CN110305531A - Quantum dot ink and quantum stippling film - Google Patents
Quantum dot ink and quantum stippling film Download PDFInfo
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- CN110305531A CN110305531A CN201910486243.3A CN201910486243A CN110305531A CN 110305531 A CN110305531 A CN 110305531A CN 201910486243 A CN201910486243 A CN 201910486243A CN 110305531 A CN110305531 A CN 110305531A
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- quantum dot
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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
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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
- C09D11/38—Inkjet printing inks characterised by non-macromolecular additives other than solvents, pigments or dyes
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Abstract
The invention discloses a kind of quantum dot ink, including quantum dot, monomer, initiator and solvent, the quantum dot ink further includes low polymer, and the boiling point of the low polymer and monomer is greater than 300 DEG C, and the boiling point of the solvent is less than 250 DEG C.Quantum dot ink of the invention can easily control printing-filming process, so that the thickness of film has homogeneity.
Description
Technical field
The application belongs to field of nanometer material technology, in particular to a kind of quantum dot ink and quantum stippling film.
Background technique
Quantum dot has excellent optical property, can be applied to the fields such as display, illumination.Quanta point material is used
When display, the colour gamut of display can be obviously improved.
Quantum dot is configured to quantum dot ink and by modes such as printing, transfer, spin coatings, the quantum of needs can be formed
Point film.In one application, based on quanta point material, additive is added in solvent composition and prepares suitable quantum
Point ink, and so that quantum dot ink is formed color film by corresponding processing procedure, this coloured silk film is referred to as quantum stippling film.
The prior art generallys use printing technology by quantum dot ink printed on pixel substrate, after its solidification, is formed
Pixel on pixel substrate.But these quantum dot inks are during printing-filming, due to material evaporation rate not
Together, lead to the in uneven thickness of the quantum stippling film eventually formed, affect its whole optical property.In addition, existing quantum dot
The volatility of ink is difficult to control, so that the thickness to form a film in print procedure can not keep stable.Therefore a kind of ink of demand
Water enables to film shrinkage to be consistent.
Summary of the invention
In view of the above technical problems, the application provides a kind of quantum dot ink, enables to film shrinkage to be consistent, just
In control printing-filming process, so that the thickness of film forming has homogeneity.
This application provides a kind of quantum dot inks, including quantum dot, monomer, initiator and solvent, wherein the quantum
Point ink further includes low polymer, and the boiling point of the low polymer and monomer is greater than 300 DEG C, and the boiling point of the solvent is less than 250
℃。
Preferably, by weight percentage, the low polymer accounts for 10~30wt% of quantum dot ink.
Preferably, by weight percentage, the quantum dot accounts for 0.1~10wt% of quantum dot ink, and the monomer accounts for
10~30wt% of quantum dot ink, the resin account for 10~30wt% of quantum dot ink, and the initiator accounts for quantum dot ink
0.1~10wt% of water, the solvent account for 30~70wt% of quantum dot ink.
Preferably, the viscosity of the low polymer is 10~30cp.
Preferably, the low polymer be polyethylene glycol acrylate and its derivative, triethylene glycol diacrylate and
Its derivative, triethyleneglycol acrylate and its derivative, diethylene glycol diacrylate and its derivative, diethylene glycol propylene
Acid esters and its derivative, or, at least one of alkyl methacrylate and its derivative.
Preferably, the quantum dot ink further includes resin, and the resin includes acrylic resin, epoxy resin, benzene second
Olefine resin, polyolefin resin, polyoxyalkylene resin or their mixture.
Preferably, the solvent includes butyl glycol ether, dimethyl-imidazolinone, 2-Butoxyethyl acetate, diethyl two
Alcohol monomethyl ether, butyl, diethylene glycol ether, or, at least one of diethylene glycol ethylmethyl ether.
Preferably, the quantum dot ink further includes crosslinking agent.
Preferably, the viscosity of the quantum dot ink is 3~12cp.
Present invention also provides a kind of quantum stippling films, are made by any of the above-described quantum dot ink.
The application solves film contracting when quantum dot ink dried film forming by the way that low polymer is added in quantum dot ink
The inconsistent problem of rate, and the boiling point of solvent is lower than 250 DEG C in quantum dot ink, and the boiling point of low polymer and monomer is greater than
300 DEG C, solvent is easy to the short time and vapors away as a result, and cured low polymer and monomer is wanted to be easy to deposit, thus
So that printing-filming process control, film thickness made from front and back is also relatively uniform, the entirety of the quantum stippling film finally obtained
Thickness has homogeneity.
Detailed description of the invention
Fig. 1 is the quantum stippling film thickness measurement in the specific embodiment of the application after quantum dot ink printed film forming
Figure.
Specific embodiment
Below in conjunction with the application embodiment, technical solutions in the embodiments of the present application is described in detail.It answers
It is noted that described embodiment is only a part of embodiment of the application, rather than whole embodiments.
This application provides a kind of quantum dot inks, including quantum dot, monomer, initiator and solvent, wherein the quantum
Point ink further includes low polymer, and the boiling point of the low polymer and monomer is greater than 300 DEG C, and the boiling point of the solvent is less than
250℃。
Contain low polymer in quantum dot ink in the application, inventors have found that by the way that low polymer, Ke Yiming is added
Film shrinkage when solving the problems, such as quantum dot ink dried film forming aobviously is inconsistent.
It should be noted that it has been generally acknowledged that more than dimerization, molecular weight 104Low polymer (oligomer) is all below.Such as
Dimer (dimer), tripolymer (trimer), the tetramer (tetramer).Low polymer may be selected to be polyethylene glycol acrylic acid
Ester and its derivative, triethylene glycol diacrylate and its derivative, triethyleneglycol acrylate and its derivative, diethylene glycol
Diacrylate and its derivative, diethylene glycol acrylate and its derivative, or, alkyl methacrylate and its derivative
Object.
In addition, the boiling point of solvent is lower than 250 DEG C in the quantum dot ink, vapored away so that solvent is easy to the short time, and
The boiling point of monomer and low polymer is greater than 300 DEG C, thus to solidify, the substance of difficult volatilization is easy to deposit, print as a result,
Film forming procedure is controllable, and film thickness made from front and back is also relatively uniform, and the integral thickness of the quantum stippling film finally obtained has
Homogeneity.
The boiling point that the application chooses volatile component is greater than 300 DEG C less than the boiling point of 250 DEG C, nonvolatile element, so that
The difference of the boiling point of volatile component and nonvolatile element is greater than 50 DEG C, so as to realize volatile component within a short period of time
It vapors away and nonvolatile element remains quickly.The thickness for quantum dot ink film in printing-filming that front and back prints as a result,
Degree will not differ too big, convenient for the control of ink printed film forming procedure.
That is, the quantum dot ink of the application can form a film after inkjet printing is complete in the short time, and after this, shape
At the thickness of film will not change too much, the thickness change of film forming is small, keeps stablizing.With it is printed before thin
Film is compared, and the thickness of the film of front and back printing is essentially identical, too big fluctuation is not had, so that ink printed of being more convenient for formed a film
The monitoring of journey, and the thickness of finally formed film is relatively uniform, and film has homogeneity.
On the contrary, if component boiling point in quantum dot ink differs closer, the component for needing to vapor away, such as solvent etc.,
The component that cannot be vapored away in a short time, and need to remain, such as monomer etc., and cannot deposit down in a short time
Come, the film thickness that can thus make spraying print shows various thickness over time, very inconvenient
In the monitoring of ink printed film forming procedure.Also, since the thickness of the film of front and back printing is different, so that finally formed
Film thickness is very uneven, to influence the overall structure and optical property of film.
In brief, the volatility of quantum dot ink is difficult to control at present, and the thickness to form a film in print procedure is not able to maintain
Stablize.And the quantum dot ink of the application volatility within one section of unit time is controllable, so that the film shrinkage of ink is able to maintain
Unanimously, to ensure that the homogeneity finally to form a film.
In the specific embodiment of the application, by weight percentage, low polymer account for quantum dot ink 10~
30wt%, quantum dot account for 0.1~10wt% of quantum dot ink, and monomer accounts for 20~60wt% of quantum dot ink, and initiator accounts for
0.1~10wt% of quantum dot ink, solvent account for 30~70wt% of quantum dot ink,
In the specific embodiment of the application, the viscosity of low polymer is 10~30cp, the entirety of quantum dot ink
Viscosity is 3~7cp.By adjusting low polymer, monomer and solvent composition so that the overall viscosity of quantum dot ink be 3~
7cp, it is preferred that be adjusted to 5~6cp, such quantum dot ink is very suitable to inkjet printing.
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, resin, initiation
Agent and solvent.Wherein, the boiling point of monomer, low polymer and resin is greater than 300 DEG C, for example, the resin may be selected to be acrylic acid tree
Rouge, epoxy resin, styrene resin, polyolefin resin, polyoxyalkylene resin or their mixture；For example, the monomer can
It is selected as isobornyl acrylate monomer (IBOA), isobornyl methacrylate (IBOMA), trimethylolpropane tris acrylic acid
Ester (TMPTA), tri (propylene glycol) diacrylate (TPGDA) etc..
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, and resin draws
Hair agent and solvent, solvent may be selected to be butyl glycol ether, dimethyl-imidazolinone, 2-Butoxyethyl acetate, diethylene glycol list
Methyl ether, butyl, diethylene glycol ether, or, diethylene glycol ethylmethyl ether.
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, resin, initiation
Agent and solvent, the quantum dot ink also contain volatile monomers, and the boiling point of the volatile monomers is less than 250 DEG C.For example, the volatilization
Property monomer may be selected to be 2-Propenoic acid, 2-methyl-, octyl ester, decyl-octyl methacrylate, 4- hydroxy butyl vinyl ether, hydroxy-ethyl acrylate, first
Base hydroxypropyl acrylate, Isooctyl acrylate monomer, hydroxypropyl acrylate, or, hydroxy propyl methacrylate.
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, resin, initiation
Agent and solvent.The quantum dot ink further includes crosslinking agent, for example, the crosslinking agent may be selected to be trimethylolpropane tris acrylic acid
Ester, pentaerythritol triacrylate, pentaerythritol tetraacrylate, Dipentaerythritol Pentaacrylate, or, six pentaerythrites six
Acrylate etc..
Low polymer low polymer is it should be noted that contain initiator in the quantum dot ink of the application, the initiator
It can may be thermal initiator for photoinitiator, both may be used.For example, the initiator is photoinitiator, which is
TPO (2,4,6- trimethylbenzoy-dipheny phosphine oxide).
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, resin, initiation
Agent and solvent.Wherein, by weight percentage, quantum dot accounts for the 5wt% of quantum dot ink, and monomer accounts for quantum dot ink
20wt%, low polymer account for the 15wt% of quantum dot ink, and resin accounts for the 10wt% of quantum dot ink, and initiator accounts for quantum dot ink
The 5wt% of water, solvent account for the 45wt% of quantum dot ink, wherein the boiling point of resin, low polymer and monomer is molten greater than 300 DEG C
The boiling point of agent is less than 250 DEG C.
In the specific embodiment of the application, quantum dot ink contains quantum dot, monomer, low polymer, resin, initiation
Agent and solvent.Wherein, by weight percentage, quantum dot accounts for the 10wt% of quantum dot ink, and monomer accounts for quantum dot ink
25wt%, low polymer account for the 15wt% of quantum dot ink, and resin accounts for the 5wt% of quantum dot ink, and initiator accounts for quantum dot ink
The 1wt% of water, solvent account for the 44wt% of quantum dot ink, wherein the boiling point of resin, low polymer and monomer is molten greater than 300 DEG C
The boiling point of agent is less than 250 DEG C.
In the specific embodiment of the application, quantum dot ink, including quantum dot, monomer, low polymer, resin draw
Send out agent and solvent.Wherein, by weight percentage, quantum dot accounts for the 2wt% of quantum dot ink, and monomer accounts for quantum dot ink
30wt%, low polymer account for the 30wt% of quantum dot ink, and resin accounts for the 5wt% of quantum dot ink, and initiator accounts for quantum dot ink
The 3wt% of water, solvent account for the 30wt% of quantum dot ink, wherein the boiling point of resin, low polymer and the monomer is greater than 300
DEG C, the boiling point of solvent is less than 250 DEG C.
To sum up, in quantum dot ink in the application comprising easy volatile solvent and difficult vaporized monomers, low polymer and
The boiling point of resin, volatile solvent and volatile monomers is less than 250 DEG C, non-volatile resin, monomer and low polymer
Boiling point is greater than 300 DEG C, so that the difference of their boiling point is greater than 50 DEG C, to wave within many short time thus, it is possible to realize
Hair property component volatilization falls and nonvolatile element can remain quickly, so that the quantum dot ink of front and back printing is in film forming
The thickness of film will not differ too big, convenient for the control of printing-filming process.
A kind of quantum stippling film is additionally provided in one specific embodiment of the application, the quantum stippling film is by quantum dot ink
It being made, which includes quantum dot, monomer, initiator and solvent, wherein quantum dot ink further includes low polymer,
The boiling point of low polymer and monomer is greater than 300 DEG C, and the boiling point of solvent is less than 250 DEG C.
A kind of quantum stippling film is additionally provided in one specific embodiment of the application, the quantum stippling film is by quantum dot ink
It is made, which includes quantum dot, monomer, initiator and solvent, which also contains resin.For example, should
Resin may be selected to be acrylic resin, epoxy resin, styrene resin, polyolefin resin, polyoxyalkylene resin or they
Mixture；For example, the monomer may be selected to be isobornyl acrylate monomer (IBOA), isobornyl methacrylate (IBOMA),
Trimethylolpropane trimethacrylate (TMPTA), tri (propylene glycol) diacrylate (TPGDA) etc..
In one specific embodiment of the application, contain low polymer in quantum stippling film, inventors have found that passing through addition
Low polymer can significantly reduce the inconsistent problem of film shrinkage when quantum dot ink dried film forming.
In one specific embodiment of the application, the thickness of quantum stippling film is relatively uniform, and film forming procedure is controllable.
In addition, the manufacturing process about quantum stippling film, is generally realized using inkjet printing mode, about inkjet printing skill
The technology that art is well known to those skilled in the art, i will not repeat them here.
The advantages of in order to better illustrate the application, as shown in Figure 1, for quantum dot ink in the specific embodiment of the application
Quantum stippling film thickness after water cure measures figure.The unit of thickness is micron (μm) in figure.Quantum dot ink is sprayed respectively
On with reeded color membrane substrates, 3 positions (A point, B point, C point) of different print time points are chosen respectively, pass through step
Instrument measures the film thickness of each point.Wherein, the film thickness of A point is 7.17 microns, and the film thickness of B point is 7.15 microns, and the film thickness of C point is 7.18
Micron.Thus illustrate, although the time in A point, B point and C three position marking inks of point is respectively different, A point, B point and C
The thickness of ink printed film forming at three positions of point is close, thus prove that the spraying print procedure of entire film is controllable, and
And finally formed film thickness is also almost the same, quantum stippling film has good homogeneity.
To sum up, by the obtained quantum stippling film of quantum dot ink of the application, printing-filming process control, and at
Film homogeneity is good.
Although inventor has done more detailed elaboration to the technical solution of the application and has enumerated, it should be understood that for
For those skilled in the art, above-described embodiment is modified and/or the flexible or equivalent alternative solution of use is obvious
, cannot all be detached from the essence of the application spirit, the term occurred in the application be used for elaboration to technical scheme and
Understand, the limitation to the application can not be constituted.
Claims (10)
1. a kind of quantum dot ink, including quantum dot, monomer, initiator and solvent, which is characterized in that the quantum dot ink is also
Including low polymer, the boiling point of the low polymer and the monomer is greater than 300 DEG C, and the boiling point of the solvent is less than 250 DEG C.
2. quantum dot ink according to claim 1, which is characterized in that by weight percentage, the low polymer accounts for
10~30wt% of quantum dot ink.
3. quantum dot ink according to claim 1, which is characterized in that by weight percentage, the quantum dot amount of accounting for
0.1~10wt% of son point ink, the monomer account for 20~60wt% of quantum dot ink, and the initiator accounts for quantum dot ink
0.1~10wt%, the solvent accounts for 30~70wt% of quantum dot ink.
4. quantum dot ink according to claim 1, which is characterized in that the viscosity of the low polymer is 10~30cp.
5. quantum dot ink according to claim 1, which is characterized in that the low polymer is polyethylene glycol acrylate
And its derivative, triethylene glycol diacrylate and its derivative, triethyleneglycol acrylate and its derivative, diethylene glycol two
Acrylate and its derivative, diethylene glycol acrylate and its derivative, or, alkyl methacrylate and its derivative
It is at least one.
6. quantum dot ink according to claim 1, which is characterized in that the quantum dot ink further includes resin, described
Resin includes acrylic resin, epoxy resin, styrene resin, polyolefin resin, polyoxyalkylene resin or their mixing
Object.
7. quantum dot ink according to claim 1, which is characterized in that the solvent includes butyl glycol ether, dimethyl
Imidazolone, 2-Butoxyethyl acetate, diethylene glycol monomethyl ether, butyl, diethylene glycol ether, or, diethyl two
At least one of alcohol ethyl methyl ether.
8. quantum dot ink according to claim 1, which is characterized in that the quantum dot ink further includes crosslinking agent.
9. quantum dot ink according to claim 1, which is characterized in that the viscosity of the quantum dot ink is 3~12cp.
10. a kind of quantum stippling film, which is characterized in that be made by the quantum dot ink any in the claims 1~9.
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| CN201910486243.3A CN110305531B (en) | 2019-06-05 | 2019-06-05 | Quantum dot ink and quantum dot color film |
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Cited By (6)
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| CN111471351A (en) * | 2020-04-13 | 2020-07-31 | 深圳市华星光电半导体显示技术有限公司 | Perovskite ink, preparation method of perovskite thin film and display panel |
| CN111505904A (en) * | 2020-04-24 | 2020-08-07 | 苏州星烁纳米科技有限公司 | Quantum dot composition and display device |
| CN111808601A (en) * | 2020-06-05 | 2020-10-23 | 苏州星烁纳米科技有限公司 | Quantum dot composition and display device |
| CN112099266A (en) * | 2020-09-18 | 2020-12-18 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| CN112420972A (en) * | 2020-11-26 | 2021-02-26 | 西安航天三沃化学有限公司 | Graphite-phase carbon nitride quantum dot film and preparation method and application thereof |
| CN113462230A (en) * | 2020-03-30 | 2021-10-01 | 致晶科技（北京）有限公司 | Perovskite nanocrystalline ink and application |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113462230A (en) * | 2020-03-30 | 2021-10-01 | 致晶科技（北京）有限公司 | Perovskite nanocrystalline ink and application |
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| CN112099266A (en) * | 2020-09-18 | 2020-12-18 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| CN112099266B (en) * | 2020-09-18 | 2023-01-17 | 苏州星烁纳米科技有限公司 | Color film, preparation method thereof, processing device and display device |
| CN112420972A (en) * | 2020-11-26 | 2021-02-26 | 西安航天三沃化学有限公司 | Graphite-phase carbon nitride quantum dot film and preparation method and application thereof |
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| CN110305531B (en) | 2022-12-02 |
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