CN106010148A - Silver-plated graphene, carbon tube and resin compounded high-conductivity coating and preparation method thereof - Google Patents
Silver-plated graphene, carbon tube and resin compounded high-conductivity coating and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a silver-plated graphene, carbon tube and resin compounded high-conductivity coating and a preparation method thereof. The silver-plated graphene, carbon tube and resin compounded high-conductivity coating consists of the following components in parts by mass: 5-15 parts of silver-plated graphene, 1-3 parts of carbon tubes, 20-60 parts of vinyl ester resin, 1-2 parts of a coupling agent, 1-3 parts of a resin paint curing agent and a resin paint catalyst, and 20-60 parts of a diluent, wherein the mass ratio of the resin paint catalyst to the resin paint curing agent is (2-4): 1. The silver-plated graphene, carbon tube and resin compounded high-conductivity coating is a special functional coating with high conductivity and corrosion, heat and weather resistance.
Description
Technical field
The present invention relates to a kind of new function type composite coating, the height of a kind of silvering graphite olefinic carbon pipe composite resin
Electrically-conducting paint and preparation method thereof, belongs to technical field of coatings.
Background technology
Along with the high speed development of modern technologies, various new function paint industry are the most flourish, particularly at certain
A bit such as specific application area such as Aero-Space, Chemical Manufacture, building heat preservation, electromagnetic shielding, energy traffic, a class needs height to lead
Electricity, anticorrosion, the new coating of anti-electromagnetic shielding cause the concern of people the most day by day.
2004,Univ Manchester UKPhysicistAn DeliegaimuWithConstantine's Nuo Woxiao love, become
Merit isolates Graphene from graphite, it was demonstrated that it can be with individualism, and two people obtain 2010 years Nobel's physics the most jointly
Learn prize.Graphene has perfect two dimensional crystal structure, and its lattice is the hexagon surrounded by six carbon atom, and thickness is one
Individual atomic layer.Under room temperature, its electron mobility is more than 15000cm2/V s, resistivity about 10-6Ω cm, than copper or silver more
Low, for the material that world resistivity is minimum.
The electric conductivity of electrically-conducting paint is determined by conductive filler, and therefore the resistivity of filler becomes affects coatings conductive property
Key.At present, conductive filler mainly has metal and nonmetallic material with carbon element, and wherein metal is easier to rotten with soda acid generation electrochemistry
Erosion reaction, and density is big, addition is big, and cost is high, can not meet use requirement.Therefore, by corrosion resistant carbon-based material
The focus of research is become as conductive filler.
At present, Graphene, as a kind of anti-corrosion paint filler, simple composite resin, has applied for some patents of invention,
Such as number of patent application 201310300323.8 and 201210066163.0.But this amount being only merely interpolation about 1% can be done
To obvious anti-corrosion lifting, but electric conductivity is the highest.As electrically-conducting paint, grounding body aspect, only see use Nano graphite powder and use
Apply in anticorrosion, such as number of patent application 201220675957.2.And Graphene is used for grounding body also as conductive anti-corrosion coating
No.In Application No. 201410112165.8, entitled " a kind of grounding body based on conductive nano corrosion-resistant coating " invention
In patent, its using the graphene layer of CVD as conductive film deposits on metallic matrix, there is the biggest defect in this way, becomes
This height, operability is poor, and Graphene depositing base requires, and iron-based is the most improper.
Summary of the invention
For deficiencies of the prior art, it is an object of the invention to provide one and be provided simultaneously with high conductivity, high
High connductivity coating of corrosion resistant silvering graphite olefinic carbon pipe composite resin and preparation method thereof.
The technical scheme is that and be achieved in that:
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin, is made up of each component of following quality proportioning, silvering graphite alkene 5
~ 15 parts；Carbon pipe 1 ~ 3 part；Vinyl ester resin 20 ~ 60 parts；Coupling agent 1 ~ 2 part；Lacquer type organic coating firming agent and lacquer type organic coating catalyst totally 1
~ 3 parts；Wherein lacquer type organic coating catalyst and lacquer type organic coating firming agent mass ratio are 2 ~ 4:1；Diluent 20 ~ 60 parts.
Described silvering graphite alkene prepares as follows,
1) by 1g Graphene ultrasonic disperse in the strong alkali aqueous solution that 1L concentration is 0.2 ~ 1 mol/L, it is then heated to 80 ~ 100
DEG C and keep 0.5 ~ 2 hour, then use clear water washing and filtering, obtain oil removing, roughening after Graphene；
2) graphene dispersion step 1) being filtrated to get is in the sensitizing solution of 1L, then heats 10 ~ 30 points at 20 ~ 55 DEG C
Clock；Described sensitizing solution be concentration be the stannic chloride of 20 ~ 30g/L, the sodium stannate of 4 ~ 7g/L and 50 ~ 150mg/L hydrochloric acid constitute
Deionized water mixed solution；
3) the 2nd) step reaction system adds 0.5 ~ 1.5g activator Palladous chloride. heat 10 ~ 30 minutes at 45 DEG C；
4) reaction system of step 3) is filtered, the filtrate comprising Graphene is distributed to 0.4L concentration be 0.1 ~
In the reducing solution of 0.3mol/L 5 ~ 15 minutes；
5) reaction system of step 4) being filtered, filtrate puts in 500 ~ 1000mL silver ammino solution and is slowly stirred 5 ~ 15 minutes；
In silver ammino solution, ammonia mass fraction is 15 ~ 30%, and in silver ammino solution, silver nitrate concentration is 3.0～25.0g/L, pH be 10.0～
11.0；
6) the 5th) reaction system that obtains of step drips the reducing solution identical with step 4) and amount is the most identical, maintenance temperature 25
~ 30 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, Graphene and silver layer mass ratio are 1:1 ~ 5；Filter i.e.
Obtain silvering graphite alkene.
Described reducing solution is one or more mixed solutions in glucose, sodium potassium tartrate tetrahydrate and tartaric acid.
Described strong alkali aqueous solution is a kind of aqueous solution in sodium hydroxide, potassium hydroxide or the mixed aqueous solution of two kinds.
Described Graphene is 2 ~ 20 micron order sheet footpaths, the Graphene of less than 10 layers；Described carbon pipe is many walls carbon pipe, caliber 5
~ 100nm, pipe range 0.1 ~ 50 μm.
Described coupling agent is silane coupling agent or titanate coupling agent；Described lacquer type organic coating catalyst is blue water, lacquer type organic coating
Firming agent is plain boiled water；Described diluent is styrene.
Described silvering graphite alkene and carbon pipe mass ratio are 10:2 ~ 3.
During preparation, first vinyl ester resin and styrene are hybridly prepared into the vinyl esters tree that mass concentration is 50 ~ 60%
Fat styrene solution；Again by silvering graphite alkene and carbon pipe ultrasonic disperse to vinyl ester resin styrene solution, then add idol
Connection agent, then mixes 2 ~ 4 hours, mix homogeneously in ball milling or sand mill；Lacquer type organic coating catalyst and tree it is sequentially added into after taking-up
Fat paint firming agent, mix homogeneously.
Compared with prior art, there is advantages that
1, because the contact interface resistance of graphene film is big, by the silver-plated electric conductivity that can improve macroscopic material, coordinate simultaneously
High connductivity many walls carbon pipe of rod shape strengthens the connection of conductive network.Compared with existing product, the silvering graphite alkene/carbon pipe of the present invention
The high connductivity coating of compound ethylene base resin possesses high face electric conductivity, and surface resistance is less than 10 below Ω.
2, vinyl ester resin is heat-resisting weather-proof, and the degree of cross linking is high, and hardness is suitable, and viscosity is little, is well suited for the charcoal of compound high imbibition
It is conductive filler, the requirement of high corrosive environment can be met simultaneously.Compared with existing invention, silvering graphite alkene/carbon pipe of the present invention is multiple
The high connductivity coating closing vinylite possesses the strongest decay resistance.
3, the high connductivity preparation method for coating science of the silvering graphite alkene of the present invention/carbon pipe compound ethylene base resin is feasible,
Practice is high, is suitable for the anticorrosion environment of electromagnetic shielding.
4, the high connductivity coating of silvering graphite alkene of the present invention/carbon pipe compound ethylene base resin possesses the ring of the most resistance to 100 DEG C
Border tests, and conducts electricity corrosion resistance and do not decline.
In sum, the silvering graphite alkene of the present invention/carbon pipe compound ethylene base resin high connductivity coating is that one possesses height
Electric conductivity, the heat-resisting weather-proof special functional coating of highly corrosion resistant.
Accompanying drawing explanation
The silvering graphite alkene scanning electron microscope (SEM) photograph of Fig. 1-embodiment 1 preparation.
The silvering graphite alkene scanning electron microscope (SEM) photograph of Fig. 2-embodiment 2 preparation.
(b) salt spray resistance outward appearance after 1000 hours after high connductivity coating sample preparation (a) of Fig. 3-embodiment 1 preparation and encapsulation
Figure.
The preparation flow figure of Fig. 4-silvering graphite alkene of the present invention/carbon pipe compound ethylene base resin high connductivity coating.
Detailed description of the invention
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin of the present invention, is made up of each component of following quality proportioning,
5 ~ 15 parts of silvering graphite alkene；Carbon pipe 1 ~ 3 part；Vinyl ester resin 20 ~ 60 parts；Coupling agent 1 ~ 2 part；Lacquer type organic coating firming agent and resin
Paint catalyst totally 1 ~ 3 part；Wherein lacquer type organic coating catalyst and lacquer type organic coating firming agent mass ratio are 2-4:1；Diluent 20 ~ 60 parts.
Described coupling agent is silane coupling agent or titanate coupling agent；Described lacquer type organic coating catalyst is blue water, lacquer type organic coating
Firming agent is plain boiled water；Described diluent is styrene.
Preferably, described silvering graphite alkene and carbon pipe mass ratio are 10:2 ~ 3.Described carbon pipe is many walls carbon pipe, caliber 5 ~
100nm, pipe range 0.1 ~ 50 μm.
The high connductivity preparation method for coating of silvering graphite olefinic carbon pipe composite resin of the present invention, first by vinyl ester resin and benzene
Ethylene is hybridly prepared into the vinyl ester resin styrene solution that mass concentration is 50 ~ 60%；Silver-plated using as conductive filler again
Graphene and carbon pipe ultrasonic disperse are in vinyl ester resin styrene solution, then add coupling agent, then at ball milling or sand milling
Machine mixes 2-4 hour, mix homogeneously；Being sequentially added into lacquer type organic coating catalyst and lacquer type organic coating firming agent after taking-up, mix homogeneously is i.e.
Can.Its preparation flow sees Fig. 4.
Wherein silvering graphite alkene prepares as follows,
1) by 1g Graphene ultrasonic disperse in the strong alkali aqueous solution that 1L concentration is 0.2 ~ 1 mol/L, it is then heated to 80 ~ 100
DEG C and keep 0.5 ~ 2 hour, then use clear water washing and filtering, obtain oil removing, roughening after Graphene；Described strong alkali aqueous solution
For a kind of aqueous solution in sodium hydroxide, potassium hydroxide or the mixed aqueous solution of two kinds.
2) graphene dispersion step 1) being filtrated to get is in the sensitizing solution of 1L, then heats 10 ~ 30 at 20 ~ 55 DEG C
Minute；Described sensitizing solution be concentration be the stannic chloride of 20 ~ 30g/L, the sodium stannate of 4 ~ 7g/L and 50 ~ 150mg/L hydrochloric acid constitute
Deionized water mixed solution；
3) the 2nd) step reaction system adds 0.5 ~ 1.5g activator Palladous chloride. heat 10 ~ 30 minutes at 45 DEG C；
4) reaction system of step 3) is filtered, the filtrate comprising Graphene is distributed to 0.4L concentration be 0.1 ~
In the reducing solution of 0.3mol/L 5 ~ 15 minutes；
5) reaction system of step 4) being filtered, filtrate puts in 500 ~ 1000mL silver ammino solution and is slowly stirred 5 ~ 15 minutes；
Silver ammino solution is silver nitrateAmmoniaSolution, ammonia mass concentration is 15-30%, is titrated in silver nitrate solution with it, before titration
Silver nitrate concentration is 3.0～25.0g/L, and after titration, system pH value is 10.0 ~ 11.0.
6) the 5th) reaction system that obtains of step drips the reducing solution identical with step 4) and amount is the most identical, remain warm
Spending 25 ~ 30 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, Graphene and silver layer mass ratio are 1:1 ~ 5；Cross
Filter and i.e. obtain silvering graphite alkene.
Described reducing solution is one or more mixed solutions in glucose, sodium potassium tartrate tetrahydrate and tartaric acid.
Described Graphene is 2 ~ 20 micron order sheet footpaths, the Graphene of less than 10 layers；
The present invention, when Graphene is silver-plated, is by graphene dispersion good for sensitization to reductant solution, when the most ultrasonic one section
Filter after between, the Graphene slurry filtered is distributed to a period of time in silver ammino solution so that graphenic surface is the slowest
Plating last layer silver particles.Then reducing agent is dripped according still further to certain proportion and speed.Now because graphenic surface has had
Nano silver particles does nucleus, the silver-plated uniformity and silver preferential deposition rate and substantially increases.Although this method reduction rate is slow,
But waste is few, and coating is firm.Can also be by graphene dispersion good for sensitization to silver ammino solution, then by molten for the reducing agent for preparing
Liquid is added drop-wise in silver ammino solution with speed according to a certain percentage.This reduction rate is fast, but waste is many, and many silver revert to container
On wall.
A silvering graphite alkene given below specifically prepare embodiment: by 100g Graphene ultrasonic disperse at 0.5mol/L
1L sodium hydrate aqueous solution in, then heat 80 ~ 100 DEG C keep 1 hour, then use clear water washing and filtering.Then go with 1L
The stannic chloride of ionized water preparation 20 ~ 30g/L, 6g/L sodium stannate, the mixed solution of 100mg/L hydrochloric acid cooks sensitizing solution.Will filter out
The graphene dispersion come, in sensitizing solution, heat 45 DEG C and reaches 20 minutes, then adds 1g Palladous chloride. and continues to heat 20 minutes.Then will
Graphene dispersion after filtration in glucose reducing solution 10 minutes, then filters in input 500 ~ 1000ml silver ammino solution
(wherein the mass fraction of ammonia is 25%, the silver nitrate solution pH to 10.0～11.0 of regulation 3.0～25.0g/L) is slow
Stir 10 minutes.Finally drip the reducing solution of mixing, and maintain 25 ~ 30 DEG C, until uniformly plating last layer light on Graphene
The silver layer that silver lustre is white.
Below by embodiment and test result, the present invention is described in further detail.
Embodiment 1
First silvering graphite alkene the most processed:
By 10g Graphene ultrasonic disperse in the 0.5L aqueous solution of the sodium hydroxide of 0.5mol/L, then heating 80 DEG C holding 1 is little
Time, then use clear water washing and filtering.Then with the stannic chloride of 0.5L deionized water preparation 30g/L, 6g/L sodium stannate, 50mg/L salt
The mixed solution of acid (30%) cooks sensitizing solution.By in graphene dispersion to sensitizing solution, heat 45 DEG C and reach 20 minutes, then add 0.5g
Palladous chloride. continues heating 20 minutes.Then the graphene dispersion after filtering is to the 20g/L glucose of 200ml and 200ml
In 30g/L sodium potassium tartrate tetrahydrate mixing reducing solution 10 minutes, then filter and put into (the wherein matter of ammonia in 800ml silver ammino solution
Amount mark 25%, the silver nitrate solution pH to 10.5 of regulation 30.5g/L) it is slowly stirred 10 minutes.Finally drip the reduction of mixing
Solution, and maintain 28 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, filter and i.e. obtain silvering graphite alkene.
Fig. 1 is the silvering graphite alkene scanning electron microscope (SEM) photograph of embodiment 1 preparation.
Then prepare composite electrically-conducting paint, make as follows:
By in silvering graphite alkene and 5g carbon pipe elder generation ultrasonic disperse to the vinyl ester resin styrene solution of the 60% of 110g, then add
Add 1.5g titanate coupling agent, then mix 2.5 hours in ball milling or sand mill, be uniformly dispersed.Isooctyl acid is added after taking-up
Cobalt 4g stirs, and is subsequently adding 1g methyl ethyl ketone peroxide and stirs, obtains electrically-conducting paint.
Being sprayed to by electrically-conducting paint on steel disc matrix, spontaneous curing i.e. can get high conductive coating after 4 hours.By prepared
Sample uses cross cut test method, carries out adhesive force test by GB/T9286 1998, and sample is according to GB/T10125 2012 simultaneously
Carrying out salt spray test, result is as shown in table 1.
The high connductivity coating property test result of table 1 silvering graphite alkene/carbon pipe compound ethylene base resin
| Project | Salt spray resistance 1000h | Impact strength/cm | Adhesive force/level | Surface drying time/h | Do solid work the time/h | Surface resistance/Ω |
| Result | Intact | 50 | 1 | 4 | 24 | 9.0 |
Fig. 3 is steel disc sample preparation (a) and the envelope of the high connductivity coating of silvering graphite alkene/carbon pipe compound ethylene base resin prepared by this example
(b) salt spray resistance outside drawing after 1000 hours after dress.By figure it is found that high connductivity anticorrosive paint prepared by the present invention is passing through
After 1000 hours standard salt spray tests, bubble-free, variable color and obscission, antiseptic property is excellent.
Embodiment 2
First silvering graphite alkene the most processed:
By 12g Graphene ultrasonic disperse in the 0.5L aqueous solution of the potassium hydroxide of 0.5mol/L, then heating 80 DEG C holding 1 is little
Time, then use clear water washing and filtering.Then with the stannic chloride of 0.5L deionized water preparation 30g/L, 6g/L sodium stannate, 50mg/L salt
The mixed solution of acid (30%) cooks sensitizing solution.By in graphene dispersion to sensitizing solution, heat 45 DEG C and reach 20 minutes, then add 0.5g
Palladous chloride. continues heating 20 minutes.Then the graphene dispersion after filtering is to (wherein the quality of ammonia is divided in 800ml silver ammino solution
Several 25%, the silver nitrate solution pH to 11 of regulation 15.5g/L) it is slowly stirred 10 minutes.Last dropwise dropping 40g/L Soluble tartar.
Sodium mixing reducing solution, and maintain 38 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, filter and i.e. obtain plating
Silver Graphene.Fig. 2 is the silvering graphite alkene scanning electron microscope (SEM) photograph of embodiment 2 preparation.
Then prepare composite electrically-conducting paint, make as follows:
By in silvering graphite alkene and 5g carbon pipe elder generation ultrasonic disperse to the vinyl ester resin styrene solution of the 60% of 110g, then add
Add 1.5g titanate coupling agent, then mix 2.5 hours in ball milling or sand mill, be uniformly dispersed.Isooctyl acid is added after taking-up
Cobalt 3g stirs, and is subsequently adding 1g methyl ethyl ketone peroxide and stirs, obtains electrically-conducting paint.Then
Being sprayed to by electrically-conducting paint on steel disc matrix, spontaneous curing i.e. can get high conductive coating after 4 hours.By prepared sample
Using cross cut test method, carry out adhesive force test by GB/T9286 1998, sample is carried out according to GB/T10125 2012 simultaneously
Salt spray test, result is as shown in table 2.
The high connductivity coating property test result of table 2 silvering graphite alkene/carbon pipe compound ethylene base resin
| Project | Salt spray resistance 1000h | Impact strength/cm | Adhesive force/level | Surface drying time/h | Do solid work the time/h | Surface resistance/Ω |
| Result | Intact | 45 | 1 | 5 | 24 | 8.8 |
The coating property indices of result display embodiment 2 preparation is superior.
Embodiment 3
First silvering graphite alkene the most processed:
By 12g Graphene ultrasonic disperse in the 0.5L aqueous solution of the potassium hydroxide of 0.5mol/L, then heating 80 DEG C holding 1 is little
Time, then use clear water washing and filtering.Then with the stannic chloride of 0.5L deionized water preparation 30g/L, 6g/L sodium stannate, 50mg/L salt
The mixed solution of acid (30%) cooks sensitizing solution.By in graphene dispersion to sensitizing solution, heat 45 DEG C and reach 20 minutes, then add 0.5g
Palladous chloride. continues heating 20 minutes.Then the graphene dispersion after filtering is to the 20g/L glucose of 200ml and 300ml
In 30g/L sodium potassium tartrate tetrahydrate mixing reducing solution 10 minutes, then filter and put into (the wherein matter of ammonia in 1000ml silver ammino solution
Amount mark 25%, the silver nitrate solution pH to 10.5 of regulation 20.5g/L) it is slowly stirred 10 minutes.Finally drip the reduction of mixing
Solution, and maintain 28 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, filter and i.e. obtain silvering graphite alkene.
Then prepare composite electrically-conducting paint, make as follows:
By in silvering graphite alkene and 5g carbon pipe elder generation ultrasonic disperse to the vinyl ester resin styrene solution of the 60% of 110g, then add
Add 1.5g titanate coupling agent, then mix 2.5 hours in ball milling or sand mill, be uniformly dispersed.Isooctyl acid is added after taking-up
Cobalt 3g stirs, and is subsequently adding 1g methyl ethyl ketone peroxide and stirs, obtains electrically-conducting paint.
Being sprayed to by electrically-conducting paint on steel disc matrix, spontaneous curing i.e. can get high conductive coating after 4 hours.By prepared
Sample uses cross cut test method, carries out adhesive force test by GB/T9286 1998, and sample is according to GB/T10125 2012 simultaneously
Carrying out salt spray test, result is as shown in table 3.
The high connductivity coating property test result of table 3 silvering graphite alkene/carbon pipe compound ethylene base resin
| Project | Salt spray resistance 1000h | Impact strength/cm | Adhesive force/level | Surface drying time/h | Do solid work the time/h | Surface resistance/Ω |
| Result | Intact | 50 | 1 | 5 | 24 | 7.8 |
The coating property indices of result display embodiment 3 preparation is superior.
The above embodiment of the present invention is only for example of the present invention is described, and is not the embodiment party to the present invention
The restriction of formula.For those of ordinary skill in the field, can also be made other on the basis of the above description different
The change of form and variation, cannot give exhaustive to all of embodiment here.Every belong to technical scheme institute
That amplifies out obviously changes or changes the row still in protection scope of the present invention.
Claims (8)
1. the high connductivity coating of silvering graphite olefinic carbon pipe composite resin, it is characterised in that: by each component structure of following quality proportioning
Become, 5 ~ 15 parts of silvering graphite alkene；Carbon pipe 1 ~ 3 part；Vinyl ester resin 20 ~ 60 parts；Coupling agent 1 ~ 2 part；Lacquer type organic coating firming agent and
Lacquer type organic coating catalyst totally 1 ~ 3 part；Wherein lacquer type organic coating catalyst and lacquer type organic coating firming agent mass ratio are 2 ~ 4:1；Diluent 20 ~ 60
Part.
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 1, it is characterised in that: described plating
Silver Graphene prepares as follows,
1) by 1g Graphene ultrasonic disperse in the strong alkali aqueous solution that 1L concentration is 0.2 ~ 1mol/L, it is then heated to 80 ~ 100 DEG C
And keep 0.5 ~ 2 hour, then use clear water washing and filtering, obtain the Graphene after oil removing, roughening；
2) graphene dispersion step 1) being filtrated to get is in the sensitizing solution of 1L, then heats 10 ~ 30 points at 20 ~ 55 DEG C
Clock；Described sensitizing solution be concentration be the stannic chloride of 20 ~ 30g/L, the sodium stannate of 4 ~ 7g/L and 50 ~ 150mg/L hydrochloric acid constitute
Deionized water mixed solution；
3) the 2nd) step reaction system adds 0.5 ~ 1.5g activator Palladous chloride. heat 10 ~ 30 minutes at 45 DEG C；
4) reaction system of step 3) is filtered, the filtrate comprising Graphene is distributed to 0.4L concentration be 0.1 ~
In the reducing solution of 0.3mol/L 5 ~ 15 minutes；
5) reaction system of step 4) being filtered, filtrate puts in 500 ~ 1000mL silver ammino solution and is slowly stirred 5 ~ 15 minutes；
In silver ammino solution, ammonia mass fraction is 15 ~ 30%, and in silver ammino solution, silver nitrate concentration is 3.0～25.0g/L, pH be 10.0～
11.0；
6) the 5th) reaction system that obtains of step drips the reducing solution identical with step 4) and amount is the most identical, maintenance temperature 25
~ 30 DEG C, until the silver layer that on Graphene, uniformly plating last layer light is silvery white, Graphene and silver layer mass ratio are 1:1 ~ 5；Filter i.e.
Obtain silvering graphite alkene.
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 2, it is characterised in that: described also
Original solution is one or more mixed solutions in glucose, sodium potassium tartrate tetrahydrate and tartaric acid.
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 2, it is characterised in that: described by force
Aqueous alkali is a kind of aqueous solution in sodium hydroxide, potassium hydroxide or the mixed aqueous solution of two kinds.
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 2, it is characterised in that: described stone
Ink alkene is 2 ~ 20 micron order sheet footpaths, the Graphene of less than 10 layers；Described carbon pipe is many walls carbon pipe, caliber 5 ~ 100nm, pipe range 0.1
~50μm。
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 1, it is characterised in that: described idol
Connection agent is silane coupling agent or titanate coupling agent；Described lacquer type organic coating catalyst is blue water, and lacquer type organic coating firming agent is plain boiled water；Institute
Stating diluent is styrene.
The high connductivity coating of silvering graphite olefinic carbon pipe composite resin the most according to claim 1, it is characterised in that: described plating
Silver Graphene is 10:2 ~ 3 with carbon pipe mass ratio.
8. the high connductivity preparation method for coating of silvering graphite olefinic carbon pipe composite resin described in claim 6, it is characterised in that: first will
Vinyl ester resin and styrene are hybridly prepared into the vinyl ester resin styrene solution that mass concentration is 50 ~ 60%；Again will plating
Silver Graphene and carbon pipe ultrasonic disperse are in vinyl ester resin styrene solution, then add coupling agent, then at ball milling or sand
Grinding machine mixes 2 ~ 4 hours, mix homogeneously；Lacquer type organic coating catalyst and lacquer type organic coating firming agent, mix homogeneously it is sequentially added into after taking-up
?.
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| CN106010148B (en) | 2018-03-27 |
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