CN111607291A - Quantum dot ink and quantum dot color film - Google Patents
Quantum dot ink and quantum dot color film Download PDFInfo
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- CN111607291A CN111607291A CN201910131775.5A CN201910131775A CN111607291A CN 111607291 A CN111607291 A CN 111607291A CN 201910131775 A CN201910131775 A CN 201910131775A CN 111607291 A CN111607291 A CN 111607291A
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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
- C09D11/50—Sympathetic, colour changing or similar 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
- C09D11/02—Printing inks
- C09D11/03—Printing inks characterised by features other than the chemical nature of the binder
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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
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing
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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
- C09D11/02—Printing inks
- C09D11/10—Printing inks based on artificial resins
- C09D11/102—Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
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Abstract
The invention discloses a quantum dot ink and a color film, wherein the quantum dot ink comprises the following components in percentage by weight: 0.01-40% of quantum dots; 5% -20% of silicon rubber; 50% -95% of organic solvent; wherein the quantum dots and the silicone rubber are dispersed in an organic solvent. The quantum dot ink contains silicon rubber, and only needs to be heated during curing, so that ultraviolet rays are not needed, and the quantum dots are prevented from being damaged by the ultraviolet rays. And the silicon rubber has lower curing temperature, so that the damage of the temperature to the quantum dots is further reduced, and the quantum dots are not adversely affected in the curing process. In addition, the silicon rubber has better solubility in an organic solvent, so that the quantum dot ink has better stability. The quantum dot color film comprises quantum dots and silicon rubber.
Description
Technical Field
The application relates to quantum dot ink and a quantum dot color film.
Background
A typical quantum dot ink is cured by irradiation of ultraviolet rays. However, during the photo-curing process, the quantum dots are easily damaged by ultraviolet rays, which may cause the quantum dots to fail, thereby adversely affecting the use of the quantum dot ink.
Disclosure of Invention
In view of the above technical problems, the present application provides a quantum dot ink that does not require ultraviolet curing.
In one aspect, a quantum dot ink is disclosed, which comprises the following components in percentage by weight: 0.01-40% of quantum dots; 5% -20% of silicon rubber; 50% -95% of organic solvent; wherein the quantum dots and the silicone rubber are dispersed in an organic solvent.
The quantum dot ink contains silicon rubber, and the silicon rubber is cured only by heating, so that ultraviolet rays are not needed in the curing process, and the quantum dots are prevented from being damaged by the ultraviolet rays. And the silicon rubber has lower curing temperature, so that the damage of the temperature to the quantum dots is further reduced, and the quantum dots are not adversely affected in the curing process. In addition, the silicon rubber has better solubility in an organic solvent, so that the quantum dot ink has better stability.
In one embodiment, the silicone rubber has a cure temperature of no greater than 120 ℃.
The curing temperature of the silicone rubber means the temperature required for curing the silicone rubber. When the temperature is lower than the curing temperature, the silicone rubber is not cured. When the curing temperature of the silicon rubber is not higher than 120 ℃, the silicon rubber can be cured at 120 ℃ or below, so that the damage of the temperature to the quantum dots is reduced.
Preferably, the curing temperature of the silicone rubber may be not higher than 100 ℃ or 80 ℃ or 65 ℃.
In one embodiment, the organic solvent is selected from at least one of an alkane organic solvent or an aromatic organic solvent.
The inventor finds that the silicone rubber has good solubility and dispersibility in alkane organic solvents and aromatic organic solvents. Therefore, when the organic solvent is selected from alkane organic solvents or aromatic organic solvents, the silicone rubber can be uniformly dispersed in the organic solvents and is not easy to precipitate, so that the quantum dot ink has good stability.
Further, the alkane organic solvent includes branched and straight-chain saturated aliphatic hydrocarbon organic solvent CnH2n+2And a cycloalkane organic solvent CmH2mWherein n and m are positive integers, n is more than or equal to 10 and m is less than or equal to 18. For example, alkane organic solvents include, but are not limited to, hexane, heptane, octane, nonane, decane, undecane, dodecane, tridecane, tetradecane, pentadecane, hexadecane, heptadecane, octadecane, cyclodecane, and the like, cycloundecane, and isomers thereof.
Still further, the aromatic hydrocarbon-based organic solvent includes, but is not limited to, toluene, ethylbenzene, o-xylene (o-), m-xylene (m-), p-xylene (p-), o-chlorotoluene, p-chlorotoluene, m-chlorotoluene, o-diethylbenzene (o-), m-diethylbenzene (m-), p-diethylbenzene (p-), o-dichlorobenzene, m-dichlorobenzene, p-dichlorobenzene, trimethylbenzene, tetramethylbenzene, tripentylbenzene, pentyltoluene, 1-methylnaphthalene, dihexylbenzene, butylbenzene, sec-butylbenzene, tert-butylbenzene, isobutylbenzene, dibutylbenzene, isopropylbenzene, p-methylisopropylbenzene, p-diisopropylbenzene, pentylbenzene, dipentylbenzene, dodecylbenzene, tetrahydronaphthalene, cyclohexylbenzene, 1,3, 5-trimethylbenzene cyclohexylbenzene, 1-chloronaphthalene, 1-tetrahydronaphthalenone, 3-phenoxytoluene, p-diethylbenzene, pentylbenzene, dipentylbenzene, dodecylbenzene, tetrahydro, 1-methoxynaphthalene, dimethylnaphthalene, 3-isopropylbiphenyl, 1,2, 4-trimethylbenzenebiphenyl, benzyl benzoate, benzyl ether, benzyl benzoate, indene, benzylbenzene, divinylbenzene, indane, styrene oxide, and the like, or any mixture thereof.
In one embodiment, the quantum dot comprises a ligand selected from at least one of oleylamine, oleic acid, or dodecyl mercaptan.
The ligand of the quantum dot is selected from oleylamine, oleic acid or dodecyl mercaptan, the solubility of the quantum dot in silicone rubber and an organic solvent is improved, and the quantum dot has good dispersibility in the quantum dot ink.
In one embodiment, the mass ratio of the ligand to the quantum dots is in the range of 10% to 50%.
The inventors found that when the mass fraction of the ligand in the quantum dot is within this range, the quantum dot has better solubility in silicone rubber and organic solvents, so that the quantum dot has excellent dispersibility in quantum dot ink. The quantum dot ink is not easy to generate precipitation, and the stability of the quantum dot ink is improved.
In one embodiment, the viscosity of the quantum dot ink ranges from 2cP to 35cP (centipoise).
The inventors found that when the viscosity of the quantum dot ink is within this range, the quantum dot ink is suitable for a printing apparatus, and the printing apparatus can smoothly print the quantum dot ink.
In another aspect, a quantum dot color film is disclosed, comprising:
quantum dots;
silicon rubber, wherein the quantum dots are dispersed in the silicon rubber; wherein the content of the first and second substances,
the mass ratio range of the quantum dots to the silicon rubber is 1: 50-8: 1.
in one embodiment, the quantum dot comprises a ligand selected from at least one of oleylamine, oleic acid, or dodecyl mercaptan.
The inventor finds that the ligand of the quantum dot is selected from amine, oleic acid or dodecyl mercaptan, and can improve the solubility of the quantum dot in the silicon rubber, so that the quantum dot has good dispersibility in the silicon rubber, and the light emission of the quantum dot color film is uniform.
In one embodiment, the mass ratio of the ligand to the quantum dots is in the range of 10% to 50%.
The inventor finds that when the mass fraction of the ligand in the quantum dots is within the range, the quantum dots have good dispersibility in the silicon rubber, and therefore, the light emission of the quantum dot color film is more uniform.
In one embodiment, the thickness of the quantum dot color film is 1-25 micrometers.
The inventor finds that when the thickness of the quantum dot color film is within the range, the improvement of the light extraction efficiency of light is facilitated.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a quantum dot color film in the present application.
In the drawings like parts are provided with the same reference numerals. The figures show embodiments of the application only schematically.
Detailed Description
The technical solutions in the examples of the present application will be described in detail below with reference to the embodiments of the present application. It should be noted that the described embodiments are only some embodiments of the present application, and not all embodiments.
Quantum dot ink
The first embodiment is as follows:
the quantum dot ink of this embodiment includes: 30 wt% of CdSe/ZnS quantum dots, 10 wt% of silicon rubber and 60 wt% of decane.
The curing temperature of the silicone rubber was 65 ℃.
The quantum dot ligand is oleylamine, and the content of the ligand is 10 wt%.
The viscosity of the quantum dot ink was 5 cP.
Example two:
the quantum dot ink of this embodiment includes: 1 wt% InP/ZnS quantum dots, 20 wt% silicone rubber, 79 wt% 1,2, 3-trimethylbenzene.
The curing temperature of the silicone rubber was 80 ℃.
The ligand of the quantum dot is oleic acid, and the content of the ligand is 45 wt%.
The viscosity of the quantum dot ink was 32 cP.
Example three:
the quantum dot ink of this embodiment includes: 35 wt% of CdZnSeS/ZnS quantum dots, 5 wt% of silicone rubber, 25 wt% of bromotoluene and 35 wt% of decane
The curing temperature of the silicone rubber was 65 ℃.
The ligands of the quantum dots are oleic acid and oleylamine, and the content of the ligands is 20 wt%.
The viscosity of the quantum dot ink was 10 cP.
Example four:
the quantum dot ink of this embodiment includes: 10 wt% of CdZnSeS/ZnS quantum dots, 10 wt% of silicone rubber, 80 wt% of tetralin.
The curing temperature of the silicone rubber was 65 ℃.
The ligand of the quantum dot is dodecyl mercaptan, and the content of the ligand is 18 wt%.
The viscosity of the quantum dot ink was 8 cP.
Quantum dot color film
Example five:
referring to fig. 1, a quantum dot color film 10 of the embodiment is carried by a substrate 20. The quantum dot color film 10 is obtained by printing the quantum dot ink disclosed in the first embodiment on a substrate, removing the organic solvent, and heating and curing.
The quantum dot color film 10 comprises CdSe/ZnS quantum dots and silicon rubber. The mass ratio of the CdSe/ZnS quantum dots to the silicone rubber is 3: 1 the quantum dot color film has a thickness of 3 microns.
EXAMPLE six
The quantum dot color film of the embodiment is carried by the substrate. And the quantum dot color film is obtained by printing the quantum dot ink disclosed in the second embodiment on a substrate, removing the organic solvent, and heating and curing.
The quantum dot color film comprises InP/ZnS quantum dots and silicon rubber. The mass ratio of the InP/ZnS quantum dots to the silicon rubber is 1: 20 the quantum dot color film has a thickness of 10 μm.
EXAMPLE seven
The quantum dot color film of the embodiment is carried by the substrate. And the quantum dot color film is obtained by printing the quantum dot ink disclosed in the third embodiment on a substrate, removing the organic solvent, and heating and curing.
The quantum dot color film comprises CdZnSeS/ZnS quantum dots and silicon rubber. The mass ratio of the CdZnSeS/ZnS quantum dots to the silicon rubber is 7: 1 the quantum dot color film has a thickness of 20 microns.
Example eight
The quantum dot color film of the embodiment is carried by the substrate. The quantum dot color film is obtained by printing the quantum dot ink disclosed in the first embodiment on a substrate, removing the organic solvent, and heating and curing.
The quantum dot color film comprises CdZnSeS/ZnS quantum dots and silicon rubber. The mass ratio of the CdZnSeS/ZnS quantum dots to the silicon rubber is 1: 1 the quantum dot color film has a thickness of 7 microns.
Although the present disclosure has been described and illustrated in greater detail by the inventors, it should be understood that modifications and/or alterations to the above-described embodiments, or equivalent substitutions, will be apparent to those skilled in the art without departing from the spirit of the disclosure, and that no limitations to the present disclosure are intended or should be inferred therefrom.
Claims (10)
1. A quantum dot ink comprising, in weight percent:
0.01-40% of quantum dots;
5% -20% of silicon rubber;
50% -95% of organic solvent; wherein the content of the first and second substances,
the quantum dots and the silicone rubber are dispersed in the organic solvent.
2. The quantum dot ink according to claim 1, wherein the curing temperature of the silicone rubber is not higher than 120 ℃.
3. The quantum dot ink of claim 1, wherein the organic solvent is selected from at least one of an alkane organic solvent or an aromatic hydrocarbon organic solvent.
4. The quantum dot ink of claim 3, wherein the quantum dot comprises a ligand selected from at least one of oleylamine, oleic acid, or dodecyl mercaptan.
5. The quantum dot ink as claimed in claim 4, wherein the ligand accounts for 10-50% of the quantum dot by mass.
6. The quantum dot ink of claim 1, wherein the viscosity of the quantum dot ink ranges from 2cP to 35 cP.
7. A quantum dot color film comprising:
quantum dots;
silicone rubber in which quantum dots are dispersed; wherein the content of the first and second substances,
the mass ratio range of the quantum dots to the silicon rubber is 1: 50-8: 1.
8. the quantum dot color film of claim 7, wherein the quantum dot comprises a ligand, and the ligand is selected from at least one of oleylamine, oleic acid, or dodecyl mercaptan.
9. The quantum dot color film of claim 8, wherein the ligand accounts for 10-50% of the quantum dot by mass.
10. The quantum dot color film of claim 7, wherein the thickness of the quantum dot color film is 1-25 microns.
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| CN201910131775.5A CN111607291B (en) | 2019-02-22 | 2019-02-22 | Quantum dot ink and quantum dot color film |
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| CN201910131775.5A CN111607291B (en) | 2019-02-22 | 2019-02-22 | Quantum dot ink and quantum dot color film |
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Cited By (1)
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| CN112126265A (en) * | 2020-09-28 | 2020-12-25 | 杭州肄康新材料有限公司 | Anticorrosion hydrophobic antibacterial coating in seawater and preparation method thereof |
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