CN110204963A - Transparent conductive ink, preparation method and application - Google Patents
Transparent conductive ink, preparation method and application Download PDFInfo
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- CN110204963A CN110204963A CN201910547852.5A CN201910547852A CN110204963A CN 110204963 A CN110204963 A CN 110204963A CN 201910547852 A CN201910547852 A CN 201910547852A CN 110204963 A CN110204963 A CN 110204963A
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- C—CHEMISTRY; METALLURGY
- 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
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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- C—CHEMISTRY; METALLURGY
- 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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- Wood Science & Technology (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Conductive Materials (AREA)
Abstract
The invention discloses a kind of transparent conductive inks, including following component in parts by weight: 30~70 parts of one-dimensional metal nanowire dispersion, 0.1~2 part of resin, 0.1~2 part of thickener, 0.001~0.1 part of levelling agent and 30~70 parts of deionized water.Transparent conductive ink provided by the invention can effectively improve the mobility of one-dimensional metal nano wire, eliminate wire drawing phenomenon existing for existing printing transparent conductive film, the uniformity of film is greatly improved, the dispersing uniformity and stability of one-dimensional metal nano wire in transparent conductive ink are also greatly improved.In addition, transparent conductive ink is printed on substrate by the present invention by roll-to-roll mode of printing, it can also directly prepare and graphical, high lead high saturating transparent conductive film.
Description
Technical field
The present invention relates to the production technical fields of transparent conductive film more particularly to a kind of suitable for the saturating of roll-to-roll printing
Bright electrically conductive ink, preparation method and application.
Background technique
Transparent conductive film has hair application extensively in fields such as touch screen, intelligent glass, solar battery, electromagnetic shieldings.
Traditional ITO material have the defects that it is fatal, it is frangible, it is difficult to flexibility；Essential element indium is rare metal, with the increasing of dosage
Add the rapid increase that can bring price, brings huge cost pressure.
As the flexibility of touch screen, demand in large size increase, traditional ito thin film is difficult to meet application demand.
Many panel vendors, research institute, colleges and universities begin one's study the alternative materials of ITO thus.One-dimensional metal nanometer is based in numerous materials
The transparent conductive film best performance of line becomes the most popular material of substitution ITO.
It currently based on the one-dimensional metal nano wire transparent conductive film overwhelming majority is prepared using the method for coating, is coated with
The transparent conductive film of preparation need to could be used for touch screen by etch patterning, and coating head relies primarily on external import fee
With valuableness, the higher cost of transparent conductive film is eventually led to.
Using nano-silver thread as the one-dimensional metal nano-material of representative because its very little line footpath (usually tens nanometer) its
There is good photopermeability.Simultaneously as its longer wire length (the usually hundreds of microns in tens of roads), mutual is overlapping
Good conductive network can be formed, is the ideal material for preparing flexible transparent conductive film to have higher electric conductivity
Material.But due to general tens microns of the wire length of one-dimensional metal nano material or even several hundred microns, such large scale makes one-dimensional
Mobility of the metal nano material in pure solvent is very poor, and printing plate transmits ink by ink cell, micro- there are twenties between ink cell
The leader of rice supports doctor, due to leader presence this requires one-dimensional metal nano-silver threads in ink to have it is preferable
Mobility, the transparent conductive film otherwise printed can have the uniformity and aesthetics that silk thread seriously affects film.In order to pass through
Aforementioned mode of printing prepare no silk thread uniform, high transmittance, it is high lead, the transparent conductive film of low haze, in addition to requiring one
Vygen metal nanometer material also requires ink to have suitable viscosity, surface tension, wave outside having preferable mobility in ink
Speed etc. is sent out, these all can generate large effect to the quality of film.And this also has become the difficulty that this field craving solves
Topic.
Summary of the invention
The main purpose of the present invention is to provide a kind of transparent conductive ink, preparation method and applications, existing to overcome
Deficiency in technology.
For realization aforementioned invention purpose, the technical solution adopted by the present invention includes:
The embodiment of the invention provides a kind of transparent conductive inks, including following component in parts by weight: one-dimensional
30~70 parts of metal nanometer line dispersion liquid, 0.1~2 part of resin, 0.1~2 part of thickener, 0.001~0.1 part of levelling agent and go from
30~70 parts of sub- water.
The embodiment of the present invention also provides the preparation method of the transparent conductive ink, comprising: by thickener, resin and goes
After ionized water is sufficiently mixed uniformly, one-dimensional metal nanowire dispersion and levelling agent are added, is uniformly mixed and obtains electrically conducting transparent
Ink.
In some embodiments, the preparation method specifically includes: thickener, resin and deionized water being mixed, stirred
It mixes to be dissolved to and be uniformly dispersed, sequentially add one-dimensional metal nanowire dispersion and levelling agent, stir to get described transparent lead
Electric ink.
The embodiment of the present invention also provides a kind of flexible transparent conductive film formed by the transparent conductive ink.
The embodiment of the present invention also provides a kind of preparation method of transparent conductive film, comprising:
Transparent conductive ink is provided；
Printing equipment is provided, the printing equipment includes printing plate, and white space and image areas is distributed in the plate surface
Domain, the image-text area are opposite depressed portions；
The ink is coated on plate surface, then removes the ink for being distributed in the white space, and is made described
Ink only remains in the image-text area；And
Under pressure, make the printing ink transfer of the plate surface to the substrate surface as stock, obtain transparent
Conductive film.
In some embodiments, the preparation method includes: using the transparent conductive ink as printing equipment
The transparent conductive ink is printed on substrate surface by roll-to-roll mode by printing ink, and it is thin to obtain the electrically conducting transparent
Film.
The embodiment of the present invention also provides a kind of transparent conductive film prepared by the preparation method by the transparent conductive film.
Compared with prior art, the beneficial effect comprise that
(1) transparent conductive ink provided by the invention can significantly improve a Vygen because using component proportion above-mentioned
Belong to the mobility of nano wire, and eliminate and print wire drawing phenomenon existing for transparent conductive film in the prior art, greatly improves thin
The uniformity of film also greatly improves the dispersing uniformity and stability of one-dimensional metal nano wire in transparent conductive ink.
(2) transparent conductive ink is printed on transparent flexible substrate by roll-to-roll mode of printing and is formed thoroughly by the present invention
Bright conductive film, can directly prepare it is graphical, high lead high saturating transparent conductive film, do not need subsequent etch or laser work
Skill is graphical, and additionally by printing technology of the invention is used, the uniformity of obtained film also has very big advantage, and
Print speed printing speed is high, is very suitable to the large-scale production of transparent conductive film.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose of the invention
Technical solution.The technical solution, its implementation process and principle etc. will be further explained as follows.
A kind of transparent conductive ink provided in an embodiment of the present invention, including following component in parts by weight: one-dimensional
30~70 parts of metal nanometer line dispersion liquid, 0.1~2 part of resin, 0.1~2 part of thickener, 0.001~0.1 part of levelling agent and go from
30~70 parts of sub- water.
In some embodiments, in the one-dimensional metal nanowire dispersion one-dimensional metal nano wire length be 5~
50 μm, diameter is 10~100nm, and draw ratio is 50~5000.
In some embodiments, one-dimensional metal nano wire includes nano silver in the one-dimensional metal nanowire dispersion
Any one in line, NANO CRYSTAL COPPER WIRE and gold nanowire or two or more combinations.
Further, the one-dimensional metal nano wire is preferably nano-silver thread, particularly preferably, the rule of the nano-silver thread
Lattice are as follows: average diameter 30nm, average 30 μm of wire length, draw ratio 1000.
By using the one-dimensional metal nano wire, when preparing film, can make preferably mutual between nano wire
Knot is taken, to form the network structure of excellent electric conductivity.
In some embodiments, the concentration of the one-dimensional metal nanowire dispersion is 1~30mg/mL.
In some embodiments, the viscosity of the transparent conductive ink is 5~2000mPa.s.
In some embodiments, the surface tension of the transparent conductive ink is 20~50mN/m.
Wherein, have aforementioned viscosity range and the transparent conductive ink of surface tension range when being applied to printing, will be in
Reveal ideal printing effect, and forms the film with expected quality.
In some embodiments, the preparation method of the one-dimensional metal nanowire dispersion includes: to receive one-dimensional metal
Rice noodles are scattered in the first solvent.
Further, first solvent include water, ethyl alcohol, isopropanol, normal propyl alcohol, n-butanol, isobutanol, ethylene glycol,
Any one in butyl glycol ether, propylene glycol monomethyl ether and ethyl acetate or two or more combinations, but not limited to this.
In some embodiments, the thickener includes hydroxypropyl methyl cellulose, polyurethane thickener and acrylic acid
Any one in thickener or two or more combinations, but not limited to this.
Cooperated using other components in the thickener and the transparent conductive ink, it can be by transparent conductive ink
Viscosity is improved to suitable range, to both be conducive to improve the mobility of one-dimensional metal nano wire, it is saturating to additionally aid elimination printing
Silk thread impression existing for bright conductive film, improves the uniformity of film, and improves the dispersibility and stability of nano-silver thread.
In some embodiments, the resin include aqueous polyurethane, water-based acrylic resin, aqueous alkide resin,
Any one in aqueous epoxy resins and chlorinated polypropylene or two or more combinations, but not limited to this.
Cooperated using other components in the resin and the transparent conductive ink, electrically conducting transparent oil can be effectively improved
The adhesive force and scratch resistance of ink.
In some embodiments, the levelling agent includes polyether-modified dimethyl siloxane and polyacrylate levelling
At least one of agent.
Cooperated using other components in the levelling agent and the transparent conductive ink, electrically conducting transparent can be effectively reduced
The surface tension of ink improves the printability of transparent conductive ink.
The embodiment of the invention also provides the preparation methods of the transparent conductive ink, comprising: by thickener, resin and
Deionized water mixing, stirring and dissolving sequentially add one-dimensional metal nanowire dispersion and levelling agent, stir to being uniformly dispersed
To the transparent conductive ink.
In some specific embodiments, the electrically conductive ink can be prepared in accordance with the following methods:
The thickener of formula ratio, resin, deionized water are added to the container first, stirring and dissolving is to being uniformly dispersed, then
The one-dimensional metal nanowire dispersion of formula ratio is added, continues to stir evenly, the levelling agent stirring for then adding formula ratio is equal
It is even, obtain the transparent conductive ink.
The embodiment of the present invention also provides a kind of flexible transparent conductive film formed by the transparent conductive ink.
The embodiment of the present invention also provides a kind of preparation method of transparent conductive film, comprising:
There is provided the transparent conductive ink with；
Printing equipment is provided, the printing equipment includes printing plate, and white space and image areas is distributed in the plate surface
Domain, the image-text area are opposite depressed portions；
The ink is coated on plate surface, then removes the ink for being distributed in the white space, and is made described
Ink only remains in the image-text area；And
Under pressure, make the printing ink transfer of the plate surface to the substrate surface as stock, obtain transparent
Conductive film.
For example, in some embodiments, the transparent conductive ink can be printed on PET base material table by printing equipment
Face.
In some more specifically embodiments, the transparent conductive ink containing nano-silver thread can be passed through into the print
Brush equipment, and transparent flexible substrate surface is printed in the way of roll-to-roll, substrate is then put in 120 DEG C of baking oven, drying
10min, completely to solvent volatilization, layer of ink solidification obtains transparent conductive film.
In some embodiments, the forme roller of the printing equipment passes through electronic engraving method, laser engraving system
Any one method in version method, chemical attack method for platemaking and mechanical engraving method for platemaking is prepared, but not limited to this.
In some embodiments, the print speed printing speed of the printing equipment is 5~400m/min, preferably 10~200m/
Min, scraper pressure be 0.1~0.5MPa, preferably 0.2~0.4MPa, coining roller pressure be 0.1~0.5Mpa, preferably 0.2
~0.4MPa.
Wherein, it in the printing process, is printed when print speed printing speed is less than 5m/min or greater than 400m/min thin
Film uniformity is all poor, wherein the uniformity for the film printed in the preferred scope of 10~200m/min is more preferably.
The scraper is also known as doctor, in the printing process, when its pressure is less than 0.1MPa, then and the printing
The non-graphic part of the forme roller of equipment be easy to scrape it is unclean, and when doctor pressure is greater than 0.5MPa, then the forme roller
Abrasion with doctor again can be very serious.
And for the roller platen, when its pressure is less than 0.1Mpa, it be easy to cause pattern transfer not exclusively, and work as
When imprinting roller pressure greater than 0.5MPa, then pattern is easily deformed.When the film printed in the preferred scope in 0.2~0.4MPa
Pattern transfer is good, and pattern can be shifted completely and deform very little.
In some embodiments, the screen frequency of the forme roller of the printing equipment be 10~300 lines/centimetre, printing plate
The depth of roller is 5~100 μm, and the screen angle of forme roller is 0 °~90 °, preferably 30 °~60 °, such as can selected from 30 °,
45 ° or 60 °.
In some embodiments, the dot shape of the forme roller of the printing equipment includes diamond shape, quadrangle, hexagon
Or the site TB, and it is without being limited thereto.
The embodiment of the present invention also provides a kind of transparent conductive film prepared by the method.
In some embodiments, the transparent conductive film is flexible.
In some embodiments, the visible light transmittance of the transparent conductive film is 80~98%, square resistance 2
~200 Ω/.
Transparent conductive ink provided by the invention can be used for printing, and using the transparent conductive ink and cooperate of the invention
It is thin that printing technology can print out the good electrically conducting transparent of without silk thread, uniform, high transmittance, high conductivity, low haze, adhesive force
Film.
Below with reference to several preferred embodiments, further details of the technical solution of the present invention, it is clear that described
Embodiment be only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ability
Domain those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.The implementation condition used in following embodiment can do further adjustment according to actual needs, be not specified
Implementation condition is usually the condition in routine experiment.
Embodiment 1:
According to formula as shown in table 1 below, first the thickener of formula ratio, resin, deionized water are added to the container, stirred
It is dissolved to and is uniformly dispersed；Then the nano-silver thread dispersion liquid of formula ratio is added, continues to stir evenly；Then formula ratio is added
Levelling agent is uniformly mixing to obtain transparent conductive ink.
Wherein, the concentration of the nano-silver thread dispersion liquid is 1~30mg/mL, and the length of contained silver nanowires is 5~50 μ
M, diameter are 10~100nm, and draw ratio is 50~5000.Preferably, the average diameter of the nano-silver thread is 30nm, average line
A length of 30 μm, draw ratio 1000.Also, the solvent used in the nano-silver thread dispersion liquid can select industry is known to close
Suitable type, such as water, alcohols, ethers, Ester, such as water, ethyl alcohol, isopropanol, normal propyl alcohol, n-butanol, isobutanol, second two
One of alcohol, butyl glycol ether, propylene glycol monomethyl ether and ethyl acetate or a variety of combinations.Each nano-silver thread shown in table 1
In the formula of dispersion liquid, uses ethyl alcohol, isopropanol, ethylene glycol etc. and be used as solvent, but other solvents above-mentioned are also applicable.
The resin can select suitable type known to industry, such as aqueous polyurethane, water-based acrylic resin, aqueous
One of alkyd resin, aqueous epoxy resins and chlorinated polypropylene or a variety of combinations.It respectively adopts in formula shown in the table 1
With aqueous polyurethane, water-based acrylic resin, but other resins above-mentioned are also applicable.
The thickener can select suitable type known to industry, such as the thickening of hydroxypropyl methyl cellulose, polyurethane
One of agent and acrylic thickener or a variety of combinations.Hydroxypropyl methyl fiber respectively is used in formula shown in the table 1
Element, polyurethane thickener, but other thickeners above-mentioned are also applicable.
The levelling agent can also select suitable type known to industry, such as polyether-modified dimethyl siloxane, poly- third
Olefin(e) acid esters levelling agent etc..
Table 1
The viscosity for the transparent conductive ink being respectively formulated in embodiment 1 is within the scope of 5~2000mPa.s, and surface tension is 20
Within the scope of~50mN/m.
The transparent conductive ink being respectively formulated in embodiment 1 is printed on transparent flexible substrate by roll-to-roll mode, so
A period of time, such as 120 DEG C of processing 10min are handled under certain temperature in an oven afterwards, so that transparent conductive ink is dry solid
Change, obtains nano-silver thread transparent conductive film.
The process conditions that foregoing printing process uses are as follows: the forme roller of printing equipment can be by electronic engraving side
Any one method in method, laser engraving method for platemaking, chemical attack method for platemaking and mechanical engraving method for platemaking is prepared into
It arrives.Wherein the surface of printing plate is distributed with white space and image-text area, and the image-text area is that opposite depressed portions (or can recognize
For the picture and text recess for being formed in plate surface).And the print speed printing speed of the printing equipment be 5~400m/min, preferably 10
~200m/min.Scraper pressure is 0.1~0.5MPa, preferably 0.2~0.4MPa.Coining roller pressure is 0.1~0.5Mpa, excellent
It is selected as 0.2~0.4MPa.The screen frequency of the forme roller of the printing equipment be 10~300 lines/centimetre, the depth of forme roller is
5~100 μm.0~90 ° of the screen angle of forme roller, preferably 30~60 °, especially 30 °, 45 ° or 60 °.The site of forme roller
Shape is diamond shape, quadrangle, hexagon or the site TB.
The transparent conductive ink being respectively formulated in embodiment 1 and the transparent conductive film formed using aforementioned printing process conditions
The results are shown in Table 2 for properties.
Table 2
The nano-silver thread transparent conductive film prepared it can be seen from the result of A, B and C by formula A is formulated in table 2,
It has excellent performance, transmitance reaches 94%, 10 Ω of sheet resistance/, mist degree≤3, adhesive force 5B；When the dispersion liquid of nano-silver thread is consolidated
When content lower (such as formula B), the electric conductivity of nano-silver thread transparent conductive film is poor；When the consolidating for dispersion liquid of nano-silver thread contains
When measuring higher (such as formula C), the uniformity of transparent conductive film is decreased obviously, and Film Haze has biggish increase.
It can be seen that the formula of the silver nanowires dispersion liquid dispersed using isopropanol and ethyl alcohol from the result of formula A, D and E
The film performance of preparation is excellent, but using ethylene glycol dispersion silver nanowires dispersion liquid formula preparation film, uniformity compared with
Difference, this may be ethylene glycol boiling point it is excessively high caused by.
From formula A, F and G result can be seen that when be added in ink less amount of thickener (as formula F), it is transparent to lead
The uniformity of conductive film is poor, and sheet resistance is larger；When the amount of thickener of addition is higher (such as formula G), transparent conductive film is conductive
Property is poor.
Embodiment 2:
The difference of the present embodiment and embodiment 1 is according to formula (feed change and dosage) as shown in table 3 below, first will
The thickener of formula ratio, resin, deionized water are added to the container, and stirring and dissolving is to being uniformly dispersed；Then receiving for formula ratio is added
Rice silver wire dispersion liquid, continues to stir evenly；Then the levelling agent for adding formula ratio is uniformly mixing to obtain that nano-silver thread is transparent to lead
Electric ink.
The composition for the nano-silver thread dispersion liquid that the present embodiment uses and the type and reality of thickener, resin, levelling agent etc.
It is essentially identical to apply example 1, is no longer further described herein.
Table 3
The transparent conductive ink being respectively formulated in embodiment 2 is printed on transparent flexible substrate by roll-to-roll mode of printing
On, then 120 DEG C of processing 10min in an oven, so that transparent conductive ink dry solidification, obtains transparent conductive film.Wherein
The printing process conditions of use are substantially the same manner as Example 1.The transparent conductive ink and each self-forming being respectively formulated in the embodiment 2
Transparent conductive film properties the results are shown in Table 4.
Table 4
Result as shown in Table 4 can be seen that the nano-silver thread transparent conductive film of formula J and K preparation, have excellent performance,
Transmitance reaches 94%, and 10~12 Ω of sheet resistance/, mist degree≤3, adhesive force is 4~5B.And it is formulated in H and less amount of gather is added
Ether is modified dimethyl siloxane levelling agent, and ink surface tension is larger, and the wetability on PET is poor, so that preparing transparent lead
Conductive film electric conductivity is poor；And it is formulated the polyether-modified dimethyl siloxane levelling agent that more amount is added in I, due to polyether-modified
Dimethyl siloxane levelling agent is the electric conductivity of meeting large effect film when non-conductive substance additional amount is more.It is formulated in L and adds
Less amount of resin is entered, transparent conductive film adhesive force is poor.The resin content being added in formula M is higher, and electrically conducting transparent is thin
Film conductivity is poor.The deionized water being added in formula N is more, and the electric conductivity of transparent conductive film is poor.It is added in formula O
Deionized water is less, and the uniformity of transparent conductive film is poor.
Embodiment 3:
The present embodiment is according to formula (feed change and dosage) as shown in table 5 below, first by the thickener of formula ratio, tree
Rouge, deionized water are added to the container, and stirring and dissolving is to being uniformly dispersed；Then the one-dimensional metal nano wire dispersion of formula ratio is added
Liquid continues to stir evenly；Then the levelling agent for adding formula ratio is uniformly mixing to obtain one-dimensional metal nano wire electrically conducting transparent oil
Ink.
The one-dimensional metal nanowire dispersion that the present embodiment uses is respectively silver nanowires dispersion liquid, copper nano-wire dispersion
Liquid, gold nanowire dispersion, using isopropanol as solvent, concentration is 10ml/mL.Wherein, silver nanowires, nanowires of gold,
The specification of copper nano-wire is equal are as follows: length is 5~50 μm, and diameter is 10~100nm, and draw ratio is 50~5000.
The type of thickener, resin, the levelling agent that the present embodiment uses etc. is substantially the same manner as Example 1, no longer gives herein
With further instruction.
Table 5
The transparent conductive ink being respectively formulated in embodiment 3 is printed on transparent flexible substrate by mode of printing, then
120 DEG C of processing 10min in an oven, so that transparent conductive ink dry solidification, obtains transparent conductive film.The print wherein used
Brush process conditions are substantially the same manner as Example 1.The transparent conductive ink and the transparent of each self-forming being respectively formulated in the embodiment 3 are led
The results are shown in Table 6 for conductive film properties.
Table 6
Result as shown in Table 6 can be seen that the nanowires of gold transparent conductive film of formula Q preparation, have excellent performance, and penetrate
Rate reaches 93%, 15 Ω of sheet resistance/, mist degree≤3, adhesive force 5B.And it is formulated the copper nano-wire transparent conductive film side of P preparation
It hinders larger, is to need higher temperature to be just able to achieve NANO CRYSTAL COPPER WIRE due to copper nano-wire preferably to contact, and copper nano-wire appearance
It is oxidizable.
Using transparent conductive ink provided in an embodiment of the present invention, can be printed out by modes such as roll-to-roll printings without silk
The transparent conductive film that line is uniform, high transmittance, high conductivity, low haze, adhesive force are good.
In addition, inventor is also replaced using listed other raw materials of the invention and other process conditions etc. above
For in embodiment 1-3 various raw materials and corresponding process conditions carried out corresponding test, the content of required verifying and with implementation
Example 1-3 product is close.So do not explained one by one to the verifying content of each embodiment, only with embodiment 1-3 work herein
Illustrate the excellent place of the present patent application to represent.
It should be appreciated that above-described is only some embodiments of the present invention, it is noted that for the common of this field
For technical staff, under the premise of not departing from concept of the invention, other modification and improvement can also be made, these are all
It belongs to the scope of protection of the present invention.
Claims (12)
1. a kind of transparent conductive ink, which is characterized in that including following component in parts by weight: one-dimensional metal nano wire
30~70 parts of dispersion liquid, 0.1~2 part of resin, 0.1~2 part of thickener, 0.001~0.1 part of levelling agent and deionized water 30~70
Part.
2. transparent conductive ink as described in claim 1, it is characterised in that: one-dimensional in the one-dimensional metal nanowire dispersion
The length of metal nanometer line is 5~50 μm, and diameter is 10~100nm, and draw ratio is 50~5000；With the one-dimensional metal nanometer
In line dispersion liquid one-dimensional metal nano wire include in nano-silver thread, NANO CRYSTAL COPPER WIRE and gold nanowire any one or it is two or more
Combination.
3. transparent conductive ink as described in claim 1, it is characterised in that: the concentration of the one-dimensional metal nanowire dispersion
For 1~30mg/mL.
4. transparent conductive ink as described in claim 1, it is characterised in that: the viscosity of the transparent conductive ink be 5~
2000mPa.s；Surface tension with the transparent conductive ink is 20~50mN/m.
5. transparent conductive ink as described in claim 1, which is characterized in that the preparation of the one-dimensional metal nanowire dispersion
Method includes: to disperse the first solvent for one-dimensional metal nano wire；Preferably, first solvent includes water, ethyl alcohol, isopropyl
In alcohol, normal propyl alcohol, n-butanol, isobutanol, ethylene glycol, butyl glycol ether, propylene glycol monomethyl ether and ethyl acetate any one or
Two or more combinations.
6. transparent conductive ink as described in claim 1, it is characterised in that: the thickener includes hydroxypropyl methyl fiber
Any one in element, polyurethane thickener and acrylic thickener or two or more combinations；It include aqueous with the resin
Any one in polyurethane, water-based acrylic resin, aqueous alkide resin, aqueous epoxy resins and chlorinated polypropylene or two kinds
Above combination；With the levelling agent includes in polyether-modified dimethyl siloxane and polyacrylate levelling agent at least one
Kind.
7. a kind of method for preparing transparent conductive ink of any of claims 1-6, characterized by comprising:
Thickener, resin and deionized water are sufficiently mixed uniformly, add one-dimensional metal nanowire dispersion and levelling agent,
It is even to be mixed to get the transparent conductive ink.
8. the flexible transparent conductive film that the transparent conductive ink as described in any one of claim 1-6 is formed.
9. a kind of preparation method of transparent conductive film, characterized by comprising:
Transparent conductive ink of any of claims 1-6 is provided；
Printing equipment is provided, the printing equipment includes printing plate, and white space and image-text area is distributed in the plate surface, institute
Stating image-text area is opposite depressed portions；
The ink is coated on plate surface, then removes the ink for being distributed in the white space, and makes the ink
It only remains in the image-text area；And
Under pressure, make the printing ink transfer of the plate surface to the substrate surface as stock, obtain electrically conducting transparent
Film.
10. preparation method as claimed in claim 9, characterized by comprising: by printing equipment, and use roll-to-roll mode
The transparent conductive ink is printed on substrate surface, obtains transparent conductive film；The forme roller of the printing equipment passes through electricity
It is any one in son engraving method for platemaking, laser engraving method for platemaking, chemical attack method for platemaking and mechanical engraving method for platemaking
Kind method is prepared.
11. preparation method as claimed in claim 10, it is characterised in that: the print speed printing speed of the printing equipment is 5~400m/
Min, preferably 10~200m/min, scraper pressure are 0.1~0.5MPa, preferably 0.2~0.4MPa, and coining roller pressure is
0.1~0.5Mpa, preferably 0.2~0.4MPa；And/or the screen frequency of forme roller is 10~300 in the printing equipment
Line/centimetre, the depth of forme roller is 5~100 μm, and the screen angle of forme roller is 0 °~90 °, preferably 30 °~60 °；With/
Or, the dot shape of the printing equipment forme roller includes diamond shape, quadrangle, hexagon or the site TB.
12. the transparent conductive film prepared by any one of claim 9-11 the method；Preferably, the electrically conducting transparent is thin
Film is flexible；Preferably, the visible light transmittance of the transparent conductive film is 80~98%, and square resistance is 2~200
Ω/□。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547852.5A CN110204963A (en) | 2019-06-24 | 2019-06-24 | Transparent conductive ink, preparation method and application |
Applications Claiming Priority (1)
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| CN110713800A (en) * | 2019-11-12 | 2020-01-21 | 深圳市益达兴科技股份有限公司 | Novel antistatic protective film and preparation method thereof |
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| US20150056382A1 (en) * | 2012-04-26 | 2015-02-26 | Showa Denko K. K. | Transparent conductive ink and transparent conductive pattern forming method |
| CN106046918A (en) * | 2016-07-26 | 2016-10-26 | 珠海纳金科技有限公司 | Conductive ink and preparation method thereof |
| CN107365529A (en) * | 2017-07-31 | 2017-11-21 | 珠海纳金科技有限公司 | A kind of electrically conductive ink and preparation method and volume to volume conductive film and preparation method |
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| US20150056382A1 (en) * | 2012-04-26 | 2015-02-26 | Showa Denko K. K. | Transparent conductive ink and transparent conductive pattern forming method |
| CN106046918A (en) * | 2016-07-26 | 2016-10-26 | 珠海纳金科技有限公司 | Conductive ink and preparation method thereof |
| CN107365529A (en) * | 2017-07-31 | 2017-11-21 | 珠海纳金科技有限公司 | A kind of electrically conductive ink and preparation method and volume to volume conductive film and preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110713800A (en) * | 2019-11-12 | 2020-01-21 | 深圳市益达兴科技股份有限公司 | Novel antistatic protective film and preparation method thereof |
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Application publication date: 20190906 |