CN105161220B - A kind of preparation method of the silver-colored conductive film of high temperature resistant - Google Patents
A kind of preparation method of the silver-colored conductive film of high temperature resistant Download PDFInfo
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- CN105161220B CN105161220B CN201510646221.0A CN201510646221A CN105161220B CN 105161220 B CN105161220 B CN 105161220B CN 201510646221 A CN201510646221 A CN 201510646221A CN 105161220 B CN105161220 B CN 105161220B
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Abstract
The invention discloses a kind of preparation of the silver-colored conductive film of high temperature resistant, its preparation process is：Substrate is cleaned, dried and plasma treatment；One layer of heterocyclic polymer binding agent, drying are coated on substrate；Nano silver wire conductive ink is coated on tack coat, silver-colored conductive network is obtained after drying；A kind of novel conductive film is obtained by heterocyclic polymer adhesive coated on conductive network, after drying.The conductive film has used new type heterocycle high polymer binder, and the performance such as its heat-resisting quantity, electric conductivity, translucency, mist degree preferably, is adapted to use in electronic information field.
Description
Technical field
The invention belongs to transparent conductive film technical field, and in particular to a kind of preparation of the silver-colored conductive film of high temperature resistant.
Background technology
Nano silver wire conductive film is by its excellent electrical and thermal conductivity, translucency etc. as touch-screen, display etc.
The preferable conductive film of electronic information field.At present, the conventional preparation process of nano silver wire conductive film is：(1) on substrate
Coat one layer of primary coat binding agent, drying；(2) nano silver wire conductive ink is coated on substrate, silver-colored conductive mesh is obtained after drying
Network；(3) top coat protective layer is coated on silver-colored conductive network, nano silver wire conductive film is obtained after drying.Conventional primary coat is bonded
Agent has epoxy resin, acrylate, acrylic resin, polyester resin, polyamide, polyurethane resin, polyimides
The materials such as resin, polyvinyl alcohol resin, polyketone resin, phenolic resin, silane coupler, titanate coupling agent.And top coat is protected
Layer is then varied, and it is (poly- that UV glue, resin is respectively adopted in such as patent CN104658700A, CN102522145A, CN102522145B
Ester, polyurethane, epoxy resin etc.), conducting polymer PEDOT：PSS solution is used as top-coat material.
But these primary coats and top-coat material have a common drawback：Resistance to elevated temperatures is bad.When ambient temperature is higher, this
A little materials may melt or deform, so that conductive film performance drastically declines.So, the silver prepared with these materials is conductive
Film is not suitable for using in the higher environment of some temperature, then causes the blank of the silver-colored conductive film of high temperature resistant.But some temperature
The higher environment of degree needs again can resistant to elevated temperatures conductive film.
Therefore, the problem of resistant to elevated temperatures silver-colored transparent conductive film of exploitation energy is transparent conductive film field urgent need to resolve.
The content of the invention
It is an object of the invention to provide a kind of preparation of the silver-colored conductive film of high temperature resistant, resin used in current thin film is solved not
Resistant to elevated temperatures problem.The film has the advantages that resistance to elevated temperatures is good, electric conductivity is high, light transmittance is high, good with substrate associativity, system
It is standby simple, electronic information field can be widely used in.Its specific embodiment is：
(1) substrate is cleaned, dried and plasma treatment；
(2) one layer of heterocyclic polymer binding agent, drying are coated on substrate；
(3) nano silver wire conductive ink is coated on tack coat, silver-colored conductive network is obtained after drying；
(4) a kind of resistant to elevated temperatures silver-colored conductive thin is obtained by heterocyclic polymer adhesive coated on conductive network, after drying
Film.
The substrate that the present invention is used is polyethylene terephthalate (PET), dimethyl silicone polymer (PDMS), poly- carbon
One kind in acid esters, polyimides (PI) or glass；
(1) the cleaning of substrate in, drying is with plasma treatment process：The diaphragm newly bought on substrate is torn off, by it
Ultrasound 5 minutes respectively are put into acetone, ethanol.Then substrate is toasted 5 minutes with infrared baking lamp.Substrate is taken out, is put
Enter in plasma cleaner, vacuum cleaned 5 minutes.Wherein, the power of the infrared baking lamp used is that 800W, drying area are
1000cm2；Frequency/power of the plasma cleaner used is 13.56MHz/300W；
With one layer of tack coat of heterocyclic polymer adhesive coated of 5% concentration on the substrate that (1) is treated, thickness exists
300nm or so.Heterocyclic polymer binding agent used is polybenzimidazoles adhesive (polybenzimidazoles pyrrolidones), poly- oxazoline
One or more of mixing in the high temperature resistant binders such as binding agent, polyarylsulfone (PAS) binding agent, poly- secondary diphenyl sulfide binding agent.Coating makes
It is Gardco Automatic Drawdown Machine DP8301 sheet type coating machines, also including other coating machines
Device.After the completion of coating, first toasted 5 minutes, then dried 10 minutes at 150 DEG C of vacuum in vacuum drying oven with infrared baking lamp；
One layer of nano silver wire coating fluid is coated on the basis of (2).Then, first toasted 3 minutes with infrared baking lamp.Then use
It is dried in vacuo 10 minutes at 110 DEG C of vacuum drying oven, obtains nano silver wire network of the thickness for 200nm or so.Nano silver wire ink
It is homemade.Nano silver wire diameter is between 30-50nm, and length is between 10-20 μm.Ink silver wire content is 0.5% or so.
In addition to silver wire, ink is also containing auxiliary agents such as dispersant, surfactant, levelling agent, NMF and binding agents；
Heterocyclic polymer binding agent used in step (4) is polybenzimidazoles adhesive (polybenzimidazoles pyrrolidones), gathered
One or more of mixing in the high temperature resistant binders such as oxazoline binding agent, polyarylsulfone (PAS) binding agent, poly- secondary diphenyl sulfide binding agent.
The amount of coating is controlled, it is 150nm or so to make final top coat thickness；
After heterocyclic polymer adhesive coated, 3 minutes are first toasted with infrared baking lamp, then with 150 DEG C of vacuum drying oven
Toasted 10 minutes under vacuum, obtain the silver-colored conductive film of final high temperature resistant；
The binding agent that the present invention is used is some special high temperature-resistant binding agents, is avoided that conventional binding agent in temperature with them
The problem of melting or deform when degree is higher.Thus, the film prepared with them can be used in the environment of some higher temperatures；
The present invention has the following advantages：(1) the silver-colored transparent conductive film that the use of high temperature resistant binder prepares us has excellent
Different resistance to elevated temperatures, can be used for some special occasions and high-end electronic product；(2) top coat and primary coat allows conductive film and substrate
Adhesion it is good, its defencive function makes membrane life time long；(3) filling between silver wire network reduces the scattering of light, thus production
Product mist degree is low；(4) film conductivity and light transmittance are good, have broad application prospects.
Brief description of the drawings
Fig. 1：The structural representation of the present invention；
1- substrates；2- high temperature resistant bondings layer；3- silver conductive networks；4- high temperature resistant bondings layer；Wherein, 3 and 4 layers have part weight
It is folded.
Specific embodiment
Embodiment：
Substrate is used as using PET.Diaphragm on new substrate is torn off, put it into ultrasonic 5 points respectively in acetone, ethanol
Clock.Then dried with infrared baking lamp.Then put it into plasma cleaner, vacuum cleaned 5 minutes；
Coated on treated substrate with Gardco Automatic Drawdown Machine DP8301 sheet types
Machine coats the polybenzimidazole adhesive of the concentration of last layer 5%.Then, first toasted 5 minutes with infrared baking lamp, then in vacuum
Dried 10 minutes at 150 DEG C of vacuum in baking oven.Obtain tack coat of a layer thickness in 300nm or so left and right；
One layer of nano silver wire solution is coated on tack coat, is first toasted 3 minutes with infrared baking lamp, then use vacuum drying oven
It is dried in vacuo 10 minutes at 110 DEG C, obtains nano silver wire network of the thickness in 200nm or so.Nano silver wire ink is homemade.
Nano silver wire diameter is between 30-50nm, and length is between 10-20 μm.Ink silver wire content is 0.5% or so.Except silver wire
Outside, ink is also containing auxiliary agents such as a small amount of dispersant, surfactant, levelling agent, NMF and binding agents；
Polybenzimidazole adhesive solution is coated on silver-colored conductive network.First with infrared baking lamp baking 3 minutes, then
Toasted 10 minutes with 150 DEG C of vacuum of vacuum drying oven, obtain the thick protective layers of 150nm.In summary each step obtains final resistance to
High temperature silver transparent conductive film.
Presently preferred embodiments of the present invention described in detail above.It should be appreciated that one of ordinary skill in the art is without wound
The property made work just can make many modifications and variations according to the design of the present invention.All technical staff Yi Benfa in the art
Bright design passes through the available experiment of logical analysis, reasoning, or a limited experiment and technology on the basis of existing technology
Scheme, all should be in the protection domain being defined in the patent claims.
Claims (1)
1. the preparation method of the silver-colored conductive film of a kind of high temperature resistant, it is characterised in that specifically preparation process is：
(1) diaphragm on substrate is torn off, then places the substrate into acetone, ethanol and distinguish ultrasound 5 minutes, after cleaning
Substrate be placed on toasted 5 minutes under infrared baking lamp after lie in plasma processor, open machine to 5 points of substrate processing
Clock；The substrate is polyethylene terephthalate (PET), dimethyl silicone polymer (PDMS), makrolon, polyimides
(PI) one kind or in glass；
(2) one layer of heterocyclic polymer binding agent is coated on substrate, is first toasted 5 minutes, is then dried in vacuum with infrared baking lamp
Dried 10 minutes at 150 DEG C of vacuum in case, obtain a layer thickness 300nm tack coat；The heterocyclic polymer binding agent is poly-
One in benzimidazole adhesive, poly- oxazoline binding agent, polyarylsulfone (PAS) binding agent, poly- diphenyl sulfide binding agent high temperature resistant binder
Plant or several mixing；
(3) nano silver wire conductive ink is coated on tack coat, silver-colored conductive network is obtained after drying；Nano silver wire used is
Homemade, diameter is between 30-50nm, and length is between 10-20 μm；Ink silver wire content is 0.5%；In addition to silver wire, ink
Also contain dispersant, surfactant, levelling agent, NMF and binding agent；After ink coating, first 3 are toasted with infrared baking lamp
Minute；Then heated baking 10 minutes at vacuum drying oven, 110 DEG C of vacuum are placed the substrate into, thickness 200nm silver-colored conductive mesh is obtained
Network；
(4) 3 minutes are first toasted by top coat heterocyclic polymer adhesive coated on silver-colored conductive network, with infrared baking lamp, then
Toasted 10 minutes with 150 DEG C of vacuum of vacuum drying oven, obtain the silver-colored conductive film of final high temperature resistant；Top coat heterocycle high score used
Sub- binding agent is polybenzimidazoles adhesive, poly- oxazoline binding agent, polyarylsulfone (PAS) binding agent, poly- diphenyl sulfide binding agent high temperature resistant
One or more of mixing in binding agent.
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| CN201510646221.0A CN105161220B (en) | 2015-10-09 | 2015-10-09 | A kind of preparation method of the silver-colored conductive film of high temperature resistant |
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| CN201510646221.0A CN105161220B (en) | 2015-10-09 | 2015-10-09 | A kind of preparation method of the silver-colored conductive film of high temperature resistant |
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| CN105161220B true CN105161220B (en) | 2017-10-17 |
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| CN105895196B (en) * | 2016-04-07 | 2018-02-16 | 江苏三月光电科技有限公司 | A kind of novel transparent conductive film and preparation method thereof |
| CN110942843A (en) * | 2019-10-23 | 2020-03-31 | 清远高新华园科技协同创新研究院有限公司 | Polymer conductive film for electric automobile, production equipment and preparation method |
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| JP5099893B2 (en) * | 2007-10-22 | 2012-12-19 | 日東電工株式会社 | Transparent conductive film, method for producing the same, and touch panel provided with the same |
| CN101186128A (en) * | 2007-10-29 | 2008-05-28 | 福建师范大学 | High temperature resistant high photics reflexive conductive film and preparation method thereof |
| CN101239518B (en) * | 2007-12-26 | 2011-12-07 | 中国科学院苏州纳米技术与纳米仿生研究所 | Composite coating material and preparation thereof |
| CN101697288A (en) * | 2009-10-13 | 2010-04-21 | 福建师范大学 | Transparent conductive film of metal silver/metal oxide and preparation method thereof |
| CN101709029B (en) * | 2009-11-16 | 2013-01-02 | 清华大学 | Polybenzimidazole material and midbody organic diacid thereof as well as preparation methods thereof |
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| CN103903817B (en) * | 2014-03-18 | 2016-04-13 | 中科院广州化学有限公司南雄材料生产基地 | A kind of preparation method of transparent conductive film and application thereof |
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