CN108373660A - A kind of conductive ink and preparation method thereof - Google Patents
A kind of conductive ink and preparation method thereof Download PDFInfo
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- CN108373660A CN108373660A CN201810448265.6A CN201810448265A CN108373660A CN 108373660 A CN108373660 A CN 108373660A CN 201810448265 A CN201810448265 A CN 201810448265A CN 108373660 A CN108373660 A CN 108373660A
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/52—Electrically conductive inks
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- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
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Abstract
The present invention relates to a kind of conductive inks and preparation method thereof.Conductive ink is mainly made of nano-cellulose, carbon material, binder and solvent, and by weight, 1~10 part of 0.01~1 part of nano-cellulose, 0.5~10 part of carbon material and binder.Preparation method is：In a solvent by nano-cellulose and carbon material dispersion, dispersion liquid is obtained, binder is then added thereto, stirring, milled processed obtain the conductive ink by being filtered to remove precipitation later.The conductive ink of the present invention is that dopen Nano cellulose forms in carbon material, the addition of nano-cellulose improves dispersing characteristic of the carbon material in conductive ink, improve the electric conductivity of conductive ink, have adjusted the viscosity of ink, improve its film forming, to improve the printing applicability of ink, higher electric conductivity and film forming are shown.
Description
Technical field
The present invention relates to field of material technology, more particularly, to a kind of conductive ink and preparation method thereof.
Background technology
With the generation of modern printed electronics, inkjet printing technology is greatly paid close attention to, and the system of conductive ink
Standby is one of the part of most critical in ink-jet printing technology, and conductive filler be the key that determine conductive ink electric conductivity because
Element.Classify by conductive filler, conductive ink can be divided into three categories：Organic and inorganic and composite material.Organic refers mainly to high score
Subsystem, inorganic include metal system and carbon system, and metal system includes the inorganic nano-particles such as gold, silver, copper, and carbon system includes carbon black, stone
Ink, carbon nanotube, carbon fiber and its mixture.
With the continuous development of science and technology, electronic equipment is just gradually to environment-friendly type, economizing type, low-cost type and length
The durable type of time changes, so traditional polymer electrolyte and metal mold all do not adapt to the development need in epoch, carbon system gradually
Conductive ink just gradually show the advantage of its own.Carbon series conductive ink price is relatively inexpensive, but electric conductivity and moisture-proof compared with
Difference is only used for the low product printing of conduction needs.
Typical fillers in conventional carbon system electrically conductive ink include carbon black, graphite and carbon fiber etc., conductivity with carbon kind
Class changes and changes, and there is at low cost, light, performance to stablize, and acid and alkali-resistance and chemical solvent corrosion, ink adhesion are strong after solidification
The advantages that.However, the electric conductivity of carbon black, graphite and carbon fiber cannot be satisfied the growth requirement of the following printed electronic industry.
Therefore, it is necessary to study a kind of ink of high conductivity and preparation method thereof.
In view of this, special propose the present invention.
Invention content
The first object of the present invention is to provide a kind of conductive ink, which is that dopen Nano is fine in carbon material
Dimension element forms, and the addition of nano-cellulose improves dispersing characteristic of the carbon material in conductive ink, improves conductive ink
Electric conductivity has adjusted the viscosity of ink, improves its film forming, to improve the printing applicability of ink, shows higher
Electric conductivity and film forming.
The second object of the present invention is to provide the preparation method of above-mentioned conductive ink, and the preparation method is at normal temperatures and pressures
It can carry out, and flow is simple, not be related to complex device, therefore easily industrialization promotion.
In order to achieve the goal above, the present invention provides following technical schemes：
A kind of conductive ink is mainly made of nano-cellulose, carbon material, binder and solvent, and by weight,
1~10 part of 0.01~1 part of nano-cellulose, 0.5~10 part of carbon material and binder.
Difference lies in be doped with a certain proportion of nanofiber to the present invention in the ink with conventional carbon series conductive ink
Element, and skin effect, dimensional effect, superelevation be strong, super good characteristics such as flexible since nano-cellulose has, Ke Yizeng
Add carbon material in the dispersion degree of solvent and the stabilization of dispersion, makes it be not easy to precipitate or be separated, therefore, avoid
Lead to problems such as electric conductivity reduce since dispersion is uneven, cause ink adhesive force low since dispersion is unstable.
After tested, the electric conductivity of conductive ink provided by the invention improves 20% than not adding the ink of nano-cellulose
More than, adhesive force improves 50% or more.
Carbon material of the present invention refers to the arbitrary carbon material that this field can be used for conductive ink, for example, carbon black, graphite,
It is one or more in carbon nanotube, carbon fiber and grapheme material.
The above conductive ink selection and proportioning etc., can also make it is following optimize, to improve comprehensive performance, specifically such as
Under.
Preferably, by weight, 0.01~0.1 part of nano-cellulose, 0.5~5 part of carbon material and binder 5~10
Part.
Preferably, 5~20nm of diameter of the nano-cellulose, draw ratio are >=200.
Preferably, the carbon material includes at least grapheme material.
Preferably, in the conductive ink content of grapheme material be 0.5~5wt%, such as 0.5~1wt%, 1~
5wt%, 0.5~2wt%, 0.5~3wt% etc..
Preferably, the grapheme material is single-layer graphene, bilayer graphene, multi-layer graphene, modified graphene, oxygen
One or more combinations in graphite alkene, redox graphene and biomass graphene, preferred single layer graphene, bilayer
One or more combinations in graphene and multi-layer graphene.
Preferably, the average platelet thickness of the grapheme material be 0.34~10nm, such as 0.34~3nm, 0.34~
5nm, 0.34~8nm, 3~5nm, 3~8nm, 5~10nm etc..
Preferably, the carbon material includes at least carbon nanotube；The type of the carbon nanotube is arbitrary, such as single wall
One or both of carbon nanotube and multi-walled carbon nanotube combine.
Preferably, in the conductive ink content of carbon nanotube be 0.5~5wt%, such as 0.5~1wt%, 1~
5wt%, 0.5~2wt%, 0.5~3wt% etc..
Preferably, the carbon material includes at least grapheme material and carbon nanotube；
Preferably, in the conductive ink, the mass ratio of grapheme material and carbon nanotube is 5:1~1:5, preferably 2:1
~1:2.
Preferably, the content of grapheme material and carbon nanotube is respectively 0.5~5wt% in the conductive ink, 0.5~
5wt%.
Preferably, the binder is polyvinyl alcohol, acrylic resin, phenolic resin, epoxy resin, alkyd resin, gathers
One kind in ester resin, polyurethane resin and organic siliconresin, preferred acrylic resins, more preferable water-based acrylic resin
Joncryl@678, SK6454, HD2535 etc..
Preferably, the solvent mixes for one or both of water and alcohol, the preferred lower alcohol of alcohol, such as C1~C5
Alcohol, such as the one or several kinds in ethyl alcohol, normal propyl alcohol and isopropanol.
Preferably, the solvent is the combination of water and alcohol, the mixing of more preferable water and ethyl alcohol.
Preferably, the solvent is water and ethyl alcohol with 10:1~1:10 volume ratio mixing.
Preferably, the carbon material is one kind or more in carbon black, graphite, carbon nanotube, carbon fiber and grapheme material
Kind.
Preferably, in the conductive ink, the mass ratio of nano-cellulose and carbon material is 1:5~1:50, carbon material with
The mass ratio of binder is preferably 1:2~5:1.
The preparation method of conductive ink described above mainly include disperse, stir, filtering these processes, preferably according to
It is prepared by lower step：
In a solvent by nano-cellulose and carbon material dispersion, dispersion liquid is obtained, binder is then added thereto, later
Stirring, milled processed obtain the conductive ink by being filtered to remove precipitation.
Wherein, dispersion efficiency and dispersion effect can be improved in conjunction with means such as stirring, emulsifications when preparing dispersion liquid.
Preferably, the condition of the stirring is：1000~1500rpm stirs 10-60min.
Preferably, described to be by the process of nano-cellulose and carbon material dispersion in a solvent：
Respectively in a solvent by nano-cellulose and carbon material dispersion, the dispersion liquid and carbon material of nano-cellulose are obtained
Dispersion liquid, then by the two mixing；
Preferably, the method by the two mixing is：Ultrahigh speed decentralized processing 5-30min；
Preferably, a concentration of 0.01~1wt% of the dispersion liquid of the nano-cellulose, more preferable 0.05~0.5wt%.
Preferably, the nano-cellulose is obtained by mode of the cellulosic material through mechanically and/or chemically mechanical treatment.
Preferably, the cellulosic material includes furfural dregs, bleached wood pulp, bleaching straw pulp, cotton pulp, dissolving pulp, secondary fibre
Dimension, do not float wood pulp, do not float the agricultural wastes of straw pulp and stalk in any one or at least two combination.
Preferably, the mechanical treatment includes ball milling, mill, sand milling, high pressure homogenizer, ultrasonic disruption machine and mortar powder
In broken any one or at least two combination；
Preferably, the dispersion liquid of the carbon material is a concentration of：0.5~10wt%, more preferable 1~3wt%.
In addition, if these carbon materials, are preferably scattered in solvent, then by when containing various carbon materials in conductive ink respectively
It is mixed again.Meanwhile in order to improve the dispersion degree of carbon material in a solvent, it is proposed that be separately added into part Nanowire in dispersion
Tie up the dispersion liquid of element.
Preferably, the method for the grinding is：It is ground using ball mill or grinder.
To sum up, compared with prior art, invention achieves following technique effects：
(1) lower-cost nano-cellulose is mixed, the low problem of existing carbon system ink electric conductivity is not only solved, and
Also improve the performances such as stability, film forming, intensity, the consistency of ink；
(2) good characteristic for utilizing nano-cellulose and graphene, provides a kind of graphene conductive ink, compared to existing
Graphene ink adhesive force, intensity, the performance enhancements such as consistency；
(3) compound carbon system ink is made using grapheme material and carbon nanotube, comprehensive performance more competes excellent
Gesture；
(4) accompanying chemical agent that the present invention uses is few, only relates to binder, therefore cost reduction, and the feature of environmental protection improves；
(5) preparation method of the invention can carry out at normal temperatures and pressures, and flow is simple, is not related to complex device,
Therefore easily industrialization promotion will play extremely important effect in RFID antenna and art of printed circuit boards.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with specific implementation mode, but ability
Field technique personnel will be understood that following described embodiments are some of the embodiments of the present invention, instead of all the embodiments,
It is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.The person that is not specified actual conditions in embodiment, carries out according to conventional conditions or manufacturer's recommended conditions.Agents useful for same or instrument
Production firm person is not specified, is the conventional products that can be obtained by commercially available purchase.
The type for the grapheme material that following embodiment of the present invention is provided has：
Graphene A：Using patent application publication number, " cellulose is that raw material prepares biomass graphene for CN104724699A
Method " in embodiment 1 method be made.
Graphene B：" the model of Changzhou No.6 Element Material Technology Co., Ltd.'s production：The reinforced stone of SE1430 "
Black alkene series.
Embodiment 1
Raw material dosage：1.5 grams of 0.1 gram of nano-cellulose, A1 grams of graphene, 0.5 gram of carbon nanotube and binder.
1) nano-cellulose dispersion liquid, is prepared：
Nano-cellulose slurry is added to the mixed liquor (volume ratio 1 of water and ethyl alcohol:1) in, mulser superelevation is carried out
Fast decentralized processing 5min, is then allowed to stand 1h, and the content of nano-cellulose is 0.5wt% in gained dispersion liquid.
The diameter 5-20nm of the nano-cellulose, draw ratio are >=200.
2) graphene dispersing solution, is prepared：
Graphene A is dispersed in water, is stirred evenly, a concentration of 2wt% of grapheme material in gained dispersion liquid.
3) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 2wt%.
4) in, 2) being added to 1) with the dispersion liquid 3) obtained in nano-cellulose dispersion liquid, ultrahigh speed point is carried out again
Processing 5min is dissipated, mixed solution is obtained.
5) binder-acrylic resin Joncryl@678, are added to mixed solution in 4), 1500rpm stirs 10min, so
Ball-milling treatment 1h is carried out afterwards.
6) solution obtained, 5) is subjected to 1000rpm rotating speeds centrifugal treating 5 minutes；Precipitation is removed, obtained upper layer is molten
Liquid is high concentration graphene conductive ink.
Embodiment 2
The embodiment and embodiment 1 are specific as follows difference lies in not carbon nanotubes.
Raw material dosage：1.5 grams of 0.1 gram of nano-cellulose, A1 grams of graphene and binder.
1) nano-cellulose dispersion liquid, is prepared：
Nano-cellulose slurry is added in the mixed liquor of water and ethyl alcohol (volume ratio 1：1) mulser superelevation, is carried out
Fast decentralized processing 5min, is then allowed to stand 1h, and the content of nano-cellulose is 0.5wt% in gained dispersion liquid.
The diameter 5-20nm of the nano-cellulose, draw ratio are >=200.
2) graphene dispersing solution, is prepared：
Graphene A is dispersed in water, is stirred evenly, a concentration of 2wt% of grapheme material in gained dispersion liquid.
3) it in, being added to the dispersion liquid 2) obtained 1) in nano-cellulose dispersion liquid, carries out at ultrahigh speed dispersion again
5min is managed, mixed solution is obtained.
4) binder-acrylic resin Joncryl@678, are added to mixed solution in 3), 1500rpm stirs 10min, so
Ball-milling treatment 1h is carried out afterwards.
5) solution obtained, 4) is subjected to 1000rpm rotating speeds centrifugal treating 2 minutes；Precipitation is removed, obtained upper layer is molten
Liquid is high concentration graphene conductive ink.
Embodiment 3
It is specific as follows with embodiment 1 difference lies in not graphene-containing A.
Raw material dosage：1.5 grams of 0.1 gram of nano-cellulose, 1.5 grams of carbon nanotube and binder.
1) nano-cellulose dispersion liquid, is prepared：
Nano-cellulose slurry is added in the mixed liquor of water and ethyl alcohol (volume ratio 1：1) mulser superelevation, is carried out
Fast decentralized processing 5min, is then allowed to stand 1h, and the content of nano-cellulose is 0.5wt% in gained dispersion liquid.
The diameter 5-20nm of the nano-cellulose, draw ratio are >=200.
2) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 2wt%.
3) it in, being added to the dispersion liquid 2) obtained 1) in nano-cellulose dispersion liquid, carries out at ultrahigh speed dispersion again
5min is managed, mixed solution is obtained.
4) binder-acrylic resin Joncryl@678, are added to mixed solution in 3), 1500rpm stirs 10min, so
Ball-milling treatment 1h is carried out afterwards.
5) solution obtained, 4) is subjected to 1000rpm rotating speeds centrifugal treating 5 minutes；Precipitation is removed, obtained upper layer is molten
Liquid is high concentration graphene conductive ink.
Embodiment 4
It is specific as follows from embodiment 1 difference lies in graphene type used is different.
Raw material dosage：1.5 grams of 0.1 gram of nano-cellulose, B1 grams of graphene, 0.5 gram of carbon nanotube and binder.
1) nano-cellulose dispersion liquid, is prepared：
Nano-cellulose slurry is added in the mixed liquor of water and ethyl alcohol (volume ratio 1：1) mulser superelevation, is carried out
Fast decentralized processing 5min, is then allowed to stand 1h, and the content of nano-cellulose is 0.5wt% in gained dispersion liquid.
The diameter 5-20nm of the nano-cellulose, draw ratio are >=200.
2) graphene dispersing solution, is prepared：
Graphene B is dispersed in water, is stirred evenly, a concentration of 2wt% of grapheme material in gained dispersion liquid.
3) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 0.2wt%.
4) in, 2) being added to 1) with the dispersion liquid 3) obtained in nano-cellulose dispersion liquid, ultrahigh speed point is carried out again
Processing 5-30min is dissipated, mixed solution is obtained.
5) binder-acrylic resin SK6454,1500rpm, is added to mixed solution in 4) and stirs 10min, then into
Row ball-milling treatment 1h.
6) solution obtained, 5) is subjected to 1000rpm rotating speeds centrifugal treating 5 minutes；Precipitation is removed, obtained upper layer is molten
Liquid is high concentration graphene conductive ink.
Embodiment 5
It is specific as follows from embodiment 1 difference lies in the proportioning of raw material is different.
Raw material dosage：10 grams of 1 gram of nano-cellulose, A5 grams of graphene, 1 gram of carbon nanotube and binder.
The preparation method is the same as that of Example 1.
Embodiment 6
It is specific as follows from embodiment 1 difference lies in the proportioning of raw material is different.
Raw material dosage：6 grams of 1 gram of nano-cellulose, A1 grams of graphene, 5 grams of carbon nanotube and binder.
The preparation method is the same as that of Example 1.
Embodiment 7-8
That difference lies in types of binder is different from embodiment 1, and acrylic resin is replaced with to aqueous polyurethane PU- respectively
3406 (embodiments 7), epoxy resin IKOTE 3510-W-60A (embodiment 8), the preparation method is the same as that of Example 1.
Embodiment 9
From embodiment 1 difference lies in carbon material type is different, the present embodiment, which is equivalent to, replaces the carbon nanotube of embodiment 1
It is changed to carbon black, but the addition of the two is identical, preparation method is identical.
Embodiment 10
That difference lies in preparation processes is different from embodiment 1, specific as follows：
Raw material dosage：1.5 grams of 0.1 gram of nano-cellulose, A1 grams of graphene, 0.5 gram of carbon nanotube and binder.
1) nano-cellulose dispersion liquid, is prepared：
Nano-cellulose slurry is added in the mixed liquor of water and ethyl alcohol (volume ratio 1：1) mulser superelevation, is carried out
Fast decentralized processing 30min, is then allowed to stand 4h, and the content of nano-cellulose is 0.1wt% in gained dispersion liquid.
The diameter 5-20nm of the nano-cellulose, draw ratio are >=200.
2) graphene dispersing solution, is prepared：
Graphene A is dispersed in water, is stirred evenly, a concentration of 0.5-3wt% of grapheme material in gained dispersion liquid.
3) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 2wt%.
4) in, 2) being added to 1) with the dispersion liquid 3) obtained in nano-cellulose dispersion liquid, ultrahigh speed point is carried out again
Processing 30min is dissipated, mixed solution is obtained.
5) binder-acrylic resin Joncryl@678, are added to mixed solution in 4), 1500rpm stirs 60min, so
Ball-milling treatment 5h is carried out afterwards.
6) solution obtained, 5) is subjected to 4000rpm rotating speeds centrifugal treating 2 minutes；Precipitation is removed, obtained upper layer is molten
Liquid is high concentration graphene conductive ink.
Embodiment 11
That difference lies in solvent dosages is different from embodiment 1, when preparing nano-cellulose dispersion liquid, be added quantity of solvent compared with
Few, a concentration of 1wt% of nano-cellulose, other process conditions are identical in gained dispersion liquid.
Embodiment 12
That difference lies in solvent dosages is different from embodiment 1, and when preparing graphene dispersing solution, it is less to be added quantity of solvent,
A concentration of 3wt% of graphene, other process conditions are identical in gained dispersion liquid.
Embodiment 13
That difference lies in solvent dosages is different from embodiment 1, when preparing carbon nano tube dispersion liquid, be added quantity of solvent compared with
Few, a concentration of 5wt% of carbon nanotube, other process conditions are identical in gained dispersion liquid.
Embodiment 14
It is 3 from embodiment 1 difference lies in water when dispersion of nanofibers element is different with the volume ratio of ethyl alcohol：1.
Comparative example 1
With reference to the formula and preparation method of the embodiment 4 in CN 106519804A patent applications, conductive ink is made, and
And use test condition test product performance same as the present invention.
Comparative example 2
Difference lies in no addition nano-celluloses with embodiment 1, and increase water for substituting nano-cellulose
Quality, it is specific as follows.
Raw material dosage：1.5 grams of A1 grams of graphene, 0.5 gram of carbon nanotube and binder.
1) graphene dispersing solution, is prepared：
Graphene A is dispersed in water, is stirred evenly, a concentration of 0.5-3wt% of grapheme material in gained dispersion liquid.
2) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 2wt%.
3) it, 1) will be mixed with the dispersion liquid 2) obtained, carry out ultrahigh speed decentralized processing 5-30min again, it is molten to obtain mixing
Liquid.
4) binder-acrylic resin Joncryl@678, are added to mixed solution in 3), 1500rpm stirs 10min, so
Ball-milling treatment 1h is carried out afterwards.
5) solution obtained, 4) is subjected to 1000-4000rpm rotating speed centrifugal treatings 2-5 minutes；Precipitation is removed, is obtained
Upper solution be high concentration graphene conductive ink.
Comparative example 3
Difference lies in no addition nano-celluloses with embodiment 1, and the quality for increasing graphene A is received for substituting
The quality of rice cellulose, it is specific as follows.
Raw material dosage：, 1.5 grams of A1.1 grams of graphene, 0.5 gram of carbon nanotube and binder.
1) graphene dispersing solution, is prepared：
Graphene A is dispersed in water, is stirred evenly, a concentration of 0.2wt% of grapheme material in gained dispersion liquid.
2) carbon nano tube dispersion liquid, is prepared：
Single-walled carbon nanotube is dispersed in the water of surplus, is stirred evenly, the concentration of carbon nanotube in gained dispersion liquid
For 0.2wt%.
3) it, 1) will be mixed with the dispersion liquid 2) obtained, carry out ultrahigh speed decentralized processing 5-30min again, it is molten to obtain mixing
Liquid.
4) binder-acrylic resin Joncryl@678, are added to mixed solution in 3), 1500rpm stirs 10min, so
Ball-milling treatment 1h is carried out afterwards.
5) solution obtained, 4) is subjected to 1000rpm rotating speed centrifugal treatings 2-5 minutes；Precipitation is removed, obtained upper layer
Solution is high concentration graphene conductive ink.
The performance of ink obtained by all of above embodiment and comparative example is as shown in table 1.
The performance of 1 ink of table
Note：
Test method：
1, resistance：The graphene conductive ink of preparation is added to ink-jet printer, carries out multiple inkjet printing, it is natural
It is tested using the square resistance test equipment 280SI of 4D companies of the U.S. after drying, obtains square resistance data.
2, viscosity：The graphene conductive ink of preparation is used into viscosity tester number YD/SNB-A tested viscosities.
3, adhesive force：The graphene conductive ink of preparation is added to ink-jet printer, carries out multiple inkjet printing, from
It is so covered with a blank sheet of paper after drying, and puts the counterweight that a quality is 100g, gently twitched from one end of blank sheet of paper,
Back and forth several times, according to the adhesive force for falling the effect of ink situation and judging ink of each sample, series (+) is bigger, shows that the adhesive force of ink is got over
It is good.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of conductive ink, which is characterized in that be mainly made, and press of nano-cellulose, carbon material, binder and solvent
Parts by weight meter, 1~10 part of 0.01~1 part of nano-cellulose, 0.5~10 part of carbon material and binder.
2. conductive ink according to claim 1, which is characterized in that the carbon material includes at least grapheme material；
Preferably, the content of grapheme material is 0.5~5wt% in the conductive ink；
Preferably, the grapheme material is single-layer graphene, bilayer graphene, multi-layer graphene, modified graphene, oxidation stone
One or more combinations in black alkene, redox graphene and biomass graphene, preferred single layer graphene, double-layer graphite
One or more combinations in alkene and multi-layer graphene；
Preferably, the average platelet thickness of the grapheme material is 0.34~10nm；
Preferably, 5~20nm of diameter of the nano-cellulose, draw ratio are >=200.
3. conductive ink according to claim 1, which is characterized in that the carbon material includes at least carbon nanotube；
Preferably, the content of carbon nanotube is 0.5~5wt% in the conductive ink.
4. conductive ink according to claim 1, which is characterized in that the carbon material includes at least grapheme material and carbon
Nanotube；
Preferably, in the conductive ink, the mass ratio of grapheme material and carbon nanotube is 5:1~1:5, preferably 2:1~1:
2；
Preferably, the content of grapheme material and carbon nanotube is respectively 0.5~5wt% in the conductive ink, 0.5~
5wt%.
5. according to claim 1-4 any one of them conductive inks, which is characterized in that the binder is polyvinyl alcohol, phenol
One kind in urea formaldehyde, acrylic resin, epoxy resin, alkyd resin, polyester resin, polyurethane resin and organic siliconresin,
Preferred acrylic resins, more preferable water-based acrylic resin.
6. conductive ink according to claim 1, which is characterized in that the solvent is water, ethyl alcohol, normal propyl alcohol and isopropanol
In one or several kinds, the preferably mixing of water and ethyl alcohol；
Preferably, the carbon material is one or more in carbon black, graphite, carbon nanotube, carbon fiber and grapheme material.
7. conductive ink according to claim 1, which is characterized in that in the conductive ink, nano-cellulose and carbon materials
The mass ratio of material is 1:5~1:50, the mass ratio of carbon material and binder is preferably 1:2~5:1.
8. the preparation method of claim 1-7 any one of them conductive inks, which is characterized in that include the following steps：
In a solvent by nano-cellulose and carbon material dispersion, dispersion liquid is obtained, binder is then added thereto, stirs later
It mixes, milled processed, by being filtered to remove precipitation, obtains the conductive ink；
Preferably, the condition of the stirring is：1000~1500rpm stirs 10~60min.
9. preparation method according to claim 8, which is characterized in that it is described nano-cellulose and carbon material are dispersed in it is molten
Process in agent is：
Respectively in a solvent by nano-cellulose and carbon material dispersion, the dispersion of the dispersion liquid and carbon material of nano-cellulose is obtained
Liquid, then by the two mixing；
Preferably, the method by the two mixing is：5~30min of ultrahigh speed decentralized processing；
Preferably, a concentration of 0.01~1wt% of the dispersion liquid of the nano-cellulose, more preferable 0.05~0.5wt%；
Preferably, the dispersion liquid of the carbon material is a concentration of：0.5~10wt%, more preferable 1~3wt%.
10. preparation method according to claim 8, which is characterized in that the method for the grinding is：Using ball mill or grind
Grinding machine is ground.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810448265.6A CN108373660A (en) | 2018-05-11 | 2018-05-11 | A kind of conductive ink and preparation method thereof |
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| CN201810448265.6A CN108373660A (en) | 2018-05-11 | 2018-05-11 | A kind of conductive ink and preparation method thereof |
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| CN110117440A (en) * | 2019-05-10 | 2019-08-13 | 齐鲁工业大学 | A kind of conductive ink and preparation method thereof |
| CN110216877A (en) * | 2019-06-13 | 2019-09-10 | 宁波石墨烯创新中心有限公司 | Airbrush, direct write former, ink and preparation method thereof, patterned structures forming method |
| CN110551421A (en) * | 2019-10-12 | 2019-12-10 | 湖南工业大学 | Carbon-based conductive ink and preparation method and application thereof |
| CN110849514A (en) * | 2019-10-15 | 2020-02-28 | 杭州电子科技大学 | High-performance rGO/CNF force electric sensor and preparation method thereof |
| CN111793387A (en) * | 2019-04-08 | 2020-10-20 | 九度(上海)化学有限公司 | Graphene thermal foaming ink and preparation method and application thereof |
| WO2020239143A1 (en) * | 2019-05-27 | 2020-12-03 | 华侨大学 | Graphene conductive ink and preparation method therefor |
| CN113354855A (en) * | 2021-06-07 | 2021-09-07 | 牛墨石墨烯应用科技有限公司 | Bendable electrothermal film device based on graphene and preparation method thereof |
| CN113563760A (en) * | 2021-07-22 | 2021-10-29 | 桂林清研皓隆新材料有限公司 | Electrothermal ink, preparation method thereof and electrothermal product |
| CN114276713A (en) * | 2021-12-10 | 2022-04-05 | 江南大学 | High-conductivity water-based graphene ink and preparation method thereof |
| CN114958094A (en) * | 2022-06-09 | 2022-08-30 | 四川大学 | Water-based MXene nano cellulose-based functional ink and preparation method and application method thereof |
| CN115939389A (en) * | 2022-11-24 | 2023-04-07 | 福建蓝海黑石新材料科技有限公司 | Conductive material composition, conductive paste, and preparation method and application thereof |
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| CN111793387A (en) * | 2019-04-08 | 2020-10-20 | 九度(上海)化学有限公司 | Graphene thermal foaming ink and preparation method and application thereof |
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| CN110216877A (en) * | 2019-06-13 | 2019-09-10 | 宁波石墨烯创新中心有限公司 | Airbrush, direct write former, ink and preparation method thereof, patterned structures forming method |
| CN110551421A (en) * | 2019-10-12 | 2019-12-10 | 湖南工业大学 | Carbon-based conductive ink and preparation method and application thereof |
| CN110849514A (en) * | 2019-10-15 | 2020-02-28 | 杭州电子科技大学 | High-performance rGO/CNF force electric sensor and preparation method thereof |
| CN110849514B (en) * | 2019-10-15 | 2021-09-28 | 杭州电子科技大学 | High-performance rGO/CNF force electric sensor and preparation method thereof |
| CN113354855B (en) * | 2021-06-07 | 2022-11-15 | 牛墨石墨烯应用科技有限公司 | Bendable electrothermal film device based on graphene and preparation method thereof |
| CN113354855A (en) * | 2021-06-07 | 2021-09-07 | 牛墨石墨烯应用科技有限公司 | Bendable electrothermal film device based on graphene and preparation method thereof |
| CN113563760A (en) * | 2021-07-22 | 2021-10-29 | 桂林清研皓隆新材料有限公司 | Electrothermal ink, preparation method thereof and electrothermal product |
| CN114276713A (en) * | 2021-12-10 | 2022-04-05 | 江南大学 | High-conductivity water-based graphene ink and preparation method thereof |
| CN114958094A (en) * | 2022-06-09 | 2022-08-30 | 四川大学 | Water-based MXene nano cellulose-based functional ink and preparation method and application method thereof |
| CN114958094B (en) * | 2022-06-09 | 2023-03-10 | 四川大学 | Water-system MXene nanocellulose-based functional ink and preparation method and application method thereof |
| CN115939389A (en) * | 2022-11-24 | 2023-04-07 | 福建蓝海黑石新材料科技有限公司 | Conductive material composition, conductive paste, and preparation method and application thereof |
| CN115939389B (en) * | 2022-11-24 | 2024-03-15 | 福建蓝海黑石新材料科技有限公司 | Conductive material composition, conductive paste, and preparation method and application thereof |
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