CN106280448A - A kind of Graphene composite cable material and preparation method thereof - Google Patents

A kind of Graphene composite cable material and preparation method thereof Download PDF

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CN106280448A
CN106280448A CN201610692303.3A CN201610692303A CN106280448A CN 106280448 A CN106280448 A CN 106280448A CN 201610692303 A CN201610692303 A CN 201610692303A CN 106280448 A CN106280448 A CN 106280448A
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composite cable
graphene composite
cable material
graphene
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张伟
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Hunan Sanxiang cable limited liability company
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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
    • C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
    • C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • B29C2948/9259—Angular velocity
    • 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
    • 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
    • C08L2207/00—Properties characterising the ingredient of the composition
    • C08L2207/06—Properties of polyethylene
    • C08L2207/062—HDPE

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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
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Abstract

The invention discloses a kind of Graphene composite cable material and preparation method thereof, with polyimides emulsion, modified montmorillonoid, high density polyethylene (HDPE), PEN, silane coupler KH 550, Cosan, titanium diboride, glass fibre, citrate, Graphene, choline alfoscerate, two sub-(3, 4 dimethyl) benzyl Sorbitol, dispersant, age resistor is raw material, coordinate and grind, it is spray-dried, acidifying, mixing, ultrasonic, extrusion, stretching, the techniques such as thermal finalization, make its hardness of Graphene composite cable material being prepared from, toughness all can meet the demand of high-voltage dc transmission electrical cables, good environmental protection simultaneously, holistic cost is relatively low, disclosure satisfy that the requirement of industry, there is preferable application prospect.

Description

A kind of Graphene composite cable material and preparation method thereof
Technical field
The present invention relates to composite graphite alkene field of material technology, particularly to a kind of Graphene composite cable material and preparation thereof Method.
Background technology
CABLE MATERIALS is wire cable insulating and the general designation of sheath plastics, using materials such as rubber, plastics, nylon as base Material, makes in conjunction with auxiliary elements such as plasticizer, filler, color masterbatch, antioxidant, and different cable types and use environment are to CABLE MATERIALS Performance have different requirements.
High voltage dc transmission technology is rapidly developed in recent years, be mainly used in that Renewable resource is grid-connected, island with power, The aspects such as submarine cable and Urban Underground cable.And direct current transportation can be the instability such as solar electrical energy generation, wind-power electricity generation Power supply and power system couple together, than ac transmission more advantageously, and direct current transportation has that transmission capacity is big, it is little to be lost, There is no reactive power, be easily controlled and the feature such as regulation, used widely in long distance powedr transmission.And D.C. high voltage transmission Cable is the important component part of direct current transportation, and the quality of cable performance directly affects whole transmission system.And presently commercially available electricity Cable material mostly exists that not damage resistant folds, hardness and toughness can not be taken into account, when burning toxicity more greatly, not humidity cold and heat etc. lack Point, governs safety and the service life of cable.Therefore, the novel balancing performance of research and development, Environmental Safety, practical it is badly in need of CABLE MATERIALS.
Graphene is a kind of two dimensional crystal, and the common graphite of people is by from level to level with the planar carbon of honeycomb-patterned ordered arrangement Atom stacks and is formed, and the interlaminar action power of graphite is more weak, it is easy to peel off mutually, forms very thin graphite flake.When stone After ink sheet shells into monolayer, the monolayer of this only one of which carbon atom thickness is exactly Graphene.Graphene is mankind's known strength The highest material, harder than diamond, taller upper 100 times of iron and steel that strength ratio is the most best.Therefore, how by Graphene It is applied to CABLE MATERIALS, thus improves hardness and the toughness of cable, can solve the problem that material environment friendly by rational proportioning raw materials simultaneously The defect that performance is the best, just seems particularly necessary.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of Graphene composite cable material and preparation method thereof, by adopting It is combined with specified raw material, coordinates corresponding production technology, obtained this Graphene composite cable material, its hardness, toughness All can meet the demand of high-voltage dc transmission electrical cables, good environmental protection simultaneously, holistic cost is relatively low, it is possible to meet wanting of industry Ask, there is preferable application prospect.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of Graphene composite cable material, is prepared by the raw materials in: polyimides emulsion 30-35 part, modified illiteracy take off Soil 25-35 part, high density polyethylene (HDPE) 20-30 part, PEN 15-25 part, silane resin acceptor kh-550 10- 20 parts, Cosan 10-15 part, titanium diboride 8-12 part, glass fibre 8-12 part, citrate 7-10 part, Graphene 5-8 part, Choline alfoscerate 5-8 part, two sub-(3,4-dimethyl) benzyl Sorbitol 2-5 part, dispersant 3-5 part, age resistor 3-5 parts.
Preferably, described dispersant selected from fatty alcohol-polyoxyethylene ether, dimethyl sulfoxide, lauric acid amide of ethanol, six One or more in methyl acid phosphate triamine.
Preferably, described age resistor one in antioxidant MB Z, anti-aging agent RD, antioxidant NBC, the antioxidant A W or Several.
The preparation method of Graphene composite cable material, comprises the following steps:
(1) each raw material is weighed according to weight portion；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 3-5 hour, obtain 450-550 mesh slurry, spraying Being dried to obtain powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, react 5-15 minute, send in mixing roll after drying, add polyimides breast the most successively Liquid, modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 25-30min, and melting temperature is 95- 100 DEG C, add silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyls The mixing 5-10min of Sorbitol；
(4) raw material after mixing being added dispersant, age resistor, and add 20 parts of deionized waters, supersound process 2.5-3h obtains Stock suspension, the frequency of supersound process is 25-30KHz, and the power of supersound process is 1200-1300W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, the temperature of 370-390 DEG C Degree is lower melted, extrudes after filtration, and the rotating speed of double screw extruder is 180-200rpm, and in extrusion, pressure is 15-18kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and stretching ratio is 3.2-3.5 times, finally 280 DEG C of conditions Lower thermal finalization, obtains Graphene composite cable material.
Preferably, in described step (5), filtration specifically carries out vacuum filtration 25-with the nylon leaching film of 450-500 mesh 30min, vacuum pressure is 15-18kPa.
Preferably, in described step (6), the parameter of drawing process is: temperature of heat plate is 75-85 DEG C, and hot plate temperature is 130-135 DEG C, stretching ratio is 3.3 times.
Compared with prior art, it has the beneficial effect that the present invention
(1) the Graphene composite cable material of the present invention is with polyimides emulsion, modified montmorillonoid, high density polyethylene (HDPE), poly-naphthalene two Formic acid glycol ester, silane resin acceptor kh-550, Cosan, titanium diboride, glass fibre, citrate, Graphene, sweet phosphoric acid Choline, two sub-(3,4-dimethyl) benzyl Sorbitols, dispersant, age resistor are raw material, coordinate grinding, spray drying, acid Change, mixing, ultrasonic, extrude, stretch, the technique such as thermal finalization so that its hardness of Graphene composite cable material of being prepared from, toughness All can meet the demand of high-voltage dc transmission electrical cables, good environmental protection simultaneously, holistic cost is relatively low, it is possible to meet wanting of industry Ask, there is preferable application prospect.
(2) the Graphene composite cable material raw material of the present invention be easy to get, technique simple, be suitable to heavy industrialization and use, real Strong by property.
Detailed description of the invention
Below in conjunction with specific embodiment, the technical scheme of invention is described in detail.
Embodiment 1
(1) polyimides emulsion 30 parts, modified montmorillonoid 25 parts, high density polyethylene (HDPE) 20 parts, poly-naphthalenedicarboxylic acid ethylene glycol are weighed Ester 15 parts, silane resin acceptor kh-550 10 parts, Cosan 10 parts, titanium diboride 8 parts, glass fibre 8 parts, citrate 7 parts, Graphene 5 parts, choline alfoscerate 5 parts, two sub-(3,4-dimethyl) benzyl Sorbitols 2 parts, fatty alcohol-polyoxyethylene ether 3 parts, Antioxidant MB Z 3 parts；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 3 hours, obtain 450 mesh slurries, be spray-dried To powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 5 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 25min, and melting temperature is 95 DEG C, adds Silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyl Sorbitols are mixing 5min；
(4) raw material after mixing is added fatty alcohol-polyoxyethylene ether, antioxidant MB Z, and add 20 parts of deionized waters, ultrasonic place Reason 2.5h obtains stock suspension, and the frequency of supersound process is 25KHz, and the power of supersound process is 1200W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 370 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 25min with the nylon leaching film of 450 mesh, and vacuum pressure is 15kPa, double spiral shells The rotating speed of bar extruder is 180rpm, and in extrusion, pressure is 15kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 75 DEG C, hot plate Temperature is 130 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
Embodiment 2
(1) polyimides emulsion 33 parts, modified montmorillonoid 30 parts, high density polyethylene (HDPE) 25 parts, poly-naphthalenedicarboxylic acid ethylene glycol are weighed Ester 20 parts, silane resin acceptor kh-550 15 parts, Cosan 12 parts, titanium diboride 10 parts, glass fibre 10 parts, citrate 9 Part, Graphene 7 parts, choline alfoscerate 7 parts, two sub-(3,4-dimethyl) benzyl Sorbitols 4 parts, dimethyl sulfoxide 4 parts, anti-old Agent RD 4 parts；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 4 hours, obtain 500 mesh slurries, be spray-dried To powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 10 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 28min, and melting temperature is 97 DEG C, adds Silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyl Sorbitols are mixing 7min；
(4) raw material after mixing being added dimethyl sulfoxide, anti-aging agent RD, and add 20 parts of deionized waters, supersound process 3h obtains Stock suspension, the frequency of supersound process is 27KHz, and the power of supersound process is 1250W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 380 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 27min with the nylon leaching film of 500 mesh, and vacuum pressure is 16kPa, double spiral shells The rotating speed of bar extruder is 190rpm, and in extrusion, pressure is 16kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 80 DEG C, hot plate Temperature is 134 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
Embodiment 3
(1) polyimides emulsion 35 parts, modified montmorillonoid 35 parts, high density polyethylene (HDPE) 30 parts, poly-naphthalenedicarboxylic acid ethylene glycol are weighed Ester 25 parts, silane resin acceptor kh-550 20 parts, Cosan 15 parts, titanium diboride 12 parts, glass fibre 12 parts, citrate 10 Part, Graphene 8 parts, choline alfoscerate 8 parts, two sub-(3,4-dimethyl) benzyl Sorbitol 5 parts, lauric acid amide of ethanol 5 Part, antioxidant NBC 5 parts；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 5 hours, obtain 550 mesh slurries, be spray-dried To powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 15 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 30min, and melting temperature is 100 DEG C, then adds Enter silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyl Sorbitols mix Refining 10min；
(4) raw material after mixing is added lauric acid amide of ethanol, antioxidant NBC, and add 20 parts of deionized waters, ultrasonic place Reason 3h obtains stock suspension, and the frequency of supersound process is 30KHz, and the power of supersound process is 1300W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 390 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 30min with the nylon leaching film of 500 mesh, and vacuum pressure is 18kPa, double spiral shells The rotating speed of bar extruder is 200rpm, and in extrusion, pressure is 18kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 85 DEG C, hot plate Temperature is 135 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
Embodiment 4
(1) polyimides emulsion 30 parts, modified montmorillonoid 35 parts, high density polyethylene (HDPE) 20 parts, poly-naphthalenedicarboxylic acid ethylene glycol are weighed Ester 25 parts, silane resin acceptor kh-550 10 parts, Cosan 15 parts, titanium diboride 8 parts, glass fibre 12 parts, citrate 7 parts, Graphene 8 parts, choline alfoscerate 5 parts, two sub-(3,4-dimethyl) benzyl Sorbitols 5 parts, hexamethylphosphoric acid triamide 3 parts, anti- Old agent AW5 part；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 3 hours, obtain 550 mesh slurries, be spray-dried To powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 5 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 30min, and melting temperature is 95 DEG C, adds Silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyl Sorbitols are mixing 10min；
(4) raw material after mixing is added hexamethylphosphoric acid triamide, antioxidant A W, and add 20 parts of deionized waters, supersound process 2.5h obtains stock suspension, and the frequency of supersound process is 30KHz, and the power of supersound process is 1200W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 390 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 30min with the nylon leaching film of 450 mesh, and vacuum pressure is 15kPa, double spiral shells The rotating speed of bar extruder is 200rpm, and in extrusion, pressure is 15kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 85 DEG C, hot plate Temperature is 130 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
Comparative example 1
(1) polyimides emulsion 30 parts, modified montmorillonoid 25 parts, high density polyethylene (HDPE) 20 parts, silane resin acceptor kh-550 are weighed 10 parts, Cosan 10 parts, titanium diboride 8 parts, glass fibre 8 parts, citrate 7 parts, Graphene 5 parts, choline alfoscerate 5 parts, Fatty alcohol-polyoxyethylene ether 3 parts, antioxidant MB Z 3 parts；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 3 hours, obtain 450 mesh slurries, be spray-dried To powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 5 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE) carry out mixing 25min, and melting temperature is 95 DEG C, add silane resin acceptor kh-550, sulfur The mixing 5min of sulphur powder, citrate, choline alfoscerate；
(4) raw material after mixing is added fatty alcohol-polyoxyethylene ether, antioxidant MB Z, and add 20 parts of deionized waters, ultrasonic place Reason 2.5h obtains stock suspension, and the frequency of supersound process is 25KHz, and the power of supersound process is 1200W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 370 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 25min with the nylon leaching film of 450 mesh, and vacuum pressure is 15kPa, double spiral shells The rotating speed of bar extruder is 180rpm, and in extrusion, pressure is 15kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 75 DEG C, hot plate Temperature is 130 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
Comparative example 2
(1) polyimides emulsion 35 parts, modified montmorillonoid 35 parts, high density polyethylene (HDPE) 30 parts, poly-naphthalenedicarboxylic acid ethylene glycol are weighed Ester 25 parts, silane resin acceptor kh-550 20 parts, glass fibre 12 parts, citrate 10 parts, Graphene 8 parts, choline alfoscerate 8 Part, two sub-(3,4-dimethyl) benzyl Sorbitol 5 parts, lauric acid amide of ethanol 5 parts, antioxidant NBCs 5 parts；
(2) Graphene, glass fibre are added suitable quantity of water, grind and within 5 hours, obtain 550 mesh slurries, be spray-dried and obtain powder, Spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, reacts 15 minutes, send in mixing roll after drying, add the most successively polyimides emulsion, Modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 30min, and melting temperature is 100 DEG C, then adds Enter silane resin acceptor kh-550, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyl Sorbitols mixing 10min；
(4) raw material after mixing is added lauric acid amide of ethanol, antioxidant NBC, and add 20 parts of deionized waters, ultrasonic place Reason 3h obtains stock suspension, and the frequency of supersound process is 30KHz, and the power of supersound process is 1300W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, at a temperature of 390 DEG C Melted, to extrude after filtration, filtration is to carry out vacuum filtration 30min with the nylon leaching film of 500 mesh, and vacuum pressure is 18kPa, double spiral shells The rotating speed of bar extruder is 200rpm, and in extrusion, pressure is 18kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and the parameter of drawing process is: temperature of heat plate is 85 DEG C, hot plate Temperature is 135 DEG C, and stretching ratio is 3.3 times, finally thermal finalization under the conditions of 280 DEG C, obtains Graphene composite cable material.
The Graphene composite cable material test result prepared is as shown in table 1.
The Graphene composite cable material of embodiment 1-4 and comparative example 1-2 is carried out performance test respectively.
Table 1
The Graphene composite cable material of the present invention is with polyimides emulsion, modified montmorillonoid, high density polyethylene (HDPE), poly-naphthalenedicarboxylic acid Glycol ester, silane resin acceptor kh-550, Cosan, titanium diboride, glass fibre, citrate, Graphene, sweet phosphoric acid gallbladder Alkali, two sub-(3,4-dimethyl) benzyl Sorbitols, dispersant, age resistor are raw material, coordinate grind, be spray-dried, be acidified, Mixing, ultrasonic, extrude, stretch, the technique such as thermal finalization so that its hardness of Graphene composite cable material, the toughness that are prepared from are equal Can meet the demand of high-voltage dc transmission electrical cables, simultaneously good environmental protection, holistic cost is relatively low, it is possible to meet the requirement of industry, There is preferable application prospect.The Graphene composite cable material raw material of the present invention is easy to get, technique simple, is suitable to heavy industrialization Use, practical.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this Equivalent structure or equivalence flow process that bright description is made convert, or are directly or indirectly used in other relevant technology necks Territory, is the most in like manner included in the scope of patent protection of the present invention.

Claims (6)

1. a Graphene composite cable material, it is characterised in that: it is prepared by the raw materials in: polyimides emulsion 30- 35 parts, modified montmorillonoid 25-35 part, high density polyethylene (HDPE) 20-30 part, PEN 15-25 part, silane coupled Agent KH-550 10-20 part, Cosan 10-15 part, titanium diboride 8-12 part, glass fibre 8-12 part, citrate 7-10 part, Graphene 5-8 part, choline alfoscerate 5-8 part, two sub-(3,4-dimethyl) benzyl Sorbitol 2-5 parts, dispersant 3-5 part, anti- Old agent 3-5 part.
Graphene composite cable material the most according to claim 1, it is characterised in that: described dispersant is selected from poly alkyl alcohol One or more in oxygen vinyl Ether, dimethyl sulfoxide, lauric acid amide of ethanol, hexamethylphosphoric acid triamide.
Graphene composite cable material the most according to claim 1, it is characterised in that: described age resistor selected from antioxidant MB Z, One or more in anti-aging agent RD, antioxidant NBC, antioxidant A W.
4. according to the preparation method of the Graphene composite cable material described in any one of claim 1-3, it is characterised in that include with Lower step:
(1) each raw material is weighed according to weight portion；
(2) Graphene, titanium diboride, glass fibre are added suitable quantity of water, grind and within 3-5 hour, obtain 450-550 mesh slurry, spraying Being dried to obtain powder, spray dryer inlet temperature is 250 DEG C, leaving air temp 180 DEG C；
(3) powder is added nitric acid, react 5-15 minute, send in mixing roll after drying, add polyimides breast the most successively Liquid, modified montmorillonoid, high density polyethylene (HDPE), PEN carry out mixing 25-30min, and melting temperature is 95- 100 DEG C, add silane resin acceptor kh-550, Cosan, citrate, choline alfoscerate, two sub-(3,4-dimethyl) benzyls The mixing 5-10min of Sorbitol；
(4) raw material after mixing being added dispersant, age resistor, and add 20 parts of deionized waters, supersound process 2.5-3h obtains Stock suspension, the frequency of supersound process is 25-30KHz, and the power of supersound process is 1200-1300W；
(5) stock suspension after supersound process is dried, puts into double screw extruder subsequently, the temperature of 370-390 DEG C Degree is lower melted, extrudes after filtration, and the rotating speed of double screw extruder is 180-200rpm, and in extrusion, pressure is 15-18kPa；
(6) raw material after extrusion cools down, and stretches subsequently, and stretching ratio is 3.2-3.5 times, finally 280 DEG C of conditions Lower thermal finalization, obtains Graphene composite cable material.
The preparation method of Graphene composite cable material the most according to claim 4, it is characterised in that: in described step (5) Filtering and specifically carry out vacuum filtration 25-30min with the nylon leaching film of 450-500 mesh, vacuum pressure is 15-18kPa.
6. according to the preparation method of the Graphene composite cable material described in claim 4 or 5, it is characterised in that: described step (6) in, the parameter of drawing process is: temperature of heat plate is 75-85 DEG C, and hot plate temperature is 130-135 DEG C, and stretching ratio is 3.3 times.
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