article, and cable | |
| CN109251398B (en) | Semi-conductive shielding material for insulation and preparation method thereof | |
| CN106867115B (en) | Semiconductive inner shielding material of polypropylene copolymer insulated cable and preparation method thereof | |
| Liu et al. | Performance comparison of semi‐conductive shielding layer for high‐voltage cable based on polypropylene and low density polyethylene resin | |
| CN112724584A (en) | TPE sheath material for charging pile cable and preparation method thereof | |
| CN113698723A (en) | Polypropylene-based thermoplastic semiconductive shielding material for environment-friendly cable and preparation method thereof | |
| CN111363229A (en) | High-voltage rubber cable insulation semi-conductive shielding material | |
| CN106700211A (en) | Semi-conductive shielding material for high voltage grade power cables | |
| CN108485048A (en) | A kind of cable cover(ing) sizing material and preparation method thereof | |
| CN114213798A (en) | Polypropylene thermoplastic semi-conductive shielding material and preparation method thereof | |
| CN111825981A (en) | Radiation-resistant nuclear-grade thermoplastic low-smoke halogen-free flame-retardant cable sheath material and preparation method thereof | |
| CN111524640A (en) | Insulated overhead cable |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20210604 Address after: 268 beihengshahe Road, Minhang District, Shanghai 201108 Applicant after: Shanghai Zhizheng New Material Co.,Ltd. Address before: 268 beihengshahe Road, Xinzhuang Industrial Zone, Minhang District, Shanghai 201108 Applicant before: SHANGHAI ORIGINALDOW ADVANCED COMPOUNDS Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190528 |