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Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof

A thin-film material and luminescent color technology, applied in the field of photoelectric functional polymer materials, can solve the problems of polluted environment and poor transparency, and achieve the effects of simple preparation method, low cost and good flexibility

Active Publication Date: 2012-11-28
HEBEI YEZHIYUAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the problems of polluting the environment and poor transparency in the prior art, and propose a flexible, environmentally friendly, transparent, and adjustable luminous color film material and its preparation method

Method used

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  • Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof
  • Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof
  • Flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1. After diluting mercaptopropionic acid with DMF solvent, mix with quantum dot CuInS 2 / ZnS chloroform solution mixed, ultrasonic treatment, to realize the transfer of the organic phase to the water phase, to obtain the DMF colloidal solution of quantum dots.

[0027] Step 2, disperse cyanoethyl cellulose with a dielectric constant of 15 in a DMF solvent, stir until completely dissolved, so that the concentration of cyanoethyl cellulose is 10g / L, and obtain a DMF solution of cyanoethyl cellulose;

[0028] Step 3. Add the DMF colloidal solution of quantum dots that emit red light to the DMF solution of cyanoethylcellulose at room temperature, so that the quantum dots account for 2.5%, 5%, 10% and 25% of the mass of cyanoethylcellulose respectively. %, stirring, so that the quantum dots are evenly distributed in the DMF solution of cyanoethyl cellulose to obtain a mixed solution, and its fluorescence spectrum is as follows figure 1 shown;

[0029] Step 4. Prepare ...

Embodiment 2

[0032] Step 1. After diluting mercaptopropionic acid with DMF solvent, mix with quantum dot CuInS 2 / ZnS chloroform solution mixed, ultrasonic treatment, to realize the transfer of the organic phase to the water phase, to obtain the DMF colloidal solution of quantum dots.

[0033] Step 2, disperse cyanoethyl cellulose with a dielectric constant of 25 in a DMF solvent, stir until completely dissolved, so that the concentration of cyanoethyl cellulose is 100g / L, and obtain a DMF solution of cyanoethyl cellulose;

[0034] Step 3. Add quantum dots CuInS emitting yellow-green, orange, pink to red light to the DMF solution of cyanoethylcellulose at room temperature 2 The DMF colloidal solution of / ZnS, all make quantum dot account for 10% of cyanoethyl cellulose quality, stir, make quantum dot evenly distribute in the DMF solution of cyanoethyl cellulose, obtain the mixed solution of four different colors;

[0035]Step 4. Prepare a luminescent film material by casting the mixed sol...

Embodiment 1

[0037] For the comparative example of embodiment one:

[0038] 1) Disperse cyanoethyl cellulose in N,N dimethylformamide, stir at 60°C to dissolve it completely, and prepare a cyanoethyl cellulose DMF solution with a concentration of 10g / L.

[0039] 2) Add oleic acid-modified red-emitting CuInS directly to the cyanoethylcellulose DMF solution at room temperature 2 / ZnS chloroform solution, control the quantum dots to account for 10% of the mass fraction of the cyanoethyl cellulose DMF solution, stir the mixed solution for half an hour, so that the quantum dots are dispersed in the cyanoethyl cellulose DMF solution;

[0040] 3) Cast the above mixed solution into a glass vessel with a flat bottom, control the temperature at 70° C. under vacuum conditions, and dry to obtain a film material.

[0041] The film material obtained in the above-mentioned embodiment 1 is uniform and transparent, and the quantum dots have good dispersibility in the DMF solution of cyanoethylcellulose. E...

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Abstract

The invention relates to a flexible, environmentally-friendly, transparent and adjustable-illuminant-color film material and a preparation method thereof, belonging to the field of photoelectric functional high polymer materials. The preparation method comprises the following steps of: diluting mercaptopropionic acid with a DMF (Dimethyl Formamide) solvent, and mixing with a chloroform solution of quantum dots CuInS2 / ZnS to obtain a DMF colloidal solution of the quantum dots; dispersing cyanoethyl cellulose into the DMF solvent, and stirring till the cyanoethyl cellulose is fully dissolved and the concentration of the cyanoethyl cellulose is 10-100 g / L to obtain a DMF solution of cyanoethyl cellulose; mixing the two solutions at room temperature till the quantum dots account for 2.5-25 percent by mass of the cyanoethyl cellulose, and stirring till the quantum dots are uniformly distributed in the DMF solution of the cyanoethyl cellulose to obtain a mixed solution; and pouring the mixed solution to prepare the film material. The obtained film material has the characteristics of nontoxicity, environmental friendliness, transparency, flexibility, adjustable illuminant color and adjustable area. The preparation method is simple and has low cost and high industrial practicability.

Description

technical field [0001] The invention relates to a flexible, environmentally friendly, transparent, and adjustable luminous color film material and its preparation method, in particular to a flexible, environmentally friendly, multi-color luminous film material based on high dielectric transparent polymers and new environmentally friendly quantum dots and its preparation The method belongs to the field of photoelectric functional polymer materials. Background technique [0002] Quantum dots are quasi-zero-dimensional inorganic semiconductor materials with a size ranging from a few nanometers to a dozen nanometers. Due to the influence of quantum size effects and dielectric confinement effects, they show unique fluorescence characteristics, making quantum dots widely used in optoelectronics and biology. etc. have broad application prospects. The composite material of quantum dots and polymers is widely used in quantum dot devices, because it not only exerts the photoluminesce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L1/28C08K3/30C08J5/18
Inventor 邵自强王慧庆钟海政陈冰昆王飞俊王文俊李佳张腾
Owner HEBEI YEZHIYUAN CHEM CO LTD
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