CN104505150A - Transparent conducting film and preparation method thereof - Google Patents
Transparent conducting film and preparation method thereof Download PDFInfo
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- CN104505150A CN104505150A CN201410752033.1A CN201410752033A CN104505150A CN 104505150 A CN104505150 A CN 104505150A CN 201410752033 A CN201410752033 A CN 201410752033A CN 104505150 A CN104505150 A CN 104505150A
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Abstract
The invention discloses a transparent conducting film and a preparation method thereof. The transparent conducting film comprises a base material and a conducting layer which is arranged on the base material; the transparent conducting film is characterized in that the conducting layer is also coated with a film cover layer; the film cover layer is 3nm to 500nm in thickness and is prepared according to a method as follows: raw materials, in total mass percentage, comprise 0.2 to 15 percent of resin, 0 to 5 percent of an additive and the balance of a solvent; the raw materials are uniformly mixed to obtain a protective solution; the protective solution is coated on the conducting layer, dried and cured to form the film cover layer so as to obtain the transparent conducting film. According to the transparent conducting film disclosed by the invention, the film cover layer has the effect of remarkably increasing the adhesive force of the conducting layer and is especially effective when the conducting layer is poor in adhesive force; the conducting layer which is covered even is better in scratch resistance. More importantly, the conducting layer of the transparent conducting film is not reduced in conductivity and is even improved in conductivity at a suitable situation.
Description
Technical field:
The invention belongs to conducting film and manufacture field, be specifically related to a kind of nesa coating and preparation method thereof.
Background technology:
Nesa coating, particularly flexible transparent conducting film are a kind of important materials, are widely used in the fields such as touch-screen, touch switch, Smart Home.The traditional material being applied to electrically conducting transparent film production mainly ITO, its preparation method also mainly adopts the technology of physical coating.Adopt the mode of some low costs, as electric conducting material is made slurry, and then film forming, expensive equipment cost can be saved, too increase the flexibility of product design simultaneously.
Some electrically conducting transparent slurries, base material forms nesa coating after film forming.The adhesive force of this film on base material, depends on the content of resin in slurry usually, and the higher often adhesive force of its content is better, but can affect its electric conductivity.That is, when adopting this technology, adhesive force and resistance can be the contradiction being difficult to be in harmonious proportion.Particularly for ask for something superelevation adhesive force, or even requirement can the occasion of resistance to hard object scraping, and current technology is difficult to reach.
Summary of the invention:
The object of this invention is to provide a kind of conductive layer of nesa coating that can make and there is superelevation adhesive force, even resistance to hard object can swipe, and do not affect nesa coating of the electric conductivity of conductive layer and preparation method thereof.
Nesa coating of the present invention, comprise the conductive layer on base material and base material, it is characterized in that, also be coated with thin-film covering layer on the electrically conductive, described plastic film covering layer thickness is 3nm-500nm, described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%, comprise resin 0.2-15%, auxiliary agent 0-5%, surplus is solvent, obtain after raw material is mixed protecting liquid, protection liquid is coated on conductive layer, then dry solidification forms thin-film covering layer, thus obtain nesa coating;
Described solvent can be: the combination of one or several in water, alcohol, ether, ester, ketone, aldehyde, acid, aromatic hydrocarbon, aliphatic hydrocarbon, alicyclic, halogenated hydrocarbon, diol, derivatives and acetonitrile, pyridine, phenol.
Described auxiliary agent can be: the combination of one or several in alkyl sulfate, sulfonate, aliphatic acid or fatty acid ester sulfate, carboxylic soap class, polyamines class, Tweens, spans, polyethylene glycol oxide alkanisation ether, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer, aliphatic acid, phosphate, silanol, silicone oil, silane coupler.
Second object of the present invention is to provide a kind of preparation method of nesa coating, comprise base material, base material applies one deck conductive layer, it is characterized in that, also be coated with thin-film covering layer on the electrically conductive, described plastic film covering layer thickness is 3nm-500nm, described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%, comprise resin 0.2-15%, auxiliary agent 0-5%, surplus is solvent, obtain after raw material is mixed protecting liquid, protection liquid is coated on conductive layer, dry solidification forms thin-film covering layer again, thus obtain nesa coating,
Described solvent can be: the combination of one or several in water, alcohol, ether, ester, ketone, aldehyde, acid, aromatic hydrocarbon, aliphatic hydrocarbon, alicyclic, halogenated hydrocarbon, diol, derivatives and acetonitrile, pyridine, phenol;
Described auxiliary agent can be: the combination of one or several in alkyl sulfate, sulfonate, aliphatic acid or fatty acid ester sulfate, carboxylic soap class, polyamines class, Tweens, spans, polyethylene glycol oxide alkanisation ether, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer, aliphatic acid, phosphate, silanol, silicone oil, silane coupler.
Described resin can be: the combination of one or several in epoxy resin, mylar, silicones, phenolic resins, polyamide, vistanex, polyurethane resin, acrylic resin.
The THICKNESS CONTROL of thin-film covering layer is crucial, if blocked up, then cause the sheet resistance on whole device (or product) surface sharply to increase, even becomes insulation.If cross thin, then to the improvement DeGrain of adhesive force.The THICKNESS CONTROL of thin-film covering layer can (but being not limited to) be realized by the concentration of Control protection liquid, the mode such as coating process and number of times.
Described is also coated with thin-film covering layer on the electrically conductive, and its coating method can be the modes such as spraying, roller coating, volume to volume, spin coating, dip-coating, the tape casting, slot coated, blade coating or pad pasting.
Thin-film covering layer can conduct electricity, also can be non-conductive, and that is it can be conduction, semiconductor or insulating material.
The preparation of conductive layer belongs to known technology, and it is coated on base material by conduction liquid, and conduction liquid is made up of conductive materials, solvent, auxiliary agent.Wherein conductive materials can be (but being not limited to) metal nanometer line (as nano silver wire, copper nano-wire, silver-colored copper-clad nanometer) and the mixture with other electric conducting material (as carbon nanomaterial, conducting polymer, metal nanoparticle) thereof, and wherein solvent can be: the mixture of one or several in water, alcohol, ether, ester, ketone, aromatic hydrocarbon, aliphatic hydrocarbon, alicyclic, halogenated hydrocarbon, diol, derivatives and acetonitrile, pyridine, phenol; Auxiliary agent can be: alkyl sulfate, sulfonate, aliphatic acid or fatty acid ester sulfate, carboxylic soap class, phosphate, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, the combination of one or several in polyoxyethylene polyoxypropylene block copolymer, silanol, silane coupler.Conduction liquid also can add micro-resin, and resin can be: the combination of one or several in epoxy resin, mylar, silicones, phenolic resins, polyamide, polyolefin, polyurethane, acrylic resin.
Time thin-film covering layer of the present invention not only significantly can strengthen the adhesive force, particularly conductive layer of conductive layer poor adhesive force own, particularly effectively, the conductive layer after covering, has good scraping and wiping resistance performance.What is more important, the electric conductivity of the conductive layer of nesa coating itself not only can not reduce, and in the situation that condition is suitable, its electric conductivity can also improve.Because the contraction of thin-film covering layer, the distance in the conductive layer that furthered between conducting particles.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of nesa coating of the present invention;
Wherein 1, base material; 2, conductive layer; 3, thin-film covering layer.
Embodiment:
Following examples further illustrate of the present invention, instead of limitation of the present invention.
Embodiment 1:
As shown in Figure 1, the nesa coating of the present embodiment comprises sequentially stacked three layers, the base material 1 of bottom, the conductive layer 2 in intermediate layer and the thin-film covering layer 3 on upper strata, and its concrete preparation method is:
Select diameter to be about 40nm, the nano silver wire (Ag nanowires) that length is about 30 μm mixes with isopropyl alcohol, is configured to the conduction slurries that nano silver wire content is 3.0mg/mL.Be spread evenly across in clear glass substrate by conduction slurries, coating thickness is about 10 μm, is placed on baking oven, dries, form conductive layer on the glass substrate through 100 DEG C, 5 minutes.Until gained with the glass cools of conductive layer after; then even application thin film cover layer; described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%; comprise polyurethane resin 0.2%; polyoxyethylene alkylphenol 0.1%; surplus is ethanol; obtain after raw material is mixed protecting liquid; protection liquid is sprayed on conductive layer; control wet coating thickness and be about 4 μm, be positioned in baking oven, carried out dry solidification through 130 DEG C, 30 minutes; form the thin film cover layer that about 3nm is thick, thus obtain nesa coating.Its performance of nesa coating is as follows: transmitance is 88%, and sheet resistance is worth 45 Ω/, carries out hundred lattice tests, reach 5B level to its adhesive force by ASTM D3359 standard.
Embodiment 2:
As shown in Figure 1, the nesa coating of the present embodiment comprises sequentially stacked three layers, the base material 1 of bottom, the conductive layer 2 in intermediate layer and the thin-film covering layer 3 on upper strata, and its concrete preparation method is:
Select diameter to be about 40nm, the nano silver wire (Ag nanowires) that length is about 30 μm mixes with isopropyl alcohol, is configured to the conduction slurries that nano silver wire content is 3.0mg/mL.Be spread evenly across in clear glass substrate by conduction slurries, coating thickness is about 10 μm, is placed on baking oven, dries, form conductive layer on the glass substrate through 100 DEG C, 5 minutes.Until gained with the glass cools of conductive layer after; then even application thin film cover layer; described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%; comprise polyurethane resin 2.5%; polyoxyethylene alkylphenol 1%; surplus is ethanol; obtain after raw material is mixed protecting liquid; protection liquid is sprayed on conductive layer; control wet coating thickness and be about 5 μm, be positioned in baking oven, carried out dry solidification through 130 DEG C, 30 minutes; formed and be about the thick thin film cover layer of 100nm, thus obtain nesa coating.Its performance of nesa coating is as follows: transmitance is 84%, and sheet resistance is worth 60 Ω/, carries out hundred lattice tests, reach 5B level to its adhesive force by ASTM D3359 standard.
Embodiment 3:
As shown in Figure 1, the nesa coating of the present embodiment comprises sequentially stacked three layers, the base material 1 of bottom, the conductive layer 2 in intermediate layer and the thin-film covering layer 3 on upper strata, and its concrete preparation method is:
Select diameter to be about 40nm, the nano silver wire (Ag nanowires) that length is about 30 μm mixes with isopropyl alcohol, is configured to the conduction slurries that nano silver wire content is 3.0mg/mL.Be spread evenly across in clear glass substrate by conduction slurries, coating thickness is about 10 μm, is placed on baking oven, dries, form conductive layer on the glass substrate through 100 DEG C, 5 minutes.Until gained with the glass cools of conductive layer after; then even application thin film cover layer; described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%; comprise polyurethane resin 15%; surplus is ethanol; obtain after raw material is mixed protecting liquid; protection liquid is sprayed on conductive layer; control coating thickness and be about 4 μm; be positioned in baking oven; carried out dry solidification through 130 DEG C, 30 minutes, formed and be about the thick thin film cover layer of 500nm, thus obtain nesa coating.Its performance of nesa coating is as follows: transmitance is 85%, and sheet resistance value 1K Ω/ carries out hundred lattice tests to its adhesive force by ASTM D3359 standard, reaches 5B level.
Embodiment 4:
As shown in Figure 1, the nesa coating of the present embodiment comprises sequentially stacked three layers, the base material 1 of bottom, the conductive layer 2 in intermediate layer and the thin-film covering layer 3 on upper strata, and its concrete preparation method is:
Select diameter to be about 40nm, the nano silver wire (Ag nanowires) that length is about 30 μm mixes with isopropyl alcohol, is configured to the conduction slurries that nano silver wire content is 3.0mg/mL.Be spread evenly across in clear glass substrate by conduction slurries, coating thickness is about 10 μm, is placed on baking oven, dries, form conductive layer on the glass substrate through 100 DEG C, 5 minutes.Until gained with the glass cools of conductive layer after; then even application thin film cover layer; described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%; comprise polyurethane resin 1%; polyoxyethylene alkylphenol 5%; surplus is ethanol; obtain after raw material is mixed protecting liquid; protection liquid is sprayed on conductive layer; control wet coating thickness and be about 5 μm, be positioned in baking oven, carried out dry solidification through 130 DEG C, 30 minutes; form the thin film cover layer that about 200nm is thick, thus obtain nesa coating.Its performance of nesa coating is as follows: transmitance is 80%, and sheet resistance is worth 70 Ω/, carries out hundred lattice tests, reach 5B level to its adhesive force by ASTM D3359 standard.
Claims (5)
1. a nesa coating, comprise the conductive layer on base material and base material, it is characterized in that, also be coated with thin-film covering layer on the electrically conductive, described plastic film covering layer thickness is 3nm-500nm, described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%, comprise resin 0.2-15%, auxiliary agent 0-5%, surplus is solvent, obtain after raw material is mixed protecting liquid, protection liquid is coated on conductive layer, then dry solidification forms thin-film covering layer, thus obtain nesa coating;
Described solvent is the combination of one or several in water, alcohol, ether, ester, ketone, aldehyde, acid, aromatic hydrocarbon, aliphatic hydrocarbon, alicyclic, halogenated hydrocarbon, diol, derivatives and acetonitrile, pyridine, phenol;
Described auxiliary agent is the combination of one or several in alkyl sulfate, sulfonate, aliphatic acid or fatty acid ester sulfate, carboxylic soap class, polyamines class, Tweens, spans, polyethylene glycol oxide alkanisation ether, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer, aliphatic acid, phosphate, silanol, silicone oil, silane coupler.
2. nesa coating according to claim 1, it is characterized in that, described resin is the combination of one or several in epoxy resin, mylar, silicones, phenolic resins, polyamide, vistanex, polyurethane resin, acrylic resin.
3. the preparation method of a nesa coating according to claim 1, comprise base material, base material applies one deck conductive layer, it is characterized in that, also be coated with thin-film covering layer on the electrically conductive, described plastic film covering layer thickness is 3nm-500nm, described thin-film covering layer is prepared by the following method: raw material: by gross mass mark 100%, comprise resin 0.2-15%, auxiliary agent 0-5%, surplus is solvent, obtain after raw material is mixed protecting liquid, protection liquid is coated on conductive layer, dry solidification forms thin-film covering layer again, thus obtain nesa coating,
Described solvent is the combination of one or several in water, alcohol, ether, ester, ketone, aldehyde, acid, aromatic hydrocarbon, aliphatic hydrocarbon, alicyclic, halogenated hydrocarbon, diol, derivatives and acetonitrile, pyridine, phenol;
Described auxiliary agent is the combination of one or several in alkyl sulfate, sulfonate, aliphatic acid or fatty acid ester sulfate, carboxylic soap class, polyamines class, Tweens, spans, polyethylene glycol oxide alkanisation ether, polyoxyethylated alkyl phenol, polyoxyethylene aliphatic alcohol ether, polyoxyethylene polyoxypropylene block copolymer, aliphatic acid, phosphate, silanol, silicone oil, silane coupler.
4. preparation method according to claim 3, is characterized in that, described resin is the combination of one or several in epoxy resin, mylar, silicones, phenolic resins, polyamide, vistanex, polyurethane resin, acrylic resin.
5. preparation method according to claim 3, is characterized in that, described is also coated with thin-film covering layer on the electrically conductive, and its coating method is spraying, roller coating, volume to volume, spin coating, dip-coating, the tape casting, slot coated, blade coating or pad pasting.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105348884A (en) * | 2015-12-08 | 2016-02-24 | 常熟市裕茗企业管理咨询有限公司 | Refueling measurement detection device |
| CN109722096A (en) * | 2018-01-03 | 2019-05-07 | 厦门蓝科电子科技有限公司 | A kind of spary coating type protection ink and preparation method thereof |
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| CN102737755A (en) * | 2011-04-06 | 2012-10-17 | 索尼公司 | Transparent conductive element and transparent conductive element manufacturing method |
| CN103456392A (en) * | 2013-08-27 | 2013-12-18 | 南昌欧菲光科技有限公司 | Transparent electric conductor and manufacturing method thereof |
| CN103650067A (en) * | 2011-06-24 | 2014-03-19 | 株式会社可乐丽 | Method for forming conductive film, conductive film, insulation method, and insulation film |
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Patent Citations (5)
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| JP2009205924A (en) * | 2008-02-27 | 2009-09-10 | Kuraray Co Ltd | Transparent conductive film, transparent conductive member, and silver nano wire dispersion solution and manufacturing method of transparent conductive film |
| CN102574388A (en) * | 2009-11-11 | 2012-07-11 | 东丽株式会社 | Electroconductive laminate and process for production thereof |
| CN102737755A (en) * | 2011-04-06 | 2012-10-17 | 索尼公司 | Transparent conductive element and transparent conductive element manufacturing method |
| CN103650067A (en) * | 2011-06-24 | 2014-03-19 | 株式会社可乐丽 | Method for forming conductive film, conductive film, insulation method, and insulation film |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105348884A (en) * | 2015-12-08 | 2016-02-24 | 常熟市裕茗企业管理咨询有限公司 | Refueling measurement detection device |
| CN109722096A (en) * | 2018-01-03 | 2019-05-07 | 厦门蓝科电子科技有限公司 | A kind of spary coating type protection ink and preparation method thereof |
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