Nanometer luminescent fiber and preparation method thereof

A light-emitting fiber and nanotechnology, which is applied in fiber processing, fiber chemical characteristics, rayon manufacturing, etc., can solve the problems of difficult dispersion of quantum dots and high packaging requirements, and achieve the effect of reducing packaging requirements

Active Publication Date: 2016-12-21
TCL CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a nano-luminescent fiber and its preparation method, aiming to solve the problem that quantum dots are difficult to disperse to form an electrospinning solution in the existing method, and quantum dots gather on the surface to cause fluorescence self-absorption effect, and higher requirements on the packaging of subsequent applications

Method used

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  • Nanometer luminescent fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Preparation of Zn X Cd 1-X Se / ZnS quantum dot solid nanofiber, the steps are as follows:

[0041] (1) Preparation of quantum dot spinning solution: Zn prepared by hot injection method X Cd 1-X Se / ZnS quantum dot mixture, the Zn X Cd 1-X The Se / ZnS quantum dot mixture was washed and dried under vacuum at 60 °C to obtain solid quantum dots. Take 60 mg of the powdered quantum dot solid and add 7.5 mL of CHCl 3 , stirred for 30 min, dissolved to obtain a uniform quantum dot solution. Then add 2.5 mL tetrahydrofuran (THF) solution additive to the quantum dot solution, mix well, then add 3.75 g polymethyl methacrylate (PMMA) solid polymer, stir magnetically at room temperature for 3 h, dissolve evenly, and obtain a solution with a certain viscosity. and conductive quantum dot spinning solution.

[0042] (2) Preparation of quantum dot solid nanofibers: Put the quantum dot spinning solution obtained in step (1) into the spraying device of the electrospinning equipment f...

Embodiment 2

[0044] Preparation of Zn X Cd 1-X Se / ZnS quantum dot tubular nanofibers, the steps are as follows:

[0045] (1) Preparation of quantum dot spinning solution: Zn prepared by hot injection method X Cd 1-X Se / ZnS quantum dot reaction solution, the Zn X Cd 1-X The Se / ZnS quantum dot reaction solution was washed and dried under vacuum at 60° C. to obtain a quantum dot solid. Add 120 mg of this quantum dot solid in powder form to 7.5 mL of CHCl 3 , stirred for 30 minutes, and dissolved to obtain a uniform quantum dot solution. Add 2.5mL THF solution additive to the quantum dot solution, mix evenly, then add 3.25g PMMA solid polymer, stir magnetically at room temperature for 3h, dissolve evenly, and obtain a quantum dot spinning solution with a certain viscosity and conductivity.

[0046] (2) Preparation of quantum dot tubular nanofibers: Put the quantum dot spinning solution obtained in step (1) into the spraying device of the electrospinning equipment for spinning, use the d...

Embodiment 3

[0048] Preparation of Zn X CD 1-X Se / ZnS quantum dot ribbon nanofibers, the steps are as follows:

[0049] (1) Preparation of quantum dot spinning solution: Zn prepared by hot injection method X CD 1-X Se / ZnS quantum dot reaction solution, the Zn X CD 1-X The Se / ZnS quantum dot reaction solution was washed and dried under vacuum at 60° C. to obtain a quantum dot solid. Add 150 mg of powdered quantum dot solid to 7.5 mL of CHCl 3 , stirred for 30 min, and dissolved to obtain a uniform quantum dot solution. Add 2.5mL THF solution additive to the quantum dot solution, mix evenly, then add 3g PMMA solid polymer, stir magnetically at room temperature for 3h, dissolve evenly, and obtain a quantum dot spinning solution with a certain viscosity and conductivity.

[0050] (2) Preparation of quantum dot ribbon nanofibers: Put the quantum dot spinning solution obtained in step (1) into the spraying device of the electrospinning equipment for spinning, and use the drum-type aluminu...

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Abstract

The invention discloses a nanometer luminescent fiber and a preparation method thereof. The method comprises the steps that quantum dots are taken to be added into an organic solvent, stirring dissolution is performed to obtain a quantum dot solution; a solution additive is added into the quantum dot solution, mixing is performed to be uniform, then, solid polymer is added, stirring dissolution is performed to obtain an uniform quantum dot spinning solution; the quantum dot spinning solution is placed into a jet apparatus device of electrostatic spinning equipment for performing electrostatic spinning, and nanometer luminescent fiber is obtained. The method is simple, controllable and easy to repeat, the oil soluble quantum dot solution of any kind can be adopted for spinning, in the electrostatic spinning process, and the nanometer luminescent fiber of different shapes such as solid nanometer fiber, tubular nanometer fiber and strap nanometer fiber is obtained by adjusting the conditions such as the mass percentage of the components in the electrostatic spinning solution, electrostatic spinning voltage, the solution injection rate, the solution injection distance and the spun nanometer luminescent fiber drying temperature.

Description

technical field [0001] The invention relates to the field of quantum dot synthesis, in particular to a nano-luminescent fiber and a preparation method thereof. Background technique [0002] In the past two decades, great progress has been made in the synthesis and application of luminescent quantum dots. Luminescent quantum dots are widely used in lighting, display, detection and other fields due to their characteristics of narrow emission half-peak width, adjustable band gap, and high fluorescence intensity. [0003] In the application fields such as display and detection, due to the nanoscale size of quantum dots, the surface will be oxidized under the influence of oxygen and moisture in the air, which will cause the surface ligands to fall off, resulting in the agglomeration of quantum dots and then causing fluorescence quenching. For subsequent applications to bring greater restrictions. To solve this problem, some studies prepared quantum dots into polymer nanofibers,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F1/10D01F6/52D01D5/00
CPCD01D5/003D01F1/10D01F6/52
Inventor 覃辉军杨一行
Owner TCL CORPORATION
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