CN108456359A - The preparation method of graphene power cable shield layer - Google Patents
The preparation method of graphene power cable shield layer Download PDFInfo
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- CN108456359A CN108456359A CN201810269199.6A CN201810269199A CN108456359A CN 108456359 A CN108456359 A CN 108456359A CN 201810269199 A CN201810269199 A CN 201810269199A CN 108456359 A CN108456359 A CN 108456359A
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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
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/06—Pretreated ingredients and ingredients covered by the main groups C08K3/00 - C08K7/00
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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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
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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
- C08K9/00—Use of pretreated ingredients
- C08K9/04—Ingredients treated with organic substances
- C08K9/06—Ingredients treated with organic substances with silicon-containing compounds
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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
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- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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Abstract
The invention discloses a kind of preparation methods of graphene power cable shield layer, raw material including preparation and preparation process, the raw material for preparing includes matrix resin, conductive filler carbon black and graphene modified, lubricant, antioxidant, crosslinking agent etc., and the preparation method prepares polymeric barrier layer materials using solution composite approach or melting composite algorithm.The present invention plays good conductive effect to largely reduce the usage amount of carbon black by adding a small amount of graphene, graphene generates synergistic effect with carbon black, more complete conductive network can be formed in matrix resin, promote the formation of conductive path, the addition of graphene not only meets requirement and the mechanical requirements of shielded layer conductivity, the usage amount of carbon black is greatly reduced simultaneously, and can guarantee the smoothness and extrusion performance of shielding layer surface, the stretch-proof of obtained shielded layer and Resisting fractre intensity are more excellent.
Description
Technical field
The present invention relates to field of cables, the especially preparation method of power cable shield layer.
Background technology
As Chinese Urbanization is accelerated with what is modernized, domestic electric system has also obtained development at full speed, electricity
The demand of cable and standard is required also to be continuously improved, national sector standard regulation, which is more than the high-tension cable of 5KV, must use and shield
Layer, the main effect of shielded layer are so that it is isolated with external electrical field in the cable electric field limitation, and obtained in insulating layer
Even field distribution, meanwhile, shielded layer also provides one layer of smooth, continuous, conductive, equipotential boundary for insulating layer and conductor
Face.Cable shield is the very low and relatively thin semi-conductive layer of resistivity, can improve electric force lines distribution in cable insulation, improves cable
Dielectric level.Semiconductive shielding layer can not only mitigate the magnetic field that cable is generated by larger current in medium and high voltage cable, but also can be with
Play the role of ground protection.Since the insulating layer of medium and high voltage cable has prodigious electric field strength, any semiconductive shielding layer
The tiny flaw on surface may all cause the gross distortion of electric field so as to cause material degeneration, and this requires medium and high voltage cables
Semi-conductive screen layer material has very high processing performance.In order to reach good electric conductivity, traditional semiconductive shielding layer
Preparation process uses to be added a large amount of carbon black (additive amount 20%-50%) and reaches certain conductivity in a polymer matrix.
But the processing performance that excessive carbon black is unfavorable for shielding material is added, the surface defect after extrusion molding is excessive, if additive amount
It does not reach requirement, then can influence the electric conductivity of shielded layer.The slickness for having excellent electric property and apparent height is half
The indispensable condition of conductive shielding layer.Therefore, it is badly in need of finding a kind of conductive, good heat conductivity, nor affects on squeezing for shielded layer
Go out performance, and the conductive filler that can increase the smoothness of shielded layer solves defect existing for present cable shield.
Invention content
For overcome the deficiencies in the prior art, the present invention provides a kind of preparation method of graphene power cable shield layer,
Graphene has excellent electrical property, hot property and mechanical performance, is now to know the strongest material of electric conductivity in material, therefore,
A small amount of graphene can play good conductive effect to largely reduce the usage amount of carbon black as conductive filler, in order not to
The mechanical property for influencing shielded layer entirety, graphene and carbon black are jointly added in shielded layer, conductivity can not only be reached
It is required that mechanical requirements, while the usage amount of carbon black is greatly reduced, it can guarantee the smoothness and extrusion performance of shielding layer surface.
The present invention is for technical scheme applied to solve the technical problem：A kind of preparation of graphene power cable shield layer
Method, including the raw material of preparation and preparation process two parts, the raw material for preparing includes matrix resin, conductive filler, You Jirong
Agent, lubricant, antioxidant, crosslinking agent；Polymeric barrier layer materials are prepared using solution composite approach or melting composite algorithm；
The solution composite approach prepares shielded layer and is prepared suitable for laboratory, and raw material includes matrix resin, conductive filler, is led
Electric filler selects graphene and carbon black, organic solvent to select dimethylbenzene；Preparation process is as follows：
(1) gross mass of composite material is determined as 100 parts, wherein 84 parts of matrix resin, graphene is 6 parts, and carbon black is
10 parts；
(2) matrix resin is dissolved in dimethylbenzene under conditions of 60 DEG C and obtains solution A；
(3) by graphene dispersion, ultrasound 1 hour obtains solution B until graphene uniform disperses in dimethylbenzene；
(4) carbon black is added in solution B, ultrasonic agitation is uniform, obtains liquid C；
(5) solution C is slowly added into solution A, is stirred while adding, until solution uniformly obtains liquid D；
(6) liquid D is put into baking oven and is dried to obtain composite material E；
(7) composite material is cooled to room temperature, is put into extruder and is squeezed out together with core conductor in cable；
The melting composite algorithm prepares shielded layer and is suitble to industrially prepared, and raw material includes matrix resin, conductive filler, lubrication
Agent, antioxidant, crosslinking agent；Preparation process is as follows：
(1) gross mass of composite material is determined as 100 parts, wherein 73 parts of matrix resin, graphene is 5 parts, and carbon black is
15 parts, 3 parts of lubricant, 1 part of antioxidant, 3 parts of crosslinking agent；
(2) matrix resin, lubricant, graphene, carbon black, antioxidant, crosslinking agent are added in torque rheometer successively,
Set temperature is 110 DEG C, and rotation time is 10 minutes, and rotating speed is 65 turns per minute, keeps conductive filler effectively evenly dispersed, shape
At conductive network；
(3) after mixing, composite material is put into extruder and is squeezed out together with core conductor in cable.
The preparation method of above-mentioned graphene power cable shield layer, described matrix resin are total for ethylene-vinyl acetate
Polymers, vinyl acetate content 32%.
The preparation method of above-mentioned graphene power cable shield layer, the graphene are modified graphene, modified material
For silane coupling agent KH570.
The preparation method of above-mentioned graphene power cable shield layer, the carbon black are super-normal structure black.
The preparation method of above-mentioned graphene power cable shield layer, the lubricant are hard amide, and antioxidant is
Antioxidant 300, crosslinking agent are cumyl peroxide.
Compared to the prior art, the beneficial effects of the invention are as follows：
The preparation method of graphene power cable shield layer of the present invention is played by a small amount of graphene of addition and is led well
Electric effect makes conductive filler disperse in matrix resin more uniformly, by graphite to largely reduce the usage amount of carbon black
Alkene and carbon black are jointly added in shielded layer, and graphene generates synergistic effect with carbon black, can be formed in matrix resin completeer
Whole conductive network promotes the formation of conductive path, the addition of graphene not only to meet requirement and the mechanics of shielded layer conductivity
It is required that while greatly reduce the usage amount of carbon black, and can guarantee the smoothness and extrusion performance of shielding layer surface, obtained screen
Stretch-proof and the Resisting fractre intensity for covering layer are more excellent.
Specific implementation mode
The content of present invention is specifically described below, but following embodiment is merely to illustrate the present invention, is not limited to this hair
Bright range.
【Embodiment 1】
A kind of preparation method of graphene power cable shield layer, including the raw material of preparation and preparation process two parts, are adopted
Polymeric barrier layer materials are prepared with solution composite approach, laboratory is suitble to prepare, raw material includes matrix resin, conductive filler and organic molten
Agent, conductive filler select graphene and carbon black, organic solvent to select dimethylbenzene；Preparation process is as follows：
(1) gross mass of composite material is determined as 100 parts, wherein 84 parts of matrix resin, graphene is 6 parts, and carbon black is
10 parts；
(2) matrix resin is dissolved in dimethylbenzene under conditions of 60 DEG C and obtains solution A；
(3) by graphene dispersion, ultrasound 1 hour obtains solution B until graphene uniform disperses in dimethylbenzene；
(4) carbon black is added in solution B, ultrasonic agitation is uniform, obtains liquid C；
(5) solution C is slowly added into solution A, is stirred while adding, until solution uniformly obtains liquid D；
(6) liquid D is put into baking oven and is dried to obtain composite material E；
(7) composite material is cooled to room temperature, is put into extruder and is squeezed out together with core conductor in cable.
Further, described matrix resin is ethylene-vinyl acetate copolymer, vinyl acetate content 32%.
Further, the graphene is modified graphene, and modified material is silane coupling agent KH570.
Further, the carbon black is super-normal structure black.
【Embodiment 2】
A kind of preparation method of graphene power cable shield layer, including the raw material of preparation and preparation process two parts, are adopted
Polymeric barrier layer materials are prepared with melting composite algorithm, suitable industrially prepared, raw material includes matrix resin, conductive filler, lubricant, antioxygen
Agent, crosslinking agent；
Preparation process is as follows：
(1) gross mass of composite material is determined as 100 parts, wherein 73 parts of matrix resin, graphene is 5 parts, and carbon black is
15 parts, 3 parts of lubricant, 1 part of antioxidant, 3 parts of crosslinking agent；
(2) matrix resin, lubricant, graphene, carbon black, antioxidant, crosslinking agent are added in torque rheometer successively,
Set temperature is 110 DEG C, and rotation time is 10 minutes, and rotating speed is 65 turns per minute, keeps conductive filler effectively evenly dispersed, shape
At conductive network；
(3) after mixing, composite material is put into extruder and is squeezed out together with core conductor in cable.
Further, described matrix resin is ethylene-vinyl acetate copolymer, vinyl acetate content 32%.
Further, the graphene is modified graphene, and modified material is silane coupling agent KH570.
Further, the carbon black is super-normal structure black.
Further, the lubricant is hard amide, and antioxidant is antioxidant 300, and crosslinking agent is peroxidating two
Isopropylbenzene.
Above example is only exemplary embodiment of the present invention, is not used in the limitation present invention, protection scope of the present invention
It is defined by the claims.Those skilled in the art can within the spirit and scope of the present invention make respectively the present invention
Kind modification or equivalent replacement, this modification or equivalent replacement also should be regarded as being within the scope of the present invention.
Claims (5)
1. a kind of preparation method of graphene power cable shield layer, including the raw material of preparation and preparation process two parts, special
Sign is that the raw material for preparing includes matrix resin, conductive filler, organic solvent, lubricant, antioxidant, crosslinking agent, and use is molten
Liquid composite algorithm or melting composite algorithm prepare polymeric barrier layer materials；
The solution composite approach prepares shielded layer and is prepared suitable for laboratory, and raw material includes matrix resin, conductive filler, and conduction is filled out
Material selects graphene and carbon black, organic solvent to select dimethylbenzene；Preparation process is as follows：
(1) gross mass of composite material is determined as 100 parts, wherein 84 parts of matrix resin, graphene is 6 parts, and carbon black is 10 parts；
(2) matrix resin is dissolved in dimethylbenzene under conditions of 60 DEG C and obtains solution A；
(3) by graphene dispersion, ultrasound 1 hour obtains solution B until graphene uniform disperses in dimethylbenzene；
(4) carbon black is added in solution B, ultrasonic agitation is uniform, obtains liquid C；
(5) solution C is slowly added into solution A, is stirred while adding, until solution uniformly obtains liquid D；
(6) liquid D is put into baking oven and is dried to obtain composite material E；
(7) composite material is cooled to room temperature, is put into extruder and is squeezed out together with core conductor in cable；
The melting composite algorithm prepare shielded layer be suitable for it is industrially prepared, raw material include matrix resin, conductive filler, lubricant,
Antioxidant, crosslinking agent；Preparation process is as follows：
(1) gross mass of composite material being determined as 100 parts, wherein 73 parts of matrix resin, graphene is 5 parts, and carbon black is 15 parts,
3 parts of lubricant, 1 part of antioxidant, 3 parts of crosslinking agent；
(2) matrix resin, lubricant, graphene, carbon black, antioxidant, crosslinking agent are added in torque rheometer successively, setting
Temperature is 110 DEG C, and rotation time is 10 minutes, and rotating speed is 65 turns per minute, keeps conductive filler effectively evenly dispersed, formation is led
Electric network；
(3) after mixing, composite material is put into extruder and is squeezed out together with core conductor in cable.
2. the preparation method of graphene power cable shield layer according to claim 1, which is characterized in that described matrix tree
Fat is ethylene-vinyl acetate copolymer, vinyl acetate content 32%.
3. the preparation method of graphene power cable shield layer according to claim 1, which is characterized in that the graphene
For modified graphene, modified material is silane coupling agent KH570.
4. the preparation method of graphene power cable shield layer according to claim 1, which is characterized in that the carbon black is
Super-normal structure black.
5. the preparation method of graphene power cable shield layer according to claim 1, which is characterized in that the lubricant
For hard amide, antioxidant is antioxidant 300, and crosslinking agent is cumyl peroxide.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810269199.6A CN108456359A (en) | 2018-03-29 | 2018-03-29 | The preparation method of graphene power cable shield layer |
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| CN201810269199.6A CN108456359A (en) | 2018-03-29 | 2018-03-29 | The preparation method of graphene power cable shield layer |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280260A (en) * | 2018-09-17 | 2019-01-29 | 国家电网有限公司 | Add the ethylene-vinyl acetate copolymer conductive granule and preparation method of graphene |
| CN109370027A (en) * | 2018-09-18 | 2019-02-22 | 特变电工(德阳)电缆股份有限公司 | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
| CN111303526A (en) * | 2020-04-02 | 2020-06-19 | 成都鑫成鹏高分子科技股份有限公司 | Multilayer graphene modified semiconductive shielding material and preparation method thereof |
| CN112920462A (en) * | 2021-02-03 | 2021-06-08 | 上海驰程化工工贸有限公司 | Conductive composite master batch for rubber cable shielding material and preparation method thereof |
| CN113150487A (en) * | 2021-02-07 | 2021-07-23 | 南方电网科学研究院有限责任公司 | Preparation method of thermoplastic shielding material |
| CN113421703A (en) * | 2021-07-30 | 2021-09-21 | 湖北联上化工科技有限公司 | High-low temperature resistant aviation wire harness material and preparation method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109280260A (en) * | 2018-09-17 | 2019-01-29 | 国家电网有限公司 | Add the ethylene-vinyl acetate copolymer conductive granule and preparation method of graphene |
| CN109280260B (en) * | 2018-09-17 | 2021-05-18 | 辽宁通用电缆有限公司 | Graphene-added ethylene-vinyl acetate copolymer conductive granules and preparation method thereof |
| CN109370027A (en) * | 2018-09-18 | 2019-02-22 | 特变电工(德阳)电缆股份有限公司 | A kind of compound semi-conductive shielding material of graphene, preparation method and applications |
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| CN111303526A (en) * | 2020-04-02 | 2020-06-19 | 成都鑫成鹏高分子科技股份有限公司 | Multilayer graphene modified semiconductive shielding material and preparation method thereof |
| CN112920462A (en) * | 2021-02-03 | 2021-06-08 | 上海驰程化工工贸有限公司 | Conductive composite master batch for rubber cable shielding material and preparation method thereof |
| CN112920462B (en) * | 2021-02-03 | 2022-07-26 | 上海驰程化工工贸有限公司 | Conductive composite master batch for rubber cable shielding material and preparation method thereof |
| CN113150487A (en) * | 2021-02-07 | 2021-07-23 | 南方电网科学研究院有限责任公司 | Preparation method of thermoplastic shielding material |
| CN113421703A (en) * | 2021-07-30 | 2021-09-21 | 湖北联上化工科技有限公司 | High-low temperature resistant aviation wire harness material and preparation method thereof |
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