CN108399977A - A method of so that nano-silver thread transparent conductive film is had the function of the shadow that disappears - Google Patents
A method of so that nano-silver thread transparent conductive film is had the function of the shadow that disappears Download PDFInfo
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- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- 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
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Abstract
The invention discloses a kind of methods for making nano-silver thread transparent conductive film have the shadow function that disappears, and are that functional layer is arranged between base material and nano-silver thread transparency conducting layer；Functional layer is coated on substrate surface by functional layer slurry and is formed a film and obtain, and functional layer and the mist degree difference of nano-silver thread transparency conducting layer are less than 0.1, to achieve the purpose that the shadow that disappears.The present invention between base material and conductive layer by way of adding functional layer, nano-silver thread transparent conductive film is set to have the function of the shadow that disappears, electrode district is completely disappeared with non-electrode region etching edge trace, method is simple and convenient to operate, advantage with high yield, high-reliability, it is suitble to industrialized production, and the method for the present invention has universality.
Description
Technical field
The present invention relates to display fields, and in particular to a kind of side for making nano-silver thread transparent conductive film have the shadow function that disappears
Method, nano-silver thread transparent conductive film prepared by this method are particularly suited for use in optical glass, transparent flexible base material and solar energy face
On plate.
Background technology
Transparent conductive film is the important optical device of display field, and ITO nesa coating is most widely used at present.But ITO
There is transparent conductive film bending property difference to be not used to high flexibility equipment, sheet resistance height can not prepare highly sensitive large scale and show
The shortcomings of equipment, complicated film preparation sputtering vacuum process, so related scientific research staff develops nanometer in succession in recent years
Metal conductive film, carbon nanotube conductive film, graphene film etc. substitute the novel transparent conductive film of ITO nesa coating, wherein
Nano-silver thread transparent conductive film is due to haveing excellent performance, of low cost, preparation process simply becomes the most effective replacement of ITO conductive films
Material.
Nano-silver thread transparent conductive film is that nano-silver thread and film forming agent, dispersant, solvent are mixed into nano-silver thread conduction
Ink, by the coated technique of the ink in base material (such as PET, PE, PP, PC, PI, PVC or PS, width 500nm-2000mm, mist
Degree is less than 5, to be more than 85%, surface dynes value be 30-45 dynes to light transmittance) on form a film, form nano-silver thread conductive layer and obtain.
Nano-silver thread transparent conductive film as the important optical device applied in fields such as display, touch screen, thin-film solar cells,
It usually requiring to carry out patterned process, Patternized technique mainly has laser ablation, exposure imaging, three kinds of silk-screen printing at present,
Middle exposure imaging has that efficient, yield is high, the advantages such as at low cost become most important patterning regimes.Patterning is led transparent
Electrolemma is divided into two parts of electrode district and non-electrode region, and that there are mist degrees between the two parts is poor, causes visually observed
To electrode area edge, if this transparent conductive film is directly applied in display screen, touch screen visual effect can be reduced, therefore need
The shadow processing that disappears is carried out to the transparent conductive film, eliminate the naked eyes visibility of electrode area edge.
103258596 A of patent CN propose a kind of nano conductive film and disappear the method for shadow, and this method is mainly non-electrode
Area is coated with filling liquid or carries out nano metal oxide to non-electrode region using etching liquid but not exclusively etch away non-electrode region to receive
Rice metal is finally not easy electrode area edge to keep refractive index, mist degree, the transmissivity of non-electrode region and electrode district close
It is differentiated by human eye；104521005 A of patent CN propose it is a kind of is generated under the conditions of UV using non-electrode region it is sour by nano-silver thread
It is oxidized to weak inductive oxidation nanometer silver wire, then the photoacid generator of electrode district, which is annealed, removes, to make electrode district and non-electrical
The refractive index and mist degree of polar region are close, reach the shadow purpose that disappears；106433647 A of patent CN 103215592B and CN is proposed respectively
A kind of so that etching paste and nano-silver thread is reacted rapidly using in non-electrode region silk-screen etching paste, then washing removes residual and carves
Erosion cream obtains the pattern of low etching trace.The shadow etching that disappears of above four patents is that use etches partially method, and non-electrode region is still
Remain nano metal ion, functional reliability needs market validation, while etching yield and being difficult to control, and etching is not easy to lead entirely
Short circuit is caused, disabler, etching can excessively cause etched mark to occur, to which the shadow purpose that disappears be not achieved；Etching paste needs silk simultaneously
Wire mark brush, silk-screen printing are relatively low to fine line diameter printing precision.20150362822 A1 of patent US propose it is a kind of utilize nanometer
ZnO is coated on silver wire layer surface, and the high transparency by nano-ZnO and low diffusing reflection improve light transmittance and the reduction of electrode district
The mist degree of electrode district achievees the purpose that the shadow that disappears to reduce the contrast of electrode district and non-electrode region with this, but the method without
The optical property of electrode district is increased to, in this way can only reduce contrast close with base material by method, and is unable to reach thoroughly
Eliminate the purpose of etching trace；
Therefore, for the serious problem of nano-silver thread transparent conductive film etching trace, be badly in need of a kind of high yield, high-reliability,
It is easy to operate, be suitble to industrialized production, and the nano-silver thread with the shadow function that disappears for not needing client change processing procedure transparent is led
Electrolemma.
Invention content
In order to avoid above-mentioned the deficiencies in the prior art place, the present invention is intended to provide a kind of making nano silver with universality
Line transparent conductive film has the method for shadow function of disappearing, at the same make it have high yield, high-reliability, it is easy to operate, be suitble to industry
The advantage of metaplasia production.
In order to achieve the above object, the present invention adopts the following technical scheme that：
The present invention makes nano-silver thread transparent conductive film that there is the method for shadow function of disappearing, feature to be：Be base material with receive
Functional layer is added between rice silver wire transparency conducting layer；
The functional layer is coated on substrate surface by functional layer slurry and is formed a film and obtain；
The functional layer slurry includes following component in parts by mass：
5-15 parts of resin film forming matter；
2-20 parts of metal nanoparticle；
60-92 parts of solvent；
1-5 parts of dispersant.
The function layer thickness adjusts the diffusing reflection journey of functional layer by adjusting function layer thickness in 10nm-300nm
Degree, to make the functional layer and the mist degree difference of nano-silver thread transparency conducting layer be less than 0.1.The functional layer has high light transmission
Rate, the influence reduced to the light transmittance of transparent conductive film are less than 0.5%.Specifically, in actual production, first directly on base material
It is coated with nano-silver thread conductive ink and forms nano-silver thread transparency conducting layer, test its mist degree, further according to measured haze value, adjust
The thickness for controlling functional layer, makes it have suitable haze value, to instruct subsequent production.
The present invention makes nano-silver thread transparent conductive film have the method for the shadow function that disappears, and specifically comprises the following steps：
A, dispersion cylinder is added in each component of function coating, uses planetary gravity dispersion machine or mechanical dispersion equipment
Disperse uniform, acquisition functional layer slurry；
B, the functional layer slurry is coated on base material simultaneously baking and curing by the way that coating process is uniform, forms functional layer；
C, required nano-silver thread conductive ink is coated on function layer surface and baking and curing by the way that coating process is uniform,
Nano-silver thread transparency conducting layer is formed, that is, obtains the nano-silver thread transparent conductive film with the shadow function that disappears.
Preferably, coating process described in step b is coated with for dimple：Heat curing temperature is 50-110 DEG C, and hardening time is
2-30min.The prior art of selected nano-silver thread conductive ink can be used in coating process in step c.
Preferably, the resin film forming matter is waterborne polyurethane resin or aqueous epoxy resins；
The waterborne polyurethane resin by polyether polyol and water-based isocyanate curing agent (Bayhydur 305,XP 2451、Bayhydur 401-70、XP 2547、Bayhydur XP 2655、N3390、
CONONATE AQ-130, Desmodur DN, HW100, HA200, LR9056, CONONATE AQ-130,6011 Wisotive,
6120) HDX50, ZY-001, GY50 are mixed；
The aqueous epoxy resins by aqueous epoxy emulsion Waterpoxy 1455, DER-175, DER-916, W-95,
One kind in WER-W3002 and aqueous epoxy curing agent (Anquamine 721, K-238, EPOTEC THW4504, WH-1000
Or NE-1000) mix.
Preferably, the metal nanoparticle is water nano aluminium oxide, water nano titanium dioxide, water nano oxidation
Iron, water nano zirconium dioxide, water nano cuprous oxide, water nano chrome green, water nano three aoxidize two tungsten, water
Property nano-cerium oxide, water nano tin oxide, water nano nickel oxide, water nano antimony oxide, water nano molybdenum trioxide, water
One or both of property nano-manganese dioxide mixture；The metal nanoparticle is spherical shape, grain size 5nm-50nm.
Preferably, the solvent is water or ethyl alcohol.
Preferably, the dispersant is polyoxyethylene ether, polyacrylamide, Sodium Polyacrylate, polymethylacrylic acid, 12
Sodium alkyl sulfonate, neopelex, wooden sodium sulfonate, enuatrol, oleyl amine acetate, Arabic gum, Guar
Glue, methylcellulose or ethyl cellulose.
The present invention makes nano-silver thread transparent conductive film have the function of that the shadow that disappears, principle exist by way of adding functional layer
In：Functional layer contains the surface treated metal nanoparticle with strong diffusing reflection, passes through the thickness tune to functional layer
It is whole, its mist degree can be made to be less than 0.1 with conductive layer difference, transparent conductive film electrode district functional layer obtained is covered by conductive layer,
Functional layer diffusing reflection is caused to disappear, functional layer itself mist degree disappears, and is shown as conductive layer mist degree；To which functional layer is exposed
Non-electrode region and the mist degree difference of the exposed electrode district of conductive layer are less than 0.1, eliminate the visual difference of electrode district and non-electrode region
Different, electrode district etching edge trace naked eyes are invisible.
Compared with prior art, the invention has the advantages that：
1, the present invention makes nano-silver thread transparent conductive film have the function of the shadow that disappears, electrode district by way of adding functional layer
It is completely disappeared with non-electrode region etching edge trace, method is simple and convenient to operate, and the advantage with high yield, high-reliability is suitble to
Industrialized production；And the method for the present invention has universality, is applicable to transparent the leading of nano-silver thread preparations all in the market
Electrolemma, and the preparation process without changing existing nano-silver thread transparent conductive film are not necessarily to additional equipment or material.
2, what is obtained by the method for the invention has the nano-silver thread transparent conductive film for the shadow function that disappears, and electrode district is in functional layer
Surface is coated with conductive layer, and function layer surface diffusing reflection is caused to be covered by conductive layer, while functional layer has high light transmittance, thoroughly
Bright conductive film good in optical property.
3, functional layer used in the present invention contains highly crosslinkable resin, is well combined with conductive layer, makes the weatherability of conductive film
It improves.
Description of the drawings
Fig. 1 is the structure chart of the nano-silver thread transparent conductive film in the specific embodiment of the invention with the shadow function that disappears；
Fig. 2 is the preparation flow of the nano-silver thread transparent conductive film in the specific embodiment of the invention with the shadow function that disappears
Figure；
Fig. 3 is the etching effect figure for the nano-silver thread transparent conductive film that 1 gained of the embodiment of the present invention has the shadow function that disappears；
Fig. 4 is the etching effect figure for the nano-silver thread transparent conductive film for not having the shadow function that disappears in comparative example of the present invention.
Specific implementation mode
It elaborates to the present invention with reference to embodiment, following embodiments are under based on the technical solution of the present invention
Implemented, give detailed embodiment and specific operating process, but protection scope of the present invention be not limited to it is following
Embodiment.
The verification method of nano-silver thread transparent conductive film, includes the following steps obtained by following embodiments：
It is transparent to gained nano-silver thread to lead using the method for existing universal UV exposures, etching development in following embodiments
Electrolemma carries out patterned process, its nano-silver thread transparency conducting layer is divided into two parts of electrode district and non-electrode region, with verification
Its shadow effect that disappears, is as follows：
A, fitting photoresist is carried out to electrically conducting transparent film；
B, the film for having required pattern (can be arbitrary graphic pattern when verification, required electrode pattern is specifically used when production) is put
It sets on photoresist surface；
C, transparent conductive film of the surface with the film is put into progress UV solidifications in exposure machine；
D, de- photoresist processing is carried out to non-exposed area (non-electrode region) by weak base；
E, acid etching technique is carried out to non-electrode region, the conductive layer of non-electrode region is removed, to make its functional layer expose；
F, highly basic is carried out to exposure area (electrode district) and takes off photoresist, then dried, conductive layer is made to be divided into electrode district and non-electrical
Patterned nano-silver thread electrically conducting transparent is made in polar region two parts, observes electrode area edge, to be confirmed whether to be made without etching
The conductive pattern of trace.
Wherein, the NaOH or KOH solution that non-electrode region degumming is mass concentration 0.2%-2% with weak base, electrode district are de-
The NaOH or KOH solution that glue is mass concentration 3%-10% with highly basic, etching liquid used in non-electrode region acid etching technique is by water 50-
90 parts, 5-25 parts of the hydrochloric acid of mass concentration 36%-38%, mass concentration 65%-68% 5-25 parts of nitric acid mix.
Embodiment 1
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.4kg water
Property nano zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg tenTwoSodium alkyl benzene sulfonate
Dispersion cylinder is sequentially added, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then it utilizes dimple to apply to lay
It is standby to be coated on the slurry is uniform in PET base material, pass through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water in mass ratio 1:2:2:The 995 uniform obtained conductive inks of mixing,
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nano-silver thread
Transparency conducting layer obtains nano-silver thread transparent conductive film.
The shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is verified as follows：
(1) etching liquid：Etching groove is added in 80kg water, is then slowly added to 10kg hydrochloric acid and 6kg nitric acid successively, to etching
Slot carries out Seal treatment, is then turned on etching groove and performs etching liquid cycle, until etching liquid is uniform；
(2) it patterns：It is covered with photoresist in conductive film surface using laminating machine, is then cut into 50cm × 50cm,
The film with specific pattern is placed on the electrically conducting transparent film with photoresist again, it is solid to be put into togerther exposure machine progress UV
Change；Then the transparent conductive film after curing to UV carries out 0.5wt%NaOH alkali cleanings and takes off non-electrode region photoresist, etching liquid pair successively
Non-electrode region etching, 5wt%NaOH take off electrode district photoresist, finally dry, and patterned nano-silver thread transparent conductive film is made.
Embodiment 2
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.4kg water
Property nano cuprous oxide DK407-1 (Beijing Deco island gold, grain size 40nm), 8.8kg water, 0.1kg neopelexes according to
Secondary addition dispersion cylinder disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then dimple coating apparatus is utilized
It is coated on the slurry is uniform in PET base material, passes through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 3
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.2kg water
Property nano aluminium oxide VK-L20W (the brilliant auspicious new material in Xuancheng, grain size 20nm), 0.2kg water nano zirconium dioxides VK-R30W (a surnames
The brilliant auspicious new material in city, grain size 30nm), 8.8kg water, 0.1kg neopelexes sequentially add dispersion cylinder, use is planetary
Gravity dispersion machine disperses 2min, and functional layer slurry is made；Then PET bases are coated on by the slurry is uniform using dimple coating apparatus
On material, functional layer is made by 100 DEG C of continuous tunnel furnace, 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 4
(1) prepared by functional layer：By 0.6kg epoxy emulsions Waterpoxy 1455,0.3kg curing agent Anquamine 721,
0.4kg water nano zirconium dioxides VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.6kg water, 0.1kg detergent alkylates
Sodium sulfonate sequentially adds dispersion cylinder, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then dimple is utilized
Coating apparatus is coated on the slurry is uniform in PET base material, passes through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 5
(1) prepared by functional layer：By 0.6kg epoxy emulsion DER-916,0.3kg curing agent WH-1000,0.4kg water nanos
Zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg neopelexes add successively
Enter dispersion cylinder, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；It then should using dimple coating apparatus
Slurry is uniform to be coated in PET base material, and functional layer is made by 100 DEG C of continuous tunnel furnace, 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 6
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 401-70,
0.4kg water nano zirconium dioxides VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg Sodium Polyacrylates
Dispersion cylinder is sequentially added, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then it utilizes dimple to apply to lay
It is standby to be coated on the slurry is uniform in PET base material, pass through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 7
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent N3390,0.4kg water nanos
Zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg methylcellulose sequentially add dispersion
Cylinder disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then utilize dimple coating apparatus that the slurry is equal
One is coated in PET base material, and functional layer is made by 100 DEG C of continuous tunnel furnace, 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 8
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent N3390,0.4kg water nanos
Titanium dioxide AS-PT9140 (Dongguan gloomy environmental protection difficult to understand, grain size 5-8nm), 8.8kg water, 0.1kg neopelexes add successively
Enter dispersion cylinder, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；It then should using dimple coating apparatus
Slurry is uniform to be coated in PET base material, and functional layer is made by 100 DEG C of continuous tunnel furnace, 15min drying；
(2) prepared by conductive layer：Nano-silver thread (is selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1 can city
Buy), Bayhydrol xp 2470, Sodium Polyacrylate, water is by the uniform obtained conduction of ratio mixing same as Example 1
The ink is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface using dimple coating process coating, forms nanometer by ink
Silver wire transparency conducting layer obtains nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Comparative example
By nano-silver thread (be selected from Hefei micro crystal material Science and Technology Ltd., model WJAG1, can market buy),
Bayhydrol xp 2470, Sodium Polyacrylate, water mix uniform obtained conductive ink in ratio same as Example 1, by this
Ink in PET base material, is dried using dimple coating process coating by 90 DEG C of continuous tunnel furnace, 20s, forms that nano-silver thread is transparent leads
Electric layer obtains idle ergosphere nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by this comparative example is tested
Patterned nano-silver thread transparent conductive film is made in card.
1~embodiment of embodiment 7 and the basic performance of nano-silver thread transparent conductive film obtained by comparative example are compared such as 1 institute of table
Show.
Table 1：1~embodiment of embodiment 7 is compared with comparative example basic performance
As shown in Table 1, the electricity for the nano-silver thread transparent conductive film that prepared by the different function layer formula of size of Examples 1 to 7
Polar region is less than 0.1 with non-electrode region mist degree difference, and electrode area edge naked eyes are invisible, reach the shadow purpose that disappears, and functional layer is to leading
Electrolemma light transmittance has no significant effect；And comparative example electrode district and the mist degree of non-electrode region difference are 0.6, electrode area edge is carved
It is apparent to lose trace.As it can be seen that the present invention by way of adding functional layer, can make nano-silver thread transparent conductive film have the shadow work(that disappears
Can, electrode district is completely disappeared with non-electrode region etching edge trace, and method is simple.
Embodiment 9
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.4kg water
Property nano zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg neopelexes
Dispersion cylinder is sequentially added, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then it utilizes dimple to apply to lay
It is standby to be coated on the slurry is uniform in PET base material, pass through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：By commercially available Gu Shi new materials GS-SNW-20 nano-silver threads, Bayhydrol xp 2470, gather
Sodium acrylate, water mix uniform obtained conductive ink in ratio same as Example 1, which is utilized dimple coating process
It is coated on function layer surface, is dried by 90 DEG C of continuous tunnel furnace, 20s, is formed nano-silver thread transparency conducting layer, that is, obtain nano-silver thread
Transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 10
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.4kg water
Property nano zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg neopelexes
Dispersion cylinder is sequentially added, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then it utilizes dimple to apply to lay
It is standby to be coated on the slurry is uniform in PET base material, pass through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：By commercially available Xuzhou victory innovative material section G586-2 nano-silver threads, Bayhydrol xp 2470,
Sodium Polyacrylate, water mix uniform obtained conductive ink in ratio same as Example 1, which is coated with work using dimple
Skill is coated on function layer surface, is dried by 90 DEG C of continuous tunnel furnace, 20s, forms nano-silver thread transparency conducting layer, that is, obtain nano silver
Line transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 11
(1) prepared by functional layer：By 0.4kg polyether polyol HSH360,0.3kg curing agent Bayhydur 305,0.4kg water
Property nano zirconium dioxide VK-R30W (the brilliant auspicious new material in Xuancheng, grain size 30nm), 8.8kg water, 0.1kg neopelexes
Dispersion cylinder is sequentially added, disperses 2min using planetary gravity dispersion machine, functional layer slurry is made；Then it utilizes dimple to apply to lay
It is standby to be coated on the slurry is uniform in PET base material, pass through 100 DEG C of continuous tunnel furnace, functional layer is made in 15min drying；
(2) prepared by conductive layer：By commercially available Chengdu Chong Yue new material MGT-NW-S20 nano-silver threads, Bayhydrol xp
2470, Sodium Polyacrylate, water mix uniform obtained conductive ink in ratio same as Example 1, which is utilized dimple
Coating process coating is dried by 90 DEG C of continuous tunnel furnace, 20s in function layer surface, forms nano-silver thread transparency conducting layer, that is, obtain
Nano-silver thread transparent conductive film.
By 1 identical method of embodiment, the shadow effect that disappears of nano-silver thread transparent conductive film obtained by the present embodiment is tested
Patterned nano-silver thread transparent conductive film is made in card.
Embodiment 1 and the basic performance of 9~embodiment of embodiment, 11 gained nano-silver thread transparent conductive film are compared such as 1 institute of table
Show.
Table 2：Embodiment 1 and the basic performance of 9~embodiment of embodiment 11 compare
As shown in Table 2, embodiment 1 and 9~embodiment of embodiment 11, are prepared using identical function layer and different nano-silver threads
The nano-silver thread transparent conductive film for preparing of conductive layer formula, electrode zone and non-electrode region mist degree difference be less than 0.1, electrode district side
Edge naked eyes are invisible, reach the shadow purpose that disappears, and functional layer has no significant effect conductive film light transmittance；As it can be seen that the side of the present invention
Method has universality, it is applicable to transparent conductive film prepared by nano-silver threads all in the market.
Embodiment described above is a small amount of citing of patent of the present invention, and not making any form to the present invention limits, ability
All technical staff in domain may be by the technical scope for not departing from the present invention in above-mentioned shown methods and techniques
Appearance makes modification or modification to the present invention program；In every case it is the content without departing from technical solution of the present invention, above-described embodiment is done
Any modification or modification gone out is within technical solution of the present invention protection domain.
Claims (8)
1. a kind of method for making nano-silver thread transparent conductive film that there is the shadow function that disappears, it is characterised in that：It is in base material and nano silver
Functional layer is added between line transparency conducting layer；
The functional layer is coated on substrate surface by functional layer slurry and is formed a film and obtain；
The functional layer slurry includes following component in parts by mass：
5-15 parts of resin film forming matter；
2-20 parts of metal nanoparticle；
60-92 parts of solvent；
1-5 parts of dispersant.
2. the method according to claim 1 for making nano-silver thread transparent conductive film that there is the shadow function that disappears, it is characterised in that：Institute
Function layer thickness is stated in 10nm-300nm, the diffusing reflection degree of functional layer is adjusted by adjusting function layer thickness, to make
It states functional layer and the mist degree difference of nano-silver thread transparency conducting layer is less than 0.1.
3. the method according to claim 1 or 2 for making nano-silver thread transparent conductive film have the shadow function that disappears, feature exist
In including the following steps：
A, dispersion cylinder is added in each component of function coating, is disperseed using planetary gravity dispersion machine or mechanical dispersion equipment
It is uniform, obtain functional layer slurry；
B, the functional layer slurry is coated on base material simultaneously baking and curing by the way that coating process is uniform, forms functional layer；
C, required nano-silver thread conductive ink is coated on function layer surface and baking and curing by the way that coating process is uniform, is formed
Nano-silver thread transparency conducting layer obtains the nano-silver thread transparent conductive film with the shadow function that disappears.
4. the method according to claim 3 for making nano-silver thread transparent conductive film that there is the shadow function that disappears, it is characterised in that：Step
Coating process is coated with for dimple described in rapid b：Heat curing temperature is 50-110 DEG C, hardening time 2-30min.
5. the method according to claim 1 or 2 for making nano-silver thread transparent conductive film have the shadow function that disappears, feature exist
In：The resin film forming matter is waterborne polyurethane resin or aqueous epoxy resins；
The waterborne polyurethane resin is mixed by polyether polyol and water-based isocyanate curing agent.
The aqueous epoxy resins are by aqueous epoxy emulsion Waterpoxy1455, DER-175, DER-916, W-95, WER-
One kind in W3002 is mixed with aqueous epoxy curing agent.
6. the method according to claim 1 or 2 for making nano-silver thread transparent conductive film have the shadow function that disappears, feature exist
In：The metal nanoparticle is water nano aluminium oxide, water nano titanium dioxide, water nano iron oxide, water nano
Zirconium dioxide, water nano cuprous oxide, water nano chrome green, water nano three aoxidize two tungsten, water nano oxidation
Cerium, water nano tin oxide, water nano nickel oxide, water nano antimony oxide, water nano molybdenum trioxide, water nano dioxy
Change one or both of manganese mixture；
The metal nanoparticle is spherical shape, grain size 5nm-50nm.
7. the method according to claim 1 or 2 for making nano-silver thread transparent conductive film have the shadow function that disappears, feature exist
In：The solvent is water or ethyl alcohol.
8. the method according to claim 1 or 2 for making nano-silver thread transparent conductive film have the shadow function that disappears, feature exist
In：The dispersant be polyoxyethylene ether, polyacrylamide, Sodium Polyacrylate, polymethylacrylic acid, dodecyl sodium sulfate,
Neopelex, wooden sodium sulfonate, enuatrol, oleyl amine acetate, Arabic gum, guar gum, Methyl cellulose
Element or ethyl cellulose.
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| CN111986850A (en) * | 2020-07-20 | 2020-11-24 | 深圳市善柔科技有限公司 | Silver nanowire film and preparation method thereof |
| CN112309634A (en) * | 2020-09-24 | 2021-02-02 | 苏州思尔维纳米科技有限公司 | Etching mark optimization method and conductive film |
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