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Quantum dot sealant containing macromolecular stabilizer and preparation method of quantum dot sealant

A macromolecular stabilizer, quantum dot technology, applied in applications, coatings, inks, etc., can solve the problems of quantum dot performance degradation and quantum dot instability

Active Publication Date: 2018-06-22
DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the prior art, to provide a quantum dot sealant containing a macromolecular stabilizer, and a preparation method thereof, so as to solve the problem of quantum dot instability in the existing sealant under long-term high temperature and ultraviolet irradiation conditions , and the performance of quantum dots is greatly reduced

Method used

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  • Quantum dot sealant containing macromolecular stabilizer and preparation method of quantum dot sealant
  • Quantum dot sealant containing macromolecular stabilizer and preparation method of quantum dot sealant
  • Quantum dot sealant containing macromolecular stabilizer and preparation method of quantum dot sealant

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Embodiment 1

[0051] Embodiment 1: This embodiment provides a quantum dot sealant containing a macromolecular stabilizer, which is prepared by mixing the components in the following parts by weight:

[0052]

[0053] Wherein, the number average molecular weight of the macromolecule stabilizer for quantum dot protection is 3500-55000.

[0054] The macromolecular stabilizer for protecting quantum dots is a macromolecular copolymer having an A-b-B diblock structure, an A-b-B-b-A triblock structure, and an A-co-B copolymer structure.

[0055] The macromolecular stabilizer for quantum dot protection with A-co-B copolymer structure is prepared by the following reaction formula:

[0056]

[0057] Among them, R 1It is a monofunctional acrylate group of an alkane chain segment with more than 10 carbon atoms, a monofunctional acrylate group of a polymer chain segment with a number average molecular weight of 600-3000, or a difunctional acrylate group. species; R 2 is a hydrogen atom or a met...

Embodiment 2

[0079] Embodiment 2: This embodiment provides a quantum dot sealant containing a macromolecular stabilizer, and a preparation method thereof. Its components and steps are basically the same as in Embodiment 1, except that:

[0080] It is prepared by mixing the components according to the following parts by weight:

[0081]

[0082] A kind of preparation method of the described quantum dot sealant containing macromolecular stabilizer, it may further comprise the steps:

[0083] (1) Preparation of polylauryl methacrylate-co-polyacrylonitrile (PLMA-co-PAN);

[0084] (2) preparing curable resin containing (meth)acryloyl group;

[0085] (3) prepare curable resin containing epoxy group;

[0086] (4) Prepare each component by following parts by weight:

[0087]

[0088] (5) Prepare a planetary vacuum mixer, place each component prepared in step (4) in a planetary vacuum mixer, and stir at a temperature of 40°C to 50°C to obtain a mixture;

[0089] (6) Filter the mixture obt...

Embodiment 3

[0092] Embodiment 3: This embodiment provides a quantum dot sealant containing a macromolecular stabilizer, and a preparation method thereof. Its components and steps are basically the same as those in Embodiment 1 and 2, except that:

[0093] It is prepared by mixing the components according to the following parts by weight:

[0094]

[0095] A kind of preparation method of the described quantum dot sealant containing macromolecular stabilizer, it may further comprise the steps:

[0096] (1) Preparation of polystyrene-b-polyacrylic acid (PS-b-PMAA);

[0097] (2) preparing curable resin containing (meth)acryloyl group;

[0098] (3) prepare curable resin containing epoxy group;

[0099] (4) Prepare each component by following parts by weight:

[0100]

[0101] (5) Prepare a planetary vacuum mixer, place each component prepared in step (4) in a planetary vacuum mixer, and stir at a temperature of 40°C to 50°C to obtain a mixture;

[0102] (6) Filter the mixture obtaine...

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Abstract

The invention discloses a quantum dot sealant containing a macromolecular stabilizer. The quantum dot sealant is characterized by being prepared by mixing the following components in parts by weight:4-10 of macromolecular stabilizer for quantum dot protection, 30-70 of (methyl)acryloyl-containing curing resin, 5-20 of epoxy-containing curing resin, 0.3-2 of photoinitiator, 10-40 of reactive diluent and 1-3 of auxiliary, wherein the number-average molecular weight of the macromolecular stabilizer for quantum dot protection is 3500-55000. The invention further discloses a preparation method ofthe quantum dot sealant containing the macromolecular stabilizer.

Description

technical field [0001] The invention relates to the field of sealing materials, in particular to a quantum dot sealant containing a macromolecule stabilizer and a preparation method thereof. Background technique [0002] Combining quantum dot display materials with LEDs can increase the color gamut of the display and obtain better display effects. This new technology has already begun to be used in products such as LCD TVs, tablet computers and mobile phones. At present, there are usually two schemes for implementing this technology: 1. Add a layer of quantum dot film between the LCD and the backlight module; 2. Use quantum dot display materials instead of traditional phosphor powder and LED encapsulant to mix and directly package on the LED chip ; Both of these schemes convert a part of the blue light of the blue LED into red light and green light through the light conversion performance of the quantum dot material. Compared with the white light emitted by traditional LED...

Claims

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Application Information

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IPC IPC(8): C09D183/04C09D11/08C08F220/18C08F220/44C08F220/06C08F293/00C08F212/08
CPCC08F293/005C08L2201/08C08L2205/03C09D11/08C09D183/04C08L53/00C08L83/06C08K5/526C08K5/13C08F220/1812
Inventor 吴博舒小辉张英维成浩冠张小中刘兆辉
Owner DONGGUAN POWERBOND NEW MATERIALS TECH DEV
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