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A conjugated microporous polymer loaded with quantum dots and its preparation method, a quantum dot membrane and a liquid crystal display module

A technology of liquid crystal display modules and conjugated micropores, which is applied in the direction of film/sheet without carrier, non-polymer organic compound adhesives, chemical instruments and methods, etc., which can solve the problem of easy agglomeration of quantum dots and reduce the use of quantum dots Quantity and other issues, to achieve the effect of simple process, reduce the actual usage, and improve the overall optical performance

Active Publication Date: 2020-09-01
NINGBO EXCITON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem that the existing quantum dots are easy to agglomerate, the present invention provides a conjugated microporous polymer loaded with quantum dots and its preparation method, a quantum dot membrane and a liquid crystal display module
The conjugated microporous polymer loaded with quantum dots provided by the invention has good compatibility with the organic polymer glue system, overcomes the problem that quantum dots are easy to agglomerate, and reduces the amount of quantum dots used; the quantum dots provided by the invention The optical performance of the film is better

Method used

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  • A conjugated microporous polymer loaded with quantum dots and its preparation method, a quantum dot membrane and a liquid crystal display module
  • A conjugated microporous polymer loaded with quantum dots and its preparation method, a quantum dot membrane and a liquid crystal display module
  • A conjugated microporous polymer loaded with quantum dots and its preparation method, a quantum dot membrane and a liquid crystal display module

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preparation example Construction

[0055] The preparation method of the conjugated microporous polymer loaded with quantum dots provided by the invention comprises the following steps:

[0056] (1) Preparation of conjugated microporous polymer (CMP): Mix 1,4-dicyanobenzene and zinc chloride powder evenly and put them into a quartz tube, then vacuumize the quartz tube, melt and seal it, and place Heat in a tube furnace at 200-1200°C for 20-80 hours under a nitrogen atmosphere. After cooling to room temperature, take out the powder in the quartz tube, and obtain the desired conjugated microporous polymer CMP after filtration, washing, and Soxhlet extraction;

[0057] (2) Preparation of conjugated microporous polymers loaded with quantum dots: fully stir and mix the quantum dot dispersion liquid and conjugated microporous polymers, and then encapsulate the above-mentioned mixed slurry into polytetrafluoroethylene hydrothermal reaction Kettle, and placed in a high-temperature oven at 40-100 ° C for 12 hours. Afte...

Embodiment 1

[0075] 1. Preparation of conjugated microporous polymer (CMP)

[0076] Mix 1,4-dicyanobenzene (128g, 1mol) and zinc chloride powder (13.6g, 0.1mol) evenly and put them into a quartz tube, then vacuumize the quartz tube, melt and seal it, and place it in a tube The furnace was heated at 600° C. for 40 hours under a nitrogen atmosphere. After cooling to room temperature, the powder in the quartz tube was taken out, and the desired conjugated microporous polymer CMP was obtained after suction filtration, washing, and Soxhlet extraction, with a yield of 94%.

[0077] 2. Preparation of conjugated microporous polymer (QD-CMP) loaded with quantum dots

[0078] With 42.6g 15wt% green cadmium selenide quantum dot dispersion liquid (green cadmium selenide consumption is 6.4g), 42.6g15wt% red cadmium selenide quantum dot dispersion liquid (red cadmium selenide consumption is 6.4g) and above-mentioned 12.8g altogether The yoke microporous polymer CMP was fully stirred and mixed, and the...

Embodiment 2

[0081] As the conjugated microporous polymer provided in Example 1 and the conjugated microporous polymer loaded with quantum dots, in the preparation of the conjugated microporous polymer (CMP), 1,4-dicyanobenzene (128g, 1mol), zinc chloride powder (272g, 2mol) were mixed evenly and packed into a quartz tube.

[0082] Table 1 shows the performance test results of the prepared conjugated microporous polymer and the conjugated microporous polymer loaded with quantum dots.

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Abstract

The invention relates to the field of quantum dot diaphragms, and particularly to quantum dot loaded conjugated microporous polymers and a preparation method thereof, a quantum dot diaphragm and a liquid crystal display module, aiming to solve the problem that quantum dots are easy to reunite. Quantum dots are adsorbed to surfaces of conjugated microporous polymers. The quantum dot loaded conjugated microporous polymers have good compatibility with organic polymer glue system, solves the problem about reuniting of quantum dots, and reduces usage of quantum dots. The quantum dot diaphragm has excellent optical performance. The preparation method of the quantum dot loaded conjugated microporous polymers is simple, high in controllability and low in cost, and can be used for fast realizationof large-scale production and customized fining application.

Description

technical field [0001] The invention relates to the field of quantum dots and quantum dot films, in particular, the invention relates to a conjugated microporous polymer loaded with quantum dots and a preparation method thereof, a quantum dot film and a liquid crystal display module. Background technique [0002] Quantum dots (QDs) are three-dimensional clusters with nanoscale size, so they are also called nanodots. Among them, the II-VI quantum dots composed of the second subgroup and the sixth main group elements have special and excellent fluorescence emission properties. The surface effect, quantum size and macro-tunnel effect of this nano-scale semiconductor structure material make it exhibit many physical and chemical properties that ordinary materials do not have. Therefore, quantum dots have been widely and deeply studied by people. In particular, quantum dots exhibit unique luminescent properties because their diameter is close to the exciton Bohr radius (10nm), ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G73/06C08K3/30C09K11/02C09J179/04C09J7/10C09J4/06C09J4/02
CPCC08G73/0644C08K3/30C09J4/06C09J7/10C09J2203/318C09J2301/414C09J2433/00C09J2479/00C09K11/025
Inventor 李刚徐雍捷李培源徐良霞陈冲孙书政刘伟唐海江张彦
Owner NINGBO EXCITON TECH
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