CN1580150A - Method for preparing polyaniline conductive ink - Google Patents
Method for preparing polyaniline conductive ink Download PDFInfo
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- CN1580150A CN1580150A CN 200410047750 CN200410047750A CN1580150A CN 1580150 A CN1580150 A CN 1580150A CN 200410047750 CN200410047750 CN 200410047750 CN 200410047750 A CN200410047750 A CN 200410047750A CN 1580150 A CN1580150 A CN 1580150A
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- polyaniline
- printing ink
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- conductivity printing
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Abstract
The production process of the polyaniline electrically conductive ink is composed of a process for obtaining a polyaniline colloid by polymerization of aniline in an aqueous medium at least in the presence of an anionic surfactant, a process for separating into two layers by adding at least one organic solvent to the reaction solution after the polymerization to migrate the polyaniline colloid to the organic layer, and a process for removing the aqueous layer.
Description
Technical field
The application's invention relates to the preparation method of polyaniline conductivity printing ink.In more detail, the application's invention relates to a kind of simple and convenient process for preparing that can be transferred to the polyaniline conductivity printing ink of organic layer at the polyaniline colloid that does not need will obtain by the polymerization in the aqueous solvent through operation such as cohesion, separation, washing.
Background technology
In the past, polyaniline conductivity printing ink is by in the presence of aniorfic surfactant, in aqueous solvent, make aniline polymerization, the polyaniline colloid that obtains is condensed and make (for example patent documentation 1-spy opens flat 6-279584,2-spy opens 2001-049170).
In the preparation method of this polyaniline conductivity printing ink, because the polyaniline colloid that forms in the presence of aniorfic surfactant is the particle diameter very little (for example tens of nm～a few μ m) of particle not only, and aniorfic surfactant improved the intermiscibility of polyaniline colloid and aqueous solvent, therefore exists to be difficult to the polyaniline colloid is separated the problem of removing from aqueous solvent.
Therefore,, need in polymeric reaction solution, add a large amount of amphoteric solvents such as alcohols, behind the polyaniline coacervation of colloid, remove solvent by separation such as centrifugations in order from contain polyaniline colloidal polymeric reaction solution, to isolate the polyaniline colloid.And, for the polyaniline colloid is transferred to the organic solvent from aqueous solvent, need in the polyaniline colloid, add amphoteric solvent and the synthetic resin solution bigger than water affinity.
Therefore, the operation of the preparation method of former polyaniline conductivity printing ink needs is many and loaded down with trivial details.And, with this loaded down with trivial details preparation method, there is the very high problem of polyaniline conductivity printing ink cost.
Summary of the invention
Therefore, in view of the above fact, the application's invention is a problem with the method that provides a kind of polyaniline colloid that solves prior art problems, made by the polyreaction in aqueous solvent to prepare conductive ink easily.
The application's invention is as the invention that solves above-mentioned problem, first, a kind of preparation method of polyaniline conductivity printing ink is provided, it is characterized in that comprising at least: in the presence of aniorfic surfactant, in aqueous solvent, aniline polymerization made polyaniline colloidal operation; Add the organic solvent more than a kind in the reaction soln after polyreaction finishes, separates two is transferred to the polyaniline colloid operation of organic layer; With the operation of removing water layer.
In addition, the application's invention, the second, a kind of preparation method of above-mentioned polyaniline conductivity printing ink is provided, wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes contains the adhesive resin more than a kind.
The application's invention, the 3rd, a kind of preparation method of above-mentioned polyaniline conductivity printing ink is provided, and wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes contains any material in ultraviolet hardening monomer more than a kind, ultraviolet hardening oligopolymer, their mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture.
Further, the application's invention, the 4th, a kind of preparation method of above-mentioned polyaniline conductivity printing ink is provided, wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes is except containing more than a kind the adhesive resin, also contains any material in ultraviolet hardening monomer more than a kind, ultraviolet curing oligomers, their mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture.
The application's invention, the 5th, the preparation method of above-mentioned any one polyaniline conductivity printing ink is provided, it is characterized in that, after removing the operation of water layer, comprise solvent that adds adhesive resin, evaporation organic layer and the operation that adds organic solvent again.
And, the application's invention, the 6th, the polyaniline conductivity printing ink by above-mentioned any one method preparation is provided.
Preparation method according to the above-mentioned first polyaniline conductivity printing ink of inventing, owing to can just isolate the polyaniline colloid without cohesion, thereby the polyaniline colloid that obtains by the polyreaction in aqueous solvent can be transferred in the organic system with primary particle or the particle state with particle diameter of equal size, and can make polyaniline conductivity printing ink with process number seldom.Therefore, the productivity of polyaniline conductivity printing ink significantly improves.In addition, with the preparation method of this polyaniline conductivity printing ink, owing to do not contain offspring, three particles in the printing ink, the polyaniline colloidal dispersiveness in the gained polyaniline conductivity printing ink is very good.
In addition, according to the preparation method of the above-mentioned second polyaniline conductivity printing ink of inventing, can obtain containing the polyaniline conductivity printing ink of polyaniline colloid and adhesive resin easily.By this method, can make anti-electrostatic, the anti-charged polyaniline conductivity printing ink of filming that is applicable to the coating that utilizes photogravure, flexographic printing, dipping processing, utilize coating machine etc., offset printing, silk screen printing etc.
And, preparation method according to the above-mentioned the 3rd polyaniline conductivity printing ink of inventing, can pass through less process number, make and contain ultraviolet hardening monomer more than a kind, ultraviolet hardening oligopolymer, their the polyaniline conductivity printing ink of mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture.The polyaniline conductivity printing ink that obtains by this method becomes ultraviolet hardening or electronic beam solidified polyaniline conductivity printing ink.
According to the preparation method of polyaniline conductivity printing ink of above-mentioned the 4th invention, can make easily and contain adhesive resin and contain ultraviolet hardening monomer more than a kind, ultraviolet hardening oligopolymer, their the polyaniline conductivity printing ink of mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture simultaneously.And the polyaniline conductivity printing ink that obtains by this method becomes ultraviolet hardening or electronic beam solidified polyaniline conductivity printing ink.
And, preparation method according to the above-mentioned the 5th polyaniline conductivity printing ink of inventing, after removing water layer, in having shifted polyaniline colloidal organic layer, add adhesive resin, remove then and desolvate, add organic solvent once more, can regulate the concentration of solids component in the polyaniline conductivity printing ink.Therefore, can make anti-electrostatic, the anti-charged polyaniline conductivity printing ink of filming that is applicable to the coating that utilizes photogravure, flexographic printing, dipping processing, utilize coating machine etc., offset printing, silk screen printing etc.
And, preparation method with above-mentioned polyaniline conductivity printing ink, because the polyaniline colloid that utilizes the polyreaction in the aqueous solvent to obtain does not condense, be transferred in the organic system with primary particle or particle state with equal big small particle size, the polyaniline colloid dispersiveness that contains in the polyaniline conductivity printing ink of above-mentioned the 6th invention is very high.Therefore, under the situation that is used to print etc., can form conductive membrane stable, homogeneous.
Embodiment
The preparation method of the polyaniline conductivity printing ink of the application's invention comprises at least:
(1) in the presence of aniorfic surfactant, in aqueous solvent, aniline polymerization made polyaniline colloidal operation (polymerization process),
(2) add organic solvent more than a kind in the reaction soln after polyreaction finishes, separates two, with the polyaniline colloid be transferred to organic layer operation (transfering process) and
(3) remove the operation (separation circuit) of water layer.Can also comprise in addition
(4) in organic layer, add adhesive resin.If necessary, the solvent of evaporation organic layer, add the operation (redispersion operation) of organic solvent once more.
Among the preparation method of the polyaniline conductivity printing ink of the application's invention, the aniorfic surfactant that uses in the polymerization process has protonic acid and two kinds of effects of tensio-active agent, there is no particular limitation for its kind, can be the various tensio-active agents that use as tensio-active agent in polyaniline is synthetic.Specifically, preferred examples is chain alkyl Phenylsulfonic acids such as Witco 1298 Soft Acid.In addition, as aqueous solvent, example that water or water and alcohol or acetone etc. are arranged with the mixed system high organic solvent of water dissolubility, from the angle of cost and processing ease, preferably make water.In addition, there is no particular limitation to aniline, as long as produce the polyaniline of electroconductibility after the polymerization.For example, can enumerate the N-alkyl benzene amine, N, various materials such as accelerine, the amino pyrene of 1-, O-Phenylene Diamine.These aniline form contraposition bonded straight chain polymer end to end basically after the polymerization, the polyaniline that obtains by polyreaction can also be that nitrogen-atoms is amine and the imines of the state of oxidation or the structure of adding proton on it of reduced state.In addition, there is no particular limitation to the molecular weight of the polyaniline that obtains by polyreaction, can carry out suitable adjustment according to the purposes of polyaniline conductivity printing ink.
In addition, in above polymerization process, can contain the polymerizing catalyst that is useful on the polyreaction that promotes aniline in the polymeric reaction solution.Particularly, can enumerate oxygenants such as ammonium persulphate, aqueous hydrogen peroxide solution, iron(ic) chloride, wherein preferred cheap and handle easier ammonium persulphate.In addition, in the polyreaction of polyaniline, temperature of reaction can be for example 0～45 ℃.Certainly, also can suitably change according to the kind and the concentration of solvent types or aniline, tensio-active agent and oxygenant.
By this polymerization process, obtain the polyaniline colloid with the state that is dispersed in the aqueous solvent.Like this, in transfering process, in polymeric reaction solution, add the organic solvent more than a kind, the polyaniline colloid is transferred in the organic layer.So can remove aniorfic surfactant residual in the polymeric reaction solution, need not the cohesion and simply the polyaniline colloid is transferred in the organic layer.
There is no particular limitation to the organic solvent that adds in transfering process, so long as, two separate little with the intermiscibility of above-mentioned aqueous solvent gets final product.Specifically, can add a kind or add the solvent of ketones solvents such as ether solvent, methyl ethyl ketone, diisobutyl acetone such as the esters solvent be selected from varsols such as toluene, dimethylbenzene, ethyl acetate, butylacetate etc. more than 2 kinds, ether, dipropyl ether etc. as mixed solvent separately.In addition, there is no particular limitation to the amount of the organic solvent that adds.Preferred range changes according to the conditions such as concentration of aniline, aniorfic surfactant in the polymeric reaction solution.For example, under the condition of following embodiment 1, when adding the organic solvent of 5～570mL, can guarantee that water layer and organic layer muddiness can not occur, reach two separate with respect to the 1mM polyaniline.
In transfering process, by in polymeric reaction solution, adding organic solvent more than a kind, reaction solution is separated into organic layer and water layer is two-layer, at this moment, the polyaniline colloid that in synthesis procedure, obtains, since with water than higher with the affinity of these organic solvents, thereby with primary particle or with the particle diameter former state of its equal extent size transfer in the organic layer.
In addition, in this transfering process, when the aqueous solvent that uses in than synthesis procedure when the proportion of the organic solvent that adds is light, organic layer is positioned at the upper strata, and water layer is positioned at lower floor, and is opposite, if when the proportion of the organic solvent that adds was heavier than aqueous solvent, water layer was positioned at the upper strata, organic layer is positioned at lower floor.Therefore, if being added in the separating funnel etc. of organic solvent carried out, then water layer can separate simply with organic layer.
In follow-up separation circuit, remove the water layer of formation like this, only reclaim organic layer.Because the polyaniline colloid is transferred in this organic layer, can add adhesive resin therein, uses as polyaniline conductivity printing ink.Certainly, also can be from this organic layer evaporating solvent, further add weighting agent or pigment.
In the preparation method of the polyaniline conductivity printing ink of the application's invention, can further contain adhesive resin in the organic solvent more than a kind that adds in the above-mentioned transfering process.Like this, the polyaniline conductivity printing ink that finally obtains contains adhesive resin, is preferred.
As adhesive resin, can enumerate derivatived cellulose, caseins etc. such as acrylic resin, methacrylic resin, polyester resin, polyurethanes resin, polyimide based resin, vinyl-based resin, nitrocellulose.Can suitably select according to the purposes of polyaniline conductivity printing ink and the molecular weight of polyaniline etc.In addition, adhesive resin can be used alone, and also can two or more mixing use.
Like this, by in transfering process, adding the organic solvent that contains resin glue more than a kind, residue anion surfactant residual in the reaction soln can be removed, need not to condense and simply the polyaniline colloid is transferred in the organic system, and can in same operation, the polyaniline colloid be mixed with adhesive resin.The polyaniline conductivity printing ink that so obtains for example is applicable to the antenna of the FRID グ of carriage headed by anti-electrostatic and the anti-charged liniment, safety carrying static or charged weak semiconductor device etc. etc.
And, in the preparation method of the polyaniline conductivity printing ink of the application's invention, the organic solvent more than a kind that adds in the above-mentioned transfering process also can replace with above-mentioned adhesive resin, perhaps contains any material in above-mentioned adhesive resin and the ultraviolet hardening monomer more than a kind, ultraviolet hardening oligopolymer, their mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture.
As this ultraviolet hardening or electronic beam solidified monomer or oligopolymer, can enumerate various alkyl acrylates, polyester type acrylate, urethane acrylate, polyether-type acrylate, epoxy acrylate, PBAA ester, siloxanes acrylate etc., can suitably select according to the purposes of polyaniline conductivity printing ink and desired physical properties etc.Certainly, be not limited to a kind, also can mix use more than 2 kinds.
Like this, by in transfering process, adding the organic solvent contain ultraviolet hardening more than a kind or electronic beam solidified monomer or oligopolymer, can remove surplus aniorfic surfactant residual in the reaction soln, need not cohesion and simply the polyaniline colloid is transferred in the organic system, and can be in same operation polyaniline colloid and ultraviolet hardening or electronic beam solidified monomer or oligopolymer be mixed.The polyaniline conductivity printing ink that so obtains for example uses as ultraviolet curable ink or electronic beam solidified printing ink, is used for anti-electrostatic and anti-charged film etc.
In the preparation method of the polyaniline conductivity printing ink of above the application's invention, as mentioned above, after synthesis procedure, transfering process, separation circuit, can further include and add adhesive resin, remove the solvent of organic layer, add the redispersion operation of organic solvent once more.In this redispersion operation, when removing the solvent of organic layer, preferably also remove residual moisture.In addition, by further adding organic solvent, the concentration that can regulate solids component in the polyaniline conductivity printing ink.Therefore, can obtain being adapted to the polyaniline conductivity printing ink of various uses.
Specifically, if the concentration of the solids component in the polyaniline conductivity printing ink (polyaniline and adhesive resin and/or ultraviolet hardening or electronic beam solidified oligopolymer) is preferably 10～60wt% with respect to the polyaniline conductivity total ink, 20～40wt% particularly obtains the polyaniline conductivity printing ink of the coating that is applicable to photogravure, flexography, dipping processing or adopts coating machine or injector etc. etc.In addition, when the concentration of solids component is above up to 90wt%, obtain being applicable to the polyaniline conductivity printing ink of offset printing, silk screen printing etc.
Utilize the preparation method of polyaniline conductivity printing ink of above the application's invention, essential cohesion and dehydration operation before not needing reduced process number.Therefore, can shorten polyaniline conductivity printing ink and prepare the required time, reduce production cost simultaneously.
Below, by illustrative embodiments, embodiments of the present invention are described in detail further.Certainly, the invention is not restricted to following embodiment, various variation patterns can be arranged about details.
Embodiment
(embodiment 1)
(1) polyaniline is synthetic
In the 1.5L pure water, add 0.1mol Witco 1298 Soft Acid and 0.1mol aniline, fully stir.Cooling while stirring, when the fluid temperature in the reactive tank reaches below 5 ℃, the ammonium persulfate aqueous solution of slow Dropwise 5 00ml 0.25mol/L, synthesized polyaniline.Ammonium persulfate aqueous solution stirred 12 hours after dripping and finishing, and finished reaction.
(2) polyaniline is from the transfer of water system to organic system
300ml polyaniline resulting solution is transferred in the separating funnel, to wherein adding 200ml vinyl acetic monomer, thorough mixing.Leave standstill to organic layer with after water layer separates, remove the water layer of sub-cloud.Take out organic layer, add the acrylic resin that is dissolved in the vinyl acetic monomer, thorough mixing, stirring in blowing hot-air remove and desolvate.
(3) disperse
With organic solvent with after being dissolved in moisture evaporation in the organic solvent, adds an amount of vinyl acetic monomer, after the dispersion, make polyaniline conductivity printing ink once more.
(4) estimate
Gained polyaniline conductivity printing ink is coated with device No.6 with rod is coated on the PET film, measure surface resistivity, the result is 2.36 * 10
5Ω/.
(embodiment 2)
(1) polyaniline is synthetic
In the 1.5L pure water, add 0.1mol Witco 1298 Soft Acid and 0.1mol aniline, fully stir.Cooling while stirring, when the fluid temperature in the reactive tank reaches below 5 ℃, the ammonium persulfate aqueous solution of slow Dropwise 5 00ml 0.25mol/L, synthesized polyaniline.Ammonium persulfate aqueous solution stirred 12 hours after dripping and finishing, and finished reaction.
(2) polyaniline is from the transfer of water system to organic system
10ml polyaniline resulting solution is transferred in the separating funnel, to wherein adding 65g acrylic resin soln (4g acrylic resin, 42g toluene, 17.6g methyl ethyl ketone, 1.4g Virahol), thorough mixing.
Leave standstill to organic layer with after water layer separates, remove the water layer of sub-cloud.Take out organic layer, thorough mixing, stirring in blowing hot-air remove and desolvate.
(3) disperse
With organic solvent with after being dissolved in moisture evaporation in the organic solvent, adds an amount of vinyl acetic monomer, after the dispersion, make polyaniline conductivity printing ink once more.
(4) estimate
Gained polyaniline conductivity printing ink is coated with device No.6 with rod is coated on the PET film, measure surface resistivity, the result is 3.16 * 10
5Ω/.
Industrial possibility of its application
As mentioned above, according to the present invention, provide a kind of can be without operations such as cohesion, dehydrations and synthetic polyaniline colloid in the aqueous solvent is transferred to organic layer, prepare the short-cut method of polyaniline conductivity printing ink by operation seldom.
Utilize the preparation method of polyaniline conductivity printing ink of the present invention, can shorten the preparation required time, can reduce production costs simultaneously, so practicality is good.
Claims (6)
1. method for preparing polyaniline conductivity printing ink is characterized in that comprising at least: in the presence of aniorfic surfactant, aniline polymerization made polyaniline colloidal operation in aqueous solvent; Add the organic solvent more than a kind in the reaction soln after polyreaction finishes, separates two is transferred to the polyaniline colloid operation of organic layer; With the operation of removing water layer.
2. the method for preparing polyaniline conductivity printing ink of claim 1, wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes contains the adhesive resin more than a kind.
3. the method for preparing polyaniline conductivity printing ink of claim 1, wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes contains any material in ultraviolet hardening monomer, ultraviolet hardening oligopolymer, their mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture more than a kind.
4. the method for preparing polyaniline conductivity printing ink of claim 2, wherein the organic solvent more than a kind that adds in the reaction soln after polyreaction finishes is except containing more than a kind the adhesive resin, also contains any material in ultraviolet hardening monomer more than a kind, ultraviolet hardening oligopolymer, their mixture, the electronic beam solidified monomer more than a kind, electronic beam solidified oligopolymer or their mixture.
5. any one method for preparing polyaniline conductivity printing ink among the claim 1-4 is characterized in that, after the operation of removing water layer, comprises solvent that adds adhesive resin, evaporation organic layer and the operation that adds organic solvent once more.
6. pass through the polyaniline conductivity printing ink of method preparation any among the claim 1-5.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003284408 | 2003-07-31 | ||
| JP284408/2003 | 2003-07-31 |
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| Publication Number | Publication Date |
|---|---|
| CN1580150A true CN1580150A (en) | 2005-02-16 |
| CN100455632C CN100455632C (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100477500A Expired - Fee Related CN100455632C (en) | 2003-07-31 | 2004-06-10 | Method for preparing polyaniline conductive ink |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024746B (en) * | 2005-09-30 | 2010-09-01 | 南京Lg新港显示有限公司 | Plasma display panel comprising elements installed with offset ink and printed with the ink |
| CN114933827A (en) * | 2022-06-17 | 2022-08-23 | 中国船舶重工集团公司第七二五研究所 | Preparation method of low-solid-content high-conductivity water-based ink |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3459203B2 (en) * | 1999-08-06 | 2003-10-20 | 株式会社マルアイ | Conductive ink or conductive paint, method for producing the same, and writing implement filled with conductive ink |
-
2004
- 2004-06-10 CN CNB2004100477500A patent/CN100455632C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101024746B (en) * | 2005-09-30 | 2010-09-01 | 南京Lg新港显示有限公司 | Plasma display panel comprising elements installed with offset ink and printed with the ink |
| CN114933827A (en) * | 2022-06-17 | 2022-08-23 | 中国船舶重工集团公司第七二五研究所 | Preparation method of low-solid-content high-conductivity water-based ink |
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| Publication number | Publication date |
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| CN100455632C (en) | 2009-01-28 |
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