CN110294973A - A kind of ink - Google Patents
A kind of ink Download PDFInfo
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- CN110294973A CN110294973A CN201810239320.0A CN201810239320A CN110294973A CN 110294973 A CN110294973 A CN 110294973A CN 201810239320 A CN201810239320 A CN 201810239320A CN 110294973 A CN110294973 A CN 110294973A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/32—Inkjet printing inks characterised by colouring agents
- C09D11/322—Pigment inks
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/30—Inkjet printing inks
- C09D11/36—Inkjet printing inks based on non-aqueous solvents
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D11/00—Inks
- C09D11/50—Sympathetic, colour changing or similar inks
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Ink Jet Recording Methods And Recording Media Thereof (AREA)
Abstract
The present invention discloses a kind of ink, by weight percentage, including following component: inorganic nano material: 0.1-20.0%；Solvent: 80.0-99.9%；Wherein, the solvent includes at least one percarbonic acid based organic solvent.The present invention, which prints ink, has proper viscosity and surface tension, while having preferable dispersion performance, volatile performance and decomposability, and stable storing.
Description
Technical field
The present invention relates to ink formulations field more particularly to a kind of ink.
Background technique
There is tranmitting frequency to change with change in size, emit line width for quantum dot (QD) luminescent material, luminescent quantum is imitated
Rate is relatively high and the characteristic of the photostability and solution of superelevation processing.These features make using quanta point material as shine
The light emitting diode with quantum dots (QLED) of layer is with a wide range of applications in fields such as solid-state lighting, FPD, receives
The extensive concern of academia and industrial circle.
The solution processing properties of quantum dot allow quantum dot light emitting layer to pass through spin coating, blade coating, injection, inkjet printing etc.
Various ways preparation.Opposite front several method, inkjet printing technology can be accurately in the desired amount by quantum dot light emitting material
It deposits in place, allows semiconductor material uniform deposition to form film layer, very high to the utilization rate of material, manufacturer can be with
Production cost is reduced, manufacture craft is simplified, universal volume production is easy, reduces cost.Inkjet printing technology be it is generally acknowledged at present can be with
Solve the effective ways of the manufacture problem of large scale QLED screen.
Seeing quantum dot ink reported in the literature at present is essentially all that quantum dot is directly dispersing in alkane or cycloalkane
In, obtained quantum dot ink viscosity is small, low boiling point, volatile.Cause the quantum dot pixel dot shape printed uncontrollable, it is thick
Degree uniformity is very poor, and there are various emission defects.Quantum dot ink is different from common ink, for the quantum dot finally printed
Introducing insulating properties organic material few as far as possible in film layer, to guarantee that charge transmission is effective between quantum layer, solute in general ink
Have quantum dot, without using in common ink coating through frequently with pluronic polymer.Therefore, it is necessary in the molten of quantum dot ink
Some higher boilings, highly viscous solvent are added in agent system, quantum point ink performance can meet inkjet printing
It is required that stablizing out of ink, stable to sprawl, evenly drying, uniform film forming.It meanwhile in film forming procedure, and can effectively remove, make
It obtains the transmission of quantum dot light emitting layer charge effectively, improves photoelectric properties.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of ink, it is intended to solve existing printing
The problem of ink viscosity is small, bad dispersibility, low boiling point.
Technical scheme is as follows:
A kind of ink, wherein by weight percentage, including following component:
Inorganic nano material: 0.1-20.0%；
Solvent: 80.0-99.9%；Wherein, the solvent includes at least one percarbonic acid based organic solvent.
The ink, wherein the boiling spread of the percarbonic acid based organic solvent is 150 DEG C -220 DEG C.
The ink, wherein 25 DEG C of percarbonic acid based organic solvents range of viscosities be 2cPs-15cPs.
The ink, wherein 25 DEG C of percarbonic acid based organic solvents surface tension range be 26mN/m-
36mN/m。
The ink, wherein the general structure of the percarbonic acid based organic solvent is selected from logical formula (I), (II) as follows
At least one of shown in (III):
Wherein, R1、R2、R3、R1’、R2’、R3' it independently is the substituted or unsubstituted straight chain alkane with 1 to 20 C atom
Base or aryl.
The ink, wherein in substituted straight chained alkyl or aryl, substituent group be selected from alkyl, aryl, nitro, cyano,
Amino ,-N (R ') (R "), halogen, hydroxyl, carboxyl, ester group, ether, carbonyl, alkenyl, alkynyl, naphthenic base, alkoxy, aryloxy group,
Heteroaryloxy, alkoxy carbonyl group, perfluoroalkyl, perfluoro alkoxy, thio alkoxy ,-S (O)2- N (R ') (R ") ,-C (=O)-N
(R ') (R "), replace alkyl, replace positive alkoxy, alkyl aryloxy alkyl, sulfinyl or sulfonyl is replaced to replace
Aryl or one of heteroaryl and silyl-group are a variety of；Wherein, R ' and R " independently is the alkyl optionally replaced, ring
Alkyl, aryl or heteroaryl.The ink, wherein the percarbonic acid based organic solvent is selected from allyl t-butyl peroxy
Carbonic ester, dicetyl peroxydicarbonate two (2- ethyl hexyl) ester, coke diene acid propyl diester, di-isopropyl peroxydicarbonate, peroxide
Change two carbonic acid di-secondary butyl esters, tert-butylperoxyiso-propyl formic acid esters, t-butyl peroxy cyclohexyl carbonic ester, peroxidating (2- ethyl
Hexyl) carbonic acid tert-pentyl ester, two carbonic acid dipropyl of peroxide and coke sour two tert-pentyl esters, dicetyl peroxydicarbonate two (2- benzene oxygen ethyl)
Ester, the two secondary butyl esters of (4- methylbenzyl) peroxide heavy carbonic isopropyl, in bis- (4- tert-butylcyclohexyl) peroxy dicarbonates
It is one or more.
The ink, wherein the 25-35 DEG C of ink range of viscosities be 1cPs-50cPs.
The ink, wherein the 25-35 DEG C of ink range of viscosities be 1cPs-15.0cPs.
The ink, wherein the dosage of the percarbonic acid based organic solvent is the 5-80.0% of solvent total weight.
The ink, wherein the inorganic nano material is the 4-15% of total weight of printing ink.
The utility model has the advantages that printing ink provided by the invention has proper viscosity and surface tension, while there is preferable point
Performance, volatile performance and decomposability are dissipated, requirement of the current ink-jet printer to viscosity and surface tension is met, realizes inorganic receive
The inkjet printing mode of rice material light-emitting layer obtains the inorganic nano material hair with pixel-matrix, high-resolution, electroexcitation
Photosphere；The present invention print ink be uniformly dispersed, stable storing.It, can by printing ink volatile performance appropriate and decomposability
So that the printing ink compositions volatilization such as organic molecule is complete in the inorganic nano material layer of printing preparation, so that inorganic nano material
Densification is arranged, and charge transmission effectively, reduces threshold voltage between inorganic nano material, improves efficiency.
Specific embodiment
The present invention provides a kind of ink, to make the purpose of the present invention, technical solution and effect clearer, clear and definite, below
The present invention is described in more detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
The present invention provides a kind of ink, wherein by weight percentage, including following component:
Inorganic nano material: 0.1-20.0%；
Solvent: 80.0-99.9%；Wherein, the solvent includes at least one percarbonic acid based organic solvent.
The boiling spread of percarbonic acid based organic solvent of the present invention is 60 DEG C -320 DEG C, and the percarbonic acid esters are organic
Solvent can be evaporated from dicyandiamide solution, to form inorganic nano material film.Preferably, the percarbonic acid based organic solvent
Boiling spread is 150 DEG C -220 DEG C, and the ink that the organic solvent within the scope of this is prepared does not block spray head, together in print procedure
When, the decomposition temperature of peroxocarbonate should not be higher, can guarantee that post-processing temperature will not be higher in this way, and peroxocarbonate early stage volatilizees
Completely, the photoelectric properties of quantum dot are not influenced.
Preferably, the dosage of the inorganic nano material is the 4-15% of total weight of printing ink.
It is 0.5cPs-50cPs in the range of viscosities of 25 DEG C of percarbonic acid based organic solvents.Preferably, in 25 DEG C of institutes
State percarbonic acid based organic solvent range of viscosities be 2cPs-15cPs, guarantee viscosity be not it is too high, facilitate out of ink；Viscosity simultaneously
Be not it is too small, keep certain mobility, form a film uniform volatile dry after printing.
It is 20mN/m-60mN/m in the surface tension range of 25 DEG C of percarbonic acid based organic solvents.Preferably, 25
The surface tension range of DEG C percarbonic acid based organic solvent is 26-36mN/m, guarantee surface tension be not it is too small, prevent ink
Drop sputtering or ink droplet are larger；Surface tension is not very big simultaneously, can form uniform solution with other solvents of ink, and beat
Pixel can be paved with after print in substrate, uniformly sprawls film forming.
It is 1cPs-50cPs in the range of viscosities of the 25-35 DEG C of ink, preferred range of viscosities is 1cPs-15.0cPs.
Solvent of the present invention includes at least one percarbonic acid based organic solvent, it is preferable that the percarbonic acid esters have
The dosage of solvent be solvent total weight 5-80.0%, in this way can with the viscosity and surface tension of appropriate adjustment ink, and
It takes into account dissolubility and facilitates post-processing.Specifically, solvent of the present invention can have for conventional alkane and/or arene
The mixed solvent of solvent and percarbonic acid based organic solvent.In other words, the present invention is in conventional alkane and/or arene
Percarbonic acid based organic solvent is added in organic solvent as dicyandiamide solution.
Existing printing ink is essentially all inorganic nano material to be directly dispersing in alkane and/or arene is organic molten
In agent, obtained printing ink or viscosity and surface tension is very small, and low boiling point or dispersion effect are very poor, causes to make
Standby inorganic nano material film thickness is inconsistent, and uniformity is very poor.The present invention is by being added one in solvent for printing inks system
A little percarbonic acid based organic solvents adjust printing ink performance, so that printing ink is can satisfy inkjet printing requirement, realize and stablize
Out of ink, stabilization is sprawled, evenly drying, uniform film forming.And present invention printing ink is different from previous ink, inorganic nano material
The unnecessary organic material of film material introducing few as far as possible, and organic material of the present invention can pass through heating in last handling process
And/or the mode of decompression removes, it is effective to keep the transmission of inorganic nano material interlayer charge.
Effect of the percarbonic acid based organic solvent that the present invention selects due to oxygen bridge even, so that the chain length of organic solvent
It doubles, so that viscosity increases comparatively fast, therefore, can effectively improve the viscosity of printing ink；And due to peroxyl species
It is easier to decompose, therefore in later period heating last handling process, ink is easier to chain rupture, so that it is easier to removal of volatilizing from ink,
Obtain the luminescent layer of only inorganic nano material film.
Printing ink provided by the invention has proper viscosity and surface tension, while having preferable dispersion performance, waving
Volatility and decomposability meet requirement of the current ink-jet printer to viscosity and surface tension, realize inorganic nano material hair
The inkjet printing mode of photosphere obtains the inorganic nano material luminescent layer with pixel-matrix, high-resolution, electroexcitation；This
Invention printing ink be uniformly dispersed, stable storing.By printing ink volatile performance appropriate and decomposability, can to beat
It is complete to print the printing ink compositions such as organic molecule volatilization in standby inorganic nano material layer, so that inorganic nano material densification is arranged
Cloth, charge transmission effectively, reduces threshold voltage between inorganic nano material, improves efficiency.
The general structure of percarbonic acid based organic solvent of the present invention be selected from as follows logical formula (I), (II) and (III) it is shown
At least one of:
Wherein, R1、R2、R3、R1’、R2’、R3' it independently is the substituted or unsubstituted straight chain alkane with 1 to 20 C atom
Base or aryl.
Above-mentioned R1、R2、R3、R1’、R2’、R3' it may each be substituted or unsubstituted group.Such as it can be but be not limited to
The group of alkyl, aryl arbitrarily replaced can be replaced with one or more identical or different substituent groups.Suitably take
Dai Ji includes alkyl, aryl, nitro, cyano, amino ,-N (R ') (R "), halogen, hydroxyl, carboxyl, ester group, ether, carbonyl, alkene
Base, alkynyl, naphthenic base, alkoxy, aryloxy group, heteroaryloxy, alkoxy carbonyl group, perfluoroalkyl, perfluoro alkoxy, thio alcoxyl
Base ,-S (O)2- N (R ') (R ") ,-C (=O)-N (R ') (R "), replace alkyl, replace positive alkoxy, replace alkyl virtue oxygen
The aryl or heteroaryl, silyl-group that base alkyl, sulfinyl or sulfonyl replace.
Each R ' and R " independently is the alkyl optionally replaced, naphthenic base, aryl or heteroaryl.
In R ' and R ", abovementioned alkyl general formula is CmH2m+1, wherein m is the positive integer of 1-25.Saturation including branch and straight chain
Aliphatic group as an example, the alkyl include methyl, ethyl, propyl, isopropyl, isobutyl group, sec-butyl, tert-butyl, amyl,
One of isopentyl, neopentyl, cyclopenta, hexyl, cyclohexyl, isohesyl.
In R ' and R ", the naphthenic base general formula is CmH2m-1, wherein m is the positive integer of 1-25.
The substituent groups such as abovementioned alkyl or naphthenic base can increase dissolubility, convenient for preparing the printing ink of inkjet printing.
In R ' and R ", above-mentioned aryl, such as phenyl, xenyl, triphenyl base, benzo base, naphthalene, anthryl, urgent benzo naphthalene,
Phenanthryl, fluorenyl, pyrenyl, Qu Ji, base, azulenyl.
In R ' and R ", above-mentioned heteroaryl, such as dibenzothiophene, dibenzofuran group, furyl, thienyl, benzo furan
It mutters base, benzothienyl, carbazyl, pyrazolyl, imidazole radicals, triazol radical, isoxazolyl, thiazolyl, oxadiazoles base dislikes triazole
Base, dioxazole base, thiadiazolyl group, pyridyl group, pyridazinyl, pyrimidine radicals, pyrazinyl, triazine radical, oxazines base, thiazinyl, oxadiazines
Base, indyl, benzimidazolyl, indazolyl, indolizine base, benzoxazolyl, isoxazolyl, benzothiazolyl, quinolyl are different
Quinolyl, cinnoline base, quinazolyl, quinoxalinyl, naphthalene, phthalidyl, pteridyl, oxa- anthryl, acridinyl, azophenlyene
Base, phenothiazinyl, phenoxazine base, dibenzo selenophen base, benzo selenophen base, benzofuran and pyridine pyrazolyl, indole carbazole base,
Pyridyl group indyl, two pyrido indyl of pyrroles, furans bipyridyl, benzothiophene furopyridyl, two pyrrole of thieno
Piperidinyl, benzo selenophen and pyridyl group and selenophen bipyridyl.
Preferably, percarbonic acid based organic solvent of the present invention is selected from allyl t-butyl peroxy carbonic ester, peroxidating
Two carbonic acid two (2- ethyl hexyl) esters, coke diene acid propyl diester, di-isopropyl peroxydicarbonate, dicetyl peroxydicarbonate di-secondary fourth
Ester, tert-butylperoxyiso-propyl formic acid esters, t-butyl peroxy cyclohexyl carbonic ester, peroxidating (2- ethylhexyl) carbonic acid uncle penta
Ester, two carbonic acid dipropyl of peroxide and coke sour two tert-pentyl esters, dicetyl peroxydicarbonate two (2- benzene oxygen ethyl) ester, two (4- methyl
Benzyl) the secondary butyl ester of peroxide heavy carbonic isopropyl, one of bis- (4- tert-butylcyclohexyl) peroxy dicarbonates or a variety of.
Preferably, inorganic nano material of the present invention can for the periodic table of elements IV race binary or polynary semiconductor transformation
Close object, II-VI group binary or polynary semiconducting compound, II-V race binary or polynary semiconducting compound, iii-v binary or
Polynary semiconducting compound, III-VI race binary or polynary semiconducting compound, group IV-VI binary or polynary semiconductor chemical combination
Object, I-III-VI race binary or polynary semiconducting compound, II-IV-VI race binary or polynary semiconducting compound, II-IV-V
One of race's binary or polynary semiconducting compound are a variety of.
Preferably, inorganic nano material of the present invention can also be a kind of perovskite nanometer particle material, especially send out
One of light perovskite nanoparticle, metal nano particle material, metal oxide nanoparticles material are a variety of.
Preferably, inorganic nano material of the present invention can also be quantum dot, the quantum dot can for CdSe, CdS,
One of CdTe, ZnO, ZnSe, ZnS, ZnTe, HgS, HgSe, HgTe, CdZnSe or a variety of；Or the quantum dot can be
InAs、InP、InN、GaN、InSb、InAsP、InGaAs、GaAs、GaP、GaSb、AlP、AlN、AlAs、AlSb、CdSeTe、
One of ZnCdSe or a variety of.
It is highly preferred that the average-size of quantum dot of the present invention is 1-20nm.And the quantum dot is uniform mixing
Type, gradient mixed type, core-shell structure copolymer type or union type.The quantum dot can be oil-soluble quantum dot.The quantum dot
Selected from doped or non-doped quantum dot.
It is highly preferred that the ligand of the quantum dot can be sour ligand, mercaptan ligand, amine ligand, (oxygen) Phosphine ligands, phosphorus
One of rouge, soft phosphatide, polyvinylpyridine are a variety of.The acid ligand includes ten acid, undecenoic acid, tetradecylic acid, oleic acid
With one of stearic acid or a variety of；The mercaptan ligand includes eight alkyl hydrosulfides, lauryl mercaptan and Stearyl mercaptan
One of or it is a variety of；The amine ligand includes one of oleyl amine, octadecylamine and eight amine or a variety of；(oxygen) the Phosphine ligands packet
Include tri octyl phosphine, trioctylphosphine oxide (TOPO) it is one or more.
Based on above-mentioned printing ink, the present invention also provides a kind of preparation methods of printing ink, comprising steps of first
Inorganic nano material is dispersed in the solvent comprising at least one percarbonic acid based organic solvent according to above-mentioned formula, is then stirred
It mixes uniformly, obtains the printing ink with proper viscosity, surface tension.Control the boiling points of all printing ink compositions 320 DEG C with
Under.
The present invention also provides a kind of methods that the printing ink is carried out inkjet printing comprising step:
The printing of inorganic nano material layer: suitable ink-jet printer is selected to carry out inkjet printing inorganic nano material layer.
Post-processing: under heat temperature raising or cooling and/or depressurization, the peroxocarbonate in inorganic nano material layer is removed
Class organic solvent, in addition to inorganic nano material (quantum dot), so that other organic substances of printing ink all volatilize completely.Its
In, finishing time 0-30min.Heating temperature is 60-180 DEG C.Heating can such as take pulse by controlling heating method
Heating or continuous heating, the temperature for the processing that cools down are 0-20 DEG C；Vacuum degree is 1 × 10-6Torr is to normal pressure, it is ensured that quantum dot hair
The volatilization of percarbonic acid based organic solvent is complete in photosphere, and quantum dot is not destroyed.
Printing ink of the invention has preferable dispersion performance, volatile performance and decomposability, and stable storing, simultaneously
With viscosity appropriate and surface tension, meet the requirement to viscosity and surface tension of current ink-jet printer, realizes quantum
The inkjet printing mode of point luminescent layer, obtains the quantum dot light emitting layer with pixel-matrix.By inkjet printing methods, shape is deposited
At the quantum dot light emitting layer with pixel-matrix；Meanwhile after post treatment, organic substance in the quantum dot light emitting layer of preparation is printed
Composition can volatilize, and enable to the charge of quantum dot light emitting layer to transmit and facilitate progress, low start voltage is dropped, so that electric
Son, hole may be coextruded radioluminescence.
To discharge the printing ink suitably without blocking from the nozzle of inkjet print head, the present invention adjusts off-set oil
The dosage of black each component, so that the viscosity of the printing ink is usually 0.5cPs-50.0cPs under room temperature (25 DEG C).
To discharge the printing ink suitably from the nozzle of inkjet print head, and there is preferable film forming characteristics, off-set oil
Black surface tension is usually 20mN/m-60mN/m.
The inkjet printing film is preferably formed as to make it dry caudacoria with a thickness of 10nm-100nm.The particularly preferred printing ink
Coated film is with a thickness of 20nm-50nm.In addition, the present invention coats the ink by piezoelectricity or thermal inkjet-printing.In addition, the present invention adopts
The factors such as appropriate adjusting post-processing temperature, processing time are taken to form the inorganic nano material layer of required performance.
Below by embodiment, invention is further explained (wt% is weight percentage).
Embodiment 1
Mixed solvent is made of 1- methoxynaphthalene, diamyl benzene and dicetyl peroxydicarbonate two (2- ethyl hexyl) ester, various molten
Agent is all made of corresponding method water removal, deoxygenation is refined to purity greater than 99.9%.
Following components is added in about 500mL single-necked flask, in the case of stirring, order of addition are as follows: 10wt%
The stable red CdSe/ZnS quantum dot of oleyl amine, 5wt%1- methoxynaphthalene, 5wt% diamyl benzene, two carbon of 80wt% peroxidating
Sour two (2- ethyl hexyl) esters, are stirred mixture 30 minutes, obtain printing ink.
Printing ink injection is printed into ink-jet printer cartridge, relevant parameter is regulated, is printed as 20 × 30um, resolution ratio
The red quantum dot layer of 200 × 200ppi.
The substrate printed is placed in thermal station and is heated to 155 DEG C, vacuum 1 × 10-6Volatile dry 30min under Torr,
Obtain monochromatic quantum dot luminescent layer.
Embodiment 2
Mixed solvent is made of tridecane, tetrahydronaphthalene and tert-butylperoxyiso-propyl formic acid esters, and various solvents are all made of
Corresponding method water removal, deoxygenation are refined to purity greater than 99.9%.
Following components is added in about 500mL high-density polyethylene bottle, in the case of stirring, order of addition are as follows:
Stable green CdZnSe/CdZnS, 20wt% tridecane of the oleyl amine of 10wt%, 30wt% tetrahydronaphthalene, 40wt% tert-butyl mistake
Oxygen isopropyl carbamate stirs mixture 30 minutes, obtains printing ink.
By ink-jet printer, it is printed as 20 × 30um, the green quantum dot layer of 200 × 200ppi of resolution ratio.
150 DEG C, vacuum 1 × 10 are heated on hot plate-5Volatile dry 30min under Torr obtains monochromatic quantum dot and shines
Layer.
Embodiment 3
Mixed solvent is made of 1-ethylnaphthalene, benzene hexane and peroxidating (2- ethylhexyl) carbonic acid tert-pentyl ester, various solvents
It is all made of corresponding method water removal, deoxygenation is refined to purity greater than 99.9%.
Following components is added in about 500mL high-density polyethylene bottle, in the case of stirring, order of addition are as follows:
The stable blue CdS/CdZnS of the oleyl amine of 10wt% (green CdZnSe/CdZnS, red CdSe/ZnS quantum dot), 45wt%1-
Ethylnaphthalene, 25wt% benzene hexane, 20wt% peroxidating (2- ethylhexyl) carbonic acid tert-pentyl ester are stirred mixture 30 minutes, are obtained
Print ink.
By ink-jet printer, it is printed as 20 × 30um, blue, green, the red three primary colours quantum of 200 × 200ppi of resolution ratio
Point layer.
120 DEG C, vacuum 1 × 10 are heated on hot plate-6Volatile dry 30min under Torr obtains three primary colours quantum dot layer.
In conclusion the printing ink of inkjet printing provided by the invention, has preferable dispersion performance, dispersion is equal
It is even, stable storing, while there is viscosity and surface tension appropriate, it can satisfy printer film forming requirement.It is beaten by ink-jet
Impression method, deposition form the inorganic nano material luminescent layer with pixel-matrix.And with controllable volatile performance and divide
Performance is solved, after post treatment, volatilization can be decomposed by printing the organic substance composition in the inorganic nano material film layer of preparation, and
Rate of volatilization is controllable, can guarantee that film forming is uniform.The charge of inorganic nano material film layer is enabled to transmit after the solvent is volatilized
Facilitate progress, low start voltage is dropped, so that electronics, hole may be coextruded radioluminescence.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of ink, which is characterized in that by weight percentage, including following component:
Inorganic nano material: 0.1-20.0%；
Solvent: 80.0-99.9%；Wherein, the solvent includes at least one percarbonic acid based organic solvent.
2. ink according to claim 1, which is characterized in that the boiling spread of the percarbonic acid based organic solvent is
150℃-220℃。
3. ink according to claim 1, which is characterized in that in the viscosity model of 25 DEG C of percarbonic acid based organic solvents
It encloses for 2cPs-15cPs.
4. ink according to claim 1, which is characterized in that on the surface of 25 DEG C of percarbonic acid based organic solvents
Power range is 26mN/m-36mN/m.
5. ink according to claim 1, which is characterized in that the general structure of the percarbonic acid based organic solvent is selected from
As follows logical formula (I), (II) and (III) it is at least one of shown:
Wherein, R1、R2、R3、R1’、R2’、R3' independently be substituted or unsubstituted straight chained alkyl with 1 to 20 C atom or
Aryl.
6. ink according to claim 5, which is characterized in that in substituted straight chained alkyl or aryl, substituent group is selected from alkane
Base, aryl, nitro, cyano, amino ,-N (R ') (R "), halogen, hydroxyl, carboxyl, ester group, ether, carbonyl, alkenyl, alkynyl, ring
Alkyl, alkoxy, aryloxy group, heteroaryloxy, alkoxy carbonyl group, perfluoroalkyl, perfluoro alkoxy, thio alkoxy ,-S (O)2-N
(R ') (R ") ,-C (=O)-N (R ') (R "), replace alkyl, replace positive alkoxy, replace alkyl aryloxy alkyl, sub- sulphur
The aryl or one of heteroaryl and silyl-group or a variety of that acyl group or sulfonyl replace；Wherein, R ' and R " is independently
For alkyl, naphthenic base, aryl or the heteroaryl optionally replaced.
7. ink according to claim 6, which is characterized in that the percarbonic acid based organic solvent is selected from the tertiary fourth of allyl
Base peroxy carbonates, dicetyl peroxydicarbonate two (2- ethyl hexyl) ester, coke diene acid propyl diester, dicetyl peroxydicarbonate diisopropyl
Ester, peroxide-butyl carbonate, tert-butylperoxyiso-propyl formic acid esters, t-butyl peroxy cyclohexyl carbonic ester, peroxidating
(2- ethylhexyl) carbonic acid tert-pentyl ester, two carbonic acid dipropyl of peroxide and coke sour two tert-pentyl esters, (the 2- benzene of dicetyl peroxydicarbonate two
Oxygen ethyl) ester, the two secondary butyl esters of (4- methylbenzyl) peroxide heavy carbonic isopropyl, bis- (4- tert-butylcyclohexyl) dicetyl peroxydicarbonates
One of ester is a variety of.
8. ink according to claim 1, which is characterized in that the 25-35 DEG C of ink range of viscosities be 1cPs-
50cPs。
9. ink according to claim 1, which is characterized in that the dosage of the percarbonic acid based organic solvent is that solvent is total
The 5-80.0% of weight.
10. ink according to claim 1, which is characterized in that the inorganic nano material is the 4- of total weight of printing ink
15%.
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| CN201810239320.0A CN110294973A (en) | 2018-03-22 | 2018-03-22 | A kind of ink |
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| CN201810239320.0A CN110294973A (en) | 2018-03-22 | 2018-03-22 | A kind of ink |
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