CN106077608A - A kind of graphene-supported metallic composite and preparation method thereof - Google Patents

A kind of graphene-supported metallic composite and preparation method thereof Download PDF

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CN106077608A
CN106077608A CN201610423597.XA CN201610423597A CN106077608A CN 106077608 A CN106077608 A CN 106077608A CN 201610423597 A CN201610423597 A CN 201610423597A CN 106077608 A CN106077608 A CN 106077608A
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parts
powder
graphene
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metallic composite
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黄润翔
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Suzhou Hongke Metal Product Co Ltd
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Suzhou Hongke Metal Product Co Ltd
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    • B22F1/0003
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/10Sintering only
    • B22F3/1017Multiple heating or additional steps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/04Making non-ferrous alloys by powder metallurgy
    • C22C1/05Mixtures of metal powder with non-metallic powder
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C27/00Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
    • C22C27/04Alloys based on tungsten or molybdenum
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C30/00Alloys containing less than 50% by weight of each constituent
    • C22C30/02Alloys containing less than 50% by weight of each constituent containing copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • B22F2998/10Processes characterised by the sequence of their steps

Abstract

The invention discloses a kind of graphene-supported metallic composite, it is prepared by the raw materials in: natural flake graphite 25 35 parts, sodium nitrate 5 10 parts, 35 parts of potassium permanganate, sodium borohydride 48 parts, hydrazine hydrate 25 parts, Polyethylene Glycol 9 15 parts, three oxidation four ferrum 26 parts, Nickel dichloride. 13 parts, stannic chloride 13 parts, potassium borate 59 parts, tungsten powder 15 25 parts, nikel powder 5 15 parts, copper powder 39 parts, magnesium powder 48 parts, aluminium powder 35 parts, sodium selenite 27 parts, curing receives 26 parts, Firebrake ZB 57 parts, Zirconium tetrafluoride. 38 parts, polyvinyl alcohol 6 10 parts, denaturant 35 parts, heat stabilizer 5 10 parts.The graphene-supported metallic composite being prepared from, its mechanical strength height, good heat conductivity, electron mobility are big.Meanwhile, corresponding preparation method is also disclosed.

Description

A kind of graphene-supported metallic composite and preparation method thereof
Technical field
The present invention relates to technical field of metal, particularly to a kind of graphene-supported metallic composite and system thereof Preparation Method.
Background technology
Along with the development of modern science and technology, this year, carbon nanomaterial has caused the concern of every subjects.Since 2004 University of Manchester utilizes mechanical stripping method to obtain Graphene one first, and it is always in carbon nanomaterial the focus of research. Graphene is with sp by carbon atom2The monoatomic layer that hydridization connects is constituted, and is also called " mono-layer graphite sheet ", and its theoretic throat is only 0.35nm, be at present seen by the thinnest two-dimensional material.And Graphene is the elementary cell constituting other carbon nanomaterials.Stone The theoretical specific area of ink alkene is high, and mechanical strength is high, good heat conductivity, and electron transport ability is strong, and it is excellent that electron mobility is big etc. Point.So Graphene is excellent carrier or the ingredient of many materials.
Graphene and metal material are combined the Metal/grapheme composite that obtains can in conjunction with both advantages, one Aspect Graphene can make metal material be uniformly dispersed, stable;On the other hand electric transmission rate can be strengthened, it is provided that composite Overall performance.Just because of the good characteristic of Metal/grapheme composite, this material modified electrode, electrochmical power source, Solaode, catalyst and the aspect such as pharmaceutical carrier and gas sensor have a wide range of applications.So this grinds Study carefully and be intended to research a kind of novel graphene-supported metallic composite of discovery, to expect to have in various new technology fields Significant progress and application prospect.
Summary of the invention
For solving above-mentioned technical problem, the present invention provides a kind of graphene-supported metallic composite and preparation side thereof Method, by using specified raw material to be combined, coordinates corresponding production technology, has obtained a kind of graphene-supported metal composite Material, its mechanical strength height, good heat conductivity, electron mobility are big, it is possible to meet the requirement of industry, before having preferably application Scape.
The purpose of the present invention can be achieved through the following technical solutions:
Graphene-supported metallic composite, is prepared by the raw materials in: natural flake graphite 25-35 part, nitric acid Sodium 5-10 part, potassium permanganate 3-5 part, sodium borohydride 4-8 part, hydrazine hydrate 2-5 part, Polyethylene Glycol 9-15 part, three oxidation four ferrum 2-6 Part, Nickel dichloride. 1-3 part, stannic chloride 1-3 part, potassium borate 5-9 part, tungsten powder 15-25 part, nikel powder 5-15 part, copper powder 3-9 part, magnesium powder 4-8 part, aluminium powder 3-5 part, sodium selenite 2-7 part, curing receive 2-6 part, Firebrake ZB 5-7 part, Zirconium tetrafluoride. 3-8 part, polyvinyl alcohol 6-10 part, denaturant 3-5 part, heat stabilizer 5-10 part.
Preferably, described denaturant is selected from para hydroxybenzene amine, paranitrophenol, aminopropyl triethoxysilane, six Asias One or more in tetramine.
Preferably, described heat stabilizer is selected from dioctyl adipate, propylene glycol methyl ether acetate, double isooctyl mercaptoacetate One or more in dioctyltin, double acrylic acid fourth diester.
The preparation method of described graphene-supported metallic composite, comprises the following steps:
(1) each raw material is weighed according to weight portion;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 3-5 hour with the speed of 1000-1500 rev/min, send into high temperature furnace pre-burning, calcined temperature is 300-450 DEG C, burn-in time is 2-3 hour;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Changing in nickel, stannic chloride, potassium borate, denaturant, heat stabilizer addition ultrasonator, under conditions of 50kHz, 220W, dispersion is all Even, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 250-300 DEG C, and outlet temperature is 150-180 DEG C, obtains granular material, then crosses 20 mesh Sieve;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 20-30 minute;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product.
Preferably, being sintered to vacuum-sintering in step (7), vacuum is 1.5 × 10-1Pa, sintering temperature is 950- 1000 DEG C, sintering time is 2-3 hour.
Compared with prior art, it has the beneficial effect that the present invention
(1) the graphene-supported metallic composite of the present invention is with natural flake graphite, tungsten powder, nikel powder, copper powder, magnesium powder, aluminum Powder is main component, by adding sodium selenite, curing and receiving, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol, sodium nitrate, permanganic acid Potassium, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, Nickel dichloride., stannic chloride, potassium borate, denaturant, heat stabilizers, It is aided with the techniques such as high-temperature calcination, stirring ball-milling, ultrasonic disperse, drying and screening, pressing mold cooling, sintering, machine-shaping so that preparation Graphene-supported metallic composite, its mechanical strength height, good heat conductivity, electron mobility are big, it is possible to meet The requirement of industry, has preferable application prospect.
(2) the graphene-supported metallic composite cheaper starting materials of the present invention, technique simply, are suitable to heavy industrialization Use, practical.
Detailed description of the invention
Below in conjunction with specific embodiment, the technical scheme of invention is described in detail.
Embodiment 1
(1) natural flake graphite 25 parts, sodium nitrate 5 parts, 3 parts of potassium permanganate, sodium borohydride 4 parts, hydrazine hydrate 2 parts, poly-second are weighed Glycol 9 parts, three oxidation four ferrum 2 parts, Nickel dichloride. 1 part, stannic chloride 1 part, potassium borate 5 parts, tungsten powder 15 parts, nikel powder 5 parts, copper powder 3 parts, Magnesium powder 4 parts, aluminium powder 3 parts, sodium selenite 2 parts, curing receive 2 parts, Firebrake ZB 5 parts, Zirconium tetrafluoride. 3 parts, polyvinyl alcohol 6 parts, to hydroxyl Base aniline 3 parts, dioctyl adipate 5 parts;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 3 hours with the speed of 1000 revs/min, send into high temperature furnace pre-burning, calcined temperature is 300 DEG C, and burn-in time is 2 hours;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Change in nickel, stannic chloride, potassium borate, para hydroxybenzene amine, dioctyl adipate addition ultrasonator, in the condition of 50kHz, 220W Under be uniformly dispersed, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 250 DEG C, and outlet temperature is 150 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 20 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 950 DEG C, and sintering time is 2 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
Embodiment 2
(1) natural flake graphite 28 parts, sodium nitrate 7 parts, 4 parts of potassium permanganate, sodium borohydride 5 parts, hydrazine hydrate 3 parts, poly-second are weighed Glycol 11 parts, three oxidation four ferrum 3 parts, Nickel dichloride. 2 parts, stannic chloride 2 parts, potassium borate 7 parts, tungsten powder 19 parts, nikel powder 8 parts, copper powders 5 Part, magnesium powder 5 parts, aluminium powder 4 parts, sodium selenite 3 parts, curing receive 3 parts, Firebrake ZB 6 parts, Zirconium tetrafluoride. 4 parts, polyvinyl alcohol 7 parts, right Nitrophenol 4 parts, propylene glycol methyl ether acetate 7 parts;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 3.5 hours with the speed of 1200 revs/min, send into high temperature furnace pre-burning, calcined temperature is 350 DEG C, burn-in time It it is 2.4 hours;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Change in nickel, stannic chloride, potassium borate, paranitrophenol, propylene glycol methyl ether acetate addition ultrasonator, at 50kHz, 220W Under the conditions of be uniformly dispersed, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 270 DEG C, and outlet temperature is 160 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 23 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 970 DEG C, and sintering time is 2.3 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
Embodiment 3
(1) natural flake graphite 32 parts, sodium nitrate 8 parts, 4 parts of potassium permanganate, sodium borohydride 7 parts, hydrazine hydrate 4 parts, poly-second are weighed Glycol 13 parts, three oxidation four ferrum 5 parts, Nickel dichloride. 2 parts, stannic chloride 2 parts, potassium borate 7 parts, tungsten powder 22 parts, nikel powder 12 parts, copper powders 8 Part, magnesium powder 6 parts, aluminium powder 4 parts, sodium selenite 6 parts, curing receive 5 parts, Firebrake ZB 6 parts, Zirconium tetrafluoride. 7 parts, polyvinyl alcohol 9 parts, ammonia Propyl-triethoxysilicane 4 parts, Imarcaptoacetate dioctyltin 9 parts;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 4 hours with the speed of 1400 revs/min, send into high temperature furnace pre-burning, calcined temperature is 400 DEG C, and burn-in time is 2.8 hour;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Change nickel, stannic chloride, potassium borate, aminopropyl triethoxysilane, Imarcaptoacetate dioctyltin addition ultrasonic vibration In device, it is uniformly dispersed under conditions of 50kHz, 220W, obtains mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 290 DEG C, and outlet temperature is 170 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 28 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 980 DEG C, and sintering time is 2.8 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
Embodiment 4
(1) natural flake graphite 35 parts, sodium nitrate 10 parts, 5 parts of potassium permanganate, sodium borohydride 8 parts, hydrazine hydrate 5 parts, poly-second are weighed Glycol 15 parts, three oxidation four ferrum 6 parts, Nickel dichloride. 3 parts, stannic chloride 3 parts, potassium borate 9 parts, tungsten powder 25 parts, nikel powder 15 parts, copper powders 9 Part, magnesium powder 8 parts, aluminium powder 5 parts, sodium selenite 7 parts, curing receive 6 parts, Firebrake ZB 7 parts, Zirconium tetrafluoride. 8 parts, polyvinyl alcohol 10 parts, Hexamethylenetetramine 5 parts, double acrylic acid fourth diester 10 parts;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 5 hours with the speed of 1500 revs/min, send into high temperature furnace pre-burning, calcined temperature is 450 DEG C, and burn-in time is 3 hours;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Change in nickel, stannic chloride, potassium borate, hexamethylenetetramine, double acrylic acid fourth diester addition ultrasonator, at 50kHz, 220W Under the conditions of be uniformly dispersed, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 300 DEG C, and outlet temperature is 180 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 30 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 1000 DEG C, and sintering time is 3 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
Comparative example 1
(1) natural flake graphite 25 parts, sodium nitrate 5 parts, hydrazine hydrate 2 parts, Polyethylene Glycol 9 parts, three oxidation four ferrum 2 parts, chlorine are weighed Change 1 part of nickel, stannic chloride 1 part, potassium borate 5 parts, tungsten powder 15 parts, magnesium powder 4 parts, aluminium powder 3 parts, sodium selenite 2 parts, curing receive 2 parts, Firebrake ZB 5 parts, Zirconium tetrafluoride. 3 parts, polyvinyl alcohol 6 parts, para hydroxybenzene amine 3 parts, dioctyl adipate 5 parts;
(2) by tungsten powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add blending tank, with The speed of 1000 revs/min stirs 3 hours, sends into high temperature furnace pre-burning, and calcined temperature is 300 DEG C, and burn-in time is 2 hours;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, Nickel dichloride., stannic chloride, potassium borate, Para hydroxybenzene amine, dioctyl adipate add in ultrasonator, be uniformly dispersed, mixed under conditions of 50kHz, 220W Slip;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 250 DEG C, and outlet temperature is 150 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 20 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 950 DEG C, and sintering time is 2 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
Comparative example 2
(1) natural flake graphite 35 parts, 5 parts of potassium permanganate, sodium borohydride 8 parts, Polyethylene Glycol 15 parts, three oxidation four ferrum 6 are weighed Part, Nickel dichloride. 3 parts, stannic chloride 3 parts, potassium borate 9 parts, tungsten powder 25 parts, nikel powder 15 parts, copper powder 9 parts, magnesium powder 8 parts, aluminium powder 5 parts, sub- Sodium selenate 7 parts, curing receive 6 parts, Firebrake ZB 7 parts, polyvinyl alcohol 10 parts, hexamethylenetetramine 5 parts, double acrylic acid fourth diester 10 Part;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, polyvinyl alcohol add mixing Tank, stirs 5 hours with the speed of 1500 revs/min, sends into high temperature furnace pre-burning, and calcined temperature is 450 DEG C, and burn-in time is 3 hours;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, potassium permanganate, sodium borohydride, Polyethylene Glycol, three oxidation four ferrum, Nickel dichloride., stannic chloride, boron Acid potassium, hexamethylenetetramine, double acrylic acid fourth diester add in ultrasonator, and under conditions of 50kHz, 220W, dispersion is all Even, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 300 DEG C, and outlet temperature is 180 DEG C, obtains granular material, then crosses 20 mesh sieves;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 30 minutes;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product, be sintered to true Empty sintering, vacuum is 1.5 × 10-1Pa, sintering temperature is 1000 DEG C, and sintering time is 3 hours.
The performance test results of the graphene-supported metallic composite prepared is as shown in table 1.
The graphene-supported metallic composite of embodiment 1-4 and comparative example 1-2 is carried out tensile strength, heat conduction respectively The test of the performance such as coefficient, electron mobility.
Table 1
  Tensile strength (MPa) Heat conductivity (W.m<sup>-3</sup>.K<sup>-1</sup>) Electron mobility (cm<sup>2</sup>.v<sup>-1</sup>.s<sup>-1</sup>)
Embodiment 1 1260 5300 14600
Embodiment 2 1300 5400 15000
Embodiment 3 1310 5200 14800
Embodiment 4 1320 5500 15100
Comparative example 1 460 2700 8900
Comparative example 2 540 2850 9200
The graphene-supported metallic composite of the present invention with natural flake graphite, tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder is Main component, by adding sodium selenite, curing and receiving, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol, sodium nitrate, potassium permanganate, boron Sodium hydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, Nickel dichloride., stannic chloride, potassium borate, denaturant, heat stabilizers, be aided with height The techniques such as temperature calcining, stirring ball-milling, ultrasonic disperse, drying and screening, pressing mold cooling, sintering, machine-shaping so that be prepared from Graphene-supported metallic composite, its mechanical strength height, good heat conductivity, electron mobility are big, it is possible to meet industry Requirement, has preferable application prospect.The graphene-supported metallic composite cheaper starting materials of the present invention, technique are simple, suitable Use in heavy industrialization, 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 (5)

1. a graphene-supported metallic composite, it is characterised in that: it is prepared by the raw materials in: natural scale Graphite 25-35 part, sodium nitrate 5-10 part, potassium permanganate 3-5 part, sodium borohydride 4-8 part, hydrazine hydrate 2-5 part, Polyethylene Glycol 9-15 Part, three oxidation four ferrum 2-6 parts, Nickel dichloride. 1-3 part, stannic chloride 1-3 part, potassium borate 5-9 part, tungsten powder 15-25 part, nikel powder 5-15 Part, copper powder 3-9 part, magnesium powder 4-8 part, aluminium powder 3-5 part, sodium selenite 2-7 part, curing receive 2-6 part, Firebrake ZB 5-7 part, fluorination Zirconium 3-8 part, polyvinyl alcohol 6-10 part, denaturant 3-5 part, heat stabilizer 5-10 part.
Graphene-supported metallic composite the most according to claim 1, it is characterised in that: described denaturant is selected from One or more in para hydroxybenzene amine, paranitrophenol, aminopropyl triethoxysilane, hexamethylenetetramine.
Graphene-supported metallic composite the most according to claim 1, it is characterised in that: described heat stabilizer is selected from In dioctyl adipate, propylene glycol methyl ether acetate, Imarcaptoacetate dioctyltin, double acrylic acid fourth diester one Plant or several.
4. according to the preparation method of the arbitrary described graphene-supported metallic composite of claim 1-3, it is characterised in that Comprise the following steps:
(1) each raw material is weighed according to weight portion;
(2) by tungsten powder, nikel powder, copper powder, magnesium powder, aluminium powder, sodium selenite, curing are received, Firebrake ZB, Zirconium tetrafluoride., polyvinyl alcohol add Entering blending tank, stir 3-5 hour with the speed of 1000-1500 rev/min, send into high temperature furnace pre-burning, calcined temperature is 300-450 DEG C, burn-in time is 2-3 hour;
(3) again the mixture after preheating is added in ball mill, adds the isopropanol of mixture weight 20%, carry out ball Mill processes, and obtains powder mixture;
(4) by natural flake graphite, sodium nitrate, potassium permanganate, sodium borohydride, hydrazine hydrate, Polyethylene Glycol, three oxidation four ferrum, chlorine Changing in nickel, stannic chloride, potassium borate, denaturant, heat stabilizer addition ultrasonator, under conditions of 50kHz, 220W, dispersion is all Even, obtain mixed slurry;
(5) powder mixture that step (3) obtains is added in the mixed slurry that step (4) obtains, is stirring evenly and then adding into Spray drying tower, inlet temperature is 250-300 DEG C, and outlet temperature is 150-180 DEG C, obtains granular material, then crosses 20 mesh Sieve;
(6) it is compressing that mould put into by the material after sieving, and is directly placed in the cryostat of-30 DEG C cold by the material after molding But 20-30 minute;
(7) molding materials after sub-cooled is sintered, is cooled to room temperature after having sintered, obtains finished product.
Preparation method the most according to claim 4, it is characterised in that be sintered to vacuum-sintering, vacuum in step (7) It is 1.5 × 10-1Pa, sintering temperature is 950-1000 DEG C, and sintering time is 2-3 hour.
CN201610423597.XA 2016-06-15 2016-06-15 A kind of graphene-supported metallic composite and preparation method thereof Pending CN106077608A (en)

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Cited By (2)

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CN108470625A (en) * 2018-01-29 2018-08-31 广东明路电力电子有限公司 Micropore conduction sheet electrodes and its processing technology
CN112687873A (en) * 2020-12-23 2021-04-20 湖南永盛新材料股份有限公司 Preparation method of high-specific-energy lithium battery

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CN103157809A (en) * 2013-02-05 2013-06-19 西南科技大学 Preparation method of graphene/metal nanoparticle composite material with sandwich structure
CN103934471A (en) * 2014-04-11 2014-07-23 同济大学 Method for preparing graphene carrying tin-nickel nano-alloy particle composite material
CN104028269A (en) * 2014-06-20 2014-09-10 南京工业大学 Graphene loaded metal nano composite material, and preparation method and application thereof
CN104711443A (en) * 2015-03-18 2015-06-17 上海和伍新材料科技有限公司 Graphene/copper composite and preparation method thereof

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CN101992303A (en) * 2010-10-29 2011-03-30 江苏大学 Method for preparing graphene/Ni nano composite material
CN103157809A (en) * 2013-02-05 2013-06-19 西南科技大学 Preparation method of graphene/metal nanoparticle composite material with sandwich structure
CN103934471A (en) * 2014-04-11 2014-07-23 同济大学 Method for preparing graphene carrying tin-nickel nano-alloy particle composite material
CN104028269A (en) * 2014-06-20 2014-09-10 南京工业大学 Graphene loaded metal nano composite material, and preparation method and application thereof
CN104711443A (en) * 2015-03-18 2015-06-17 上海和伍新材料科技有限公司 Graphene/copper composite and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108470625A (en) * 2018-01-29 2018-08-31 广东明路电力电子有限公司 Micropore conduction sheet electrodes and its processing technology
CN112687873A (en) * 2020-12-23 2021-04-20 湖南永盛新材料股份有限公司 Preparation method of high-specific-energy lithium battery

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