CN108735333A - A kind of transparent conductive film and preparation method thereof - Google Patents
A kind of transparent conductive film and preparation method thereof Download PDFInfo
- Publication number
- CN108735333A CN108735333A CN201810575776.4A CN201810575776A CN108735333A CN 108735333 A CN108735333 A CN 108735333A CN 201810575776 A CN201810575776 A CN 201810575776A CN 108735333 A CN108735333 A CN 108735333A
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- coating layer
- magnetic field
- silver nanowire
- silver
- conductive film
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
Abstract
The embodiment of the invention discloses a kind of transparent conductive films and preparation method thereof, this method is after substrate surface coating Nano silver solution forms coating layer, the coating layer be formed by curing before transparent conductive film, apply electric field to the silver nanowire in the coating layer, change the arragement direction of silver nanowire in the coating layer, so that the silver nanowire in the coating layer is arranged according to default arrangement mode, to obtain the transparent conductive film for meeting use demand resistance ratio, it solves in the prior art since there are horizontal and vertical resistance ratio differences for nano-silver conductive film, cause using the nano-silver conductive film problem more demanding as the product design of conductive film.
Description
Technical field
The present invention relates to conductive technical field of membrane more particularly to a kind of transparent conductive film and preparation method thereof.
Background technology
With the development of science and technology, the type of the film (i.e. conductive film) with conducting function is more and more, wherein
ITO (Indium Tin Oxide, tin indium oxide) transparent conductive film is the most commonly used.In recent years, nano silver due to low resistance,
The advantages such as transparent, bent, are increasingly becoming the alternative materials of ITO, still, since there are horizontal and vertical for nano-silver conductive film
Resistance ratio difference, so as to cause more demanding as the product design of conductive film using nano-silver conductive film.
Invention content
In order to solve the above technical problems, an embodiment of the present invention provides a kind of transparent conductive film and preparation method thereof, with solution
It is conductive so as to cause being used as using nano-silver conductive film certainly since there are horizontal and vertical resistance ratio differences for nano-silver conductive film
The more demanding problem of the product design of film.
To solve the above problems, an embodiment of the present invention provides following technical solutions：
A kind of production method of transparent conductive film, including：
Base material is provided；
It is coated with Nano silver solution in the substrate surface, forms coating layer, the Nano silver solution includes multiple nanometers
Filamentary silver；
Apply magnetic field to the coating layer so that the silver nanowire of the coating layer is arranged according to default arrangement mode；
The coating layer is cured, transparent conductive film is formed.
Preferably, it is coated with Nano silver solution in the substrate surface, forming coating layer includes：
By the way of inkjet printing or crack coating mode or spraying mode, the substrate surface be coated with nanometer
Silver-colored solution forms coating layer.
Preferably, the coating layer is given to apply magnetic field so that the silver nanowire of the coating layer is according to default arrangement mode
Arrangement includes：
Apply magnetic field to the coating layer using permanent magnet so that the silver nanowire of the coating layer is according to default arrangement
Mode is arranged.
Preferably, using permanent magnet to the coating layer apply magnetic field so that the silver nanowire of the coating layer according to
Default arrangement mode, which is arranged, includes：
Apply magnetic field to the coating layer using permanent magnet, the coating layer is given in the position of the fixed permanent magnet
Apply the magnetic field of fixed-direction so that the silver nanowire of the coating layer is arranged at same direction.
Preferably, using permanent magnet to the coating layer apply magnetic field so that the silver nanowire of the coating layer according to
Default arrangement mode, which is arranged, includes：
Apply magnetic field to the coating layer using permanent magnet, rotates the permanent magnet, change the magnetic field in the magnetic field
Direction so that the silver nanowire of the coating layer is in rambling arrangement.
Preferably, the coating layer is given to apply magnetic field so that the silver nanowire of the coating layer is according to default arrangement mode
Arrangement includes：
Apply magnetic field to the coating layer using electromagnet so that the silver nanowire of the coating layer is according to default arrangement side
Formula is arranged.
Preferably, apply magnetic field to the coating layer using electromagnet so that the silver nanowire of the coating layer is according to pre-
If arrangement mode arrangement includes：
Apply magnetic field to the coating layer using electromagnet, the current direction in the fixed electromagnet gives the coating
Layer applies the magnetic field of fixed-direction so that the silver nanowire of the coating layer is arranged at same direction.
Preferably, apply magnetic field to the coating layer using electromagnet so that the silver nanowire of the coating layer is according to pre-
If arrangement mode arrangement includes：
Apply magnetic field to the coating layer using electromagnet, changes the current direction in the electromagnet, to change
State the magnetic direction in magnetic field so that the silver nanowire of the coating layer is in rambling arrangement.
Preferably, the base material is glass baseplate or PET base material or COP base materials.
A kind of transparent conductive film is made using the production method that any of the above-described is provided.
Compared with prior art, above-mentioned technical proposal has the following advantages：
The technical solution that the embodiment of the present invention is provided is forming coating layer in substrate surface coating Nano silver solution
Later, before carrying out being formed by curing transparent conductive film to the coating layer, apply electric field to the silver nanowire in the coating layer,
Change the arragement direction of silver nanowire in the coating layer, so that the silver nanowire in the coating layer is according to default arrangement side
Formula is arranged, and to obtain the transparent conductive film for meeting use demand resistance ratio, is solved in the prior art due to nano-silver conductive film
There are horizontal and vertical resistance ratio difference, cause more demanding as the product design of conductive film using nano-silver conductive film
Problem.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram when being coated with Nano silver solution on base material；
The production method flow chart for the transparent conductive film that Fig. 2 is provided by one embodiment of the invention；
The transparent conductive film that Fig. 3 is made for the production method of the transparent conductive film provided using one embodiment of the invention
A kind of arrangement mode schematic diagram of middle silver nanowire；
The transparent conductive film that Fig. 4 is made for the production method of the transparent conductive film provided using one embodiment of the invention
Another arrangement mode schematic diagram of middle silver nanowire.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
Implemented different from other manner described here using other, those skilled in the art can be without prejudice to intension of the present invention
In the case of do similar popularization, therefore the present invention is not limited by following public specific embodiment.
Just as described in the background section, since there are horizontal and vertical resistance ratio differences for nano-silver conductive film, thus
Cause more demanding as the product design of conductive film using nano-silver conductive film.
Inventor the study found that this is because nano silver be in the form of Filamentous existing for, diameter is Nano grade,
Usually only 10 rans, and the length of its lines is micron level, typically 45 μm or so so that the length of silver nanowire
Degree and diameter difference are very big, as shown in Figure 1, in forming process, 02 1 contact base materials 01 of silver nanowire, other end is being coated with
In the coating head 03 of device, when being applied on base material 01 with the movement of coating head 03, largely depend in the same direction,
Linear arrangement shows certain directionality, is embodied in its length direction and is parallel to coating direction X, diametric(al) is hung down
Directly in coating direction, after the completion of the coating of each silver nanowire, it is parallel to the silver nanowire number connected together on coating direction
Amount is more than the silver nanowire quantity (only having a small amount of silver nanowire connection on longitudinal direction) connected together on coating direction,
So that manufactured conductive film is very big along the resistance of coating direction X, the resistance very little perpendicular to coating direction causes to utilize painting
Conductive film made of silver nanowire on cloth to base material is in transverse direction (being parallel to coating direction X) and longitudinal direction (perpendicular to coating direction
X the resistance on) differs greatly.
In view of this, an embodiment of the present invention provides a kind of production method of transparent conductive film, as shown in Fig. 2, the making
Method includes：
S1：Base material is provided.
Since the state that nano silver is generally made as solution makes transparent conductive film, therefore in embodiments of the present invention, need
Carrier of the base material as Nano silver solution described in the transparent conductive film manufacturing process is provided.
Specifically, in one embodiment of the invention, the base material can be glass baseplate, or PET
(Polyethylene terephthalate, polyester resin) base material can also be COP (Coefficient Of
Performance, optical material) base material or other materials base material, the present invention do not limit this, specifically depend on the circumstances.
On the basis of the above embodiments, in one particular embodiment of the present invention, the solvent of the Nano silver solution
Can be water, or other dispersants, the present invention do not limit this, as long as can it be placed in the nano silver
In, form Nano silver solution.
S2：It is coated with Nano silver solution in the substrate surface, forms coating layer, wherein the Nano silver solution includes
Multiple silver nanowires.
In one embodiment of the invention, it is coated with Nano silver solution in the substrate surface, forming coating layer includes：It adopts
With the mode of inkjet printing, it is coated with Nano silver solution in the substrate surface, forms coating layer；In another implementation of the present invention
In example, it is coated with Nano silver solution in the substrate surface, forming coating layer includes：By the way of crack coating, in the base
Material surface is coated with Nano silver solution, forms coating layer；In yet another embodiment of the present invention, Buna is applied in the substrate surface
The silver-colored solution of rice, forming coating layer includes：By the way of spraying, it is coated with Nano silver solution in the substrate surface, forms coating
Layer, but the present invention does not limit this, in other embodiments of the invention, other modes can also be used, in the base
Material surface is coated with Nano silver solution, forms the coating layer.
S3：Apply magnetic field to the coating layer so that the silver nanowire of the coating layer is arranged according to default arrangement mode.
In embodiments of the present invention, by giving the coating layer to apply magnetic field, change the silver nanowire in the coating layer
Arragement direction so that the silver nanowire of the coating layer is arranged according to default arrangement mode.Wherein, the preset direction row
Cloth can be the arrangement in certain orientation, or rambling arrangement, the present invention do not limit this, in the present invention
Other embodiment in, the default arragement direction can also be other arragement directions, specifically depend on the circumstances.
Under the action of fixed magnetic field certain distributing order is presented, not in silver nanowire positioned at the substrate surface
Under the action of disconnected changing magnetic field, rambling arrangement is presented, specifically, as shown in figure 3, when on the base material 10
The coating layer in silver nanowire 20 when applying fixed magnetic field 30, the silver nanowire 20 in the coating layer is pressed same
Direction is arranged, and the direction can be parallel to coating direction, or, can also be with the coating direction perpendicular to coating direction
At any angle, the present invention does not limit this, at this point, the resistance difference on manufactured transparent conductive film transverse direction X and longitudinal direction Y
Larger, resistance ratio is far from 1；As shown in figure 4, applying when to the silver nanowire 20 in the coating layer being located on the base material 10
When changing magnetic field 30, the silver nanowire 20 in the coating layer is in rambling arrangement, at this point, manufactured transparent conductive film
Resistance difference on lateral X and longitudinal direction Y is smaller, and resistance ratio is close to 1.
Based on any of the above embodiments, in one embodiment of the invention, the coating layer is given to apply magnetic field,
So that the silver nanowire of the coating layer includes according to the arrangement of default arrangement mode：Applied to the coating layer using permanent magnet
Magnetic field so that the silver nanowire of the coating layer is arranged according to default arrangement mode.
On the basis of the above embodiments, in one embodiment of the invention, the coating layer is given using permanent magnet
Apply magnetic field so that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：Using permanent magnet to described
Coating layer applies magnetic field, and the position of the fixed permanent magnet applies the magnetic field of fixed-direction to the coating layer so that described
The silver nanowire of coating layer is arranged at same direction.In another embodiment of the present invention, using permanent magnet to described
Coating layer applies magnetic field so that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：Utilize permanent magnet
Apply magnetic field to the coating layer, rotates the permanent magnet, change the magnetic direction in the magnetic field so that the coating layer
Silver nanowire is in rambling arrangement.
In another embodiment of the present invention, the coating layer is given to apply magnetic field so that the nano silver of the coating layer
Silk is arranged according to default arrangement mode：Apply magnetic field to the coating layer using electromagnet so that the coating layer is received
Meter Yin Si arranges according to default arrangement mode.
On the basis of the above embodiments, in one embodiment of the invention, it is applied to the coating layer using electromagnet
Add magnetic field so that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：The coating is given using electromagnet
Layer applies magnetic field, and the current direction in the fixed electromagnet applies the magnetic field of fixed-direction to the coating layer so that described
The silver nanowire of coating layer is arranged at same direction.In another embodiment of the present invention, the painting is given using electromagnet
Layer of cloth applies magnetic field so that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：Using electromagnet to institute
It states coating layer and applies magnetic field, change the current direction in the electromagnet, to change the magnetic direction in the magnetic field so that institute
The nanometer silver atoms for stating coating layer are in rambling arrangement.
S4：The coating layer is cured, transparent conductive film is formed.
Correspondingly, the embodiment of the present invention additionally provides a kind of production method making provided using any of the above-described embodiment
Transparent conductive film, which is made using silver nanowire, and the silver nanowire in the transparent conductive film is pressed
It arranges according to default arrangement mode.
From the above mentioned it is found that the production method for the transparent conductive film that the embodiment of the present invention is provided, in the substrate surface
It is coated with Nano silver solution to be formed after coating layer, before carrying out being formed by curing transparent conductive film to the coating layer, gives the painting
Silver nanowire in layer of cloth applies electric field, changes the arragement direction of silver nanowire in the coating layer, so that the coating layer
In silver nanowire arrange according to default arrangement mode, meet the transparent conductive film of use demand resistance ratio to obtain, solve
In the prior art since nano-silver conductive film is there are horizontal and vertical resistance ratio difference, cause to use nano-silver conductive film conduct
The more demanding problem of the product design of conductive film.
Various pieces are described by the way of progressive in this specification, and what each some importance illustrated is and other parts
Difference, just to refer each other for identical similar portion between various pieces.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to embodiment illustrated herein, and is to fit to consistent with the principles and novel features disclosed in this article
Widest range.
Claims (10)
1. a kind of production method of transparent conductive film, which is characterized in that including：
Base material is provided；
It is coated with Nano silver solution in the substrate surface, forms coating layer, wherein the Nano silver solution includes multiple nanometers
Filamentary silver；
Apply magnetic field to the coating layer so that the silver nanowire of the coating layer is arranged according to default arrangement mode；
The coating layer is cured, transparent conductive film is formed.
2. manufacturing method according to claim 1, which is characterized in that be coated with Nano silver solution, shape in the substrate surface
Include at coating layer：
By the way of inkjet printing or crack coating mode or spraying mode, the substrate surface coating nano silver it is molten
Liquid forms coating layer.
3. manufacturing method according to claim 1, which is characterized in that apply magnetic field to the coating layer so that the painting
The silver nanowire of layer of cloth is arranged according to default arrangement mode：
Apply magnetic field to the coating layer using permanent magnet so that the silver nanowire of the coating layer is according to default arrangement mode
Arrangement.
4. production method according to claim 3, which is characterized in that apply magnetic to the coating layer using permanent magnet
So that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：
Apply magnetic field to the coating layer using permanent magnet, the position of the fixed permanent magnet applies to the coating layer
The magnetic field of fixed-direction so that the silver nanowire of the coating layer is arranged at same direction.
5. production method according to claim 3, which is characterized in that apply magnetic to the coating layer using permanent magnet
So that the silver nanowire of the coating layer is arranged according to default arrangement mode includes：
Apply magnetic field to the coating layer using permanent magnet, rotate the permanent magnet, change the magnetic direction in the magnetic field,
So that the nanometer silver atoms of the coating layer are in rambling arrangement.
6. manufacturing method according to claim 1, which is characterized in that apply magnetic field to the coating layer so that the painting
The silver nanowire of layer of cloth is arranged according to default arrangement mode：
Apply magnetic field to the coating layer using electromagnet so that the silver nanowire of the coating layer is arranged according to default arrangement mode
Cloth.
7. production method according to claim 6, which is characterized in that apply magnetic field to the coating layer using electromagnet,
So that the silver nanowire of the coating layer includes according to the arrangement of default arrangement mode：
Apply magnetic field to the coating layer using electromagnet, the current direction in the fixed electromagnet is applied to the coating layer
It is fixed the magnetic field in direction so that the silver nanowire of the coating layer is arranged at same direction.
8. production method according to claim 6, which is characterized in that apply magnetic field to the coating layer using electromagnet,
So that the silver nanowire of the coating layer includes according to the arrangement of default arrangement mode：
Apply magnetic field to the coating layer using electromagnet, changes the current direction in the electromagnet, to change the magnetic
The magnetic direction of field so that the silver nanowire of the coating layer is in rambling arrangement.
9. manufacturing method according to claim 1, which is characterized in that the base material is glass baseplate or PET base material or COP
Base material.
10. a kind of transparent conductive film, which is characterized in that made using the production method that any one of claim 1-9 is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575776.4A CN108735333B (en) | 2018-06-06 | 2018-06-06 | Transparent conductive film and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810575776.4A CN108735333B (en) | 2018-06-06 | 2018-06-06 | Transparent conductive film and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN108735333A true CN108735333A (en) | 2018-11-02 |
| CN108735333B CN108735333B (en) | 2020-07-31 |
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| CN201810575776.4A Active CN108735333B (en) | 2018-06-06 | 2018-06-06 | Transparent conductive film and manufacturing method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102197439A (en) * | 2008-10-24 | 2011-09-21 | 应用材料股份有限公司 | Magnetic nanostructures for tco replacement |
| DE102012102319A1 (en) * | 2012-03-20 | 2013-09-26 | Rent A Scientist Gmbh | Nonlinear nano-wire useful e.g. for producing transparent electrodes e.g. in the fields of display, touch screen and in the field of printed electronics, comprises two linear portions and curved portion arranged between the linear portions |
| CN104008819A (en) * | 2014-05-27 | 2014-08-27 | 东莞市鑫聚光电科技有限公司 | Production method of nanometer silver wire transparent conducting film |
-
2018
- 2018-06-06 CN CN201810575776.4A patent/CN108735333B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102197439A (en) * | 2008-10-24 | 2011-09-21 | 应用材料股份有限公司 | Magnetic nanostructures for tco replacement |
| DE102012102319A1 (en) * | 2012-03-20 | 2013-09-26 | Rent A Scientist Gmbh | Nonlinear nano-wire useful e.g. for producing transparent electrodes e.g. in the fields of display, touch screen and in the field of printed electronics, comprises two linear portions and curved portion arranged between the linear portions |
| CN104008819A (en) * | 2014-05-27 | 2014-08-27 | 东莞市鑫聚光电科技有限公司 | Production method of nanometer silver wire transparent conducting film |
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| CN108735333B (en) | 2020-07-31 |
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