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Manufacturing method of quantum dot film with high water vapor isolation

A technology of quantum dot film and production method, which is applied in the direction of chemical instruments and methods, luminescent materials, etc., can solve the problems of thick thickness, high price of barrier film, and easy failure of quantum dot film, so as to achieve stability and long-term effectiveness improvement, Efficient isolation of water vapor and oxygen

Active Publication Date: 2020-10-30
NINGBO DXC NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, quantum dots are generally used in glue and sandwiched between two barrier films, and their thickness is relatively thick; in addition, the price of the barrier film is relatively high, and the quantum dot film is prone to failure under long-term erosion of water and oxygen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1, a kind of preparation method of the quantum dot film of high insulation water vapor, comprises the following steps:

[0018] A. preparation has the organic polymer plastic material of hydrophobic property, comprises the following steps:

[0019] (1). Esterification reaction: 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol (OFHD) and catalyst deuterated three Fluoroacetic acid is added to the esterification reaction kettle for esterification reaction, in which PET is 80 parts by mass, organic fluorine monomer is 3 parts by mass, catalyst is 2 parts by mass, the reaction temperature is kept between 220-250 ° C, and the reaction pressure is kept Between 0.3-0.4 MPa;

[0020] (2). Polycondensation reaction: When the water output is about 90% of the theoretical value, vacuumize and enter the polycondensation reaction. After the reaction is completed, discharge the material with nitrogen;

[0021] (3). Purification: Mix the material obtained in step (2) with the org...

Embodiment 2

[0024] Embodiment 2, a method for making a quantum dot film with high water vapor isolation, comprising the following steps:

[0025] A. preparation has the organic polymer plastic material of hydrophobic property, comprises the following steps:

[0026] (1). Esterification reaction: Add PET, organic fluorine monomer as 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol (OFHD) and catalyst phosphoric acid to The esterification reaction is carried out in an esterification reactor, wherein PET is 60 parts by mass, organic fluorine monomer is 2 parts by mass, catalyst is 1 part by mass, the reaction temperature is kept between 220-250 °C, and the reaction pressure is kept at 0.3-0.4 Between MPa;

[0027] (2). Polycondensation reaction: When the water output is about 90% of the theoretical value, vacuumize and enter the polycondensation reaction. After the reaction is completed, discharge the material with nitrogen;

[0028] (3). Purification: Mix the material obtained in step (2) with t...

Embodiment 3

[0031] Embodiment 3, a kind of preparation method of the quantum dot film of high insulation water vapor, comprises the following steps:

[0032] A. preparation has the organic polymer plastic material of hydrophobic property, comprises the following steps:

[0033] (1). Esterification reaction: Add PET, organic fluorine monomer as 2,2,3,3,4,4,5,5-octafluoro-1,6-hexanediol (OFHD) and catalyst boric acid to The esterification reaction is carried out in an esterification reactor, wherein PET is 65 parts by mass, organic fluorine monomer is 1 part by mass, catalyst is 1.2 parts by mass, the reaction temperature is kept between 220-250 °C, and the reaction pressure is kept at 0.3-0.4 Between MPa;

[0034] (2). Polycondensation reaction: When the water output is about 90% of the theoretical value, vacuumize and enter the polycondensation reaction. After the reaction is completed, discharge the material with nitrogen;

[0035] (3). Purification: Mix the material obtained in step (...

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Abstract

The invention discloses a manufacturing method of a quantum dot film with high water vapor isolation. The manufacturing method comprises the following steps: A, preparing an organic polymer plastic material with hydrophobic property; B, enabling the hydrophobic organic polymer plastic material to be in a molten state, and then uniformly mixing quantum dots into the molten organic polymer materialto obtain a base material; and C, carrying out extrusion molding on the base material obtained in the step B to form the quantum dot film. The quantum dots are surrounded by the polymer plastic material, the hydrophobic polymer plastic material can efficiently isolate water vapor and oxygen, and the stability and long-term effectiveness of the quantum dots are greatly improved.

Description

technical field [0001] The invention relates to a manufacturing method of a quantum dot film with high water vapor insulation. Background technique [0002] Quantum dots are nano-scale semiconductors with quantum dot size effects. By applying a certain electric field or light pressure to this nano-semiconductor material, they will emit light of a specific frequency, and the frequency of the emitted light will change with this The size of the semiconductor changes, so the color of the light emitted by the nano-semiconductor can be controlled by adjusting the size of the nano-semiconductor, because the nano-semiconductor has the characteristic of confining electrons and holes, which is similar to the nature of atoms or Molecules are thus called quantum dots. [0003] Since quantum dots are easily eroded by water and oxygen in the air, during the use of quantum dot materials, it is necessary to prepare quantum dot films with water and oxygen barrier functions. At present, qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18C08L67/02C08G63/682C09K11/02
CPCC08J5/18C08G63/6826C09K11/025C08J2367/00
Inventor 罗培栋魏俊峰缪燃
Owner NINGBO DXC NEW MATERIAL TECH
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