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Quantum dot composite material ink, and preparation method and application thereof

A composite material and quantum dot technology, which is applied in the field of quantum dot composite ink and preparation, can solve problems such as the influence of quantum dot ink curing, failure to achieve inkjet effect, easy to block nozzles, etc., achieve excellent anti-flocculation effect, and avoid coffee rings effect, enhance solubility effect

Inactive Publication Date: 2020-06-26
SUZHOU KINGLIGHT OPTOELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The viscosity of the ink on the market is generally high, and it is easy to block the nozzle when inkjet, and the ideal inkjet effect cannot be achieved.
In addition, there are organic solvent impurities in quantum dot inks on the market, which have a certain impact on the curing of quantum dot inks

Method used

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  • Quantum dot composite material ink, and preparation method and application thereof
  • Quantum dot composite material ink, and preparation method and application thereof
  • Quantum dot composite material ink, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] S1, 37.5wt% novolac epoxy acrylate, 37.5wt% isobornyl methacrylate and 5wt% 2,4,6-trimethylbenzoyl-diphenylphosphine oxide were mixed at room temperature, Use a rotor agitator to stir and disperse until the solids are completely dissolved to obtain a colorless UV ink;

[0042] S2, 10wt% red Mn: InP / ZnS x Se 1-x - TOPO (manganese doped, shell ZnSe and ZnS, ligand is TOPO) quantum dot composite powder grinding, after 300 mesh sieve, after weighing, take an appropriate amount and add it to the above UV ink, then add 10wt% propylene glycol Methyl ether acetate, pre-mixed and shaken with a blender;

[0043] S3. Put the above-mentioned pre-mixed composite material ink into an ultrasonic cleaner for ultrasonication, and add UV ink drop by drop to the preset ink volume. The whole process lasts for 20-40 minutes. The final quantum dot composite material ink is clear and transparent without precipitation.

Embodiment 2

[0045] The preparation method is basically the same as that of Example 1, the difference is that

[0046] Novolak epoxy acrylate 30wt%;

[0047] Isobornyl methacrylate 30wt%;

[0048] 2,4,6-trimethylbenzoyl-diphenylphosphine oxide 5wt%;

[0049] Red Mn: InP / ZnS x Se 1-x -TOPO (manganese doped, shell ZnSe and ZnS, ligand is TOPO) quantum dot composite material 25wt%;

[0050] Propylene glycol methyl ether acetate 10wt%.

Embodiment 3

[0052] The preparation method is basically the same as that of Example 1, the difference is that

[0053] Novolak epoxy acrylate 22.5wt%;

[0054] Isobornyl methacrylate 22.5wt%;

[0055] 2,4,6-trimethylbenzoyl-diphenylphosphine oxide 5wt%;

[0056] Red Mn: InP / ZnS x Se 1-x -TOPO (manganese doped, shell ZnSe and ZnS, ligand is TOPO) quantum dot composite material 40wt%;

[0057] Propylene glycol methyl ether acetate 10wt%.

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Abstract

The invention discloses a quantum dot composite material ink. The quantum dot composite material ink comprises 40-90 wt% of UV ink, 10-40 wt% of a quantum dot composite material and 0.1-20wt% of a dispersant, the quantum dot composite material is solid powder, and the dispersant is one or more of propylene glycol methyl ether acetate, alkynediol, dodecanediol polyether, alkyl imidazoline, alkynediol ethoxylate, fatty alcohol polyoxyethylene ether, disodium sulfosuccinate and aminopropyltrimethoxysilane. The invention further discloses a stable quantum dot composite material with a high luminous efficiency. When the quantum dot composite material ink is adopted for ink jetting and dispensing, the process is smooth, and the phenomenon that a spray head is blocked is avoided; and after packaging is completed, an aging test shows that the quantum dot composite material has excellent stability.

Description

technical field [0001] The invention relates to the field of nanotechnology, more specifically, to a quantum dot composite ink, a preparation method and an application. Background technique [0002] Chinese patent 201811202426.X, quantum dot ink and quantum dot color film, discloses that the quantum dot ink uses esters with a ring structure as a solvent, and the ink contains at least two esters with different boiling points, which can effectively inhibit ink droplets. The phenomenon that the quantum dots are deposited to the edge reduces the coffee ring effect, and the polarity of the esters with a ring structure is generally very weak, and the steric hindrance is large. The inks on the market are generally relatively viscous, and it is easy to clog the nozzle during inkjet, which cannot achieve the ideal inkjet effect. In addition, there are organic solvent impurities in quantum dot inks on the market, which have a certain impact on the curing of quantum dot inks. Therefo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/30C09D11/38F21V9/32
CPCC09D11/30C09D11/38F21V9/32
Inventor 龚文邵鹏睿杨吉
Owner SUZHOU KINGLIGHT OPTOELECTRONICS CO LTD
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