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A kind of quantum dot sealant containing macromolecule stabilizer and preparation method thereof

A macromolecular stabilizer and quantum dot technology, which can be used in inks, coatings, household appliances, etc., can solve the problems of quantum dot performance degradation and quantum dot instability

Active Publication Date: 2020-06-16
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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  • A kind of quantum dot sealant containing macromolecule stabilizer and preparation method thereof
  • A kind of quantum dot sealant containing macromolecule stabilizer and preparation method thereof
  • A kind of quantum dot sealant containing macromolecule stabilizer and preparation method thereof

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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 according to the following parts by weight:

[0052]

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

[0054] The macromolecular stabilizer for quantum dot protection 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 described macromolecular stabilizer for protecting quantum dots with A-co-B copolymerization structure is prepared by the following reaction formula:

[0056]

[0057] where R 1 It is a monofunctional acrylate group of an alkane segment with more than 10 carbon atoms, a monofunctional acrylate group of a polymer segment with a number average molecular weight of 600 to 3000, and one of the bifunctional acrylate groups. species; R 2is ...

Embodiment 2

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

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

[0081]

[0082] A method for preparing a quantum dot sealant containing a macromolecular stabilizer, comprising the following steps:

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

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

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

[0086] (4) prepare each component according to the following parts by weight:

[0087]

[0088]

[0089] (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;

[0090] (6...

Embodiment 3

[0093] Embodiment 3: This embodiment provides a quantum dot sealant containing a macromolecular stabilizer, and a preparation method thereof. The components and steps are basically the same as those in Embodiments 1 and 2, and the differences are:

[0094] It is prepared by mixing the components according to the following parts by weight:

[0095]

[0096]

[0097] A method for preparing a quantum dot sealant containing a macromolecular stabilizer, comprising the following steps:

[0098] (1) Preparation of polystyrene-b-polyacrylic acid (PS-b-PMAA);

[0099] (2) preparing curable resin containing (meth)acryloyl group;

[0100] (3) preparing epoxy group-containing curable resin;

[0101] (4) prepare each component according to the following parts by weight:

[0102]

[0103] (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;

[0104] (6) Filter ...

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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 macromolecular stabilizer and a preparation method thereof. Background technique [0002] Combining quantum dot display materials and LEDs can improve 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. A layer of quantum dot film is added between the LCD and the backlight module; 2. The quantum dot display material is used to replace the traditional phosphor powder and LED encapsulation glue and directly encapsulate it on the LED chip ; Both schemes convert part of the blue light of the blue LED into red and green light through the light conversion properties of the quantum dot material. Compared with the white light emitted by the traditi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/44C08F220/06C09D183/04C09D11/08C08F293/00C08F212/08
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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